CN220059527U - Rod pump tube inspection degassing sand setting device - Google Patents
Rod pump tube inspection degassing sand setting device Download PDFInfo
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- CN220059527U CN220059527U CN202321333926.3U CN202321333926U CN220059527U CN 220059527 U CN220059527 U CN 220059527U CN 202321333926 U CN202321333926 U CN 202321333926U CN 220059527 U CN220059527 U CN 220059527U
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- sand setting
- pipe
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- side wall
- liquid inlet
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- 239000004576 sand Substances 0.000 title claims abstract description 42
- 238000007689 inspection Methods 0.000 title claims abstract description 24
- 238000007872 degassing Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000005086 pumping Methods 0.000 abstract description 7
- 239000003129 oil well Substances 0.000 abstract description 6
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 33
- 239000010779 crude oil Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Abstract
The utility model relates to the technical field of manufacturing equipment in petroleum industry, in particular to a rod pump tube inspection degassing sand setting device, which comprises an annular channel formed between an inner tube and an outer tube; the lower end of the annular channel is connected with a sand setting pipe; the side wall of the outer tube is provided with a first liquid inlet, and the outer wall of the inner tube corresponding to the first liquid inlet is provided with a spiral sheet; a second liquid inlet is formed in the side wall of the inner tube below the spiral sheet outlet; a movable limiting sliding sleeve is sleeved in the inner pipe corresponding to the second liquid inlet hole in a sealing manner; an upper valve seat matched with the upper valve ball for sealing is arranged at the upper end of the sliding sleeve; a lower valve seat matched with the lower valve ball for sealing is arranged below the sliding sleeve; the upper valve seat is provided with an upper through hole which is matched with the lower valve ball to pass through from top to bottom. The utility model has the functions of checking the tightness of the pipe column, degassing and cyclone sand setting, can be applied to pipe checking operation of a rod pump, is especially suitable for oil wells with large gas and sand, and improves the pumping efficiency of an oil pump.
Description
Technical Field
The utility model relates to the technical field of manufacturing equipment in petroleum industry, in particular to a rod pump tube inspection degassing sand setting device.
Background
The information disclosed in the background of the utility model is only for enhancement of understanding of the general background of the utility model and is not necessarily to be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
The oil field pump inspection operation refers to the operation of reducing the production efficiency or even stopping the production caused by various adverse factors (such as sand, water, gas invasion, etc.) of the oil pump or adjusting the production parameters due to the change of the production conditions, and the operation of eliminating faults or adjusting the production parameters is called pump inspection operation. The method comprises the steps of replacing, deepening or lifting the pump hanging depth, changing the pump diameter, removing sand clamps and wax clamps of the oil pump, breaking and removing the sucker rod, wearing parts and the like.
With the development of oil fields entering the middle and later stages, the extraction degree of oil wells is increased, the formation pressure is reduced, so that the formation fluid supply is reduced, the production requirements of a tubular pump and an electric pump for pumping oil can not be met, and the production cost is increased due to the large workload of the later maintenance operation, so that the requirement of the development of the era is not met. In the later pump inspection process, the rod pump can be used for taking out the oil pump cylinder and the piston only by lifting out the oil pumping rod and replacing the oil pumping cylinder and the piston to finish the pump inspection operation, so that the rod pump is increasingly applied to oil well production.
The rod pump comprises a tubing string, an oil pipe, a rod pump seat, an oil pipe and a bell mouth, wherein the tubing string is combined with the oil pipe, the oil pipe and the bell mouth from top to bottom; the sucker rod is combined with a polish rod, a sucker rod and a rod pump from top to bottom. At present, the tubular column mainly has the following problems:
(1) Because the tubular column is a bell mouth, the tubular column is communicated with an oil jacket, and the tightness of the tubular column cannot be independently verified;
(2) The dissolved gas in the crude oil is separated out prematurely, so that the filling degree of the oil pump is reduced, even an airlock is caused, and the pump efficiency is reduced;
(3) In addition, some stratum is consolidated and loose, and the production pressure difference is too large, so that the stratum is often sanded, the abrasion of an oil pump is aggravated, the pump is blocked, and the normal production of an oil well is influenced;
(4) Because the rod pump seat is in the well along with oil pipe down, only the oil pipe pressure test above the pump seat can be performed by the rod pump seat with the rod pump down, once the pressure test is unqualified, the oil pipe above the rod and the pump seat must be lifted out for inspection and replacement to be put down again to the pressure test, so that the pump inspection period is prolonged, the operation cost is increased, and the labor intensity of workers is increased.
