CN210440006U - Oil-submersible electric pump well underground safety valve opening device - Google Patents
Oil-submersible electric pump well underground safety valve opening device Download PDFInfo
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- CN210440006U CN210440006U CN201921132734.XU CN201921132734U CN210440006U CN 210440006 U CN210440006 U CN 210440006U CN 201921132734 U CN201921132734 U CN 201921132734U CN 210440006 U CN210440006 U CN 210440006U
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Abstract
The utility model discloses an oil-submersible electric pump downhole safety valve opening device includes application of force pole outer tube, application of force pole and adjustment nipple joint, and the application of force pole outer tube is connected with the adjustment nipple joint, and the application of force pole is installed in the application of force pole outer tube, passes through threaded connection with the application of force pole outer tube, and the lower part and hollow sucker rod threaded connection, the top of application of force pole are equipped with application of force structure, and the lower part of adjustment nipple joint is equipped with the external screw thread and can be connected with production tree or oil pipe. The device not only can effectively open the underground safety valve, but also ensures that the well-flushing channel has abundant space and smoothness. The lower end of the reinforcing rod in the device can be connected with the hollow sucker rod, the lower end of the adjusting short section can be connected with the Christmas tree or the oil pipe of the well mouth, the well washing efficiency is obviously improved, and the construction period is effectively shortened.
Description
Technical Field
The utility model relates to a well workover instrument of oil industry electrical pump well of diving, especially a device is opened to electrical pump well of diving subsurface safety valve.
Background
In oil and gas wells for oil production using electrical submersible pumps in the oil industry, two safety valves are often installed near the wellhead of the oil and gas well for safety control, one being a wellhead safety valve and the other being a downhole safety valve. The well head is also provided with a high-low pressure sensing valve for monitoring the pressure of the well head pipeline in real time. When the wellhead is higher than the set wellhead high pressure value or lower than the set wellhead low pressure value, the ground control system can automatically close the underground safety valve and the ground safety valve. The hydraulic pipeline connected with the underground safety valve is controlled by a ground control system, the hydraulic pump is controlled by the ground control system, hydraulic power is provided for the underground safety valve through the hydraulic pipeline, and the underground safety valve is opened when needed, such as during workover operation. The hydraulic pump has automatic pressurize function, can maintain the hydraulic pressure stability of hydraulic system output, when the wellhead assembly closed, also can adopt plus manual pump operation, can control ground relief valve and subsurface safety valve simultaneously.
However, the downhole safety valve is frequently opened and closed due to unstable downhole production pressure, and the downhole safety valve is a mechanical mechanism, so that the opening and closing are frequently failed. When the underground safety valve fails, the underground safety valve cannot be opened in a hydraulic mode through a ground control system. When the well repairing operation of the oil-gas well is carried out, the operation can be carried out only by taking the original well pipe column out, and before the original well pipe column is taken out, the underground safety valve communicated with the oil sleeve annular space must be opened firstly, and other operations are carried out after well washing and killing. Because the underground safety valve fails and can not be opened, the conventional method is to firstly remove a wellhead device and the wellhead safety valve and other devices, and then jack the underground safety valve in a T-shaped rod throwing mode. However, the opening mode of the T-shaped rod is used, the underground safety valve cannot be opened sometimes, even if the underground safety valve is opened sometimes, the T-shaped rod in the oil pipe reduces the space of the drift diameter in the oil pipe, the oil sleeve communication channel is made to be small, the well washing efficiency is greatly reduced, the pumping pressure is increased, the well washing time and the well washing effect are prolonged, the operation time of the whole oil well is prolonged relatively, the construction efficiency is reduced, efficient operation is not facilitated, and the well repairing cost is increased.
There remains a need for improved opening tools for downhole safety valves.
Disclosure of Invention
The utility model aims at providing an oily electric pump downhole safety valve opening device is submerged in oil for effectual downhole safety valve of opening, improves well-flushing efficiency, shortens construction cycle, reduces the operating cost.
