CN119801438A

CN119801438A - Recoverable pumping sealing device

Info

Publication number: CN119801438A
Application number: CN202311314088.XA
Authority: CN
Inventors: 宋杰; 古聪华; 石善志; 张继卓; 高峰; 付瑞; 刘昆; 姜冰宣; 李作阳; 张永亮; 刘德伟; 张东明; 宋晓宇; 唐健; 安家轩
Original assignee: China National Petroleum Corp; China Petroleum Logging Co Ltd
Current assignee: China National Petroleum Corp; China Petroleum Logging Co Ltd
Priority date: 2023-10-11
Filing date: 2023-10-11
Publication date: 2025-04-11
Anticipated expiration: 2043-10-11
Also published as: CN119801438B

Abstract

The present invention relates to the field of well logging engineering technology, and is a recyclable pumping sealing device, including a joint assembly, a detection assembly and a sealing assembly installed together in sequence from top to bottom; the detection assembly can obtain the position of the detection assembly in the well according to the change of the material of the adjacent casing and casing coupling in the well. The present invention has a reasonable and compact structure and is easy to use. It provides pumping force through fracturing fluid to achieve horizontal well sealing and meet the needs of fracturing work. The sealing assembly is pumped to the target position in the well, and then the target position is sealed after the fracturing fluid acts on the sealing assembly. After the seal is intact, the joint assembly is lifted by the winch to separate from the sealing assembly, so as to recover the joint assembly and the detection assembly. The detection assembly can measure the number of casing hoops used to connect two adjacent casings in the well, so as to determine the depth of the detection assembly lowered into the oil well, which is convenient for detecting the position of the detection assembly in the well.

Description

Recoverable pumping sealing device

Technical Field

The invention relates to the technical field of logging engineering, in particular to a recyclable pumping sealing device.

Background

A typical wellbore model in unconventional oil and gas production is by drilling a long horizontal section at the required vertical depth, then running the casing and cementing the casing. In the well completion stage, a channel with a reservoir is established mainly through a perforation process, and the channel is opened in a fracturing mode and the contact area between the channel and the reservoir is increased so as to achieve the purpose of increasing yield. A more common process is to use a technique called "bridge plug perforation co-operation" which requires the placement of plugs to isolate a particular zone and then perforating the zone at a location designed to allow stimulation of the reservoir in that zone, at the end of which the plugs are typically worn away and the well fluid can be returned and produced.

During the production increasing period, the liquid inlet and sand inlet amount of each perforation cluster in each fracturing section in the fracturing process are measured in real time, and the method has a certain value. Several well known measurement methods are capable of determining the feed rate of each cluster, but to date, due to deployment difficulties, none of the methods have been available to monitor the feed rate of each cluster in real time during stimulation.

In the fracturing construction process, the state that the underground sealing equipment is communicated with and connected with the ground equipment is required to be maintained, so that bridge plug sealing is realized, and in fact, solid components in liquid used for fracturing are possibly deposited on the top of the sealing equipment to prevent the recovery of the device, so that the whole construction difficulty is increased due to underground complexity.

Disclosure of Invention

The invention provides a recyclable pumping sealing device, which overcomes the defects of the prior art, and can effectively solve the problem that the recovery of the device is blocked by the possibility that solid components in liquid used for fracturing are deposited on the top of sealing equipment when the communication and connection between underground sealing equipment and ground equipment are required to be maintained in the existing fracturing construction process.

The technical scheme of the invention is realized by the following measures that the recyclable pumping sealing device comprises a joint assembly, a detection assembly and a setting assembly which are sequentially arranged from top to bottom;

the detection assembly can obtain the position of the detection assembly in the well according to the change of materials of adjacent casings and casing couplings in the well;

The joint assembly is capable of connecting the detection assembly and the ground equipment together;

The setting assembly can seal the target position, can leave the sealing state of keeping the target position in the pit after being separated with the detection assembly when retrieving, and simultaneously the fracturing fluid can make the setting assembly drive the detection assembly and the joint assembly to move in the horizontal well after acting on the setting assembly.

The following are further optimizations and/or improvements to the above-described inventive solution:

The setting assembly can comprise a ball seat, a hinge barrel, a thrust barrel, a valve core mechanism, a central shaft, a setting ball, a centralizing tailstock and a leather cup, wherein the upper end of the ball seat and the lower end of the detecting assembly are fixedly installed together in a sealing way, the inner side of the lower part of the ball seat is provided with a hinge groove with a downward opening, the upper end of the hinge barrel is fixedly provided with the hinge ball which is hinged in the hinge groove, the inner side of the lower end of the hinge barrel and the outer side of the upper end of the thrust barrel are fixedly installed together, a plurality of liquid inlet holes which are communicated with each other inside and outside are uniformly distributed on the outer side of the upper part of the hinge barrel corresponding to the position above the thrust barrel along the circumference at intervals, the inner side of the thrust barrel is provided with a through-flow channel which is penetrated up and down, the upper end of the thrust barrel is provided with the valve core mechanism which can open and close the through-flow channel, the inner side of the lower part of the through-flow channel is sleeved with a hollow central shaft, a second elastic reset piece is arranged between the upper part of the central shaft and the lower part of the thrust barrel, the central shaft and the upper part of the setting ball are fixedly installed together, a plurality of liquid outlet holes which are communicated with each other inside and outside are uniformly distributed on the outer side of the lower part of the central shaft corresponding to the position above the setting ball along the circumference at intervals, a centralizing tailstock is sleeved on the outer side of the lower part of the central shaft corresponding to the position above the liquid outlet holes, the upper end of the centralizing tailstock and the lower end of the thrust cylinder are installed together, a guide ring table is fixed on the outer side of the lower part of the central shaft corresponding to the position below the thrust cylinder, a conical outer guide surface with a large upper part and a small lower part is arranged on the outer side of the lower part of the guide ring table, a guide ring groove is arranged on the outer side of the upper part of the centralizing tailstock corresponding to the position of the guide ring table, a plurality of radially through inner guide installation holes are uniformly distributed on the middle part of the guide ring groove along the circumference at intervals, a retaining ring is fixedly installed in the guide ring groove, radially through outer guide installation holes are arranged on the outer side of the retaining ring corresponding to the positions of each inner guide installation hole, a wedge block is slidingly installed in each inner guide installation hole, the guide posts penetrating through the outer guide mounting holes at the corresponding positions are fixed on the outer side of each wedge block, the inner side of the upper part of each wedge block is a conical surface matched with the outer guide surface, a first elastic reset piece which can enable the inner side of each wedge block to prop against the outer side of each guide ring table is arranged between the outer side of each wedge block and the inner side of each buckle ring, a lower gland is mounted on the outer side of each buckle ring corresponding to the upper side of each guide post, an upper gland is mounted on the outer side of the upper part of each thrust cylinder corresponding to the lower position of each hinged cylinder, a plurality of annular separation plates are arranged between the upper gland and the lower gland at intervals, and leather cups are mounted on the upper side and the lower side of each separation plate.

The valve core mechanism comprises a valve cover, a valve rod and a third elastic reset piece, the outer side of the lower part of the valve cover is fixedly arranged in the first straight hole, the center of the upper end of the valve cover is provided with a vertically through switch hole, the inner side of the valve cover is sleeved with a T-shaped valve rod with a large upper part and a small lower part, the outer side of the lower part of the valve rod is sleeved in the third straight hole, a third elastic reset piece which can enable the upper end of the valve rod to be in sealing contact with the inner side of the upper part of the valve rod is arranged between the step surface of the valve rod and the outer side of the upper part of the valve rod, a first step surface is arranged on the inner side of the upper part of the righting tailstock corresponding to the upper end position of the guide ring table, and a limit table is arranged between the upper end of the first step surface of the guide ring and the upper end of the valve cover.

