CN116988768B - A tube-rod oil pump and an oil pumping system having the same - Google Patents
A tube-rod oil pump and an oil pumping system having the sameInfo
- Publication number
- CN116988768B CN116988768B CN202311169894.2A CN202311169894A CN116988768B CN 116988768 B CN116988768 B CN 116988768B CN 202311169894 A CN202311169894 A CN 202311169894A CN 116988768 B CN116988768 B CN 116988768B
- Authority
- CN
- China
- Prior art keywords
- oil
- pump
- pipe
- plunger
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (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 pipe rod type oil pump and an oil pumping system with the same, wherein the oil pump comprises a pump barrel, a plunger, a traveling valve and a continuous oil pipe, a hydraulic oil pipe anchor is connected to the upper edge of the bottom fixed valve of the outer side wall of the pump barrel, the plunger is arranged inside the pump barrel, a limit unidirectional elastic sheet is fixedly connected to the edge of the bottom end of the inner side wall of the plunger, the traveling valve penetrates through the limit unidirectional elastic sheet and is clamped in a bottom valve seat of the plunger, the oil pumping system comprises the oil pump, an up-down reciprocating power continuous pipe, a rope hanger, a hollow polished rod, a rubber gate and a packing box, the oil pump is arranged in an oil well, the hollow polished rod is connected to the top end of the continuous oil pipe, one end of the rope hanger is connected with the up-down reciprocating power hollow polished rod, and the four-way joint, the rubber gate and the packing box are sequentially fixed on a wellhead.
Description
Technical Field
The invention relates to the technical field of oil field mechanical oil extraction, in particular to a pipe rod type oil pump and an oil pumping system with the same.
Background
The oil pump is a common underground device driven by the oil pumping unit to pump the crude oil in the well to the ground. The common oil pump mainly comprises four parts of a pump barrel, a suction valve, a piston and a discharge valve. According to the fixed mode of the oil-well pump in the pit, the oil-well pump can be divided into a tubular pump and a rod pump, the maintenance of the tubular pump and the rod pump is difficult, a special maintenance vehicle is needed, the oil extraction efficiency is reduced, and the pollution of crude oil leakage is increased.
Currently, the most used well repair equipment in underground operation is a vehicle-mounted special well repair machine. The equipment has a plurality of defects, the vertical shelf is influenced by the environment and well sites at ordinary times, the energy consumption is high, the pollution is large, and under the condition that the energy price is continuously increased, the traditional well repairing equipment taking the diesel engine as power has higher and higher operation cost. Cost saving in oilfield exploitation and daily operation has become a heart rate calibration task that global oilfield enterprises must complete. Advanced electric workover rig and hydraulic energy storage workover rig have been developed in China at present, and although the energy conservation and emission reduction of the workover rig is realized by the workover rig, a plurality of uncertain factors still exist when the underground operation mode is not changed.
How to change the structure and the pumping mode of the existing oil pump, and reduce the overhauling cost and the influence of environmental pollution.
Therefore, how to provide a rod-type oil pump and an oil pumping system with the same is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a tubular rod type oil pump and an oil pumping system with the same, which change the traditional tubular pump and rod type pump structure, and replace the original sucker rod with a continuous oil pipe, thereby facilitating subsequent overhaul, having high oil extraction efficiency and safe and environment-friendly operation.
In order to achieve the purpose, the invention adopts the following technical scheme that the pipe rod type oil well pump comprises:
the oil inlet valve is fixedly connected to the bottom end of the inner side of the pump cylinder, and the edge of the bottom of the outer side wall of the pump cylinder is connected with the hydraulic oil pipe anchor;
the plunger is inserted into the pump cylinder, and the edge of the bottom end of the inner side wall of the plunger is fixedly connected with a limiting unidirectional elastic sheet;
the traveling valve penetrates through the limiting unidirectional elastic sheet and is clamped in the bottom valve seat of the plunger;
and the bottom end of the continuous oil pipe is fixedly connected with the top end of the plunger, and the top end of the continuous oil pipe is positioned at the outer side of the pump cylinder.
