CN110965941B - Geosteering drilling test tool and use method - Google Patents
Geosteering drilling test tool and use method Download PDFInfo
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- CN110965941B CN110965941B CN201911348373.7A CN201911348373A CN110965941B CN 110965941 B CN110965941 B CN 110965941B CN 201911348373 A CN201911348373 A CN 201911348373A CN 110965941 B CN110965941 B CN 110965941B
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- 238000005553 drilling Methods 0.000 title claims abstract description 88
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000004088 simulation Methods 0.000 claims description 26
- 230000001012 protector Effects 0.000 claims description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000013500 data storage Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000001276 controlling effect Effects 0.000 description 1
- 238000013479 data entry Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
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- 239000011229 interlayer Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
- E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a geosteering drilling test tool and a using method thereof, which mainly comprises a wire guard, a centralizing ring, an upper centralizing device, a float collar, a pulse generator, a spring assembly, a high-energy battery string, a gamma meter, a lower centralizing device, a guide motor, a guide friction block, a transmission shaft and a ground control system, wherein when in geological exploration operation, drilling fluid is pumped into a well, the ground control system is started, and the data of a sensor, a decoding unit, a hydraulic control unit and the like are recorded by a PC, and the azimuth angle of a near bit 3 feet away from the bit is remotely sensed through whole data input and mud pulse; the multi-group user-defined repeated programming mode can be provided, the part structure is few, the tool complexity is reduced, the automatic hydraulic and electric regulation mode is realized, the maintenance is low, the reliability is high, the data storage is timely, gamma rays and vibration data can be obtained about 10 feet away from the drill bit, the geological exploration cost can be saved, and the drilling test efficiency is improved.
Description
Technical Field
The invention relates to the technical field of drilling and testing tools, in particular to a geosteering drilling testing tool and a using method thereof.
Background
The research and application of the geosteering well drilling technology can lead petroleum enterprises to not only take reserves and output, but also improve the well drilling time rate and reduce the exploration and development cost, has wide development prospect and high practical value, and brings new hope for domestic petroleum enterprises with low yield, low pressure, low permeability thin oil layer and more difficult-to-extract reservoirs.
The development and development of the geosteering drilling technology breaks the domestic drilling engineering and technical problems. The oil field of the oil gas resource whole package of China is smaller and smaller, the grade of the residual oil resource is worse, the difficulty of exploration and development technology is increased step by step, and greater pressure is brought to petroleum geology, engineering and process exploration developers. The old oil fields such as Yumen, daqing, shengli, zhongyuan, sichuan, change, xinjiang and the like have more and more interlayers, thin oil layers, low-pressure low-permeability low-yield reservoirs, difficult-yield reservoirs and heterogeneous reservoirs, and the drilling construction difficulty is high, the speed is low, the period is long, the cost is high and the single well yield is low, so that the method has become the bottleneck for restricting the exploration and the development of the old oil fields.
The geosteering task is responsible for the accurate drilling into hydrocarbon reservoirs of interest, which has three major functions of measurement, transmission and steering. Specifically, geosteering is a drilling technique that uses measurement-while-drilling data and formation evaluation-while-drilling data to control the trajectory of a borehole, which uses actual geological features downhole to determine and control the trajectory of the borehole, rather than drilling in accordance with a pre-designed trajectory of the borehole. Geosteering technology is mainly applied to horizontal well drilling, and is a great development of horizontal well drilling technology, and the horizontal well drilling technology is marked to rise to a higher level. Downhole information includes two categories: one class is geological parameters including resistivity, natural gamma, lithology density, acoustic waves, formation dip, etc., which are referred to as Logging While Drilling (LWD) and Formation Evaluation While Drilling (FEWD), respectively; the other is engineering parameters, and the engineering parameters are divided into two groups, one group is the spatial position parameters of the well track, including the well inclination angle, the azimuth angle, the tool face angle and the like, measurement while drilling of the group is called MWD, the other group is drilling parameters, including the bottom hole weight, the bottom hole torque, the bottom hole pressure and the like, and the group is called PWT. Essential in geosteering drilling processes are borehole trajectory spatial location parameters Measurement While Drilling (MWD) and geologic parameters measurement while drilling (LWD), which are tool bases.
