CN215595533U - Pumping unit well head antiseep sealing device - Google Patents
Pumping unit well head antiseep sealing device Download PDFInfo
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- CN215595533U CN215595533U CN202121490136.7U CN202121490136U CN215595533U CN 215595533 U CN215595533 U CN 215595533U CN 202121490136 U CN202121490136 U CN 202121490136U CN 215595533 U CN215595533 U CN 215595533U
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Abstract
The utility model relates to the technical field of oilfield equipment, in particular to a wellhead anti-leakage sealing device of a pumping unit, which comprises a wellhead connecting seat, an eccentric adjusting ball body, a locking nut, a wax scraping flashboard, a connecting body and an adjusting press cap, wherein the wellhead connecting seat, the eccentric adjusting ball body, the locking nut, the wax scraping flashboard, the connecting body and the adjusting press cap are sequentially sleeved on a pumping rod; the wellhead connecting seat is connected with a wellhead oil pipe, the eccentric adjusting sphere is positioned in a spherical bowl of the wellhead connecting seat, and the locking nut is in threaded connection with the wellhead connecting seat; the wax scraping flashboard is positioned in the eccentric adjusting sphere, and the upper part of the eccentric adjusting sphere is connected with the lower part of the connecting body; the upper part of the connecting body is connected with the adjusting pressing cap, a lower energy accumulator is arranged in the connecting body, and an upper energy accumulator is arranged in the adjusting pressing cap; the eccentric adjusting ball body is also internally provided with a blowout prevention gate; one side of the connecting body is provided with a particle adding device; be equipped with two packings in the connector, add wear-resisting granule in the middle of two packings to reduce the friction between sucker rod and the packing. The utility model solves the difficult problem of well mouth sealing and improves the working efficiency of oil production of the oil pumping unit.
Description
Technical Field
The utility model relates to the technical field of oilfield equipment, in particular to an anti-leakage sealing device for a wellhead of an oil pumping unit.
Background
In the oil extraction process of the oil pumping unit, an annular space is formed between the oil pumping rod and the oil pipe, and is a sealing device of oil, water and gas, which is generally called a packing box, the inside of the oil pumping device is provided with an annular packing which can seal the oil pumping rod and the oil pipe when the oil pumping rod moves in the oil pipe, the oil pumping device is called as a long shaft type sealing device, because the pumping unit continuously works and the continuous friction between the pumping rod and the packing causes the damage of the annular packing, the untight sealing is caused, the oil, the water and the gas are leaked, and the oil, the water and the gas flow out from the top of the packing box in a large quantity in serious cases, thereby causing the pollution of a well mouth and the surrounding environment, and the work is very complicated when the packing is replaced again, the replacement and use period is very short, generally, the packing needs to be replaced once in 5 to 7 days, therefore, the working efficiency of the pumping unit is directly influenced, the labor cost is increased, and a large amount of environmental pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, provides the anti-leakage sealing device for the wellhead of the pumping unit, solves the problem of wellhead sealing, improves the working efficiency of oil production of the pumping unit, reduces the pollution of oil and water to the environment and lightens the working strength.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
an oil pumping machine wellhead antiseep sealing device comprises
Comprises a well mouth connecting seat, an eccentric adjusting ball body, a locking nut, a wax scraping flashboard, a connecting body and an adjusting pressing cap which are sequentially sleeved on a sucker rod; the wellhead connecting seat is connected with a wellhead oil pipe, a ball bowl is arranged inside the wellhead connecting seat, the eccentric adjusting ball body is positioned in the ball bowl of the wellhead connecting seat, and the locking nut is in threaded connection with the wellhead connecting seat, so that the eccentric adjusting ball body is fixed to be parallel to the sucker rod; the wax scraping flashboard is positioned in the eccentric adjusting sphere, and the upper part of the eccentric adjusting sphere is in threaded connection with the lower part of the connecting body; the upper part of the connecting body is connected with the adjusting pressing cap, a lower energy accumulator is arranged in the connecting body, an upper energy accumulator is arranged in the adjusting pressing cap, and a centering sleeve is arranged at the top end of the adjusting pressing cap; the eccentric adjusting ball body is also internally provided with a blowout prevention gate; a particle adding device is arranged on one side of the connecting body; the annular rubber packing of a cover on the sucker rod is respectively equipped with in the connector and on connector upper shed looks punishment, adds wear-resisting granule through the granule interpolation device in the middle of two packings, has reduced the friction between sucker rod and the packing.