The invention has the advantages that the original mechanical oil pump structure is changed, the continuous oil pipe is utilized to replace the sucker rod, the continuous oil pipe provides reciprocating lifting force for the hollow plunger and plays a role of a conveying oil way, the pump body can be brought into a well by using the continuous oil pipe, the pump body is fixed at a preset depth of a sleeve in the oil well by a hydraulic oil pipe anchor, the underground structure is not provided with the oil pipe, the pumping and the pumping are completed by using a continuous oil pipe vehicle during maintenance operation, the whole pumping operation can be completed by lifting and descending the continuous oil pipe once, the use is convenient, the specific oil pumping process is that the volume of a pump cavity below the plunger is increased, the pressure is reduced, an oil inlet valve is opened under the action of up-down pressure difference, crude oil enters a lower pump cavity, meanwhile, a traveling valve is closed under the action of up-down pressure difference, and the hollow plunger moves downwards during the down stroke to squeeze the crude oil between the oil inlet valve and the traveling valve. The oil inlet valve is closed passively under the action of pressure difference, the traveling valve is opened automatically under pressure, and crude oil in the lower pump cavity is discharged to the ground through the hollow plunger and the internal channel of the continuous oil pipe, so that the oil extraction process is completed.
Preferably, the top end of the pump cylinder is contracted, a hollow transition pull rod is connected between the continuous oil pipe and the hollow plunger, and the outer side wall of the hollow transition pull rod is in dynamic sealing sliding connection with the top end opening of the pump cylinder.
The hollow transition pull rod has the technical effects that the outer surface is smooth, and the dynamic sealing sliding process in the pump cylinder opening can be smoothly realized, and the hollow transition pull rod transits the hollow plunger and the continuous oil pipe.
Preferably, a slit vent hole is formed in the top edge of the outer side wall of the pump cylinder.
The technical effect that produces is that in the reciprocating motion process of hollow plunger, utilize the slit ventilation hole to realize the pressure balance of hollow plunger top section and pump barrel inside, hollow plunger and pump barrel inside wall are the sliding connection that moves seal.
Preferably, the hydraulic tubing anchor is a hydraulic bidirectional slip tubing anchor, and the hydraulic tubing anchor is positioned between the traveling valve and the oil inlet valve.
The hydraulic bidirectional slip tubing anchor has the technical effects that the hydraulic bidirectional slip tubing anchor can be used for realizing the position fixation of the pump body, the anchoring is reliable, the stability is good, and the oil extraction process is ensured.
Preferably, the limiting unidirectional spring plates are provided with a plurality of groups and are respectively fixed on the inner side wall of the hollow plunger, the limiting spring plates are positioned on the same horizontal plane, and the limiting unidirectional spring plates are of a unidirectional spring plate structure and downwards pass through the traveling valve.
The technical effect that the one-way clamping limit of the traveling valve is realized by utilizing the limit one-way elastic sheet, the valve ball of the traveling valve is put into the continuous oil pipe, passes through the limit one-way elastic sheet and is clamped on the valve seat.
The invention also discloses an oil pumping system which comprises an oil well pump, an up-and-down reciprocating power continuous pipe, a rope hanger, a hollow polished rod, a rubber gate, a packing box and a four-way joint, wherein the oil well pump is positioned in an oil well, the hollow polished rod is fixedly connected to the top end of the continuous oil pipe, one end of the rope hanger is connected with the up-and-down reciprocating power continuous pipe, the four-way joint is fixed at a wellhead of the oil well, the rubber gate is fixed on the four-way joint, the packing box is fixed at the top of the rubber valve, and the hollow polished rod is in dynamic sealing sliding connection with the packing box.
The invention has the beneficial effects that the novel oil pump is utilized to complete the oil extraction process, the overhaul is convenient, the overhaul cost is low, the diameter of the oil delivery pipe is increased by directly using the continuous oil pipe, the oil extraction efficiency is high, and the use is convenient.
Preferably, the top of hollow polished rod is equipped with out oily elbow, the fluid in the oil-well pump is through coiled tubing, hollow polished rod and by out oily elbow discharge.
The technical effect that produces from this is that the lateral wall of hollow polished rod is smooth to guarantee continuous oil pipe's smooth ascending and descending process, reduce the resistance of external well head sealing department.