The outer side of the lower part of the centralizing tailstock corresponding to the position below the retaining ring can be uniformly provided with a plurality of radially penetrating check holes along the circumferential interval, each check hole is internally provided with a compression screw in a threaded manner, a check pin is sleeved in the check hole corresponding to the position between the compression screw and the outer side of the central shaft, a fourth elastic reset piece which enables the end part of the check pin to prop against the outer side of the central shaft is arranged between the compression screw and the check pin, and a check ring groove is arranged on the outer side of the central shaft corresponding to the position between the check hole and the lower end of the centralizing tailstock.

The first filter screen screw is detachably and fixedly arranged in the liquid inlet hole, the upper part of the setting ball is provided with a fixing groove with an upward opening, the outer side of the lower part of the central shaft is fixedly arranged in the fixing groove, the inner side of the lower part of the central shaft corresponding to the position above the liquid outlet hole is provided with a second step surface, the inner side of the lower part of the central shaft is fixedly provided with a second filter screen screw with the upper end in contact with the second step surface, and the outer side of the lower part of the second filter screen screw corresponding to each liquid outlet hole is provided with a filter channel communicated with the inner side of the central shaft.

The hinge groove can comprise a first hinge hole, a second hinge hole and a third hinge hole which are sequentially communicated from top to bottom, the inner wall of the second hinge hole is spherical, the hinge ball is hinged in the second hinge hole, a lock nut is fixedly arranged on the inner side of the lower part of the third hinge hole, the lock nut is sleeved on the outer side of the upper part of the Y-shaped hinge cylinder with the inverted cross section, an annular gasket is sleeved on the inner side of the lower part of the first hinge hole, and a fifth elastic reset piece which enables the inner side of the lower end of the annular gasket to be propped against the upper part of the hinge ball is arranged on the inner side of the upper part of the first hinge hole.

The detection assembly can comprise an outer tube, upper magnetic steel, lower magnetic steel, a coil assembly, a first connecting cable and a second connecting cable, the outer side of the upper end of the ball seat and the inner side of the lower end of the outer tube are fixedly installed together in a sealing mode, the inner side of the upper end of the outer tube is sleeved with an upper hollow connecting rod, an upper buffer sleeve is installed between the upper end of the upper connecting rod and the lower end of the joint assembly, an upper fixed ring table is fixedly installed on the outer side of the upper connecting rod, a coil ring sleeve is fixedly installed on the outer side of the lower portion of the upper connecting rod, a coil ring groove is formed in the outer side of the coil sleeve corresponding to the upper position and the lower position of the lower end of the coil ring groove, a threading hole communicated with the inner side of the coil ring sleeve is formed in the upper portion of the coil ring groove, the coil assembly is installed in the coil ring groove corresponding to the upper end of the upper connecting rod, an annular upper magnetic steel is installed on the outer side of the upper connecting rod corresponding to the position of the lower position of the upper fixed ring table, a lower buffer sleeve is arranged between the lower end of the lower connecting rod and the upper end of the ball seat, a lower fixed ring table is fixedly installed on the outer side of the lower fixed ring table, a coil ring sleeve is fixedly installed on the outer side of the lower connecting rod corresponding to the lower end of the lower connecting rod is fixedly connected with the upper end of the upper connecting rod through the upper end of the upper connecting rod and the upper end of the first connecting rod and the second connecting rod is fixedly connected with the upper end of the upper connecting rod through the upper connecting piece.

The upper end of the coil sleeve can be provided with an upper mounting groove with an upward opening, the lower part of the upper magnetic steel is sleeved in the upper mounting groove, a plurality of mounting clamping grooves which are vertically penetrated are arranged on the outer side of the upper fixing ring table along the circumference at intervals, an upper elastic sheet which is propped against the outer side of the upper part of the upper magnetic steel is fixedly arranged in each clamping groove, the middle part of each upper elastic sheet is outwards protruded and then propped against the inner side of the outer tube, the lower end of the coil sleeve is provided with a lower mounting groove with a downward opening, and the upper part of the lower magnetic steel is sleeved in the lower mounting groove.

The inner side of the upper end of the upper connecting rod can be fixedly provided with a first insulating sleeve, the inner side of the first insulating sleeve is fixedly provided with a wiring terminal, the lower end of the wiring terminal is fixedly connected with the upper end of the first connecting cable, and the upper end of the wiring terminal is in contact with the joint component.

The connector assembly can comprise a salvaging head, a middle connector, a second insulating sleeve, a contact pin, a jack seat and a contact, wherein the outer side of the lower end of the middle connector is fixedly arranged on the inner side of the upper end of the outer tube in a sealing manner, the upper end of the middle connector is fixedly arranged together with the lower end of the salvaging head of a hollow structure, the contact pin is fixedly arranged on the inner side of the upper part of the middle connector, the second insulating sleeve is fixedly arranged on the inner side of the lower part of the middle connector corresponding to the lower position of the contact pin, the jack seat is arranged on the inner side of the upper part of the second insulating sleeve, the inner side of the upper end of the jack seat is tightly sleeved with the outer side of the lower end of the contact pin, the contact is arranged on the inner side of the lower end of the second insulating sleeve, and a sixth elastic resetting piece which can enable the lower end of the contact pin to be propped against the upper end of the connecting terminal is arranged between the lower end of the jack seat and the contact pin.

The connector assembly can also comprise a gland bush, a sealing socket, a third connecting cable, a fourth connecting cable, a locking mechanism and a centralizing elastic piece, wherein an outer annular groove is arranged on the outer side of the upper part of the middle connector, a connecting sleeve which is arranged in half and half is sleeved in the outer annular groove, the outer side of the upper part of the connecting sleeve and the inner side of the lower end of the salvaging head are fixedly arranged together, a gland is fixedly arranged on the inner side of the upper part of the middle connector, the gland is sleeved with the sealing socket of which the inner side of the lower part is tightly sleeved with the outer side of the upper part of the contact pin, the inner side of the middle part of the salvaging head is sleeved with a wiring sleeve, the lower end of the wiring sleeve is connected with the sealing socket through the third connecting cable, the upper end of the wiring sleeve is fixedly provided with a cable sleeve, the upper end of the fourth connecting cable passes through the salvaging head and is positioned above the salvaging head, the inner side of the upper part of the salvaging head is provided with the locking mechanism which can fix the fourth connecting cable, the upper sliding sleeve is sleeved on the outer side of the upper part of the fishing head corresponding to the position of the upper centralizing groove, a plurality of upper sliding blocks which can move up and down in the upper centralizing groove are fixedly mounted on the inner side of the upper sliding sleeve along the circumference interval, an upper telescopic groove with a downward opening is formed between the outer side of the lower part of each upper sliding block and the inner side of the upper sliding sleeve, a lower sliding sleeve is sleeved on the outer side of the lower part of the fishing head corresponding to the position of the lower centralizing groove, a lower sliding block which can move up and down in the lower centralizing groove is fixedly mounted on the inner side of the lower sliding sleeve corresponding to the position of each upper sliding block, a lower telescopic groove with an upward opening is formed between the outer side of the upper part of each lower sliding block and the inner side of the lower sliding sleeve, centralizing elastic pieces are inserted in the lower telescopic grooves corresponding to positions, and the middle part of each centralizing elastic piece is outwards arched.

The locking mechanism can comprise a first taper sleeve, a second taper sleeve, a third taper sleeve, a locking sleeve and a pressing sleeve, wherein the thread sleeve is fixedly installed on the inner side of the upper part of the fishing head, the outer side of the lower end of the thread sleeve is fixedly installed on the inner side of the upper end of the first taper sleeve, a plurality of anti-rotation grooves are uniformly distributed on the outer side of the middle part of the first taper sleeve along the circumferential interval, anti-rotation screw holes which are communicated internally and externally are formed in the outer side of the upper part of the fishing head corresponding to the positions of each anti-rotation groove, anti-rotation screws with the end parts positioned in the corresponding positions are in each anti-rotation screw hole in a threaded manner, the inner side of the lower part of the first taper sleeve is a conical surface which is small at the upper part and large at the lower part, the inner side of the lower part of the first taper sleeve is sleeved with the second taper sleeve, the inner side of the second taper sleeve is a conical surface which is matched with the inner side of the first taper sleeve, the inner side of the third taper sleeve is sleeved with the inner side of the third taper sleeve, connecting wires between the outer side of the second taper sleeve and the inner side of the first taper sleeve are respectively provided with anti-rotation screw holes which are communicated, and the upper ends of the connecting wires between the inner side of the second taper sleeve and the inner side of the third taper sleeve are respectively corresponding to the inner side of the second taper sleeve and the inner side of the second taper sleeve are fixedly installed on the lower end of the locking sleeve.