Furthermore, the upper energy accumulator and the lower energy accumulator are respectively provided with a protection device.
Further, the particle adding device comprises a feeding body arranged on the connecting body, a one-way valve is arranged in the feeding body, and the end part of the feeding body is connected with the medicine supply device.
Furthermore, the end part of the feeding body is connected with a protective cover, when the feeding body is required to be connected with a medicine supply device, the protective cover is detached and used for daily protection of the feeding body.
Further, the medicine supply device is including adding the medicine joint, with the medicine body that adds the medicine articulate, adds the internal medicine lead screw that is equipped with of medicine, adds the internal one end that is located the medicine and is connected with the piston of medicine lead screw, and the other end is connected with lead screw plate pole, and lead screw plate pole is connected with the screw, and the screw is fixed to be set up on adding the medicine body. When the wear-resisting granule is added to needs, pack into with wear-resisting granule and add medicine internally, rotatory lead screw board pole is connected the direction promotion with wear-resisting granule to being close to adding medicine, and it is internal to enter into the feeding body through adding medicine, because thrust effect opens the check valve, wear-resisting granule enters into the connector at last, accomplishes work.
Further, the wear-resistant particles are wear-resistant rubber particles.
The utility model has the technical effects that:
compared with the prior art, the wellhead anti-leakage sealing device of the oil pumping unit has the following advantages:
1. the utility model prolongs the period of replacing the packing, the original period of replacing the packing is once every 5 to 7 days, and the replacing period is six months to eight months;
2. the utility model reduces the downtime, not only increases the oil production working efficiency of the oil pumping unit, but also increases the wear-resistant service cycle of oil pumping, and simultaneously solves the environmental protection problem;
3. the packing is replaced by the fluororubber polymer particle composite filler, and the packing and polish rod friction sealing device is replaced by the protection device made of the fluororubber material;
4. the utility model replaces the manual work with the mechanical energy-continuing device, reduces the labor intensity of oil extraction workers, reduces the labor cost, solves the safety problem, needs 3 workers for operation in the prior art, and only needs 1 operator for operation.
5. The utility model avoids the leakage of oil, water and gas at the well mouth and reduces the pollution to the environment.
6. The method has the advantages of simple and quick operation of replacing and adding the fluororubber polymer particle composite filler, time saving, sealing benefit increase, polished rod resistance and wear resistance reduction, and great reduction of electricity-saving cost.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of the structure of the drug delivery device of the present invention.
1. A wellhead connecting seat; 2. locking the nut; 3. adjusting an eccentric sphere; 4. blowout prevention gates; 5. a wax scraping flashboard 6 and a connecting body; 7. a lower accumulator; 8. an upper accumulator; 9. adjusting the pressure cap; 10. a one-way valve; 11. a material adding body; 12. a protective cover; 13. a centralizing sleeve; 14. a stressing rod; 15. a dosing joint; 16. Adding a medicine body; 17. a nut; 18. adding a medicine lead screw; 19. a piston; 20. a lead screw plate rod; 21. packing; 22. and a protection device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the specification.