Drawings
FIG. 1 is a block diagram of a rod pump of the present invention;
FIG. 2 is an enlarged view of a portion of a rod pump according to the present invention;
FIG. 3 is a schematic diagram of an oil pumping system of the present invention.
The hydraulic oil pipe comprises a pump cylinder 1, an oil inlet valve 2, a hydraulic oil pipe anchor 3, a hollow plunger 4, a limit reed 5, a traveling valve 6, a continuous oil pipe 7, a hollow transition pull rod 8, a sealing colloid 9, a slit vent 10, an up-and-down reciprocating power continuous rod 11, a rope hanger 12, a hollow polish rod 13, a glue valve 14, a packing box 15, a four-way joint 16, an oil layer 17, a sleeve 18 and an oil outlet elbow 19.
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.
Referring to fig. 1 to 2 of the drawings, a rod pump according to an embodiment of the present invention includes:
the pump cylinder 1, the pump cylinder 1 has certain length requirement, in order to meet the oil production of a cycle lifting stroke, the inboard bottom fixedly connected with oil inlet valve 2, the oil inlet valve is a fixed check valve too, play the role of opening and closing the oil circuit, utilize pressure differential to open or close automatically, the crude oil can only enter the pump cavity through the oil inlet valve, the lateral wall bottom edge of the pump cylinder 1 has hydraulic tubing anchor 3, the hydraulic tubing anchor can realize its and oil well internal sleeve-pipe fixation through the external loading equipment;
the hollow plunger 4 is slidably connected in the pump cylinder 1, the hollow plunger is used for conveying oil, the limit reed 5 is fixedly connected to the edge of the bottom end of the inner side wall of the hollow plunger 4, and the limit reed is used for limiting the position of the traveling valve;
The traveling valve 6, the traveling valve 6 is also called a discharge valve, penetrates through the limiting unidirectional spring piece 5 and is clamped at the bottom end of the hollow plunger 4;
And a hollow transition pull rod 8 is connected between the bottom end of the continuous oil pipe 7 and the top end of the hollow plunger 4, and is slidably connected in the pump cylinder, and the hollow transition pull rod plays a role in transiting the central plunger and the continuous oil pipe.
In other embodiments, the top end of the pump cylinder 1 is shrunk, the outer side wall of the hollow transition pull rod 8 is in dynamic seal sliding connection with the top end opening of the pump cylinder 1, and a seal colloid 9 is arranged at the top end opening of the pump cylinder to compensate for a gap in the sliding process of the hollow transition pull rod, so that a sealing effect is achieved.
In other embodiments, the top edge of the outer side wall of the pump cylinder 1 is provided with a slit ventilation hole 10, so that the pressure stabilization balance of the plunger in the pump cylinder is realized.
In other embodiments, the hydraulic tubing anchor 3 is a hydraulic bi-directional slip tubing anchor, the hydraulic tubing anchor 3 being located between the traveling valve 6 and the oil intake valve 2.
In other embodiments, the limiting unidirectional spring 5 has a plurality of groups and is respectively fixed on the inner side wall of the hollow plunger 4, the plurality of groups of limiting spring 5 are located on the same horizontal plane, the limiting unidirectional spring 5 is of a unidirectional spring structure and is downwards released through the traveling valve 6, and the unidirectional spring structure has various designs, which can be variable-thickness spring plates.
Referring to fig. 3, the invention also discloses a pumping system, which comprises an oil pump, an up-and-down reciprocating power continuous pipe 11 (pumping unit), a rope hanger 12, a hollow polished rod 13, a rubber valve 14, a packing box 15 and a four-way joint 16, wherein the oil pump is positioned in an oil well, the hollow polished rod 13 is fixedly connected to the top end of the continuous oil pipe 7, one end of the rope hanger 12 is connected with the up-and-down reciprocating power continuous pipe 11, the other end is connected with the top end of the hollow polished rod 13, the four-way joint 16 is fixed at the wellhead of the oil well, the rubber gate 14 is fixed on the four-way joint 16, the packing box 15 is fixed at the top of the rubber valve 14, and the hollow polished rod 13 is in movable sealing sliding connection with the packing box 15.