In the straight well section, the drilling speed of the drill bit is lower and only 147rpm, and is more than 200rpm conventionally, if the mechanical drilling speed is required to be improved, the drilling pressure is only increased, if the drilling pressure is too high, the conventional drilling can lead to uncontrollable borehole track, and the rotation guide is correct at any time, so that the drilling pressure is not high, and the drilling pressure can be increased according to the introduction of the rotation guide company. In the deflecting section, the rotary guide keeps the weight of the drill bit of 10 tons, the mechanical drilling speed is still 15 min/single, which is much faster than that of the conventional drilling, and the mechanical rotation speed is slower because the rotary table does not rotate during the conventional drilling, the rotation speed of the drill bit is lower, and the weight of the drill bit is also smaller; while the rotary table still rotates during rotary steerable drilling, the drilling pressure is still 10 tons, so the mechanical drilling speed is almost equal to that of a straight well. Thus, in directional drilling, there are problems in that it is difficult to drill to the correct azimuth and to maintain a high drilling rate due to the reliance on a conventional mud motor and measurement while drilling system.
Disclosure of Invention
The invention aims to provide a device which can measure various well bottom information in real time on the premise of feeding back real-time geological data and reservoir data at a drill bit, so that an operator can quickly make a decision of adjusting a drilling track, guide the drill bit to horizontally advance in an oil layer, maintain correct guiding and higher drilling speed, have fewer parts, are convenient to assemble and process, and are particularly suitable for guiding drilling work of a horizontal well and a deep well geological exploration well.
Embodiments of the present invention are implemented as follows:
The utility model provides a geosteering well test instrument and application method, geosteering well test instrument includes the wire protector, right the ring, go up the centralizer, the float collar, the pulse generator, the spring assembly, the high-energy battery cluster, the gamma appearance, lower centralizer, the guiding motor, guiding friction block and transmission shaft, wire protector lower extreme and right ring upper end threaded connection, right the ring lower extreme and go up the centralizer upper end threaded connection, go up centralizer lower extreme and float collar upper end threaded connection, float collar lower extreme and pulse generator upper end threaded connection, the pulse generator lower extreme is connected in the spring assembly upper end, the spring assembly lower extreme is connected in the high-energy battery cluster upper end, the high-energy battery cluster is connected in the gamma appearance upper end, the gamma appearance suit is in the lower centralizer casing, lower centralizer casing and guiding motor's shell upper end threaded connection, guiding motor's shell lower extreme and rotating sleeve upper end threaded connection, guiding friction block sets up the upper end at the rotating sleeve periphery outside along circumference, the motor lower extreme and the transmission shaft threaded connection that sets up in the guiding motor.
In a preferred embodiment of the present invention, the guiding friction block is provided with a plurality of guiding friction blocks, and the guiding friction blocks are uniformly distributed along the circumferential direction and are connected outside the rotating sleeve, and cemented carbide teeth are embedded on the surface of the guiding friction block so as to improve the surface wear resistance.
In a preferred embodiment of the present invention, the guiding friction block includes a measuring packet, a rotating sleeve, a hydraulic piston and a motor rotor, wherein the measuring packet is embedded in an outer ring of the rotating sleeve, a hydraulic piston housing is welded on the outer ring of the rotating sleeve, and one end of the motor rotor of the inner ring is sleeved in a housing of the guiding motor.
In a preferred embodiment of the present invention, when the geosteering drilling test tool is used, a ground control simulation system is used, the ground control simulation system includes a drill bit, the drill bit is connected with the bottom end of the transmission shaft, the drill bit is provided with guiding drilling power by a guiding motor, and the guiding motor drives the transmission shaft to rotate so as to drive the drill bit to drill in a guiding way.
In the preferred embodiment of the invention, the pulse generator can feed back the underground information to the ground control simulation system, and the ground control simulation system adjusts the drilling pressure and the displacement after receiving the information so as to realize the guiding drilling of the guiding motor.
