CN220791205U - Pipe rod type oil pump and oil pumping system with same - Google Patents
Pipe rod type oil pump and oil pumping system with same Download PDFInfo
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- CN220791205U CN220791205U CN202322467324.3U CN202322467324U CN220791205U CN 220791205 U CN220791205 U CN 220791205U CN 202322467324 U CN202322467324 U CN 202322467324U CN 220791205 U CN220791205 U CN 220791205U
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- plunger
- rod
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- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 claims abstract description 99
- 239000003129 oil well Substances 0.000 claims abstract description 21
- 238000012856 packing Methods 0.000 claims abstract description 13
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 15
- 238000000605 extraction Methods 0.000 description 7
- 239000010779 crude oil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model 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, wherein a valve is fixed at the bottom of the inner side of the pump barrel, and a hydraulic oil pipe anchor is connected with the upper edge of the valve fixed at the bottom of the outer side wall of the pump barrel; the plunger is arranged in the pump cylinder, and the edge of the bottom end of the inner side wall of the plunger is fixedly connected with a limit unidirectional elastic sheet; the traveling valve penetrates through the limiting unidirectional spring plate and is clamped in the bottom valve seat of the plunger; the oil pumping system comprises an oil well pump, an up-and-down reciprocating power continuous pipe, a rope hanger, a hollow polished rod, a rubber gate and a packing box, wherein the oil well pump is positioned 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-and-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 utility model 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 utility model
In view of the above, the utility model 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 above purpose, the utility model adopts the following technical scheme: a rod pump comprising:
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 beneficial effects of the utility model are as follows: the utility model changes the original mechanical oil pump structure, replace the sucker rod with the coiled tubing, the coiled tubing provides the reciprocating pulling force for the hollow plunger and plays a role of conveying the oil way, the pump body of the utility model can use the coiled tubing to bring into the well, fix the pump body in the predetermined depth of the inner sleeve of the oil well through the hydraulic tubing anchor, the underground structure does not carry the oil pipe, when overhauling, carry the pump, lower pump and finish with the coiled tubing car, carry, lower coiled tubing can finish the whole and examine the pump operation, easy to use, the concrete pumping process is, in the course of the upstroke, the pump cavity volume under the plunger increases, the pressure reduces, the oil inlet valve opens under the action of the up-down pressure difference, the crude oil enters the lower pump cavity, meanwhile, the traveling valve closes under the action of the up-down pressure difference; similarly, on the downstroke, the hollow plunger moves downward, squeezing 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 technical effects produced by the method are as follows: the outer surface of the hollow transition pull rod is smooth, and the dynamic seal 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 in a transition way.
Preferably, a slit vent hole is formed in the top edge of the outer side wall of the pump cylinder.
The technical effects produced by the method are as follows: in the reciprocating movement process of the hollow plunger, the pressure balance between the top section of the hollow plunger and the inside of the pump cylinder is realized by utilizing a slit ventilation hole, and the hollow plunger is in dynamic seal sliding connection with the inner side wall of the pump cylinder.
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 technical effects produced by the method are as follows: the hydraulic bidirectional slip oil pipe anchor can be used for realizing the position fixation of the pump body, is reliable in anchoring and good in stability, and ensures the oil extraction process.
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 effects produced by the method are as follows: the one-way clamping limit of the traveling valve is realized by using the limit one-way elastic sheet, the valve ball of the traveling valve is put into the continuous oil pipe, and the valve ball passes through the limit one-way elastic sheet and is clamped on the valve seat.
The utility model 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 beneficial effects of the utility model are as follows: the utility model utilizes the novel oil pump to complete the oil extraction process, is convenient to overhaul, has low overhaul cost, increases the diameter of oil delivery pipe by directly using the continuous oil pipe, and has high oil extraction efficiency and convenient use.
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 effects produced by the method are as follows: the outer side wall of the hollow polish rod is smooth so as to ensure the smooth ascending and descending process of the continuous oil pipe and reduce the resistance of the sealing part of the external wellhead.
Drawings
FIG. 1 is a block diagram of a rod pump of the present utility model;
FIG. 2 is an enlarged view of a portion of a rod pump according to the present utility model;
FIG. 3 is a schematic diagram of an oil pumping system of the present utility model.
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 utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 2 of the drawings, a rod pump according to an embodiment of the present utility model 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 utility model 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 utility model 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 utility model 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 descending sequence of each component is as follows: sand settling pipe- & gt screen pipe- & gt pipe rod type oil pump with plunger (oil pipe anchor is linked between fixed valve and pump cylinder with oil unloading function- & gt hollow transition pull rod joint- & gt continuous oil pipe- & gt hollow polish rod- & gt packing box- & gt square clip- & gt rope hanger- & gt wellhead sealing device- & gt polish rod oil outlet connection, perfect continuous oil pipe 'rod pumping' system, pump truck is used for pressing hydraulic oil pipe anchor when the pump is hung down to the design position, anchor pump at sleeve design depth (oil pipe anchor is indirect between pump cylinder and fixed valve), test whether pump position is accurate, seal whether or not seal is firm, can not high load lift continuous oil pipe after seal is done in order to avoid breaking the deblocking pin nail, judge that continuous oil pipe is put into the traveling valve after pump fixing firm, traveling valve enters the traveling valve seat through high-strength limit reed, pump cylinder top has a sealing colloid mainly to prevent sand and other particles from entering pump cylinder upper body and generating pump clamping, pump cylinder upper segment has a slit ventilation hole main function to realize breathing when hollow plunger is hung down, continuous oil pipe is connected to continuous oil pipe drum when upper body load is increased by more than 8 tons (oil pipe anchor is taken off), oil pipe is normally pulled up, oil pipe can be recovered in order to realize oil pipe unloading function and oil pipe is recovered at normal place.
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 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 (7)
1. A rod pump comprising:
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), and 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);
the traveling valve (6) penetrates through the limiting unidirectional elastic sheet (5) and is clamped in the bottom valve seat of the plunger (4);
And the bottom end of the continuous oil pipe (7) is fixedly connected with the top end of the plunger (4), and the top of the continuous oil pipe (7) is positioned at the outer side of the pump cylinder (1).
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 pipe rod type oil well pump according to claim 1, wherein the limiting unidirectional spring pieces (5) are multiple groups and are respectively fixed on the inner side wall of the plunger (4), the limiting unidirectional spring pieces (5) are positioned on the same horizontal plane, and the limiting unidirectional spring pieces (5) are of unidirectional spring piece structures and downwards pass through the traveling valve (6).
6. 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 1-5, 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).
7. A pumping system according to claim 6, 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 |
|---|---|---|---|
| CN202322467324.3U CN220791205U (en) | 2023-09-12 | 2023-09-12 | Pipe rod type oil pump and oil pumping system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322467324.3U CN220791205U (en) | 2023-09-12 | 2023-09-12 | Pipe rod type oil pump and oil pumping system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791205U true CN220791205U (en) | 2024-04-16 |
Family
ID=90657038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322467324.3U Active CN220791205U (en) | 2023-09-12 | 2023-09-12 | Pipe rod type oil pump and oil pumping system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791205U (en) |
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2023
- 2023-09-12 CN CN202322467324.3U patent/CN220791205U/en active Active
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