Specifically, the top of hollow polished rod 13 is equipped with the oil outlet elbow, and the fluid in the oil-well pump passes through coiled tubing 7, hollow polished rod 13 and is discharged by the oil outlet elbow.
The invention uses the novel pipe rod type oil pump, the pump can be brought into the well by using the continuous oil pipe and anchored at the preset depth of the sleeve through the hydraulic pressure, the hydraulic oil pipe anchor has the oil drainage function, the anchoring is reliable, the stability is good, the deblocking load is more than 8t, and the deblocking is safe and reliable. The pumping system of the invention is completed by using the continuous oil pipe vehicle for pumping and discharging, the traditional well repairing mode is thoroughly changed, the well repairing efficiency is improved, the operation is safe and environment-friendly, the underground operation does not need to be carried out by a carrier vehicle and a pipe column is discharged, all the procedures are completed by using the continuous oil pipe vehicle, the problems of labor intensity, labor staff and construction environment-friendly can be completely solved, the labor intensity is reduced, and the well repairing operation can be completed by one working shift.
The specific operation and use flow is as follows:
The well descending sequence of each component comprises sand setting pipe, sieve tube, pipe rod type oil pump with plunger (fixed valve and pump cylinder middle linked tubing anchor with oil unloading function), hollow transition pull rod joint, continuous oil pipe, hollow polish rod, packing box, square clip, rope hanger, well head sealing device, polish rod oil outlet connection, perfecting continuous oil pipe 'rod type oil pumping' system, pumping truck for pressing hydraulic tubing anchor when descending to pump hanging design position, anchoring pump at sleeve design depth (tubing anchor is indirect between pump cylinder and fixed valve), testing whether pump position is accurate, sealing is firm, high load can not be used to lift continuous oil pipe to avoid breaking deblocking pin, continuous oil pipe is put into traveling valve after sealing is judged, traveling valve enters traveling valve seat through high strength limit reed, sealing colloid is mainly used to prevent sand and other particles entering pump cylinder upper body, upper section of pump cylinder has cutting vent mainly functions of realizing breathing when hollow plunger is descending, connecting continuous oil pipe with continuous oil truck drum when upper body string, loading 8 is increased, loading of oil pipe is increased, oil pipe is recovered when lifting oil pipe, normal load is opened, and oil pipe is unloaded normally.
For the device and the use method disclosed in the embodiments, since the device and the use method correspond to the method disclosed in the embodiments, the description is relatively simple, and the relevant places refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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 (6)
1. A pipe rod type oil pump, characterized by comprising the following steps:
The oil inlet valve (2) is fixedly connected to the bottom end of the inner side of the pump cylinder (1), and the bottom edge of the outer side wall of the pump cylinder (1) is connected with the hydraulic oil pipe anchor (3);
the plunger (4) is inserted into the pump cylinder (1), the edge of the bottom end of the inner side wall of the plunger (4) is fixedly connected with a limiting unidirectional elastic sheet (5), a plurality of groups of limiting unidirectional elastic sheets (5) are respectively fixed on the inner side wall of the plunger (4), and the plurality of groups of limiting unidirectional elastic sheets (5) are positioned on the same horizontal plane;
The traveling valve (6) penetrates through the limiting unidirectional spring piece (5) and is clamped in a valve seat at the bottom end of the plunger (4), the limiting unidirectional spring piece (5) is of a unidirectional spring piece structure and downwards passes through the traveling valve (6), and the limiting unidirectional spring piece is used for realizing unidirectional clamping and limiting of the traveling valve;
the continuous oil pipe (7), the bottom of continuous oil pipe (7) with the top of plunger (4) links firmly, the top of continuous oil pipe (7) is located the outside of pump barrel (1), drops into the valve ball of traveling valve through continuous oil pipe, and the valve ball passes spacing one-way shell fragment and joint on the disk seat.
2. The tubular rod type oil well pump according to claim 1, wherein the top end of the pump barrel (1) is contracted, a hollow transition pull rod (8) is connected between the continuous oil pipe (7) and the plunger (4), and the outer side wall of the hollow transition pull rod (8) is in dynamic sealing sliding connection with the top end opening of the pump barrel (1).
3. A rod pump according to claim 2, wherein the top edge of the outer side wall of the pump barrel (1) is provided with slit ventilation holes (10).