The prior art includes the following patents relating to oilfield pump testing equipment:
CN208633804U, a pumping well head environmental protection device for pumping operation of oil extraction well, including oil extraction well head, the sucker rod is installed in the well pipe in the cooperation, the pumping operation well head environmental protection device is connected through well head coupling pipe buckle on oil extraction well pipe, its structure is the intermediate layer sleeve pipe that comprises inner tube and outer tube, the upper and lower port of its intermediate layer chamber is sealed, the equipartition is provided with the high-pressure water nozzle that the spout is decurrent on the inner tube pipe wall, the upper portion of outer tube is provided with high-pressure water interface, the lower extreme of inner tube is provided with the reducing pipe, the screwed pipe that sets up at the lower extreme of reducing pipe is connected with oil extraction well pipe through well head coupling pipe buckle, be provided with negative pressure suction interface on the reducing pipe, negative pressure suction interface is connected with negative pressure suction device through the pipeline. The problem of the pump rod bringing a large amount of wax and some crude oil to the ground is solved. However, it does not solve the problem of oil de-gassing and sand setting.
CN102102657A, rod-type oil-well pump locking device, have pull rod, pump seat, the sealed dabber in the pump seat, valve rod, locking piece, the spring that rises in the sealed dabber, the lower extreme of valve rod is connected with pump cylinder, plunger respectively, and the pull rod is arranged in the sealed dabber, and the pull rod is connected with the plunger and stretches out outside the pump cylinder, and open the peripheral wall of sealed dabber upper end has the recess, and locking piece one end inlays in the recess, and the locking piece inboard is equipped with the spring that rises, and the valve rod has protruding step. The locking piece of this patent can be designed into rectangular shape, and the upper end outside has the lug, and the lug is matchd with the recess of sealed dabber, and the upper end inboard has the spring that rises, and the lower extreme has pointed inclined plane, pointed inclined plane and valve rod boss step phase-match. This patent has reduced the degree of difficulty of examining the pump action, can not solve in the fluid gas and cause the problem that reduces the pump efficiency, can not separate out the sand that mingles with in the fluid and cause the problem of oil pump wearing and tearing moreover.
CN205047169U, an environmental protection platform for oil field inspection pump and well repair operation. The environment-friendly platform comprises at least four platform supporting legs, a supporting leg connecting beam is connected between two adjacent platform supporting legs, the supporting leg connecting beam is connected with the platform supporting legs through a mortise, a platform cross beam is connected between two adjacent platform supporting legs above the supporting leg connecting beam, a platform pedal is paved on the platform cross beam, through holes are uniformly distributed on the platform pedal, platform guardrails are vertically inserted on the periphery of the platform cross beam, the center of the environment-friendly platform corresponds to a wellhead, a flange connecting pipe is connected to a sleeve flange of the wellhead, the flange connecting pipe extends to the upper side of the platform pedal, and a liquid collecting tank is fixed on the flange connecting pipe below the platform pedal. The environment-friendly platform consists of two parts, namely an environment-friendly platform without bolt connection and a frame structure type environment-friendly platform and a flange connection type liquid accumulation groove, wherein the environment-friendly platform and the flange connection type liquid accumulation groove are in non-contact, so that the safety of operators on the platform is ensured while the effective collection of dirty oil and sewage is ensured. The problem that the pump efficiency is lower and sand is discharged to cause the abrasion of the oil pump to be aggravated and the pump to be blocked caused by the premature precipitation of the dissolved gas in the oil cannot be solved by the patent.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a rod pump tube inspection degassing and sand setting device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the rod pump tube inspection degassing and sand setting device comprises an annular channel formed between an inner tube and an outer tube; the lower end of the annular channel is connected with a sand setting pipe; the side wall of the outer tube is provided with a first liquid inlet, and the outer wall of the inner tube corresponding to the first liquid inlet is provided with a spiral sheet; a second liquid inlet is formed in the side wall of the inner tube below the spiral sheet outlet; a movable limiting sliding sleeve is sleeved in the inner pipe corresponding to the second liquid inlet hole in a sealing manner; an upper valve seat matched with the upper valve ball for sealing is arranged at the upper end of the sliding sleeve; a lower valve seat matched with the lower valve ball for sealing is arranged below the sliding sleeve; the upper valve seat is provided with an upper through hole which is matched with the lower valve ball to pass through from top to bottom.