Example 1:
the wellhead antiseep sealing device of the pumping unit related to the embodiment comprises a wellhead connecting seat 1, an eccentric adjusting ball body 3, a locking nut 2, a wax scraping flashboard 5, a connecting body 6 and an adjusting pressing cap 9 which are sequentially sleeved on a pumping rod; the wellhead connecting seat 1 is connected with a wellhead oil pipe, a ball bowl is arranged inside the wellhead connecting seat, the eccentric adjusting ball body 3 is positioned in the ball bowl of the wellhead connecting seat 1, and the locking nut 2 is in threaded connection with the wellhead connecting seat 1, so that the eccentric adjusting ball body 3 is fixed to be parallel to the sucker rod; the wax scraping flashboard 5 is positioned in the eccentric adjusting ball body 3, and the upper part of the eccentric adjusting ball body 3 is in threaded connection with the lower part of the connecting body 6; the upper part of the connecting body 6 is connected with an adjusting pressure cap 9, a lower energy accumulator 7 is arranged in the connecting body 6, an upper energy accumulator 8 is arranged in the adjusting pressure cap 9, and a righting sleeve 13 is arranged at the top end of the adjusting pressure cap 9; the eccentric adjusting ball body 3 is also internally provided with a blowout prevention gate 4; a particle adding device is arranged on one side of the connecting body 6; the annular rubber packing 21 sleeved on the sucker rod is respectively arranged in the connecting body 6 and at the flat position of the upper opening of the connecting body 6, and the wear-resistant particles are added between the two packing 21 through the particle adding device, so that the friction between the sucker rod and the packing is reduced.
The upper accumulator 8 and the lower accumulator 7 are respectively provided with a protection device 22, and preferably, the protection device 22 is made of a fluororubber material. The wear-resistant particles are wear-resistant rubber particles, and preferably, the wear-resistant rubber particles are fluororubber polymer particles.
The particle adding device comprises a feeding body 11 arranged on the connecting body 6, a one-way valve 10 is arranged in the feeding body 11, and the end part of the feeding body 11 is connected with the medicine supply device. The dosing body 11 is further connected at its end to a protective cap 12, which protective cap 12 is removed when it is desired to connect the dosing device, the protective cap 12 being used for daily protection of the dosing body 11.
The medicine supply device comprises a medicine adding connector 15, a medicine adding body 16 connected with the medicine adding connector 15, a medicine adding lead screw 18 is arranged in the medicine adding body 16, one end of the medicine adding lead screw 18, which is positioned in the medicine adding body 16, is connected with a piston 19, the other end of the medicine adding lead screw is connected with a lead screw plate rod 20, the lead screw plate rod 20 is connected with a screw 17, and the screw 17 is fixedly arranged on the medicine adding body 16. When wear-resisting granule is added to needs, pack into with wear-resisting granule and add medicine body 16 in, rotatory lead screw board pole 20 pushes wear-resisting granule to being close to with medicine joint 15 direction, and in the medicine body 11 is added to the process of adding medicine joint 15, because thrust effect opens check valve 10, wear-resisting granule enters into connector 6 at last, accomplishes work.
The side surface of the adjusting pressure cap 9 is provided with a stress application rod 14, the stress application rod 14 is rotated, the adjusting pressure cap 9 is compressed downwards, and the energy accumulator compresses the wear-resistant particles to form a closed rubber mat-shaped structure.
The working principle is as follows: before the device is installed, the pumping unit is stopped, the upper energy accumulator 8 is installed in the adjusting pressure cap 9 during installation, the centering sleeve 13 is installed at the top end of the adjusting pressure cap 9, the lower energy accumulator 7 is installed in the connecting body 6, the blowout prevention gate 4 is installed in the eccentricity adjusting sphere 3, and preparation work is finished in sequence.
Firstly well head connecting seat 1, accent eccentric spheroid 3, lock nut 2, scrape wax flashboard 5, connector 6, adjustment pressure cap 9, embolia the sucker rod in proper order on, install the polished rod eye on the sucker rod again, the installation anticreep of sucker rod top connects, just so can tear the square checkpost of installing on the sucker rod off, well head connecting seat 1 is connected with former well head oil pipe, adjustment eccentric position, put into the ball bowl of well head connecting seat 1 to accent eccentric spheroid 3, screw lock nut 2 and the screw thread on the well head connecting seat 1, make accent eccentric spheroid 3 fixed and sucker rod and be parallel state, will scrape wax flashboard 5 and put into accent eccentric spheroid 3 in, screw connector 6 internal thread and accent eccentric spheroid 3 external screw thread again.