4. A rod pump according to claim 1, characterized in that the hydraulic tubing anchor (3) is a hydraulic bi-directional slip tubing anchor, the hydraulic tubing anchor (3) being located between the travelling valve (6) and the oil inlet valve (2).
5. The oil pumping system is characterized by comprising the oil well pump, the up-down reciprocating power continuous pipe (11), the rope hanging device (12), the hollow polished rod (13), the rubber gate (14), the packing box (15) and the four-way joint (16) according to any one of claims 1-4, wherein the oil well pump is positioned in an oil well, the hollow polished rod (13) is fixedly connected to the top end of the continuous oil pipe (7), one end of the rope hanging device (12) is connected with the up-down reciprocating power continuous pipe (11), the four-way joint (16) is fixed to a wellhead of an oil well, the rubber gate (14) is fixed to the four-way joint (16), the packing box (15) is fixed to the top of the rubber gate (14), and the hollow polished rod (13) is in dynamic sealing sliding connection with the packing box (15).
6. A pumping system according to claim 5, wherein the top end of the hollow polished rod (13) is provided with an oil outlet elbow (19), and the oil in the oil pump passes through the coiled tubing (7), the hollow polished rod (13) and is discharged from the oil outlet elbow (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311169894.2A CN116988768B (en) | 2023-09-12 | 2023-09-12 | A tube-rod oil pump and an oil pumping system having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311169894.2A CN116988768B (en) | 2023-09-12 | 2023-09-12 | A tube-rod oil pump and an oil pumping system having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116988768A CN116988768A (en) | 2023-11-03 |
| CN116988768B true CN116988768B (en) | 2025-10-03 |
Family
ID=88526850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311169894.2A Active CN116988768B (en) | 2023-09-12 | 2023-09-12 | A tube-rod oil pump and an oil pumping system having the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116988768B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2660091Y (en) * | 2003-10-22 | 2004-12-01 | 祝养学 | High-reliability bidirectional hydraulic tubing anchor |
| CN201045290Y (en) * | 2007-03-09 | 2008-04-09 | 李文才 | Large hollow stem oil pumping system |
| CN205605396U (en) * | 2016-04-27 | 2016-09-28 | 东营百华石油技术开发有限公司 | Oil -well pump that inclined shaft was used |
| CN205638873U (en) * | 2016-04-20 | 2016-10-12 | 中国石油天然气股份有限公司 | An upper exchanging anti-air pump |
| CN220791205U (en) * | 2023-09-12 | 2024-04-16 | 新疆克拉玛依市采丰实业有限责任公司 | Pipe rod type oil pump and oil pumping system with same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4049365A (en) * | 1974-09-13 | 1977-09-20 | Sparks Sr Virgil H | Oil well pump with plunger pull down and desanding assembly |
| CN104061142B (en) * | 2014-06-25 | 2016-04-06 | 东营市天亿石油工具制造有限公司 | Hydraulic driving oil well pump and extracting device of oil |
| CN114483551B (en) * | 2020-11-12 | 2024-08-27 | 中国石油天然气股份有限公司 | Piston pump system |
| CN113187707A (en) * | 2021-06-11 | 2021-07-30 | 新疆克拉玛依市采丰实业有限责任公司 | Solid plunger multi-prevention efficient oil well pump |
-
2023
- 2023-09-12 CN CN202311169894.2A patent/CN116988768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2660091Y (en) * | 2003-10-22 | 2004-12-01 | 祝养学 | High-reliability bidirectional hydraulic tubing anchor |
| CN201045290Y (en) * | 2007-03-09 | 2008-04-09 | 李文才 | Large hollow stem oil pumping system |
| CN205638873U (en) * | 2016-04-20 | 2016-10-12 | 中国石油天然气股份有限公司 | An upper exchanging anti-air pump |
| CN205605396U (en) * | 2016-04-27 | 2016-09-28 | 东营百华石油技术开发有限公司 | Oil -well pump that inclined shaft was used |
| CN220791205U (en) * | 2023-09-12 | 2024-04-16 | 新疆克拉玛依市采丰实业有限责任公司 | Pipe rod type oil pump and oil pumping system with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116988768A (en) | 2023-11-03 |
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