CN117027713A - A hanging oil drain - Google Patents
A hanging oil drain Download PDFInfo
- Publication number
- CN117027713A CN117027713A CN202311228557.6A CN202311228557A CN117027713A CN 117027713 A CN117027713 A CN 117027713A CN 202311228557 A CN202311228557 A CN 202311228557A CN 117027713 A CN117027713 A CN 117027713A
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- CN
- China
- Prior art keywords
- plunger
- oil
- hanger
- oil drain
- oil pipe
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/08—Wipers; Oil savers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a suspension type oil drain device, which comprises an oil pipe, a pressure relief bin, a pump barrel and an oil pumping device, wherein the oil pumping device comprises an oil pumping rod, a piston and a positioning device, the positioning device comprises a plunger hanger sleeved on the outer wall of the oil pumping rod and capable of sliding in the oil pipe in a sealing way and a tile sleeve arranged on the inner wall of the oil pipe and provided with a groove, a plurality of pairs of mounting holes are symmetrically arranged on the outer wall of the plunger hanger in the circumferential direction, springs in a compressed state are arranged in the mounting holes, and limit balls are arranged at one ends of the springs, which are far away from the oil pumping rod, and can be clamped in the groove along with the movement of the plunger hanger when the plunger hanger is lifted into the oil pipe; when the tile sleeve plunger suspension device with the groove is arranged in the oil pipe and matched with the tile sleeve, the plunger is positioned in the pressure relief bin, and the oil drain hole on the pump barrel can be exposed to realize oil drain, so that the suspension type oil drain device can drain oil during pipe column lifting operation, thereby avoiding pollution to the environment caused by taking well liquid to the ground during pump inspection or well workover operation, and realizing cleaning operation.
Description
Technical Field
The invention relates to the technical field of oilfield oil extraction equipment, in particular to a suspension type oil drainage device.
Background
In the oil extraction field of petroleum industry, an oil pump is a common oil extraction device, and when the current oil pump is used for detecting a pump or repairing a well, the oil pump needs to be lifted to the ground, wherein a plunger of the oil pump is lifted along with an oil pumping rod, and a pump barrel is lifted along with an oil pipe. For some oil wells with plunger diameter larger than the diameter of the oil pipe, the sucker rod can only be lifted out of the ground first during maintenance operation, and the oil pump and the plunger are lifted up together with the sucker rod.
In order to solve the problems, the invention provides a suspension type oil drain device, which solves the problem that the conventional oil drain device is easy to pollute the ground.
Disclosure of Invention
The invention aims to provide a suspension type oil drain device, which achieves the purpose of avoiding the pollution of the environment caused by the fact that well fluid is brought to the ground during the operation of checking a pump or repairing a well.
In order to achieve the above object, the present invention provides the following solutions:
the utility model provides a suspension type bleeder, is in including oil pipe, pressure release storehouse, pump barrel and the setting that communicate in proper order are in and downwardly extending to pumping unit in the pump barrel, pumping unit includes the sucker rod, set up the sucker rod bottom can be in laminating gliding piston in the pump barrel and set up on the sucker rod and be located positioner of piston top, positioner is including the cover establish on the sucker rod outer wall and can seal gliding plunger hanger and set up on the oil pipe inner wall and set up fluted bush, a plurality of pairs of mounting holes have been seted up to the outer wall circumference symmetry of plunger hanger, the spring that is in compression state is installed to the mounting hole, the spring is kept away from the one end of sucker rod all is provided with the spacing ball, works as the plunger hanger draws in the oil pipe, the spacing ball can be clamped in along with the removal of plunger hanger in the recess.
Preferably, a cone transition plate with two open ends and arc side walls is arranged in the pressure release bin, an upper opening of the cone transition plate is connected with the lower end of the oil pipe and communicated with the oil pipe, the inner diameter of the upper opening is equal to the inner diameter of the oil pipe, and the inner diameter of the lower opening of the cone transition plate is larger than the inner diameter of the oil pipe.
Preferably, the cone transition plate is not contacted with the inner wall of the pressure relief bin, and a plurality of through holes for ventilation are formed in the cone transition plate.
Preferably, the outer diameter of the limiting ball is not larger than the inner diameter of the mounting hole and the inner diameter of the groove.
Preferably, the plunger hanger is provided with a plurality of liquid passing channels penetrating through the plunger hanger along the trend of the pump barrel.