Preferably, the outer side wall of the upper end of the inner pipe is connected with an upper joint in a sealing way, the outer side wall of the upper joint is connected with one end of a pressing cap in a sealing way, and the inner side wall of the other end of the pressing cap is connected with the outer side wall of the outer pipe in a sealing way; the inner pipe side wall and the sliding sleeve outer side wall are limited by pins.
Preferably, the outer side wall of the sliding sleeve is provided with a first sealing ring and a second sealing ring which are respectively positioned above and below the second liquid inlet; the pin is correspondingly arranged between the first sealing ring and the second sealing ring.
Preferably, the lower valve seat is arranged on the lower joint sealing the inner pipe in a sealing and sliding manner, a spring is arranged between the lower valve seat and the lower joint, and the spring is arranged in the lower joint through a base.
Preferably, the lower valve seat and the lower joint are provided with a lower through hole which is overlapped with the central axis of the upper through hole, and the lower through hole is overlapped with the central axis of the inner pipe.
Preferably, the lower through hole coincides with the central axis of the spring, and the central axes of the inner tube and the outer tube coincide.
Preferably, the inner tube comprises an upper inner tube and a lower inner tube, and the upper inner tube and the lower inner tube are connected through threads; the second liquid inlet hole is formed near the threaded connection position of the upper inner pipe and the lower inner pipe.
Preferably, the pin, the first sealing ring and the second sealing ring are all arranged on the upper inner pipe or the lower inner pipe in a matched manner; the pressure cap is respectively in threaded connection with the upper joint and the outer pipe; the inner pipe is respectively in threaded connection with the upper joint and the lower joint.
Preferably, the upper valve ball is a big steel ball, and the lower valve ball is a small steel ball; and connecting threads are arranged at the outer end parts of the upper joint and the lower joint.
The beneficial effects are that: the utility model has the functions of checking the tightness of the pipe column, degassing and cyclone sand setting, can be applied to pipe checking operation of a rod pump, is especially suitable for oil wells with large gas and sand discharge, avoids the condition that the pipe checking can be performed only after the sucker rod is put down, can check the pipe in advance, reduces the occurrence of reworking procedures, has simple operation, convenience and practicability and strong adaptability, can improve the pump efficiency and operation time efficiency of an oil pump, avoids the accident of sand clamping a piston, and reduces the operation construction cost and the labor intensity of workers.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
in the figure: 1. the valve comprises an upper joint, a pressure cap, a first liquid inlet, an outer tube, an upper valve ball, a lower valve ball, a spring, a lower joint, a spiral sheet, an inner tube, an upper valve seat, a first sealing ring, a sliding sleeve, a second liquid inlet, a pin and a second sealing ring, 17, a lower valve seat and a base, wherein the upper joint, the pressure cap and the upper joint are arranged in the upper joint, the outer tube, the upper valve ball, the lower valve ball, the spring, the lower joint, the spiral sheet and the spiral sheet are arranged in the upper joint, the inner tube and the upper valve seat are arranged in the upper joint, the first sealing ring, the sliding sleeve and the upper joint.
Detailed Description
The utility model will be further described with reference to specific examples and figures.
FIG. 1 shows a rod pump tube inspection degassing sand setting device, comprising an annular channel formed between an inner tube 10 and an outer tube 4; the lower end of the annular channel is connected with a sand setting pipe; the side wall of the outer tube 4 is provided with a first liquid inlet hole 3, crude oil of mixed sand enters the annular channel through the first liquid inlet hole 3, the outer wall of the inner tube 10 corresponding to the first liquid inlet hole 3 is provided with a spiral sheet 9, the side wall of the inner tube 10 below the outlet of the spiral sheet 9 is provided with a second liquid inlet hole 14, centrifugal separation and secondary gravity slip separation are carried out on the crude oil of mixed sand through the spiral sheet 9, so that the sand is accelerated downwards, passes through the second liquid inlet hole 14 and falls into a sand settling tube to be collected, the crude oil has high temperature, small density, near atomization and light weight, and is pumped out through an oil pump through the second liquid inlet hole 14; a sliding sleeve 13 with a movable limit is hermetically sleeved in the inner pipe 10 corresponding to the second liquid inlet hole 14; an upper valve seat 11 matched with the upper valve ball 5 for sealing is arranged at the upper end of the sliding sleeve 13; a lower valve seat 17 matched with the lower valve ball 6 for sealing is arranged below the sliding sleeve 13; the upper valve seat 11 is provided with an upper through hole which is matched with the lower valve ball 6 to pass through from top to bottom.