An annular rubber packing 21 is provided with an inclined opening, is sleeved on a sucker rod and is placed into the connecting body 6, wear-resistant rubber particles are added, then the annular rubber packing 21 is placed to be level with the upper opening of the connecting body 6, and then the adjusting pressure cap 9 and the thread on the connecting body 6 are screwed by applying force through the force applying rod 14.
Starting the pumping unit, making the sucker rod move up and down to work, opening the protective cover 12, connecting the dosing connector 15, putting the wear-resistant rubber particles into the dosing body 16 in advance, rotating the dosing screw plate rod 20 to push the piston 19 to advance to push the wear-resistant rubber particles into the dosing body 11, automatically opening the one-way valve 10 under the thrust action, and finishing the feeding work when the wear-resistant rubber particles enter the connecting body 6.
When the pumping unit is operated for a period of time, the pressure cap 9 is rotationally adjusted and locked by oil extraction workers, so that the internal wear-resistant rubber particles can be further compacted, the wear-resistant effect of the sucker rod is protected, and the effect of prolonging the service life of the sucker rod is achieved.
When the material is added for the second time, the adjusting press cap 9 needs to be loosened, the protective cover 12 is opened again to connect the dosing connector 15 with the dosing body 11, then the dosing screw plate rod 20 is rotated to perform secondary feeding on the device until the feeding body is filled, the dosing device is dismounted, the protective cover 12 is mounted, and the adjusting press cap 9 is rotated again to compact the newly added wear-resistant rubber particles.
According to the utility model, different connection modes such as clamp connection, connection in an oil pipe and connection with external threads can be designed according to the connection condition of the original well mouth, the connection part is designed into a screw rod spiral ball bowl type based on the eccentricity degree of the sucker rod and the oil pipe, the offset state of the sucker rod can be adjusted, and a sealing rubber ring is arranged between the ball head and the ball bowl to ensure the sealing of the connection part.
Wax removal action: when locking upper portion connector 6, lower energy storage ware 7 is direct will scrape wax flashboard 5 compression, makes 5 hole contractions of scraping wax flashboard and sucker rod in close contact with, scrapes the wax clearance on the sucker rod, falls into in the oil pipe of lower extreme, along with oil, water entering oil pipeline.
The blowout prevention function is as follows: the blowout prevention gate 4 arranged in the eccentric adjusting ball body 3 has the main effects that when the sucker rod is broken and falls into an oil pipe, liquid in the well is sprayed upwards due to high underground pressure, and at the moment, the gate plate on the blowout prevention gate 4 closes the gate from bottom to top under the action of liquid impact force in the well, so that the liquid in the well is sealed in the oil pipe.