Preferably, a cavity is formed in the piston, a partition plate for separating the cavity is arranged in the cavity, a first air hole is formed in the partition plate, a second air hole communicated with the piston is formed in the bottom of the piston, and an upper valve is arranged on the first air hole.
Preferably, a third air hole is formed in the bottom of the pump barrel, and a lower valve is arranged on the third air hole.
Preferably, a plurality of oil drain holes are formed in the side wall of the pump barrel from top to bottom, and the oil drain holes are uniformly arranged at intervals along the circumferential direction of the pump barrel.
Preferably, the pressure relief cartridge has an inner diameter that is greater than the outer diameters of the plunger hanger and the piston.
Preferably, a disjointer is provided on the sucker rod, the disjointer being located above the plunger hanger.
Compared with the prior art, the invention has the following technical effects:
1. when the tile sleeve plunger suspension device with the groove is arranged in the oil pipe and matched with the tile sleeve, the plunger is positioned in the pressure relief bin, and the oil drain hole on the pump barrel can be exposed to realize oil drain, so that the suspension type oil drain device can drain oil during pipe column lifting operation, thereby avoiding pollution to the environment caused by taking well liquid to the ground during pump inspection or well workover operation, and realizing cleaning operation.
2. The pressure release bin is internally provided with a cone transition plate with two open ends, the upper opening of the cone transition plate is connected with the lower end of the oil pipe and communicated with the oil pipe, the inner diameter of the upper opening is equal to the inner diameter of the oil pipe, and the inner diameter of the lower opening of the cone transition plate is larger than the inner diameter of the oil pipe; when the plunger hanger is lifted up to enter the pressure release bin, the limit ball can partially pop up the mounting hole under the action of the spring, and due to the existence of the cone transition plate, the plunger hanger can be contacted with the side wall of the arc cone transition plate in the upward moving process and move upwards along the side wall of the arc, so that the plunger hanger enters the oil pipe smoothly without barriers and is clamped in the groove, the limit effect on the plunger hanger is completed, the problem that the limit ball directly enters the oil pipe, the side wall of the oil pipe blocks or wears the limit ball, and the service life of the limit ball is influenced is avoided.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings that are necessary for the embodiments will be briefly described below, it being evident that the drawings in the following description are only some embodiments of the invention and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the present cone transition plate;
1, a sucker rod; 2. an oil pipe; 3. a tile sleeve; 4. a groove; 5. a cone transition plate; 6. a pressure relief bin; 7. a disjointing device; 8. a liquid passage; 9. a plunger hanger; 10. a limit ball; 11. a spring; 12. a mounting hole; 13. a pump cylinder; 14. upper valve; 15. an oil drain hole; 16. a plunger; 17. a lower valve; 18. an upper opening; 19. a lower opening; 20. an arcuate sidewall; 21. a partition plate; 22. and a second air hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
The invention aims to provide a suspension type oil drain device, which achieves the purpose of avoiding the pollution of the environment caused by the fact that well fluid is brought to the ground during the operation of checking a pump or repairing a well. In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1 to 2, a suspension type oil drain device comprises an oil pipe, a pressure relief bin, a pump cylinder and an oil pumping device, wherein the oil pipe, the pressure relief bin, the pump cylinder and the oil pumping device are sequentially communicated, the oil pumping device is arranged in the oil pipe and extends downwards into the pump cylinder, the oil pumping device comprises an oil pumping rod 1, a piston which is arranged at the bottom end of the oil pumping rod and can slide in the pump cylinder in a fitting manner, and a positioning device which is arranged on the oil pumping rod and is positioned above the piston, the positioning device comprises a plunger hanger which is sleeved on the outer wall of the oil pumping rod and can slide in the oil pipe in a sealing manner, and a tile sleeve 3 which is arranged on the inner wall of the oil pipe 2 and is provided with a groove 4, a plurality of pairs of mounting holes are symmetrically formed in the circumferential direction of the outer wall of the plunger hanger, a spring 11 in a compressed state is mounted in each mounting hole, and a limiting ball 10 is arranged at one end of the spring 11, which is far away from the oil pumping rod, and can be clamped in the groove along with the movement of the plunger hanger when the plunger hanger is lifted into the oil pipe; when the tile sleeve plunger suspension device with the groove is arranged in the oil pipe and matched with the tile sleeve, the plunger is positioned in the pressure relief bin, and the oil drain hole on the pump cylinder 13 can be exposed to realize oil drain, so that the suspension type oil drain device can drain oil during pipe column lifting operation, thereby avoiding pollution to the environment caused by taking well liquid to the ground during pump inspection or well workover operation, and realizing cleaning operation.