In a preferred embodiment of the present invention, the above ground control simulation system further includes a PLC machine, a riser manifold, a sensor, a manual valve, a hydraulic line, a mud line, a decoding unit, a terminal, a hydraulic control unit, and a power source, wherein the PLC machine, the terminal, and the sensor are respectively connected to the decoding unit, the power source is connected to the hydraulic control unit, one end of the hydraulic control unit is connected to the decoding unit, and the other end is connected to the hydraulic valve through the hydraulic line, the sensor is connected to the riser manifold, the riser manifold is sequentially connected to the manual valve and the hydraulic valve, the hydraulic valve is connected to the mud line, the mud line is connected to a geosteering drilling test tool, and the ground control simulation system adjusts the drill guide and positions by collecting information of the geosteering drilling test tool.
In the preferred embodiment of the invention, the gamma instrument is 8-12 inches away from the drill bit, and the precision of the sensor meets the following requirements: the error of the testing azimuth angle is within +/-0.3 degrees, the error of the well inclination angle is within +/-0.1 degrees, the error of the deviation angle is within +/-0.1 degrees, the using temperature range of the gamma meter is 0-150 ℃, the gamma meter is applicable to the borehole size of 81/2 '-91/2', and the sensor position is less than or equal to 3 feet away from the drill bit.
In a preferred embodiment of the present invention, the electrical energy of the gamma meter and the sensor is provided by a high-energy battery string, which is connected in series by a plurality of lithium batteries.
In a preferred embodiment of the present invention, the above-mentioned method of use comprises the steps of: s1, assembling the components of the geosteering well drilling test tool and the ground control simulation system according to a connection relation; s2, starting a motor, starting drilling by a drill bit, recording data while drilling, and recording data of a sensor, a decoding unit, a terminal and a hydraulic control unit by a PLC (programmable logic controller); s3, according to the data in the S2 and the feedback data of the pulse generator, if deviation occurs between the drill bit guiding and the original design, the flow parameters and the pressure parameters are regulated through a manual control valve, a hydraulic control valve and a hydraulic control unit; and S4, alarming if the data parameters are beyond the normal range.
In the preferred embodiment of the present invention, the ground control simulation system further includes an alarm lamp and an alarm display screen, and in step S4, the alarm is performed by lighting the alarm lamp and displaying data beyond a normal range on the alarm display screen.
The beneficial effects of the invention are as follows:
The invention is connected with a drill string through a wire guard, a geosteering drilling test tool is adjusted to the center position of a borehole through a centralizing ring, an upper centralizing device and a lower centralizing device, unidirectional diversion is performed through a floating hoop, signals are generated through a pulse generator, buffering is provided through a spring assembly, electric energy is provided through a high-energy battery string, underground data is tested through a gamma meter, positioning and guiding are performed through a guiding friction block, drill bit driving force is provided through a guiding motor and a transmission shaft, underground data is monitored in real time through a ground control simulation system, and control and adjustment of each valve are performed; the tool can take real-time measurement of various well bottom information as a precondition, and can feed back real-time geological data and reservoir data at the drill bit, so that operators can quickly make a decision of adjusting drilling tracks, guide the drill bit to horizontally advance in an oil layer, maintain correct guiding and higher drilling speed, and have few parts, thereby being convenient for assembly and processing, and being particularly suitable for guiding drilling work of horizontal wells and deep well geological exploration wells.
The invention also has the following advantages:
1. The rotary guiding device can transmit the optimal signal only by setting the proper rotating disk and motor rotating speed.
2. Rotational steering is significantly faster at the whipstock section than conventional steering in other drilling modes.
3. The service lives of the rotary guide battery and hydraulic oil are long, and the longest test can reach 170 hours.
4. The whole data entry and mud pulse telemetry measures the near bit azimuth at a distance from the bit 3 ".
5. Multiple sets of user-defined re-programmable patterns.
6. And in an automatic hydro-electric regulation mode, the maintenance is low, the reliability is high, and the data can be stored in time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is a block diagram of a geosteering drilling test tool.
FIG. 2 is a diagram of a pilot friction block configuration of a geosteering drilling test tool.