When the oil pumping rod is installed, one end of the righting sleeve of the upper energy accumulator and one end of the righting sleeve of the lower energy accumulator are respectively provided with the protection device 22 made of the fluororubber material, fluororubber polymer particles are added between the two packing sets 21, and when the oil pumping rod normally works, the wear-resistant rubber particles are extruded by the upper energy accumulator and the lower energy accumulator to form a closed rubber mat shape, so that the oil pumping rod is sealed in the connecting body 6.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a beam-pumping unit well head antiseep sealing device which characterized in that: comprises a well mouth connecting seat (1), an eccentric adjusting ball body (3), a locking nut (2), a wax scraping flashboard (5), a connecting body (6) and an adjusting press cap (9) which are sequentially sleeved on a sucker rod; the wellhead connecting seat (1) is connected with a wellhead oil pipe, a ball bowl is arranged inside the wellhead connecting seat, the eccentric adjusting ball body (3) is positioned in the ball bowl of the wellhead connecting seat (1), and the locking nut (2) is in threaded connection with the wellhead connecting seat (1) so that the eccentric adjusting ball body (3) is fixed to be parallel to the sucker rod; the wax scraping flashboard (5) is positioned in the eccentric adjusting ball body (3), and the upper part of the eccentric adjusting ball body (3) is in threaded connection with the lower part of the connecting body (6); the upper part of the connecting body (6) is connected with an adjusting pressure cap (9), a lower energy accumulator (7) is arranged in the connecting body (6), an upper energy accumulator (8) is arranged in the adjusting pressure cap (9), and a righting sleeve (13) is arranged at the top end of the adjusting pressure cap (9); a blowout prevention gate (4) is also arranged in the eccentric adjusting ball body (3); a particle adding device is arranged on one side of the connecting body (6); annular rubber packing (21) sleeved on the sucker rod are respectively arranged in the connecting body (6) and at the upper opening phase position of the connecting body (6), and wear-resistant particles are added between the two packing (21) through a particle adding device.
2. The wellhead anti-leakage sealing device of the pumping unit according to claim 1, characterized in that: and the upper energy accumulator (8) and the lower energy accumulator (7) are respectively provided with a protection device (22).
3. The wellhead anti-leakage sealing device of the pumping unit according to claim 2, characterized in that: the protection device (22) is made of a fluororubber material.
4. The oil pumping wellhead anti-leakage sealing device according to claim 1, 2 or 3, characterized in that: the particle adding device comprises a feeding body (11) arranged on the connecting body (6), a one-way valve (10) is arranged in the feeding body (11), and the end part of the feeding body (11) is connected with the medicine supply device.
5. The wellhead anti-leakage sealing device of the pumping unit according to claim 4, characterized in that: the medicine supply device comprises a medicine adding connector (15), a medicine adding body (16) connected with the medicine adding connector (15), a medicine adding lead screw (18) is arranged in the medicine adding body (16), one end of the medicine adding lead screw (18) located in the medicine adding body (16) is connected with a piston (19), the other end of the medicine adding lead screw is connected with a lead screw plate rod (20), the lead screw plate rod (20) is connected with a screw nut (17), and the screw nut (17) is fixedly arranged on the medicine adding body (16).
6. The wellhead anti-leakage sealing device of the pumping unit according to claim 4, characterized in that: the end part of the filler body (11) is connected with a protective cover (12).
7. The wellhead anti-leakage sealing device of the pumping unit according to any one of claims 1, 2, 3, 5 and 6, which is characterized in that: and a force applying rod (14) is arranged on the side surface of the adjusting pressure cap (9).
8. The wellhead anti-leakage sealing device of the pumping unit according to any one of claims 1, 2, 3, 5 and 6, which is characterized in that: the wear-resistant particles are wear-resistant rubber particles.
9. The wellhead anti-leakage sealing device of the pumping unit according to claim 8, characterized in that: the wear-resistant rubber particles are fluororubber polymer particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490136.7U CN215595533U (en) | 2021-07-01 | 2021-07-01 | Pumping unit well head antiseep sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490136.7U CN215595533U (en) | 2021-07-01 | 2021-07-01 | Pumping unit well head antiseep sealing device |
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| Publication Number | Publication Date |
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| CN215595533U true CN215595533U (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121490136.7U Active CN215595533U (en) | 2021-07-01 | 2021-07-01 | Pumping unit well head antiseep sealing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934755A (en) * | 2022-07-25 | 2022-08-23 | 帕特恩(大庆)石油科技有限公司 | Composite particle sealing device for oil pumping unit wellhead and use method thereof |
-
2021
- 2021-07-01 CN CN202121490136.7U patent/CN215595533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934755A (en) * | 2022-07-25 | 2022-08-23 | 帕特恩(大庆)石油科技有限公司 | Composite particle sealing device for oil pumping unit wellhead and use method thereof |
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