In a preferred further embodiment, an upper joint 1 is connected to the outer side wall of the upper end of the inner tube 10 in a sealing manner, the outer side wall of the upper joint 1 is connected to one end of a press cap 2 in a sealing manner, the inner side wall of the other end of the press cap 2 is connected to the outer side wall of the outer tube 4 in a sealing manner, and the press cap 2 is a tube sleeve which coincides with the central axes of the inner tube 10 and the outer tube 4; the side wall of the inner tube 10 and the outer side wall of the sliding sleeve 13 are limited by pins 15.
In a preferred further embodiment, the outer side wall of the sliding sleeve 13 is provided with a first sealing ring 12 and a second sealing ring 16 respectively above and below the second liquid inlet 14; the pin 15 is correspondingly arranged between the first sealing ring 12 and the second sealing ring 16.
In a preferred further embodiment, the lower valve seat 17 is arranged on the lower joint 8 sealed to the inner tube 10 in a sealing and sliding manner, a spring 7 is arranged between the lower valve seat 17 and the lower joint 8, and the spring 7 is arranged in the lower joint 8 through a base 18.
In a preferred further embodiment, the lower valve seat 17 and the lower joint 8 are provided with a lower through hole which is arranged to coincide with the central axis of the upper through hole, and the lower through hole is arranged to coincide with the central axis of the inner tube 10.
In a preferred further embodiment, the lower through hole coincides with the central axis of the spring 7, and the central axes of the inner tube 10 and the outer tube 4 coincide.
In a preferred further embodiment, the inner tube 10 comprises an upper inner tube 10 and a lower inner tube 10, the upper inner tube 10 and the lower inner tube 10 being threadedly connected; the second liquid inlet hole 14 is formed near the threaded connection between the upper inner tube 10 and the lower inner tube 10, so as to facilitate the installation of the sliding sleeve 13 and perform sealing and limiting operations on the sliding sleeve.
In a preferred further embodiment, the pin 15, the first sealing ring 12 and the second sealing ring 16 are all disposed on the upper inner tube 10 or the lower inner tube 10 in a matched manner; the press cap 2 is respectively in threaded connection with the upper joint 1 and the outer tube 4; the inner pipe 10 is respectively in threaded connection with the upper joint 1 and the lower joint 8.
In a preferred embodiment, the upper valve ball 55 is a large steel ball, the lower valve ball 6 is a small steel ball, the upper valve seat 11 is a large ball seat, and the lower valve seat 17 is a small ball seat; the outer end parts of the upper joint 1 and the lower joint 8 are respectively provided with connecting threads.
In another example, the upper joint 1 and the lower joint 8 are used for connecting a tool for a well such as an oil pipe, in particular, one end of the upper joint 1 is used for connecting an upper pipe column, and the other end is connected with an inner pipe 10; the pressing cap 2 is used for connecting the inner tube 10 and the outer tube 4, the outer wall of the upper joint 1 is connected with one end of the pressing cap 2 in a sleeve manner, and the other end of the pressing cap 2 is connected with the outer tube 4; the lower joint 8 is used for connecting a sand setting pipe which is used for collecting separated sand;
the outer tube 4 is used for connecting a tool and protecting a degassing sand setting part; the degassing and sand setting part comprises a spiral sheet 9 arranged on the outer wall of the inner pipe 10, and the spiral sheet 9 is used for degassing and sand setting;
the first liquid inlet hole 3 is an inlet for fluid to enter the annular channel, the temperature of crude oil entering the annular channel is higher and is close to atomization, gas is separated out before entering the first liquid inlet hole 3, the crude oil and sand are guided by the spiral sheet 9 together, the spiral downward acceleration motion is realized, the density and the weight of the sand are large, the downward acceleration is realized all the time in the motion process, and the nearly atomized crude oil enters the inner tube through the oil pump and the second liquid inlet hole 14, so that the crude oil is extracted.
The second liquid inlet hole 14 is a liquid inlet channel for the well fluid to enter the oil pump after degassing and sand setting, the first sealing ring 12 and the second sealing ring 16 are used for sealing the second liquid inlet hole 14 in cooperation with the sliding sleeve 13, the pin 15 is used for fixing the sliding sleeve 13, the pin 15 is also sealed between the first sealing ring 12 and the second sealing ring 16, and the small steel ball is matched with the small ball seat for high-pressure test tube; the big steel ball is used for sealing the sliding sleeve 13, when the big steel ball falls down to the upper end face of the sliding sleeve, the pin is sheared under the action of gravity or external force, the sliding sleeve 13 slides to the position of the small ball seat, the second liquid inlet hole 14 is communicated, and the liquid inlet channel is opened.