FIG. 3 is an overall control schematic of a geosteering drilling test tool.
Icon: 1-wire protector, 2-centering ring, 3-upper centralizer, 4-float collar, 5-pulse generator, 6-spring assembly, 7-high energy battery string, 8-gamma instrument, 9-lower centralizer, 10-guiding friction block, 11-guiding motor, 12-transmission shaft, 20-PLC machine, 21-riser manifold, 22-sensor, 23-manual valve, 24-hydraulic valve, 25-hydraulic line, 26-mud line, 27-decoding unit, 28-terminal, 29-hydraulic control unit, 30-geosteering drilling test tool, 111-measurement package, 112-rotating sleeve, 113-hydraulic piston, 114-motor rotor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
First embodiment
Referring to fig. 1, the present embodiment provides a geosteering well test tool and a method for using the same, wherein the geosteering well test tool 30 includes, sequentially from top to bottom, a wire protector 1, a centering ring 2, an upper centering device 3, a float collar 4, a pulse generator 5, a spring assembly 6, a high-energy battery string 7, a gamma meter 8, a lower centering device 9, a steering motor 11, a steering friction block 10, and a transmission shaft 12, and when the tool is used, a ground control simulation system is combined, the ground control simulation system includes a drill bit, a PLC machine 20, a riser manifold 21, a sensor 22, a manual valve 23, a hydraulic valve 24, a hydraulic pipeline 25, a mud pipeline 26, a decoding unit 27, a terminal 28, a hydraulic control unit 29, and a power supply, the geosteering well test tool 30 has a simple structure, the least parts form the tool structure, the complexity is low, the processing and the assembly are convenient, the maintenance and the disassembly are convenient, when the geosteering well test tool 30 is used, the ground control simulation system is combined with the PLC machine 20 as a control center, and the PLC machine 20 is a control center which is a master, and the main realization of a "brain" of the control function: power supply to internal electronic components of the associated components; the manual control valve 23 and the hydraulic control valve 24; input and output monitoring of analog data; data communication between geosteering well test tool 30 and PLC machine 20.
The lower end of the wire protector 1 is respectively provided with threads and is fixed through threaded connection with the upper end of the centralizing ring 2, the lower end of the centralizing ring 2 is respectively provided with threads and is fixed through threaded connection with the upper end of the upper centralizing ring 3, the upper centralizing ring 3 is provided with a circle along the circumference of the centralizing ring 2, the lower end of the upper centralizing ring 3 is respectively provided with threads and is fixed through threaded connection with the upper end of the float collar 4, the lower end of the float collar 4 is respectively provided with threads and is fixed through threaded connection with the upper end of the pulse generator 5, the lower end of the pulse generator 5 is connected with the upper end of the spring component 6, the pulse generator 5 can feed down the underground information to a ground control simulation system, the ground control simulation system adjusts the drilling pressure and the displacement after receiving the information, realizes the guiding drilling of the guiding motor 11, the pulse generator 5 and the spring component 6 are respectively arranged in the shell of the tool, the spring component 6 is a spring which is an extension and compression spring component 6 along the extending direction of the tool, the spring component 6 is arranged to make the pulse generator 5 vibrate back and forth along the direction of the geosteering drilling test tool 30 so as to play a role of buffering, the lower end of the spring component 6 is connected to the upper end of the high-energy battery string 7, the high-energy battery string 7 is connected in series by a plurality of lithium batteries, the high-energy battery string 7 is connected to the upper end of the gamma instrument 8, the gamma instrument 8 is sleeved in the shell of the lower centralizer 9, the gamma instrument 8 is 10 inches away from the drill bit, the using temperature range of the gamma instrument 8 is 0-150 ℃, the gamma instrument is applicable to the borehole size 8 1/2″～9 1/2', the shell of the lower centralizer 9 and the upper end of the shell of the guiding motor 11 are respectively provided with threads and are fixed through threaded connection, the lower end of the shell of the guiding motor 11 and the upper end of the rotating sleeve 112 are respectively provided with threads and are fixed through threaded connection, the guiding friction block 10 is circumferentially arranged at the upper end outside the rotating sleeve 112, the lower end of a motor rotor 114 arranged in the guiding motor 11 is fixedly connected with the transmission shaft 12 through threads.
