CN214697753U - Hydraulic control sleeve valve for oil well - Google Patents
Hydraulic control sleeve valve for oil well Download PDFInfo
- Publication number
- CN214697753U CN214697753U CN202120958660.6U CN202120958660U CN214697753U CN 214697753 U CN214697753 U CN 214697753U CN 202120958660 U CN202120958660 U CN 202120958660U CN 214697753 U CN214697753 U CN 214697753U
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- sleeve valve
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- 239000003129 oil well Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model provides an oil well hydraulic control sleeve valve, belongs to hydrovalve technical field, including the hydraulic valve body, the internal hydraulic pressure chamber that is equipped with of hydrovalve, hydraulic pressure intracavity portion one side divide into cavity and cavity down, it links to each other with the manometer to go up the cavity, the internal case that is equipped with of cavity down, case and ball sealer contact each other, the tip of cavity is equipped with sealed ball seat down, sealed ball seat links to each other with the bushing mouth, case and ball sealer move under hydraulic pressure in the cavity down, one side of cavity is equipped with the pressure release mouth in the removal route of ball sealer down, the hydraulic pressure chamber links to each other with the pressure boost cylinder body, the pressure boost cylinder body is to the pressure boost of hydraulic pressure intracavity. The utility model discloses a hydraulic control principle, its control pressure is adjustable and stable, uses more reliably stably.
Description
Technical Field
The utility model belongs to the technical field of the hydrovalve, concretely relates to oil well hydraulic control sleeve valve.
Background
In well production, casing pressure is one of the factors that affect well production. The change of the casing pressure can cause the change of the crude oil yield, and the casing pressure is too high, which can affect the seepage velocity of oil and gas quantity permeating into the casing of the oil well and the recovery ratio of the crude oil.
Practice proves that the oil well yield can be stabilized by keeping a certain balance relation between the formation pressure and the bottom hole pressure, the trend of slowing down the yield decline of the oil well is achieved, and the oil well in the middle and later periods of development adopts a mode of controlling the casing pressure to recover oil.
The spring for controlling the casing pressure is aged under the condition of long-time compression, and the valve can be failed due to freezing and blocking in winter, so that the casing pressure is unstable to control.
In addition, in the process of multiple rebounds of the spring of the device for controlling the sleeve pressure, the rebounding direction slightly deviates, so that the valve core falls back to the valve seat and cannot be strictly centered, the phenomenon of offset impact is caused, the valve core and the valve seat are abraded, and finally the sealing is not tight.
SUMMERY OF THE UTILITY MODEL
In order to solve the unstable and sealed not tight, freezing stifled scheduling problem of current control sleeve pipe pressure device control pressure, the utility model provides an oil well hydraulic control sleeve valve adopts the hydraulic control principle, and its control pressure is adjustable and stable, and is sealed inseparable, has the stifled measure of preventing frostbite, uses more reliably stably.
The utility model adopts the following technical scheme:
the utility model provides an oil well hydraulic control sleeve valve, includes the hydraulic valve body, the internal hydraulic pressure chamber that is equipped with of hydrovalve, hydraulic pressure intracavity portion one side divide into cavity and cavity down, it links to each other with the manometer to go up the cavity, the internal case that is equipped with of cavity down, case and ball sealer contact each other, the tip of cavity is equipped with sealed ball seat down, sealed ball seat links to each other with the bushing mouth, case and ball sealer move under hydraulic pressure in the cavity down, one side of cavity is equipped with the pressure release mouth in the removal route of ball sealer down, the hydraulic pressure chamber links to each other with the pressure boost cylinder body, the pressure boost cylinder body is to the pressure boost of hydraulic pressure intracavity.
Furthermore, a pressurizing rod is arranged in the pressurizing cylinder body, the pressurizing rod is connected with the lever mechanism, and the pressurizing cylinder body is connected with the hydraulic cavity through a one-way valve.
Furthermore, the other end of the lower cavity is provided with a limit baffle plate for preventing the valve core from moving out.
Furthermore, a pressure relief bolt is arranged on the hydraulic cavity.
Furthermore, the outer diameters of the valve core and the sealing ball are matched with the inner diameter of the lower cavity, and the valve core is provided with a sealing ring.
Furthermore, the inner walls of the sleeve connecting port, the pressure relief port and the channel communicated with the pressure relief port are coated with anti-icing coatings.
The utility model discloses an advantage and effect do:
1. the utility model discloses a hydraulic mode is adjusted the pressure in the control cover, makes pressure remain a fixed numerical value throughout, and the steady voltage measure is more reliable, and can not produce the phenomenon of hitting partially.
2. The utility model discloses a mode of paining anti-icing coating is frostproofing, makes the valve still can normally work winter.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic sleeve valve of a sending oil well.
The components in the figure: 1 is a lever mechanism, 2 is a pressure increasing rod, 3 is a pressure increasing cylinder body, 4 is a one-way valve, 5 is a pressure releasing bolt, 6 is a hydraulic cavity, 7 is a limit baffle, 8 is a valve core, 9 is a pressure releasing port, 10 is a sealing ball, 11 is a sealing ball seat, 12 sleeve connectors and 13 is a pressure gauge.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1, the utility model relates to an oil well hydraulic control sleeve valve, including a hydraulic valve body, hydraulic valve body is equipped with hydraulic pressure chamber 6, two cavitys about the 6 inside right sides in hydraulic pressure chamber fall into, goes up the outside manometer 13 of cavity connection, is provided with case 8 in the cavity of resorption, and case 8 is pushing up ball sealer 10, and the ball sealer 10 outside is provided with sealed ball seat 11, and the sealed ball seat 11 outside is connected with bushing connector 12.
The end faces of the upper cavity and the lower cavity in the hydraulic cavity 6 are connected with limiting baffles 7, the limiting baffles 7 prevent the valve core 8 from moving out, and holes for hydraulic oil to pass through are formed in the limiting baffles 7.
The valve core 8 and the sealing ball 10 move in the lower cavity under the hydraulic action, and a pressure relief opening 9 is formed in one side of the lower cavity within the moving path range of the sealing ball 10. The outer wall of the valve core 8 is matched with the sealing ball 10, and the space between the sleeve connecting port 12 and the pressure relief port 9 can be sealed.
And a pressure relief bolt 5 is arranged on the hydraulic cavity 6.
The outer diameters of the valve core 8 and the sealing ball 10 are matched with the inner diameter of the lower cavity, and a sealing ring is arranged on the valve core 8.
The inner walls of the sleeve connecting port 12, the pressure relief port 9 and the channel communicated with the pressure relief port and the pressure relief port are coated with anti-icing coatings.
A pressure increasing rod 2 is inserted in the pressure increasing cylinder body 3, a one-way valve 4 connected with a hydraulic cavity 6 is arranged at the lower end of the pressure increasing rod 2, and a lever mechanism 1 is connected to the top end of the pressure increasing rod 2.
The utility model discloses a working process and principle as follows:
before use, the hydraulic cavity 6 is filled with hydraulic oil, the lever mechanism 1 is controlled, the hydraulic oil pre-added into the pressurizing cylinder 3 is injected into the hydraulic cavity 6 through the check valve 4, and the lever mechanism 1 stops being pressed down when the pointer of the hydraulic gauge 13 indicates a preset value; the sleeve connecting port 12 is connected with a sleeve gas release valve, if the pressure in the sleeve is higher than a preset value, the sleeve pressure pushes the sealing ball 10 open through the gas release valve, after the sealing ball 10 pushes up the valve core 8, the excessive pressure in the sleeve is discharged into a gas recovery pipeline of an oil well from the pressure release port 9 until the sleeve pressure and the pressure in the hydraulic cavity 6 reach balance, the valve core 8 pushes the sealing ball 10 to return to the sealing ball seat 11, and the sleeve connecting port 12 is sealed again. The pressure in the hydraulic cavity 6 is controlled by the lever mechanism 1 and the pressure relief bolt 5 to regulate the pressure to rise and fall.
Claims (6)
1. A hydraulic control sleeve valve for an oil well is characterized in that: including hydraulic valve body, the internal hydraulic pressure chamber (6) that is equipped with of hydrovalve, the inside one side in hydraulic pressure chamber (6) is divided into cavity and lower cavity, it links to each other with manometer (13) to go up the cavity, internal case (8) that are equipped with of cavity of resorption, case (8) and ball sealer (10) contact each other, the tip of cavity is equipped with sealed ball seat (11) down, sealed ball seat (11) link to each other with sleeve pipe connector (12), case (8) and ball sealer (10) move in the cavity down under hydraulic pressure, one side of cavity is equipped with pressure release mouth (9) in the removal route of ball sealer (10) down, hydraulic pressure chamber (6) link to each other with pressure boost cylinder body (3), pressure boost cylinder body (3) are to hydraulic pressure chamber (6) internal pressure boost.
2. A well hydraulic sleeve valve according to claim 1, characterized in that: the hydraulic cylinder is characterized in that a pressurizing rod (2) is arranged in the pressurizing cylinder body (3), the pressurizing rod (2) is connected with the lever mechanism (1), and the pressurizing cylinder body (3) is connected with the hydraulic cavity (6) through a one-way valve (4).
3. A well hydraulic sleeve valve according to claim 1, characterized in that: the other end of the lower cavity is provided with a limit baffle (7) and a limit baffle (7) for preventing the valve core (8) from moving out.
4. A well hydraulic sleeve valve according to claim 1, characterized in that: and a pressure relief bolt (5) is arranged on the hydraulic cavity (6).
5. A well hydraulic sleeve valve according to claim 1, characterized in that: the outer diameters of the valve core (8) and the sealing ball (10) are matched with the inner diameter of the lower cavity, and a sealing ring is arranged on the valve core (8).
6. A well hydraulic sleeve valve according to claim 1, characterized in that:
and anti-icing coatings are coated on the inner walls of the sleeve connecting port (12), the inner wall of the pressure relief port (9) and the inner wall of a channel communicated with the inner wall and the pressure relief port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120958660.6U CN214697753U (en) | 2021-05-07 | 2021-05-07 | Hydraulic control sleeve valve for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120958660.6U CN214697753U (en) | 2021-05-07 | 2021-05-07 | Hydraulic control sleeve valve for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214697753U true CN214697753U (en) | 2021-11-12 |
Family
ID=78535815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120958660.6U Active CN214697753U (en) | 2021-05-07 | 2021-05-07 | Hydraulic control sleeve valve for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214697753U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115929256A (en) * | 2022-11-24 | 2023-04-07 | 辽宁瑞邦石油技术发展有限公司 | A casing pressure control device and its application |
-
2021
- 2021-05-07 CN CN202120958660.6U patent/CN214697753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115929256A (en) * | 2022-11-24 | 2023-04-07 | 辽宁瑞邦石油技术发展有限公司 | A casing pressure control device and its application |
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