A fifth connecting cable can be fixedly connected between the lower end of the locking sleeve and the upper end of the middle joint.

The insulating layer can be arranged between the outer side of the upper part of the third connecting cable and the outer side of the lower part of the fourth connecting cable, the inner side of the middle part of the centralizing elastic piece is provided with the wear-resistant base, the outer side of the wear-resistant base is fixedly provided with the U-shaped wear-resistant block with the cross section being opened inwards, the inner side of the wear-resistant block and the outer side of the wear-resistant base form a fixing hole, and the outer side of the middle part of the centralizing elastic piece is fixedly arranged in the fixing hole.

The invention has reasonable and compact structure and convenient use, provides pumping force through the fracturing fluid, realizes the setting of the horizontal well, meets the requirement of fracturing work, pumps the setting component to the underground target position, then seals the target position after the setting component is acted by the fracturing fluid, lifts the joint component by the winch after the sealing is complete, can realize the mutual separation with the setting component, thereby recovering the joint component and the detection component, and the detection component can measure the number of casing joint hoops used for connecting two adjacent casings in the well, thereby determining the depth of the detection component in the oil well and being convenient for detecting the position of the detection component in the underground.

Drawings

Fig. 1 is a schematic view of an upper part of an embodiment in a cross-sectional front view.

Fig. 2 is a schematic diagram of a cross-sectional front view of a middle portion of an embodiment.

Fig. 3 is a schematic view of a cross-sectional front view of a lower portion of an embodiment.

Fig. 4 is an enlarged schematic view of the structure a in fig. 1.

FIG. 5 is an enlarged schematic cross-sectional view of the centering spring at B-B of FIG. 1.

Fig. 6 is an enlarged schematic view of the structure at C in fig. 2.

Fig. 7 is an enlarged schematic view of the structure shown at D in fig. 2.

Fig. 8 is an enlarged schematic view of the structure at E in fig. 3.

Fig. 9 is an enlarged schematic view of the structure F in fig. 3.

Fig. 10 is a connection block diagram of the coil assembly in the seventh embodiment.

The codes in the drawings are respectively: 1 is a ball seat, 2 is a hinge cylinder, 3 is a thrust cylinder, 4 is a central shaft, 5 is a setting ball, 6 is a righting tailstock, 7 is a leather cup, 8 is a guide ring table, 9 is an outer guide surface, 10 is a clasp, 11 is a wedge block, 12 is a guide post, 13 is a first elastic resetting piece, 14 is a hinge ball, 15 is a second elastic resetting piece, 16 is a liquid outlet hole, 17 is a lower gland, 18 is an upper gland, 19 is a baffle plate, 20 is a first straight hole, 21 is a second straight hole, 22 is a third straight hole, 23 is a fourth straight hole, 24 is a fifth straight hole, 25 is a slot, 26 is a valve cover, 27 is a valve rod, 28 is a third elastic resetting piece, 29 is a limiting ring table, 30 is a switch hole, 31 is a compression screw, 32 is a return pin, 33 is a fourth elastic resetting piece, 34 is a return ring groove, 35 is a first filter screen screw, 36 is a second filter screen screw, 37 is a filter channel, 38 is a ring gasket, 39 is a lock nut, 40 is a fifth elastic restoring member, 41 is an outer tube, 42 is an upper magnetic steel, 43 is a lower magnetic steel, 44 is a coil assembly, 45 is a first connecting cable, 46 is a second connecting cable, 47 is an upper connecting rod, 48 is an upper buffer sleeve, 49 is an upper fixed ring table, 50 is a coil sleeve, 51 is a sealing member, 52 is a lower connecting rod, 53 is a lower buffer sleeve, 54 is a lower fixed ring table, 55 is a soldering lug, 56 is an upper elastic sheet, 57 is a first insulating sleeve, 58 is a connecting terminal, 59 is a middle joint, 60 is a second insulating sleeve, 61 is a pin, 62 is a jack seat, 63 is a contact, 64 is a sixth elastic restoring member, 65 is a gland sleeve, 66 is a sealing socket, 67 is a third connecting cable, 68 is a fourth connecting cable, 69 is a righting elastic sheet, 70 is a connecting sleeve, 71 is a wire sleeve, 72 is a cable sleeve, 73 is an upper sliding sleeve, 74 is an upper sliding block, 75 is a lower sliding sleeve, 76 is a lower sliding block, 77 is a salvaging head, 78 is a first taper sleeve, 79 is a second taper sleeve, 80 is a third taper sleeve, 81 is a locking sleeve, 82 is a compressing sleeve, 83 is a thread sleeve, 84 is an anti-rotation screw, 85 is a fixing piece, 86 is a fifth connecting cable, 87 is an insulating layer, 88 is a wear-resistant base, and 89 is a wear-resistant block.

Detailed Description

The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.

In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout form of fig. 1 of the specification, for example, the positional relationship of front, rear, upper, lower, left, right, etc. is determined according to the layout direction of the drawing of the specification.

The invention is further described below with reference to examples and figures:

1-3, the recyclable pumping sealing device comprises a joint assembly, a detection assembly and a setting assembly which are sequentially installed together from top to bottom;

In the use, provide pumping force through fracturing fluid, realize the horizontal well setting, satisfy the demand of fracturing work, pump setting subassembly to target position department in the pit, then seal the target position after setting subassembly effect through fracturing fluid, lift the joint component up the winch after the seal is intact, can realize the mutual separation with setting subassembly, thereby retrieve joint component and detection component, because connect through the casing coupling between two adjacent casings, the casing is different with the material of casing coupling, detection component can measure the casing joint hoop quantity that is used for connecting two adjacent casings in the well, thereby confirm the degree of depth that detection component went into the oil well, be convenient for detect the position of detection component in the pit, the invention is rational in infrastructure and compact, and convenient for use, has safety, portably, efficient characteristics.

The above-mentioned recyclable pumping sealing device may be further optimized or/and modified according to actual needs:

Embodiment two: as the optimization of the embodiment, as shown in figures 2, 3, 7 and 9, the setting assembly comprises a ball seat 1, a hinge barrel 2, a thrust barrel 3, a valve core mechanism, a central shaft 4, a setting ball 5, a centralizing tail seat 6 and a leather cup 7, the upper end of the ball seat 1 and the lower end of the detection assembly are fixedly installed together in a sealing way, the inner side of the lower part of the ball seat 1 is provided with a hinge groove with a downward opening, the upper end of the hinge barrel 2 is fixedly provided with a hinge ball 14 which is fixedly hinged in the hinge groove, the inner side of the lower end of the hinge barrel 2 and the outer side of the upper end of the thrust barrel 3 are fixedly installed together, a plurality of liquid inlet holes which are communicated with each other from inside to outside are uniformly distributed along the circumference at intervals on the outer side of the upper part of the hinge barrel 2 corresponding to the upper part of the thrust barrel 3, the inner side of the thrust barrel 3 is provided with a through-flow passage which is provided with a valve core mechanism capable of opening and closing the through-passage, the inner side of the lower part of the through-flow passage is sleeved with a hollow central shaft 4, a second elastic resetting piece 15 is arranged between the upper part of the central shaft 4 and the lower part of the thrust cylinder 3, the lower end of the central shaft 4 is fixedly arranged with the upper part of the setting ball 5, a plurality of liquid outlet holes 16 which are communicated with the inside and the outside are uniformly distributed along the circumference on the outer side of the lower part of the central shaft 4 corresponding to the upper part of the setting ball 5, a centralizing tailstock 6 is sleeved on the outer side of the lower part of the central shaft 4 corresponding to the upper part of the liquid outlet holes 16, the upper end of the centralizing tailstock 6 is arranged with the lower end of the thrust cylinder 3, a guide ring table 8 is fixed on the outer side of the lower part of the central shaft 4 corresponding to the lower part of the thrust cylinder 3, a conical outer guide surface 9 with the upper part and the lower part of the guide ring table 8 is provided with a guide ring groove, a plurality of radially through inner guide mounting holes are uniformly distributed along the circumference on the middle part of the guide ring groove, a retaining ring 10 is fixedly arranged in the guide ring groove, the outer side of the retaining ring 10 corresponding to the position of each inner guide mounting hole is provided with a radially through outer guide mounting hole, each inner guide mounting hole is internally provided with a wedge block 11 in a sliding manner, the outer side of each wedge block 11 is fixedly provided with a guide column 12 penetrating through the outer guide mounting hole at the corresponding position, the inner side of the upper part of each wedge block 11 is a conical surface matched with the outer guide surface 9, a first elastic reset piece 13 capable of enabling the inner side of each wedge block 11 to prop against the outer side of the guide ring table 8 is arranged between the outer side of each retaining ring 10, the outer side of the retaining ring 10 corresponding to the upper side of each guide column 12 is provided with a lower gland 17, the outer side of the upper part of the thrust cylinder 3 corresponding to the position below the hinge cylinder 2 is provided with an upper gland 18, a plurality of annular partition plates 19 are arranged between the upper gland 18 and the lower gland 17, and leather cups 7 are arranged on the upper side and the lower side of each partition plate 19.