Referring to fig. 2, the guiding friction blocks 10 are provided with 4 pieces, the 4 pieces of guiding friction blocks 10 are identical in shape, uniformly distributed along the circumferential direction and connected outside the rotary sleeve 112, adjacent guiding friction blocks 10 are not separated, and hard alloy teeth are embedded on the surfaces of the guiding friction blocks 10 through internal connection, so that the surface wear resistance of the guiding friction blocks is improved. The guiding friction block 10 comprises a measuring bag 111, a rotating sleeve 112, a hydraulic piston 113 and a motor rotor 114, wherein the measuring bag 111 is embedded in the outer ring of the rotating sleeve 112, the outer shell of the hydraulic piston 113 is welded on the outer ring of the rotating sleeve 112, one end of an inner ring motor rotor 114 is sleeved in a shell of the guiding motor 11, the inner ring motor rotor 114 is a part for driving a drill bit to rotate, one end of the inner ring motor rotor 114 is positioned in the guiding motor 11, and the other end of the inner ring motor rotor is connected to the transmission shaft 12 through the guiding friction block 10; when the geosteering drilling test tool 30 is used, a drill bit is connected with the bottom end of the transmission shaft 12, the drill bit is provided with steering drilling power by the steering motor 11, and the steering motor 11 drives the transmission shaft 12 to rotate so as to drive the drill bit to steer drilling.
Referring to fig. 3, the ground control simulation system includes a drill bit, a PLC machine 20, a riser manifold 21, a sensor 22, a manual valve 23, a hydraulic valve 24, a hydraulic line 25, a mud line 26, a decoding unit 27, a terminal 28, a hydraulic control unit 29 and a power supply, the PLC machine 20 adopts a PLC104, which is an industrial control bus specially defined for embedded control, the PLC104 board is a small-sized structure, which adopts a stack connection, fully utilizes the space of the control system, the PLC machine 20, the terminal 28 and the sensor 22 are respectively connected with the decoding unit 27, the terminal 28 is an operation panel for operating and controlling each valve and each line, the power of the sensor 22 is provided by the high-energy battery string 7, the sensor 22 is in the prior art and is placed in the geosteering drilling test tool 30, and the precision of the sensor 22 satisfies: the error of the test azimuth angle is within +/-0.3 degrees, the error of the well inclination angle is within +/-0.1 degrees, the error of the deviation angle is within +/-0.1 degrees, the position of the sensor 22 is 3 feet away from the drill bit, transmission communication is carried out between the sensor 22 and the decoding unit 27 by utilizing electric signals, the power supply is connected with the hydraulic control unit 29 and provides power, the power supply of the embodiment adopts the specification of 480/220V, one end of the hydraulic control unit 29 is connected with the decoding unit 27 and the other end is connected with the hydraulic control valve 24 through the hydraulic pipeline 25, the sensor 22 is connected with the riser manifold 21, the riser manifold 21 is sequentially connected with the manual valve 23 and the hydraulic control valve 24, the hydraulic control valve 24 is connected with the mud pipeline 26, the mud pipeline 26 is connected with the geosteering drilling test tool 30, and the ground control simulation system is used for adjusting the drill bit to guide and positioning by collecting information of the geosteering drilling test tool; the ground control simulation system further comprises an alarm lamp, an alarm display screen, an electromagnetic valve driving module, an analog quantity module and a communication module, wherein the alarm lamp, the alarm display screen, the electromagnetic valve driving module, the analog quantity module and the communication module are respectively in the prior art, when detected data exceeds a normal value, the alarm lamp is turned on, the alarm display screen displays the data exceeding the normal range to alarm, the electromagnetic valve driving module is connected to the hydraulic control valve 24 so as to simulate the data through a current control switch, the analog quantity module calculates drilling tracks and parameters under all the data in advance through simulation software, and the communication module comprises a network card for wireless and wired data transmission.