Referring to fig. 1 to 2, a cone transition plate 5 with two open ends and arc side walls is arranged in the pressure release bin, an upper opening 18 of the cone transition plate is connected with the lower end of the oil pipe and communicated with the oil pipe, the inner diameter of the upper opening is equal to the inner diameter of the oil pipe, and the inner diameter of a lower opening 19 of the cone transition plate is larger than the inner diameter of the oil pipe; when the plunger hanger is lifted up into the pressure release bin, the limiting ball can partially pop up the mounting hole 12 under the action of the spring, and due to the existence of the cone transition plate, the limiting ball can be contacted with the side wall of the arc cone transition plate in the upward moving process of the plunger hanger and move up along the side wall 20 of the arc, so that the plunger hanger enters into the oil pipe smoothly without barriers and is clamped in the groove, the limiting action of the plunger hanger is completed, the problem that the limiting ball directly enters into the oil pipe, the side wall of the oil pipe blocks or wears the limiting ball, and the service life of the limiting ball is influenced is avoided.
Referring to fig. 2, the cone transition plate is not contacted with the inner wall of the pressure relief bin, and a plurality of through holes for ventilation are formed in the cone transition plate; the problem that the plunger hanger is not pulled smoothly due to the fact that the air pressure in the pressure release bin 6 generated in the upward moving process of the plunger hanger is enhanced under the action of the cone transition plate and cannot be timely diffused into the whole pressure release bin is avoided, and the problem that the local air pressure is increased due to the fact that compressed air in the pulling process is diffused into the whole pressure release bin due to the arrangement of the through holes can be avoided.
Further, the outer diameter of the limiting ball is not larger than the inner diameter of the mounting hole and the inner diameter of the groove.
Referring to fig. 1, the plunger hanger 9 is provided with a plurality of fluid passages 8 extending through the plunger hanger along the direction of the pump barrel.
Referring to fig. 1, a cavity is formed in the piston, a partition 21 for partitioning the cavity is formed in the cavity, a first air hole is formed in the partition 21, a second air hole 22 communicated with the interior of the piston is formed in the bottom of the piston, and an upper valve 14 is arranged on the first air hole.
Referring to fig. 1, a third air hole is formed in the bottom of the pump barrel, and a lower valve 17 is arranged on the third air hole.
Referring to fig. 1, a plurality of drain holes 15 are provided on a sidewall of a pump cylinder from top to bottom, the drain holes 15 being uniformly spaced along a circumferential direction of the pump cylinder; the position of the oil drain hole should ensure: during normal oil extraction, no matter the plunger up-down stroke, the oil leakage hole corresponds to the side wall of the plunger, namely the plunger 16 seals the oil leakage hole, so that oil leakage can not occur; when the plunger is hung on the positioning device, the oil drain hole is positioned below the plunger 16, and oil is drained along the pressure relief bin and the oil drain hole through the liquid passing channel.
Further, the inner diameter of the pressure relief bin is larger than the outer diameters of the plunger hanger and the piston.
Referring to fig. 1, the sucker rod is provided with a disjointer 7, and the disjointer 7 is positioned above the plunger hanger; the disconnection of the sucker rod from the lower part of the plunger hanger and the like is facilitated.
The application process of the invention is as follows: when in operation, the sucker rod drives the plunger to move up and down, thus realizing oil extraction. When the pump is needed to be checked or the well is repaired, the sucker rod is lifted up, the plunger moves upwards, and when the positioning device is locked, the plunger is suspended in the pressure release bin, and the oil drain hole is positioned below the plunger at the moment, so that oil drain is realized. At this time, the oil pipe can be lifted out section by section, and finally the plunger is lifted out together with the pressure release bin.