According to the requirement, the inner side of the lower end of the lower gland 17 and the upper side of the guide post 12 are provided with chamfer structures. In the use, through such setting, when the setting subassembly is located the horizontal well, high pressure fracturing fluid acts on the leather cup 7, begin to promote the leather cup 7 and remove, the leather cup 7 acts on lower gland 17 and guide post 12, make thrust cylinder 3, center pin 4, right tailstock 6 and setting ball 5 wholly remove along the horizontal well, can drive the detection component like this and remove in the horizontal well, the pressure fracturing fluid promotes the leather cup 7 and removes to the target position, continue to rise pressure, the leather cup 7 receives the extrusion expansion back setting target position, lift up coupling assembling again, thrust cylinder 3 and right tailstock 6 are separated each other, the realization is kept in the sealed state of target position in the pit after the separation of thrust cylinder 7 and detection component when retrieving.

Embodiment III: as shown in fig. 3 and 8, the through-flow channel includes a first straight hole 20, a second straight hole 21, a third straight hole 22, a fourth straight hole 23 and a fifth straight hole 24 which are sequentially communicated from top to bottom, the inner diameters of the first straight hole 20, the second straight hole 21 and the third straight hole 22 are sequentially reduced, the inner diameters of the third straight hole 22, the fourth straight hole 23 and the fifth straight hole 24 are sequentially increased, a plurality of open inward slots 25 are uniformly distributed on the step surface between the second straight hole 21 and the third straight hole 22 at intervals, the valve core mechanism includes a valve cover 26, a valve rod 27 and a third elastic reset piece 28, the outer side of the lower part of the valve cover 26 is fixedly installed in the first straight hole 20, a vertically through switch hole 30 is arranged at the center of the upper end of the valve cover 26, a T-shaped valve rod 27 with the upper and lower parts is sleeved in the third straight hole 22, a step surface between the second straight hole 21 and the third straight hole 22 and the outer side of the upper part of the valve rod 27 are respectively provided with a plurality of open inward slots 25, the valve core mechanism includes a valve cover 26, the valve cover 27 and the upper end of the third straight hole 4 are correspondingly provided with a third elastic reset piece 29, and the upper end of the valve cover is correspondingly provided with a top of the first guide ring and a third guide ring and a fifth ring seat 29.

According to the requirement, the upper end of the valve rod 27 and the inner side of the upper part of the valve cover 26 are both in a conical shape with a small upper part and a big lower part, a sealing ring is arranged at the upper end of the valve rod 27, and the third elastic reset piece 28 is a known technology, such as a compression spring. In the use process, through such setting, when the setting assembly is located in the horizontal well, high-pressure fracturing fluid acts on the leather cup 7 to start pushing the leather cup 7 to move, because the second elastic reset piece 15 enables the guide ring platform 8 to prop against the wedge block 11 and then enables the guide post 12 to stretch out, so that the leather cup 7 acts on the lower gland 17 and the guide post 12, the thrust cylinder 3, the central shaft 4, the centralizing tailstock 6 and the setting ball 5 integrally move along the horizontal well, if the pressure is too high, the fracturing fluid enters the inner side of the thrust cylinder 3 from the fluid inlet hole and then acts on the upper end of the valve rod 27 through the switch hole 30, the valve rod 27 downwards compresses the third elastic reset piece 28 and then enters the through-flow channel in the thrust cylinder 3, then flows into the third straight hole 22 through the grooving 25, and finally flows out of the fluid outlet hole 16 to release pressure.

When the setting ball 5 reaches the setting position, the setting ball 5 is not moved after being blocked, at this time, the central shaft 4 and the centralizing tailstock 6 are mutually close to squeeze the second elastic reset piece 15, the liquid outlet hole 16 is blocked by the inner wall of the centralizing tailstock 6, the wedge block 11 is inwards closed under the action of the first elastic reset piece 13, meanwhile, the guide post 12 is retracted into the centralizing tailstock 6, at this time, the pressure fracturing fluid pushes the leather cup 7 to move to the target position, the pressure is continuously increased, the leather cup 7 is squeezed and expanded to set the target position, the connecting component is lifted up, the thrust cylinder 3 and the centralizing tailstock 6 are mutually separated, and the sealing ball 5 is kept in the sealing state of the target position underground after being separated from the detecting component during recovery.

In the fourth embodiment, as shown in fig. 3 and 9, a plurality of radially penetrating check holes are uniformly distributed on the outer side of the lower portion of the centralizing tailstock 6 corresponding to the lower portion of the retaining ring 10 along the circumference at intervals, a compression screw 31 is screwed in each check hole, a check pin 32 is sleeved in the check hole corresponding to the position between the compression screw 31 and the outer side of the central shaft 4, a fourth elastic reset piece 33 enabling the end of the check pin 32 to prop against the outer side of the central shaft 4 is arranged between the compression screw 31 and the check pin 32, and a check ring groove 34 is arranged on the outer side of the central shaft 4 corresponding to the position between the check hole and the lower end of the centralizing tailstock 6.

In the use, through such setting, can avoid center pin 4 to upwards move behind the too big messenger fourth elasticity restoring member 33 inefficacy of distance, guarantee the reliability of center pin 4 and setting ball 5 in the use, the center pin 4 outside of check ring groove 34 below position is equipped with the safety slot according to the demand, the centering tailstock 6 lower part outside of corresponding safety slot position is equipped with the insurance hole of inside and outside intercommunication, fixed mounting has the terminal part to be located the insurance pin of insurance slot in the insurance hole, can prevent like this to cause the trouble after the transportation center pin 4 reciprocates, fourth elasticity restoring member 33 is the compression spring of current well known.

In the fifth embodiment, as shown in fig. 3 and 8, a first filter screen screw 35 is detachably and fixedly installed in the liquid inlet hole, a fixing groove with an upward opening is formed in the upper portion of the setting ball 5, the outer side of the lower portion of the central shaft 4 is fixedly installed in the fixing groove, a second step surface is formed on the inner side of the lower portion of the central shaft 4 corresponding to the position above the liquid outlet hole 16, a second filter screen screw 36 with the upper end in contact with the second step surface is fixedly installed on the inner side of the lower portion of the central shaft 4, and a filter channel 37 communicated with the inner side of the central shaft 4 is formed on the outer side of the lower portion of the second filter screen screw 36 corresponding to the position of each liquid outlet hole 16.