The using method comprises the following steps: s1, assembling a geosteering well drilling test tool and a ground control simulation system according to a connection relation; s2, starting a motor, starting drilling by a drill bit, recording data while drilling, and recording data of a sensor, a decoding unit, a terminal and a hydraulic control unit by a PLC (programmable logic controller); s3, according to the data in the S2 and the feedback data of the pulse generator, if deviation occurs between the drill bit guiding and the original design, the flow parameters and the pressure parameters are regulated through a manual control valve, a hydraulic control valve and a hydraulic control unit; and S4, alarming if the data parameters are beyond the normal range.
In summary, the invention connects with the drill string through the wire guard, adjusts the geosteering drilling test tool at the center of the well hole through the centralizing ring, the upper centralizing device and the lower centralizing device, generates signal through the floating hoop unidirectional diversion, provides buffer through the spring component, provides electric energy through the high-energy battery string, tests the underground data through the gamma meter, positions and guides through the guiding friction block, provides the driving force of the drill bit through the guiding motor and the transmission shaft, monitors the underground data in real time through the ground control simulation system, and controls and adjusts each valve; the tool can take real-time measurement of various well bottom information as a precondition, and can feed back real-time geological data and reservoir data at the drill bit, so that operators can quickly make a decision of adjusting drilling tracks, guide the drill bit to horizontally advance in an oil layer, maintain correct guiding and higher drilling speed, and have few parts, thereby being convenient for assembly and processing, and being particularly suitable for guiding drilling work of horizontal wells and deep well geological exploration wells.
This description describes examples of embodiments of the invention and is not intended to illustrate and describe all possible forms of the invention. Those of ordinary skill in the art will recognize that the embodiments described herein are for the purpose of aiding the reader in understanding the principles of the present invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit thereof, and such modifications and combinations remain within the scope of the present disclosure.
Claims (4)
1. The using method of the geosteering drilling test tool is characterized in that the geosteering drilling test tool (30) comprises a wire protector (1), a centralizing ring (2), an upper centralizing device (3), a float collar (4), a pulse generator (5), a spring assembly (6), a high-energy battery string (7), a gamma instrument (8), a lower centralizing device (9), a guide motor (10), a guide friction block (11) and a transmission shaft (12), the lower end of the wire protector (1) is in threaded connection with the upper end of the centralizing ring (2), the lower end of the centralizing ring (2) is in threaded connection with the upper end of the upper centralizing device (3), the lower end of the upper centralizing device (3) is in threaded connection with the upper end of the float collar (4), the lower end of the float collar (4) is in threaded connection with the upper end of the pulse generator (5), the lower end of the pulse generator (5) is connected with the upper end of the spring assembly (6), the lower end of the spring assembly (6) is connected with the upper end of the high-energy battery string (7), the high-energy battery string (7) is connected with the upper end of the gamma instrument (8), the lower end of the gamma instrument (8) is sleeved with the upper end of the guide motor (9), the guide motor (10) is in threaded connection with the upper end of the guide motor (10), the guide housing (112) is rotatably sleeved on the upper end of the guide housing (10), the lower end of a motor rotor (114) arranged in the guide motor (10) is in threaded connection with the transmission shaft (12);
The guide friction blocks (11) are provided with a plurality of pieces, the guide friction blocks (11) are uniformly distributed along the circumferential direction and are connected outside the rotary sleeve (112), and hard alloy teeth are inlaid on the surfaces of the guide friction blocks (11) so as to improve the surface wear resistance;
The guide friction blocks (11) are provided with 4 pieces, the 4 pieces of guide friction blocks (11) are identical in shape, are uniformly distributed along the circumferential direction and are connected outside the rotary sleeve (112), adjacent guide friction blocks (11) are not separated, hard alloy teeth are inlaid on the surfaces of the guide friction blocks (11) through internal connection, and the arrangement is used for improving the surface wear resistance of the guide friction blocks;