The small steel ball is matched with the small ball seat to form a high-pressure test tube, and the base 18 is used for supporting and installing the spring 7;
the spring 7 is used for bouncing the small steel ball after the tube inspection is qualified, and reducing the air pressure between the small ball seat and the big ball seat in the inner tube 10 through the lower through hole, so that the sedimentation of the big steel ball is facilitated when the big steel ball is put in; the big ball seat is used as a big steel ball sealing seat.
In the present specification, each embodiment is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments are only required to be referred to each other.
The terms "upper", "lower", "outside", "inside", and the like in the description and in the claims of the present utility model and in the above drawings, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The rod pump tube inspection degassing and sand setting device comprises an annular channel formed between an inner tube and an outer tube; the method is characterized in that:
the lower end of the annular channel is connected with a sand setting pipe;
the side wall of the outer tube is provided with a first liquid inlet, and the outer wall of the inner tube corresponding to the first liquid inlet is provided with a spiral sheet;
a second liquid inlet is formed in the side wall of the inner tube below the spiral sheet outlet;
a movable limiting sliding sleeve is sleeved in the inner pipe corresponding to the second liquid inlet hole in a sealing manner;
an upper valve seat matched with the upper valve ball for sealing is arranged at the upper end of the sliding sleeve;
a lower valve seat matched with the lower valve ball for sealing is arranged below the sliding sleeve;
the upper valve seat is provided with an upper through hole which is matched with the lower valve ball to pass through from top to bottom.
2. The rod pump tube inspection degassing and sand setting device according to claim 1, wherein:
the outer side wall of the upper end of the inner pipe is connected with an upper joint in a sealing way, the outer side wall of the upper joint is connected with one end of a pressing cap in a sealing way, and the inner side wall of the other end of the pressing cap is connected with the outer side wall of the outer pipe in a sealing way;
the inner pipe side wall and the sliding sleeve outer side wall are limited by pins.
3. The rod pump tube inspection degassing and sand setting device according to claim 2, wherein:
the outer side wall of the sliding sleeve is provided with a first sealing ring and a second sealing ring which are respectively positioned above and below the second liquid inlet;
the pin is correspondingly arranged between the first sealing ring and the second sealing ring.
4. The rod pump tube inspection degassing and sand setting device according to claim 2, wherein:
the lower valve seat can be arranged on the inner side of the lower joint for sealing the inner pipe in a sealing and sliding manner, a spring is arranged between the lower valve seat and the lower joint, and the spring is arranged in the lower joint through a base.
5. The rod pump tube inspection degassing and sand setting device according to claim 4, wherein:
the lower valve seat and the lower connector are provided with a lower through hole which is overlapped with the central axis of the upper through hole, and the lower through hole is overlapped with the central axis of the inner pipe.
6. The rod pump tube inspection degassing and sand setting device according to claim 5, wherein:
the lower through hole coincides with the central axis of the spring, and the central axes of the inner tube and the outer tube coincide.
7. A rod pump tube inspection degassing and sand setting device according to claim 3, wherein:
the inner tube comprises an upper inner tube and a lower inner tube which are connected through threads;
the second liquid inlet hole is formed near the threaded connection position of the upper inner pipe and the lower inner pipe.
8. The rod pump tube inspection degassing and sand setting device according to claim 7, wherein:
the pin, the first sealing ring and the second sealing ring are all arranged on the upper inner pipe or the lower inner pipe in a matched mode;
the pressure cap is respectively in threaded connection with the upper joint and the outer pipe;
the inner pipe is respectively in threaded connection with the upper joint and the lower joint.
9. The rod pump tube inspection degassing and sand setting device according to claim 7, wherein:
the upper valve ball is a big steel ball, and the lower valve ball is a small steel ball;
and connecting threads are arranged at the outer end parts of the upper joint and the lower joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321333926.3U CN220059527U (en) | 2023-05-29 | 2023-05-29 | Rod pump tube inspection degassing sand setting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321333926.3U CN220059527U (en) | 2023-05-29 | 2023-05-29 | Rod pump tube inspection degassing sand setting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059527U true CN220059527U (en) | 2023-11-21 |
Family
ID=88759433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321333926.3U Active CN220059527U (en) | 2023-05-29 | 2023-05-29 | Rod pump tube inspection degassing sand setting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059527U (en) |
-
2023
- 2023-05-29 CN CN202321333926.3U patent/CN220059527U/en active Active
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