According to the requirement, the first filter screen screw 35 and the second filter screen screw 36 are both known in the prior art, and are hollow screws with a filter screen fixed on the inner side of the middle part. In the use, through this setting, avoid in the well impurity get into center pin 4 and thrust section of thick bamboo 3 and the case mechanism in make the action of center pin 4 and case mechanism appear unusual, influence setting operation.

In a sixth embodiment, as shown in fig. 2,3, 7 and 8, the hinge groove comprises a first hinge hole, a second hinge hole and a third hinge hole which are sequentially communicated from top to bottom, the inner wall of the second hinge hole is spherical, the hinge ball 14 is hinged in the second hinge hole, a lock nut 39 is fixedly arranged on the inner side of the lower part of the third hinge hole, the lock nut 39 is sleeved on the outer side of the upper part of the Y-shaped hinge cylinder 2 with an inverted section, an annular gasket 38 is sleeved on the inner side of the lower part of the first hinge hole, and a fifth elastic reset piece 40 which enables the inner side of the lower end of the annular gasket 38 to prop against the upper part of the hinge ball 14 is arranged on the inner side of the upper part of the first hinge hole.

According to the demand, ball seat 1 lower part outside is equipped with the locating hole with the third hinge hole intercommunication, the lock nut 39 outside of corresponding locating hole position is equipped with the constant head tank, install the locating pin that the tip is located the constant head tank in the locating hole, can avoid lock nut 39 taking place not hard up in the use like this and make articulated ball 14 and ball seat 1 each other separate, the ball seat 1 outside of corresponding first hinge hole position is equipped with the oil filler point of inside and outside intercommunication, the sealed spiro union has the oiling plug in the oil filler point, through such setting, be convenient for pack lubricating grease to the hinge inslot, reduce the wearing and tearing between articulated ball 14 and the ball seat 1, fifth elastic reset piece 40 is current known technique, for example to the top wave spring. In the use process, the locking nut 39 is arranged, so that the disassembly and assembly between the hinging ball 14 and the ball seat 1 are convenient, and the maintenance cost is reduced.

Embodiment seven: as an optimization of the above embodiment, as shown in fig. 1,2, 6 and 10, the detecting assembly comprises an outer tube 41, an upper magnetic steel 42, a lower magnetic steel 43, a coil assembly 44, a first connecting cable 45 and a second connecting cable 46, the outer side of the upper end of the ball seat 1 and the inner side of the lower end of the outer tube 41 are fixedly installed together in a sealing manner, the upper end of the outer tube 41 and the lower end of the joint assembly are fixedly installed together in a sealing manner, a hollow upper connecting rod 47 is sleeved on the inner side of the upper end of the outer tube 41, an upper buffer sleeve 48 is installed between the upper end of the upper connecting rod 47 and the lower end of the joint assembly, an upper fixing ring table 49 is fixedly installed on the outer side of the upper portion of the upper connecting rod 47, a coil sleeve 50 is fixedly installed on the outer side of the lower portion of the upper connecting rod 47, a coil ring groove is arranged on the outer side of the middle portion of the coil sleeve 50, sealing members 51 are arranged between the outer side of the coil sleeve 50 and the inner side of the outer tube 41 corresponding to the upper and lower positions of the coil ring groove, the upper part of the coil ring groove is provided with a threading hole communicated with the inner side of the coil ring groove 50, the coil ring groove is internally provided with a coil assembly 44, the outer side of an upper connecting rod 47 corresponding to the position between the upper end of the coil ring groove 50 and the lower end of an upper fixed ring table 49 is provided with an annular upper magnetic steel 42, the inner side of the lower part of the coil ring groove 50 is fixedly provided with a lower connecting rod 52, a lower buffer sleeve 53 is arranged between the lower end of the lower connecting rod 52 and the upper end of a ball seat 1, the outer side of the lower part of the lower connecting rod 52 is fixedly provided with a lower fixed ring table 54, the outer side of the lower connecting rod 52 corresponding to the position between the lower end of the coil ring groove 50 and the upper end of the lower fixed ring table 54 is provided with an annular lower magnetic steel 43, the upper end of the lower magnetic steel 43 and the lower end of the upper magnetic steel 43 are both N poles, the outer side of the upper fixed ring table 49 is fixedly provided with a welding lug 55, the lower end of the joint assembly and one end of the coil assembly 44 are electrically connected with a first connecting cable 45 penetrating through the upper connecting rod 47 and the threading hole in a sealing way, the other end of the coil assembly 44 and the tab 55 are electrically connected together by a second connecting cable 46.

The seal 51 is a seal ring known in the art, as required. In the use process, through the arrangement, when the coil assembly 44 passes through the adjacent sleeves and the sleeve coupling for connecting the two sleeves, the magnetic field of the upper magnetic steel 42 and the magnetic field of the lower magnetic steel 43 change, so that potential difference is generated at the two ends of the coil assembly 44, current is generated in the coil assembly 44, then signals are upwards transmitted through the first connecting cables 45, the ground equipment can obtain the number of the sleeves passing through the coil assembly 44 according to the change times of the current, the depth in the well of the coil assembly 44 can be obtained after accumulating the lengths of the passed sleeves, the lower end of the joint assembly is electrically connected with one end of the coil assembly 44 through the first connecting cables 45 which are arranged in the upper connecting rod 47 in a penetrating mode in a sealing mode and in the threading hole, and the other end of the coil assembly 44 is electrically connected with the soldering lug 55 through the second connecting cable 46, so that the connection of the coils forms a loop.

As shown in fig. 2 and 6, the coil sleeve 50 is provided with an upper mounting groove with an upward opening at the upper end, the lower part of the upper magnetic steel 42 is sleeved in the upper mounting groove, a plurality of mounting clamping grooves penetrating up and down are arranged at the outer side of the upper fixing ring table 49 along the circumference at intervals, an upper elastic sheet 56 with the inner side of the lower end propped against the outer side of the upper part of the upper magnetic steel 42 is fixedly arranged in each clamping groove, the middle part of each upper elastic sheet 56 is outwards protruded and then propped against the inner side of the outer tube 41, the lower end of the coil sleeve 50 is provided with a lower mounting groove with a downward opening, and the upper part of the lower magnetic steel 43 is sleeved in the lower mounting groove.

In the use, through such setting, can play spacing effect to last magnet steel 42 and lower magnet steel 43, prevent that upper magnet steel 42 and lower magnet steel 43 from taking place to rock the back influence measuring result in the use.

In the ninth embodiment, as shown in fig. 2, 6 and 10, a first insulating sleeve 57 is fixedly installed on the inner side of the upper end of the upper connecting rod 47, a connecting terminal 58 is fixedly installed on the inner side of the first insulating sleeve 57, the lower end of the connecting terminal 58 is fixedly connected with the upper end of the first connecting cable 45, and the upper end of the connecting terminal 58 is in contact with the joint assembly.

Through such an arrangement, a reliable connection of the first connecting cable 45 and the connecting terminal 58 can be achieved while improving the insulation performance at the connection of the first connecting cable 45 and the connecting terminal 58 during use. The well-known corning RTV3140 glue can be poured outside the junction of the connecting terminal 58 and the first connecting cable 45 according to the requirement, so as to further improve the insulation performance.

As an optimization of the above embodiment, as shown in fig. 1,4 and 5, the connector assembly comprises a fishing head 77, a middle connector 59, a second insulating sleeve 60, a pin 61, a jack seat 62 and a contact 63, wherein the outer side of the lower end of the middle connector 59 is fixedly and hermetically arranged on the inner side of the upper end of the outer tube 41, the upper end of the middle connector 59 is fixedly and hermetically arranged with the lower end of the hollow fishing head 77, the pin 61 is fixedly arranged on the inner side of the upper part of the middle connector 59, the second insulating sleeve 60 is fixedly arranged on the inner side of the lower part of the middle connector 59 corresponding to the position below the pin 61, the jack seat 62 is arranged on the inner side of the upper part of the second insulating sleeve 60, the inner side of the upper end of the jack seat 62 is tightly sleeved with the outer side of the lower end of the pin 61, the contact 63 is arranged on the inner side of the lower end of the jack seat 62, and a sixth elastic reset piece 64 which can enable the lower end of the contact 63 to be abutted against the upper end of the connecting terminal 58 is arranged between the lower end of the jack seat 62 and the contact 63.