The technical solution of the utility model is that:
the utility model provides an oil-submersible electric pump downhole safety valve opening device includes application of force pole outer tube, application of force pole and adjustment nipple joint, and the application of force pole outer tube is connected with the adjustment nipple joint, and the application of force pole is installed in the application of force pole outer tube, passes through threaded connection with the application of force pole outer tube, and the lower part and the hollow sucker rod threaded connection, the top of application of force pole are equipped with application of force structure, and the lower part of adjustment nipple joint is equipped with the external screw thread and can be connected with production tree or oil pipe.
The inner cavity of the upper part of the outer tube of the stress application rod is provided with a trapezoidal internal thread which is connected with a trapezoidal external thread section on the upper part of the stress application rod, the inner circle of the lower part of the outer tube of the stress application rod is provided with a sealing ring, and the outer circle of the lower part of the outer tube of the stress application rod is provided with an external thread which is connected with.
The sealing ring is provided with at least one channel.
The excircle of the upper part of the adjusting short section is a non-equal diameter excircle and is provided with a supporting step, the supporting step is arranged on the upper end face of a Christmas tree or an oil pipe, the inner circle of the upper part of the adjusting short section is a non-equal diameter inner circle and is provided with a stress application rod outer pipe connecting cavity, and the inner diameter of the stress application rod outer pipe connecting cavity is larger than the inner circle of the lower part of the adjusting short section and is in threaded connection with the stress application rod outer pipe.
And a limit nut and a locking nut are also arranged on the rod body between the trapezoidal thread section at the upper part of the stress application rod and the stress application structure.
The force application structure at the top of the force application rod comprises a force application rod, a force application hand wheel and a force application wrench.
The lower part of the stress application rod is a hollow sucker rod connecting cavity, and a hollow sucker rod internal thread is arranged in the hollow sucker rod connecting cavity.
The outer wall of the upper rod body of the hollow sucker rod connecting cavity of the stress application rod is also provided with a limiting step.
The length of the hollow sucker rod connected with the lower part of the stress application rod is consistent with the length of an oil pipe between the underground safety valve and a well head.
Compared with the prior art, the utility model discloses a show the result of use and be: the device can effectively open the underground safety valve by 100 percent, and also ensures that a well washing channel has abundant space and smoothness. The lower end of the stress application rod in the device can be connected with the hollow sucker rod, and the lower end of the adjusting short section can be connected with a Christmas tree or an oil pipe of a well head. When the safety valve in the well can not be opened in the oil-gas well operation, the hollow sucker rod can be firstly put into the well, and after the rod column of the hollow sucker rod which is connected and put into the well is contacted with the safety valve in the well, the rod column of the hollow sucker rod is lifted up, so that the tool is connected with the rod column of the hollow sucker rod which is put into the well. The length of the hollow sucker rod on the uppermost surface of the rod column of the hollow sucker rod can be changed according to the underground condition, and the hollow sucker rod is used for adjusting the distance between the tool and the rod column of the hollow sucker rod and the underground safety valve, so that the lowermost end of the rod column of the hollow sucker rod is positioned within 0.5 meter above the underground safety valve. The adjusting short section is connected and tightened with a Christmas tree or an oil pipe at a well mouth, then the adjusting short section rotates downwards through a force application structure at the top of a force application rod, the force application rod drives a hollow sucker rod post connected with the lower part to move downwards and push open a valve plate of the underground safety valve, the valve plate is opened, a limiting nut and a locking nut tightly support the force application rod on the upper surface of an outer pipe of the force application rod, the force application rod and the hollow sucker rod post are hung more safely and reliably, a blowout preventer and a backwashing well at the well mouth are closed in case of falling into the well in prevention, after the oil pipe flows out, the valve plate of the underground safety valve is confirmed to be opened, a well washing pump is closed, a related hollow sucker rod, the underground safety valve opening device and the oil pipe which are lowered into the well are lifted, and a.
Therefore, the device can effectively open the underground safety valve by 100 percent, simultaneously ensure the smoothness of a well washing channel, obviously improve the well washing efficiency and effectively shorten the construction period. Meanwhile, because the sealing ring in the tool is always in a sealing state, when the oil gas pressure exists in the well, the oil gas cannot be blown up from the tool. Therefore, the ground process has no puncture after the underground safety valve is opened under the condition that oil gas pressure exists in the well, the personal safety of ground operators is effectively protected, and good economic benefit and social benefit can be obtained.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings, without limiting the scope of the invention, and all modifications made by the design idea of the present invention fall into the scope of the invention.