the guiding friction block (11) comprises a measuring bag (111) and a hydraulic piston (113), wherein the measuring bag (111) is embedded in the outer ring of the rotary sleeve (112), the shell of the hydraulic piston (113) is welded on the outer ring of the rotary sleeve (112), and one end of the motor rotor (114) is sleeved in the shell of the guiding motor (10);
the motor rotor (114) is a part for driving the drill bit to rotate, one end of the motor rotor is positioned in the guide motor (10), and the other end of the motor rotor is connected to the transmission shaft (12) through the guide friction block (11); when the geosteering drilling test tool (30) is used, a drill bit is connected with the bottom end of the transmission shaft (12), the drill bit provides steering drilling power by the steering motor (10), and the steering motor (10) drives the transmission shaft (12) to rotate so as to drive the drill bit to drill in a steering way;
when using the geosteering well test tool, a surface control simulation system is used;
the pulse generator (5) can feed back underground information to a ground control simulation system, and the ground control simulation system adjusts the weight on bit and the displacement after receiving the information so as to realize the guiding drilling of the guiding motor (10);
The ground control simulation system further comprises a PLC (20), a riser manifold (21), a sensor (22), a manual valve (23), a hydraulic control valve (24), a hydraulic pipeline (25), a mud pipeline (26), a decoding unit (27), a terminal (28) and a hydraulic control unit (29), wherein the PLC (20), the terminal (28) and the sensor (22) are respectively connected with the decoding unit (27), one end of the hydraulic control unit (29) is connected with the decoding unit (27) and the other end of the hydraulic control unit is connected with the hydraulic control valve (24) through the hydraulic pipeline (25), the sensor (22) is connected with the riser manifold (21), the riser manifold (21) is sequentially connected with the manual valve (23) and the hydraulic control valve (24), the hydraulic control valve (24) is connected with the mud pipeline (26), the mud pipeline (26) is connected with a geosteering test tool, and the ground control simulation system adjusts the direction and positions of a drill bit by collecting information of the geosteering test tool and storing the information;
The method comprises the following steps: s1, assembling the geosteering well testing tool (30) and each component of a ground control simulation system according to a connection relationship; s2, starting a guide motor (10), starting drilling by a drill bit, recording data while drilling, and recording data of a sensor (22), a decoding unit (27), a terminal (28) and a hydraulic control unit (29) by a PLC (20); s3, according to the data in the S2 and the feedback data of the pulse generator (5), if deviation occurs between the drill bit guiding and the original design, the flow parameters and the pressure parameters are regulated through the manual control valve (23), the hydraulic control valve (24) and the hydraulic control unit (29); and S4, alarming if the data parameters are beyond the normal range.
2. A method of using a geosteering testing tool according to claim 1, wherein the gamma meter (8) is 12 inches from the drill bit 8 ", the accuracy of the sensor (22) is such that: the error of the testing azimuth angle is within +/-0.3 degrees, the error of the well inclination angle is within +/-0.1 degrees, the error of the deviation angle is within +/-0.1 degrees, the using temperature range of the gamma instrument (8) is 0 ℃ and 150 ℃, the gamma instrument is applicable to 9:9' of the borehole size 8, and the position of the sensor (22) is less than or equal to 3 feet away from the drill bit.
3. A method of using a geosteering testing tool according to claim 1, wherein the electrical power of the gamma meter (8) and sensor (22) is provided by a string of high energy batteries (7), the string of high energy batteries (7) being connected in series by a plurality of lithium batteries.
4. The method of using a geosteering well test tool of claim 1, wherein the surface control simulation system further comprises an alarm light and an alarm display, and wherein in step S4, the alarm is performed by lighting the alarm light and displaying data outside the normal range on the alarm display.
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| CN112878913B (en) * | 2021-01-29 | 2022-05-10 | 中煤科工集团西安研究院有限公司 | Underground coal mine buried wire rotary guide drilling tool combination and industrial control method |
| CN114279948A (en) * | 2021-11-03 | 2022-04-05 | 兰州大学 | Testing system for evaluating weathering degree and reinforcing effect of rock-soil material |
| CN116950566B (en) * | 2023-09-19 | 2023-12-08 | 上海达坦能源科技股份有限公司 | Self-generating near-bit geosteering tool |
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