According to the requirement, the sixth elastic resetting piece 64 is a prior art, such as a compression spring, the lower end face of the contact 63 is in a spherical crown shape, the second insulating sleeve 60 comprises a lower insulating sleeve and a large insulating sleeve sleeved together from top to bottom, the inner side of the lower part of the middle joint 59 is provided with an elastic retainer ring, the upper end of the elastic retainer ring is mutually contacted with the lower end of the large insulating sleeve, the inner side of the lower end of the large insulating sleeve is fixedly sleeved on an inner annular table outside the contact 63, thus the contact 63 and the second insulating sleeve 60 can be prevented from being mutually separated, the inner side of the upper end of the jack seat 62 and the outer side of the lower end of the contact pin 61 can be welded to strengthen the connection strength, through the arrangement, reliable connection between the contact 63 and the wiring terminal 58 can be realized, the uploading of a signal of a detection assembly is facilitated, the insulating performance can be improved, and the failure rate is reduced.

Example eleven: as an optimization of the above embodiment, as shown in fig. 1,4 and 5, the joint assembly further includes a gland cover 65, a sealing socket 66, a third connecting cable 67, a fourth connecting cable 68, a locking mechanism and a centralizing spring piece 69, an outer ring groove is arranged on the outer side of the upper portion of the middle joint 59, a half-set connecting sleeve 70 is sleeved in the outer ring groove, the outer side of the upper portion of the connecting sleeve 70 is fixedly mounted with the inner side of the lower end of a salvaging head 77, the gland cover 65 is fixedly mounted on the inner side of the upper portion of the middle joint 59, the sealing socket 66 is sleeved in the inner side of the lower portion of the gland cover 65 and the outer side of the upper portion of the inserting needle 61, a wire sleeve 71 is sleeved on the inner side of the middle portion of the salvaging head 77, the lower end of the wire sleeve 71 is connected with the sealing socket 66 through the third connecting cable 67, a cable sleeve 72 is fixedly mounted on the upper end of the wire sleeve 71, the upper end of the fourth connecting cable 68 is positioned above the salvaging head 77 after passing through the salvaging head 77, the inner side of the upper part of the salvage head 77 is provided with a locking mechanism capable of fixing the fourth connecting cable 68, the outer side of the salvage head 77 is provided with an upper centralizing groove and a lower centralizing groove at intervals up and down, the outer side of the upper part of the salvage head 77 corresponding to the upper centralizing groove is sleeved with an upper sliding sleeve 73, the inner side of the upper sliding sleeve 73 is fixedly provided with a plurality of upper sliding blocks 74 capable of moving up and down in the upper centralizing groove at intervals along the circumference, an upper telescopic groove with a downward opening is formed between the outer side of the lower part of each upper sliding block 74 and the inner side of the upper sliding sleeve 73, the outer side of the lower part of the salvage head 77 corresponding to the lower centralizing groove is sleeved with a lower sliding sleeve 75, the inner side of the lower sliding sleeve 75 corresponding to the position of each upper sliding block 74 is fixedly provided with a lower sliding block 76 capable of moving up and down in the lower centralizing groove, a lower telescopic groove with an upward opening is formed between the outer side of the upper part of each lower sliding block 76 and the inner side of the lower sliding sleeve 75, the centralizing spring plates 69 are inserted into the upper telescopic grooves, the lower ends of the centralizing spring plates 69 are inserted into the lower telescopic grooves at corresponding positions, and the middle parts of the centralizing spring plates 69 are outwards arched.

According to the demand, the middle joint 59 upper end is fixed with the stopper, the inboard spacing groove that is equipped with stopper assorted in the lower part of the fishing head 77, the stopper is installed in the spacing inslot, connect like this can prevent that middle joint 59 and the relative rotation of fishing head 77, distance between middle joint 59 upper end and the locking mechanism lower extreme can also be guaranteed, the adapter sleeve 70 that half sets up is together through the fix with screw, the outside of adapter sleeve 70 upper portion and the inboard spiro union of fishing head 77 lower part are together, the outside of fishing head 77 lower part is equipped with the injecting glue hole of inside and outside intercommunication, the sealed spiro union in injecting glue hole has injecting glue screw, be convenient for like this fill grease in the fishing head 77, improve the insulating properties of third connecting cable 67 and fourth connecting cable 68, go up the righting groove and the setting of righting groove down along the circumference interval, the quantity in the righting groove is four in this embodiment.

In the use, through setting up the adapter sleeve 70 of halving, be convenient for the dismouting between middle joint 59 and the salvage head 77, through setting up junction box 71 and cable jacket 72, be convenient for be connected between fourth connecting cable 68 and the third connecting cable 67, still be convenient for dismantle with middle joint 59, through setting up centering groove and centering groove down, centering shell fragment 69 middle part can promote the slider 74 and reciprocate in the last centering groove of corresponding position when radial shrink, or/and promote the slider 76 and reciprocate in the lower centering groove of corresponding position, the setting in last centering groove and lower centering groove, can avoid centering shell fragment 69 middle part and take place the torsion phenomenon when radial flexible, the fault rate has been reduced, through setting up sliding sleeve 73 and lower sliding sleeve 75, the dismouting between slider 74 and centering shell fragment 69 upper end and lower slider 76 and the centering shell fragment 69 lower extreme of being convenient for.

Embodiment twelve: as the optimization of the embodiment, as shown in the attached figure 1, the locking mechanism comprises a first taper sleeve 78, a second taper sleeve 79, a third taper sleeve 80, a locking sleeve 81 and a pressing sleeve 82, wherein the inner side of the upper part of the fishing head 77 is fixedly provided with a thread sleeve 83, the outer side of the lower end of the thread sleeve 83 and the inner side of the upper end of the first taper sleeve 78 are fixedly arranged together, a plurality of anti-rotation grooves are uniformly distributed on the outer side of the middle part of the first taper sleeve 78 along the circumference at intervals, anti-rotation screw holes which are communicated with each other are arranged on the outer side of the upper part of the fishing head 77 corresponding to the positions of each anti-rotation groove, anti-rotation screws 84 with the end parts positioned in the anti-rotation grooves corresponding to the positions are screwed in each anti-rotation screw hole, the inner side of the lower part of the first taper sleeve 78 is a conical surface with the upper part smaller than the lower part, the second taper sleeve 79 is sleeved on the inner side of the lower part of the first taper sleeve 78, the outer side and the inner side of the second taper sleeve 79 are both conical surfaces matched with the inner side of the first taper sleeve 78, the third taper sleeve 80 is sleeved on the inner side of the second taper sleeve 79, the outer side of the third taper sleeve 80 is conical surfaces matched with the inner side of the second taper sleeve 79, fixing pieces 85 with the upper ends fixed with the corresponding positions of the outer side of the fourth connecting cable 68 are arranged between the outer side of the second taper sleeve 79 and the inner side of the first taper sleeve 78 and between the inner side of the second taper sleeve 79 and the outer side of the third taper sleeve 80, a locking sleeve 81 is fixedly arranged on the outer side of the lower end of the first taper sleeve 78, and a pressing sleeve 82 with the upper ends propped against the lower end of the third taper sleeve 80 is arranged on the inner side of the lower part of the locking sleeve 81.

The fixing member 85 is an insulating layer and a protective layer outside the fourth connecting cable 68 as required. In the use, through rotating lock sleeve 81, lock sleeve 81 makes and compresses tightly cover 82 upwards to make first taper sleeve 78, second taper sleeve 79 and third taper sleeve 80 be close to each other and press from both sides tight mounting 85, can reliably fix fourth connecting cable 68 like this, through setting up anti-rotation screw 84, can prevent that fourth connecting cable 68 from rotating for salvaging head 77 in the use, avoid fourth connecting cable 68 to be twisted off, the area of contact of first taper sleeve 78, second taper sleeve 79 and third taper sleeve 80 can increase and mounting 85, thereby guarantee fourth connecting cable 68 and salvaging head 77 fixed firm.