Referring to fig. 1, an oil-submersible electric pump downhole safety valve opening device includes stress application pole outer tube 4, stress application pole 3 and adjustment nipple joint 6, stress application pole outer tube 4 is connected with adjustment nipple joint 6, stress application pole 3 is installed in stress application pole outer tube 4, pass through threaded connection with stress application pole outer tube 4, stress application pole 3's lower part and hollow sucker rod threaded connection, the top is equipped with application of force structure, the lower part of adjustment nipple joint 6 is equipped with the external screw thread and can be connected with production tree or oil pipe.
The upper inner cavity of the outer tube 4 of the forcing rod is provided with a trapezoidal internal thread which is connected with a trapezoidal external thread section on the upper part of the forcing rod 3, the inner circle of the lower part of the outer tube 4 of the forcing rod is provided with a sealing ring 5, and the outer circle of the lower part is provided with an external thread which is connected with an adjusting short section 6.
The sealing ring 5 is provided with at least one channel. The sealing ring 5 can ensure the sealing between the outer pipe 4 of the stress application rod and the stress application rod 3, and prevent the oil gas from escaping out of the well when the oil gas pressure exists in the well.
The excircle of the upper part of the adjusting short section 6 is a non-equal diameter excircle and is provided with a supporting step 7, the supporting step 7 is seated on the upper end face of a Christmas tree or an oil pipe, the inner circle of the upper part of the adjusting short section 6 is a non-equal diameter inner circle and is provided with a stress application rod outer pipe connecting cavity, and the inner diameter of the stress application rod outer pipe connecting cavity is larger than the inner circle of the lower part of the adjusting short section 6 and is in threaded connection with a stress application rod outer pipe 4. The connection mode of the adjusting short section 6 and the outer tube 4 of the stress application rod is welding, pin joint and keyway joint.
And a limiting nut 2 and a locking nut 1 are further arranged on the rod body between the trapezoidal thread section at the upper part of the stress application rod 3 and the force application structure, and respectively play a role in limiting and tightening the stress application rod 3 downwards, so that the stress application rod 3 can downwards rotate to the upper end surface of the stress application rod outer tube 4 and be stopped.
The force application structure at the top of the force application rod 3 comprises a force application rod, a force application hand wheel and a force application wrench.
The lower part of the stress application rod 3 is a hollow sucker rod connecting cavity 9, and a hollow sucker rod internal thread is arranged in the hollow sucker rod connecting cavity 9 and can be connected with a hollow sucker rod.
The outer wall of the upper rod body of the hollow sucker rod connecting cavity 9 of the stress application rod 3 is also provided with a limiting table 8. The limiting step 8 can stop the upward rotation of the force applying rod 3 when the lower end surface of the force applying rod outer tube 4 is reached.
The length of the hollow sucker rod connected with the lower part of the stress application rod 3 is consistent with the length of an oil pipe between the underground safety valve and a well head.
When the safety valve in the well is not opened in the oil-gas-water well operation, the hollow sucker rod is firstly put into the well, so that the length of the oil pipe between the underground safety valve and the well mouth is equal to the length of the hollow sucker rod which is connected with the underground safety valve. When the lowest hollow sucker rod contacts the underground safety valve, the uppermost hollow sucker rod is lifted, and the tool is connected with the underground hollow sucker rod string, so that the lowest end of the hollow sucker rod string is positioned within 0.5 m above the underground safety valve.