The adaptation to the actual need is within the scope of the invention.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a suspension type bleeder, its characterized in that, is in including oil pipe, pressure release storehouse, pump barrel and the setting that communicate in proper order are in and extend downwards to pumping unit in the pump barrel, pumping unit includes the sucker rod, set up the sucker rod bottom can laminate gliding piston and setting up in the pump barrel and be in on the sucker rod and be located positioner of piston top, positioner is including the cover establish on the sucker rod outer wall and can seal gliding plunger hanger and set up on the oil pipe inner wall and set up fluted bush, a plurality of pairs of mounting holes have been seted up to the outer wall circumference symmetry of plunger hanger, the spring that is in compression state is installed to the mounting hole, the spring is kept away from all be provided with the spacing ball of one end of sucker rod, when the plunger hanger is lifted and is drawn into in the oil pipe, the spacing ball can block in along with the removal of plunger hanger in the recess.
2. The suspended oil drain device according to claim 1, wherein a cone transition plate with two open ends and an arc-shaped side wall is arranged in the pressure release bin, an upper opening of the cone transition plate is connected with the lower end of the oil pipe and communicated with the oil pipe, the inner diameter of the upper opening is equal to the inner diameter of the oil pipe, and the inner diameter of the lower opening of the cone transition plate is larger than the inner diameter of the oil pipe.
3. The hanging type oil drain device according to claim 2, wherein the cone transition plate is not in contact with the inner wall of the pressure relief bin, and a plurality of through holes for ventilation are formed in the cone transition plate.
4. A hanging oil drain according to claim 1, wherein the outer diameter of the limit ball is not greater than the inner diameter of the mounting hole and the inner diameter of the recess.
5. The suspended oil drain according to claim 1, wherein the plunger hanger is provided with a plurality of liquid passages penetrating through the plunger hanger along the direction of the pump barrel.
6. The hanging type oil drain device according to claim 1, wherein a cavity is formed in the piston, a partition plate for separating the cavity is arranged in the cavity, a first air hole is formed in the partition plate, a second air hole communicated with the piston is formed in the bottom of the piston, and an upper valve is arranged on the first air hole.
7. The hanging type oil drain device according to claim 6, wherein a third air hole is formed in the bottom of the pump barrel, and a lower valve is arranged on the third air hole.
8. The hanging type oil drain device according to claim 6, wherein a plurality of oil drain holes are formed in the side wall of the pump barrel from top to bottom, and the oil drain holes are uniformly arranged at intervals along the circumferential direction of the pump barrel.
9. A hanging oil drain according to claim 1, wherein the pressure relief cartridge has an inner diameter that is larger than the outer diameters of the plunger hanger and the piston.
10. A hanging oil drain according to claim 1, wherein the sucker rod is provided with a decoupler, the decoupler being located above the plunger hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311228557.6A CN117027713A (en) | 2023-09-21 | 2023-09-21 | A hanging oil drain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311228557.6A CN117027713A (en) | 2023-09-21 | 2023-09-21 | A hanging oil drain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117027713A true CN117027713A (en) | 2023-11-10 |
Family
ID=88635704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311228557.6A Pending CN117027713A (en) | 2023-09-21 | 2023-09-21 | A hanging oil drain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117027713A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202645953U (en) * | 2012-05-14 | 2013-01-02 | 中国石油化工股份有限公司 | Immersion rod type heavy oil pump |
| CN204419527U (en) * | 2014-12-20 | 2015-06-24 | 山东墨龙石油机械股份有限公司 | A kind of guiding valve sand control suction pump |
| CN106014319A (en) * | 2016-06-30 | 2016-10-12 | 西南石油大学 | Horizontal type undersea Christmas tree composite plug device |
| US20170191356A1 (en) * | 2014-06-25 | 2017-07-06 | Raise Production Inc. | Rod pump system |
| CN218151385U (en) * | 2022-08-16 | 2022-12-27 | 张宝奎 | Two-stage cylinder oil drainage pump |
-
2023
- 2023-09-21 CN CN202311228557.6A patent/CN117027713A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202645953U (en) * | 2012-05-14 | 2013-01-02 | 中国石油化工股份有限公司 | Immersion rod type heavy oil pump |
| US20170191356A1 (en) * | 2014-06-25 | 2017-07-06 | Raise Production Inc. | Rod pump system |
| CN204419527U (en) * | 2014-12-20 | 2015-06-24 | 山东墨龙石油机械股份有限公司 | A kind of guiding valve sand control suction pump |
| CN106014319A (en) * | 2016-06-30 | 2016-10-12 | 西南石油大学 | Horizontal type undersea Christmas tree composite plug device |
| CN218151385U (en) * | 2022-08-16 | 2022-12-27 | 张宝奎 | Two-stage cylinder oil drainage pump |
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