Thirteenth embodiment As an optimization of the above embodiment, as shown in fig. 1 and 4, a fifth connecting cable 86 is fixedly connected between the lower end of the locking sleeve 81 and the upper end of the middle joint 59. By such arrangement, the safety performance of the lock sleeve 81 in use can be improved.

Fourteen embodiments as optimization of the above embodiments, as shown in fig. 1 and 5, an insulating layer 87 is arranged between the outer side of the upper part of the third connecting cable 67 and the outer side of the lower part of the fourth connecting cable 68, a wear-resistant base 88 is arranged on the inner side of the middle part of the righting spring piece 69, a U-shaped wear-resistant block 89 with an inward opening cross section is fixedly arranged on the outer side of the wear-resistant base 88, a fixing hole is formed on the inner side of the wear-resistant block 89 and the outer side of the wear-resistant base 88, and the outer side of the middle part of the righting spring piece 69 is fixedly arranged in the fixing hole.

The insulating layer 87 is a known technique, such as a high-pressure self-adhesive tape wound on the outside of the third connecting cable 67 and the outside of the fourth connecting cable 68, as required. In the use, through setting up wear-resisting base 88 and wear-resisting piece 89, be convenient for with right the dismouting of shell fragment 69, wear-resisting piece 89's setting can also improve wear resistance, prolongs the life who rights shell fragment 69.

The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.

Claims

1. The recyclable pumping sealing device is characterized by comprising a joint assembly, a detection assembly and a setting assembly which are sequentially arranged together from top to bottom;

2. The recoverable pumping sealing device according to claim 1, wherein the setting assembly comprises a ball seat, a hinge barrel, a thrust barrel, a valve core mechanism, a central shaft, a setting ball, a centralizing tailstock and a leather cup, the upper end of the ball seat and the lower end of the detecting assembly are fixedly installed together in a sealing way, a hinge groove with a downward opening is arranged on the inner side of the lower part of the ball seat, the hinge ball which is fixedly installed in the hinge groove is fixedly installed on the upper end of the hinge barrel, a plurality of liquid inlets which are communicated with each other inside and outside are uniformly distributed on the outer side of the upper part of the hinge barrel corresponding to the upper position of the thrust barrel along the circumference at intervals, a through-flow channel which penetrates up and down is arranged on the inner side of the thrust barrel, the valve core mechanism which can open and close the through-flow channel is arranged on the inner side of the lower part of the through-flow channel, a hollow central shaft is sleeved on the inner side of the upper part of the central shaft and a second elastic reset piece is arranged between the upper part of the central shaft and the lower part of the thrust barrel, the lower end of the central shaft is fixedly arranged with the upper part of the setting ball, a plurality of liquid outlet holes which are communicated with each other inside and outside are uniformly distributed on the outer side of the lower part of the central shaft corresponding to the upper part of the setting ball along the circumference at intervals, a centralizing tailstock is sleeved on the outer side of the lower part of the central shaft corresponding to the upper part of the liquid outlet holes, the upper end of the centralizing tailstock is arranged with the lower end of the thrust cylinder, a guide ring table is fixed on the outer side of the lower part of the central shaft corresponding to the lower part of the thrust cylinder, a conical outer guide surface with a big end down is arranged on the outer side of the lower part of the guide ring table, a guide ring groove is arranged on the outer side of the centralizing tailstock corresponding to the position of the guide ring table, a plurality of radially through inner guide mounting holes are uniformly distributed on the middle part of the guide ring groove along the circumference at intervals, a retaining ring is fixedly mounted in the guide ring groove, a radially through outer guide mounting hole is arranged on the outer side of the retaining ring corresponding to the position of each inner guide mounting hole, a wedge block is slidingly mounted in each inner guide mounting hole, the guide posts penetrating through the outer guide mounting holes at the corresponding positions are fixed on the outer side of each wedge block, the inner side of the upper part of each wedge block is a conical surface matched with the outer guide surface, a first elastic reset piece which can enable the inner side of each wedge block to prop against the outer side of each guide ring table is arranged between the outer side of each wedge block and the inner side of each buckle ring, a lower gland is mounted on the outer side of each buckle ring corresponding to the upper side of each guide post, an upper gland is mounted on the outer side of the upper part of each thrust cylinder corresponding to the lower position of each hinged cylinder, a plurality of annular separation plates are arranged between the upper gland and the lower gland at intervals, and leather cups are mounted on the upper side and the lower side of each separation plate.

3. The recoverable pumping sealing device according to claim 2, wherein the flow passage comprises a first straight hole, a second straight hole, a third straight hole, a fourth straight hole and a fifth straight hole which are sequentially communicated from top to bottom, the inner diameters of the first straight hole, the second straight hole and the third straight hole are sequentially reduced, the inner diameters of the third straight hole, the fourth straight hole and the fifth straight hole are sequentially increased, a plurality of open inward slots are uniformly distributed on a step surface between the second straight hole and the third straight hole at intervals, the valve core mechanism comprises a valve cover, a valve rod and a third elastic reset piece, the outer side of the lower part of the valve cover is fixedly arranged in the first straight hole, the center of the upper end of the valve cover is provided with a vertically through switch hole, the inner side of the valve cover is sleeved with a T-shaped valve rod with a big top and a small bottom, the outer side of the lower part of the valve rod is sleeved in the third straight hole, a third elastic reset piece capable of enabling the upper end of the valve rod to be in sealing contact with the inner side of the valve cover is arranged between a step surface between the second straight hole and the outer side of the upper part of the valve rod, a first step surface of the upper end of the valve rod is arranged between the first step surface of the upper end of the guide ring and the upper end of the valve seat, the upper end of the valve seat is fixedly arranged between the first step surface of the upper end of the valve seat and the upper end of the valve seat is arranged on the upper end of the upper surface of the upper limit plate of the first straight seat;

Or/and, a plurality of radially penetrating check holes are uniformly distributed on the outer side of the lower part of the centralizing tailstock corresponding to the position below the retaining ring along the circumference at intervals, a compression screw is screwed in each check hole, a check pin is sleeved in the check hole corresponding to the position between the compression screw and the outer side of the central shaft, a fourth elastic reset piece which enables the end part of the check pin to prop against the outer side of the central shaft is arranged between the compression screw and the check pin, and a check ring groove is arranged on the outer side of the central shaft corresponding to the position between the check hole and the lower end of the centralizing tailstock;

or/and, a first filter screen screw is detachably and fixedly arranged in the liquid inlet hole, a fixed groove with an upward opening is formed in the upper part of the setting ball, the outer side of the lower part of the central shaft is fixedly arranged in the fixed groove, a second step surface is arranged on the inner side of the lower part of the central shaft corresponding to the position above the liquid outlet hole, a second filter screen screw with the upper end in contact with the second step surface is fixedly arranged on the inner side of the lower part of the central shaft, and a filter channel communicated with the inner side of the central shaft is arranged on the outer side of the lower part of the second filter screen screw corresponding to each liquid outlet hole;

or/and, the hinge groove comprises a first hinge hole, a second hinge hole and a third hinge hole which are sequentially communicated from top to bottom, the inner wall of the second hinge hole is spherical, the hinge ball is hinged in the second hinge hole, a lock nut is fixedly arranged on the inner side of the lower part of the third hinge hole, the lock nut is sleeved on the outer side of the upper part of the Y-shaped hinge cylinder with the inverted section, an annular gasket is sleeved on the inner side of the lower part of the first hinge hole, and a fifth elastic reset piece which enables the inner side of the lower end of the annular gasket to prop against the upper part of the hinge ball is arranged on the inner side of the upper part of the first hinge hole.

4. The recyclable pumping sealing device according to claim 1, 2 or 3, wherein the detecting component comprises an outer tube, an upper magnetic steel, a lower magnetic steel, a coil assembly, a first connecting cable and a second connecting cable, the outer side of the upper end of the ball seat and the inner side of the lower end of the outer tube are fixedly installed together in a sealing manner, the upper end of the outer tube and the lower end of the joint component are fixedly installed together in a sealing manner, the hollow upper connecting rod is sleeved on the inner side of the upper end of the outer tube, an upper buffer sleeve is installed between the upper end of the upper connecting rod and the lower end of the joint component, an upper fixed ring table is fixedly installed on the outer side of the upper connecting rod, a coil sleeve is fixedly installed on the outer side of the lower portion of the upper connecting rod, a coil ring groove is arranged on the outer side of the coil sleeve, a threading hole communicated with the inner side of the coil ring groove is formed in the upper portion of the coil ring groove, an annular upper magnetic steel is installed in the coil ring groove, a lower connecting rod is fixedly installed on the inner side of the lower connecting rod corresponding to the outer side of the upper end of the coil ring seat, a lower buffer sleeve is arranged between the lower end of the lower connecting rod and the lower end of the joint component, a coil ring is fixedly installed on the inner side of the coil ring seat, a coil ring groove is fixedly installed on the upper connecting hole is formed between the upper end of the coil ring groove and the upper end of the coil assembly, and the upper end of the coil assembly is fixedly connected with the upper connecting rod, and the upper end of the coil assembly is fixedly connected with the upper end of the upper connecting rod through the upper end of the upper connecting rod and the upper end of the coil assembly.

5. The recoverable pumping sealing device according to claim 4, wherein an upper mounting groove with an upward opening is formed in the upper end of the coil sleeve, the lower part of the upper magnetic steel is sleeved in the upper mounting groove, a plurality of mounting clamping grooves which are vertically penetrated are formed in the outer side of the upper fixing ring table at intervals along the circumference, an upper spring piece with the inner side of the lower end propped against the outer side of the upper part of the upper magnetic steel is fixedly arranged in each clamping groove, the middle part of each upper spring piece is outwards bulged and propped against the inner side of the outer tube, a lower mounting groove with a downward opening is formed in the lower end of the coil sleeve, and the upper part of the lower magnetic steel is sleeved in the lower mounting groove;

Or/and, the inner side of the upper end of the upper connecting rod is fixedly provided with a first insulating sleeve, the inner side of the first insulating sleeve is fixedly provided with a wiring terminal, the lower end of the wiring terminal is fixedly connected with the upper end of the first connecting cable, and the upper end of the wiring terminal is in contact with the joint assembly.

6. The recoverable pumping seal device according to claim 5, wherein the connector assembly comprises a salvaging head, a middle connector, a second insulating sleeve, a pin, a socket and a contact, the outer side of the lower end of the middle connector is fixedly mounted on the inner side of the upper end of the outer tube in a sealing manner, the upper end of the middle connector is fixedly mounted with the lower end of the salvaging head of the hollow structure, the pin is fixedly mounted on the inner side of the upper part of the middle connector, the second insulating sleeve is fixedly mounted on the inner side of the lower part of the middle connector corresponding to the position below the pin, the socket is mounted on the inner side of the upper part of the second insulating sleeve, the inner side of the upper end of the socket is tightly sleeved with the outer side of the lower end of the pin, the contact is mounted on the inner side of the lower part of the second insulating sleeve, and a sixth elastic reset piece capable of enabling the lower end of the contact to be abutted against the upper end of the connecting terminal is arranged between the lower end of the socket and the contact.

7. The recoverable pumping sealing device of claim 6, wherein the joint assembly further comprises a gland cover, a sealing socket, a third connecting cable, a fourth connecting cable, a locking mechanism and a centralizing spring plate, wherein the outer side of the upper part of the middle joint is provided with an outer annular groove, a half-and-half connecting sleeve is sleeved in the outer annular groove, the outer side of the upper part of the connecting sleeve and the inner side of the lower end of the salvaging head are fixedly arranged together, a gland is fixedly arranged on the inner side of the upper part of the middle joint, the gland cover is sleeved with the sealing socket of which the inner side of the lower part is tightly sleeved with the outer side of the upper part of the inserting needle, the inner side of the middle part of the salvaging head is sleeved with a wiring sleeve, the lower end of the wiring sleeve is connected with the sealing socket through the third connecting cable, the upper end of the wiring sleeve is fixedly provided with the fourth connecting cable, the upper end of the fourth connecting cable is positioned above the salvaging head after passing through the salvaging head, the inner side of the upper part of the salvage head is provided with a locking mechanism capable of fixing a fourth connecting cable, the outer side of the salvage head is provided with an upper centralizing groove and a lower centralizing groove at intervals, the outer side of the upper part of the salvage head corresponding to the upper centralizing groove is sleeved with an upper sliding sleeve, the inner side of the upper sliding sleeve is fixedly provided with a plurality of upper sliding blocks capable of moving up and down in the upper centralizing groove at intervals along the circumference, an upper telescopic groove with a downward opening is formed between the outer side of the lower part of each upper sliding block and the inner side of the upper sliding sleeve, the outer side of the lower part of the salvage head corresponding to the lower centralizing groove is sleeved with a lower sliding sleeve, the inner side of the lower sliding sleeve corresponding to the position of each upper sliding block is fixedly provided with a lower sliding block capable of moving up and down in the lower centralizing groove, an upward opening lower telescopic groove is formed between the outer side of the upper part of each lower sliding sleeve and the inner side of each lower sliding sleeve, a centralizing elastic piece is inserted in each upper telescopic groove, the lower end of each centralizing elastic piece is inserted in the lower telescopic groove at the corresponding position, the middle part of each centralizing spring piece is outwards arched.

8. The recoverable pumping sealing device of claim 7, wherein the locking mechanism comprises a first taper sleeve, a second taper sleeve, a third taper sleeve, a locking sleeve and a pressing sleeve, wherein the inner side of the upper part of the fishing head is fixedly provided with a thread sleeve, the outer side of the lower end of the thread sleeve and the inner side of the upper end of the first taper sleeve are fixedly arranged together, a plurality of anti-rotation grooves are uniformly distributed on the outer side of the middle part of the first taper sleeve along the circumference at intervals, anti-rotation screw holes which are communicated with each other are formed on the outer side of the upper part of the fishing head corresponding to the position of each anti-rotation groove, anti-rotation screws with the end parts positioned in the anti-rotation grooves corresponding to the positions are in each anti-rotation screw hole in a screwed manner, the inner side of the lower part of the first taper sleeve is a conical surface with the upper part being small and the lower part being large, the second taper sleeve is sleeved on the inner side of the lower portion of the first taper sleeve, the outer side and the inner side of the second taper sleeve are both conical surfaces matched with the inner side of the first taper sleeve, the third taper sleeve is sleeved on the inner side of the second taper sleeve, the outer side of the third taper sleeve is conical surfaces matched with the inner side of the second taper sleeve, fixing pieces with the upper ends fixed with corresponding positions of the outer sides of the fourth connecting cables are arranged between the outer side of the second taper sleeve and the inner side of the first taper sleeve and between the inner side of the second taper sleeve and the outer side of the third taper sleeve, a locking sleeve is fixedly arranged on the outer side of the lower end of the first taper sleeve, and a pressing sleeve with the upper ends propped against the lower end of the third taper sleeve is arranged on the inner side of the lower portion of the locking sleeve.

9. The recyclable pumping sealing device as defined in claim 8, wherein a fifth connecting cable is fixedly connected between the lower end of the locking sleeve and the upper end of the middle joint.

10. The recoverable pumping sealing device according to claim 7,8 or 9, wherein an insulating layer is arranged between the outer side of the upper part of the third connecting cable and the outer side of the lower part of the fourth connecting cable, a wear-resistant base is arranged on the inner side of the middle part of the centralizing spring piece, a U-shaped wear-resistant block with an inward opening cross section is fixedly arranged on the outer side of the wear-resistant base, a fixing hole is formed on the inner side of the wear-resistant block and the outer side of the wear-resistant base, and the outer side of the middle part of the centralizing spring piece is fixedly arranged in the fixing hole.