When the tool is used in connection, the external thread on the lower part of the adjusting short section 6 is connected with a Christmas tree or an oil pipe, and the hollow sucker rod connecting cavity 9 on the lower part of the reinforcing rod 3 is connected with a hollow sucker rod. The adjusting short section 6 is connected with the Christmas tree at the well mouth and is tightened, the force application structure at the top of the force application rod 3 downwards rotates the force application rod 3, so that the force application rod 3 drives the hollow sucker rod column connected with the lower part to move downwards and jack the valve plate of the underground safety valve, and the valve plate is opened. The reinforcing rod 3 is locked on the outer tube 4 of the reinforcing rod by using the limiting nut 2 and the locking nut 1, so that the reinforcing rod 3 and the hollow sucker rod column are hung more stably and safely. Firstly, closing a wellhead blowout preventer and backwashing a well, confirming that a valve plate of an underground safety valve is opened after water is discharged from an oil pipe, and stopping a well washing pump. And then the related hollow sucker rod, the underground safety valve opening device and the oil pipe which are put into the well are lifted out, and the next operation procedure is continued.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.
Claims (9)
1. The utility model provides an oil-submersible electric pump downhole safety valve opening device, characterized by, including the application of force pole outer tube, application of force pole and adjustment nipple joint, the application of force pole outer tube is connected with the adjustment nipple joint, and the application of force pole is installed in the application of force pole outer tube, passes through threaded connection with the application of force pole outer tube, and the lower part and the hollow sucker rod threaded connection of application of force pole, top are equipped with application of force structure, and the lower part of adjustment nipple joint is equipped with the external screw thread and can be connected with production tree or oil pipe.
2. The opening device for the underground safety valve of the submersible electric pump well as the claim 1 is characterized in that the inner cavity of the upper part of the outer tube of the forcing rod is provided with a trapezoidal internal thread which is connected with the trapezoidal external thread section on the upper part of the forcing rod, the inner circle of the lower part of the outer tube of the forcing rod is provided with a sealing ring, and the outer circle of the lower part of the outer tube of the forcing rod is provided with an external thread which is connected with the adjusting short.
3. The submersible electric pump downhole safety valve opening device according to claim 2, wherein the sealing ring is provided with at least one groove.
4. The opening device for the subsurface safety valve of the submersible electric pump well as the claim 1 or 2 is characterized in that the upper excircle of the adjusting short section is a non-equal diameter excircle and is provided with a supporting step, the supporting step is seated on the upper end face of a Christmas tree or an oil pipe, the upper inner circle of the adjusting short section is a non-equal diameter inner circle and is provided with a stress application rod outer pipe connecting cavity, and the inner diameter of the stress application rod outer pipe connecting cavity is larger than the lower inner circle of the adjusting short section and is in threaded connection with the stress application rod outer pipe.
5. The opening device for the subsurface safety valve of the submersible electric pump well as the claim 2 is characterized in that a limiting nut and a locking nut are further arranged on the rod body between the trapezoidal thread section at the upper part of the forcing rod and the forcing structure.
6. The opening device for the subsurface safety valve of the submersible electric pump according to claim 5, wherein the force application structure on the top of the force application rod comprises a force application rod, a force application hand wheel and a force application wrench.
7. The opening device for the underground safety valve of the submersible electric pump according to claim 1, 2, 5 or 6, characterized in that the lower part of the forcing rod is a hollow sucker rod connecting cavity, and the hollow sucker rod connecting cavity is internally provided with hollow sucker rod internal threads.
8. The opening device for the underground safety valve of the submersible electric pump according to claim 7, characterized in that the outer wall of the upper rod body of the hollow sucker rod connecting cavity of the forcing rod is further provided with a limiting step.
9. The opening device for the subsurface safety valve of the submersible electric pump well according to claim 8, wherein the length of the hollow sucker rod connected to the lower portion of the stress application rod is matched with the length of the oil pipe between the subsurface safety valve and the well head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132734.XU CN210440006U (en) | 2019-07-18 | 2019-07-18 | Oil-submersible electric pump well underground safety valve opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132734.XU CN210440006U (en) | 2019-07-18 | 2019-07-18 | Oil-submersible electric pump well underground safety valve opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210440006U true CN210440006U (en) | 2020-05-01 |
Family
ID=70406041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921132734.XU Expired - Fee Related CN210440006U (en) | 2019-07-18 | 2019-07-18 | Oil-submersible electric pump well underground safety valve opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210440006U (en) |
-
2019
- 2019-07-18 CN CN201921132734.XU patent/CN210440006U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20210718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |