CN220621829U - Sand-proof oil pump with short plunger and long pump barrel - Google Patents
Sand-proof oil pump with short plunger and long pump barrel Download PDFInfo
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- CN220621829U CN220621829U CN202321955132.0U CN202321955132U CN220621829U CN 220621829 U CN220621829 U CN 220621829U CN 202321955132 U CN202321955132 U CN 202321955132U CN 220621829 U CN220621829 U CN 220621829U
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- traveling valve
- sand
- plunger
- oil
- pump
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- 239000004576 sand Substances 0.000 claims abstract description 73
- 239000003129 oil well Substances 0.000 claims description 11
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a sand-preventing oil pump with a short plunger long pump barrel, which comprises an upper oil outlet connector, an upper traveling valve, a plunger, a lower traveling valve and a lower oil inlet connector which are sequentially connected from top to bottom, wherein an oil outlet is arranged on the upper oil outlet connector, a sand guiding mechanism is arranged on the upper traveling valve, and a sand guiding mechanism is arranged on the lower oil inlet connector.
Description
Technical Field
The utility model belongs to the technical field of oil field development artificial lifting mechanical oil extraction oil pumps, and particularly relates to a short-plunger long pump barrel sand-preventing oil pump.
Background
At present, in the development of loose sandstone oil reservoirs, a short plunger long pump cylinder type tubular pump can be used for completing artificial mechanical oil extraction and lifting under the condition of less well liquid sand amount, and the tubular oil pump in the form has the characteristics of simple structure, long service life and low cost. But plunger upper structure receives processing cost and precision limitation, and the upper most valve bonnet that moves about is less than plunger body external diameter about 1mm, and plunger upper and lower terminal surface all has the chamfer to the plunger body distance of having 11cm length on the plunger, and the plunger in the operation in-process is in the well liquid in case the grit gets into annular space, just unable discharge, and on the in-process grit that the plunger goes upward can fall into the plunger chamfer inclined plane, the mechanical lock is probably formed between plunger, pump cylinder, the grit three, finally lead to the wearing and tearing because of the grit friction leads to wearing and tearing between plunger and the pump cylinder, unable long-term use, can wear and tear the pump and cause the pump to become invalid in serious case. Therefore, a novel sand-preventing oil pump with a short plunger and a long pump barrel is developed.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the short plunger long pump barrel sand-preventing oil pump, which aims at the existing problems, and the sand-preventing structure is added while the advantages of the short plunger long pump barrel type tubular pump are maintained.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a long pump barrel sand control of short plunger grinds oil-well pump, its characterized in that, including last play oil joint, last traveling valve, plunger, lower traveling valve and the lower oil feed joint that connect gradually from last down, go up to be equipped with the oil outlet on the play oil joint, upward be equipped with on the traveling valve and draw sand mechanism, be equipped with sand guide mechanism down on the oil feed joint, draw sand mechanism and sand guide mechanism all introduce the outside sand of plunger inside the plunger.
According to the scheme, the upper traveling valve comprises an upper traveling valve cover, an upper traveling valve ball, an upper traveling valve seat and an upper traveling valve baffle, wherein two ends of the upper traveling valve cover are respectively connected and fastened with the upper oil outlet joint and the plunger, the upper traveling valve seat is arranged at the top end of the plunger, the upper traveling valve baffle is arranged at the bottom end of the upper oil outlet joint, and the upper traveling valve ball is configured with the upper traveling valve seat.
According to the scheme, the downstream valve comprises a downstream valve cover, a downstream valve ball, a downstream valve seat and a downstream valve baffle, wherein two ends of the downstream valve cover are respectively connected and fastened with the downstream oil inlet connector and the plunger, the downstream valve seat is arranged at the bottom end of the plunger, the downstream valve baffle is arranged at the top end of the upper oil outlet connector, and the downstream valve ball is configured with the downstream valve seat.
According to the scheme, the sand guiding mechanism is a concave arc sand guiding surface arranged on the top surface of the upper traveling valve cover, and the sand guiding surface is arranged corresponding to the oil outlet.
According to the scheme, the central bottom of the sand guiding surface is an inclined surface which is inclined inwards.
According to the scheme, the sand guiding mechanism is a sand guiding hole arranged on the lower oil inlet joint.
According to the scheme, the sand guide holes are upward inclined holes.
According to the scheme, the outer diameters of the upper traveling valve cover and the lower traveling valve cover are the same as the outer diameter of the plunger.
According to the scheme, the upper centralizer is sleeved outside the position, close to the top, of the upper oil outlet connector, and the lower centralizer is sleeved outside the position, close to the bottom, of the lower oil inlet connector.
According to the scheme, the upper centralizer is made of cast nylon.
The beneficial effects of the utility model are as follows: the utility model provides a short plunger long pump barrel sand control grinds oil-well pump, the both ends of plunger are equipped with respectively and draw sand and guide sand mechanism, during the upstroke, the plunger upward movement, scrape sand plunger can scrape the sand grain of pump barrel inner wall effectively and draw the sand face, and then fall into the plunger inside, during the downstroke, when the plunger descends, the sand grain gets into the plunger inside through leading the sand hole, thereby eliminate the compaction effect of sand grain, avoid the hard extrusion frictional force that forms between plunger and the pump barrel, can effectively prevent the sand card of plunger, the life of extension plunger, the production cycle of the high pump efficiency of increase oil well, simultaneously, the range of application is wide, good performance has apparent economic benefits.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Wherein, 1-go up oil outlet joint, 2-centralizer, 3-oil outlet, 4-sand guiding face, 5-inclined plane, 6-upward traveling valve baffle, 7-upward traveling valve bonnet, 8-upward traveling valve ball, 9-upward traveling valve seat, 10-plunger, 11-downward traveling valve ball, 12-sand guiding hole, 13-centralizer.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
As shown in fig. 1, the short plunger long pump barrel sand-preventing oil pump comprises an upper oil outlet joint 1, an upper traveling valve, a plunger 10, a lower traveling valve and a lower oil inlet joint which are sequentially connected from top to bottom, wherein an oil outlet hole 3 is formed in the upper oil outlet joint, a sand guiding mechanism is arranged on the upper traveling valve, a sand guiding mechanism is arranged on the lower oil inlet joint, and sand outside the plunger is guided into the plunger by the sand guiding mechanism and the sand guiding mechanism.
The upper traveling valve comprises an upper traveling valve cover 7, an upper traveling valve ball 8, an upper traveling valve seat 9 and an upper traveling valve baffle 6, wherein two ends of the upper traveling valve cover are respectively and fixedly connected with an upper oil outlet joint and a plunger, the upper traveling valve seat is arranged at the top end of the plunger, the upper traveling valve baffle is arranged at the bottom end of the upper oil outlet joint, and the upper traveling valve ball is configured with the upper traveling valve seat.
The lower traveling valve comprises a lower traveling valve cover, a lower traveling valve ball 11, a lower traveling valve seat and a lower traveling valve baffle, wherein two ends of the lower traveling valve cover are respectively connected and fastened with a lower oil inlet joint and a plunger, the lower traveling valve seat is arranged at the bottom end of the plunger, the lower traveling valve baffle is arranged at the top end of an upper oil outlet joint, and the lower traveling valve ball is configured with the lower traveling valve seat.
The sand guiding mechanism is a concave arc sand guiding surface 4 arranged on the top surface of the upper traveling valve cover, the sand guiding surface is arranged corresponding to the oil outlet, the central bottom of the sand guiding surface is an inward inclined surface 5, and the accumulated sand grains conveniently flow into the plunger along the inclined surface.
The sand guiding mechanism is a sand guiding hole 12 arranged on the lower oil inlet joint, the sand guiding hole is an upward inclined hole, and sand grains can enter the plunger along the sand guiding hole.
The outer diameters of the upper traveling valve cover and the lower traveling valve cover are the same as the outer diameter of the plunger, and an annular gap is reserved between the plunger and the oil outlet, so that dead space accumulation is avoided.
An upper centralizer 2 is sleeved outside the upper oil outlet joint at a position close to the top, and a lower centralizer 13 is sleeved outside the lower oil inlet joint at a position close to the bottom.
The upper centralizer is an elastic centralizer and is made of soft wear-resistant materials, preferably MC nylon (Monomer casting nylon), so that hard clamping of sand and sundries falling on the top end of a sand guiding surface in the production process is prevented, and the pump barrel can be protected by deformation even if the sand and the sundries are clamped into the upper centralizer. The lower centralizer prevents the plunger from being damaged when the plunger descends.
During the upstroke, the plunger upwards moves, and the plunger can effectively scrape sand grains near the inner wall of the pump cylinder to the sand guiding surface of the plunger, so that the hard extrusion friction force formed between the plunger and the pump cylinder due to the compaction effect of the sand grains of a conventional pump is eliminated, sand clamping of the plunger can be effectively prevented, the service life of the plunger can be prolonged, and the production period of high pump efficiency of an oil well is prolonged.
During the down stroke, the plunger descends, and part of sand particles accumulated near the sand guide hole of the plunger can be punched into the plunger along the sand guide hole, so that the aim of preventing sand from being blocked is fulfilled.
Claims (10)
1. The utility model provides a long pump barrel sand control of short plunger grinds oil-well pump, its characterized in that, including last play oil joint, last traveling valve, plunger, lower traveling valve and the lower oil feed joint that connect gradually from last down, go up to be equipped with the oil outlet on the play oil joint, upward be equipped with on the traveling valve and draw sand mechanism, be equipped with sand guide mechanism down on the oil feed joint, draw sand mechanism and sand guide mechanism all introduce the outside sand of plunger inside the plunger.
2. The short plunger long pump barrel sand-preventing oil pump of claim 1, wherein the upper traveling valve comprises an upper traveling valve cover, an upper traveling valve ball, an upper traveling valve seat and an upper traveling valve baffle, two ends of the upper traveling valve cover are respectively connected and fastened with the upper oil outlet joint and the plunger, the upper traveling valve seat is arranged at the top end of the plunger, the upper traveling valve baffle is arranged at the bottom end of the upper oil outlet joint, and the upper traveling valve ball is configured with the upper traveling valve seat.
3. The short plunger long pump barrel sand-preventing oil pump of claim 2, wherein the lower traveling valve comprises a lower traveling valve cover, a lower traveling valve ball, a lower traveling valve seat and a lower traveling valve baffle, two ends of the lower traveling valve cover are respectively connected and fastened with the lower oil inlet joint and the plunger, the lower traveling valve seat is arranged at the bottom end of the plunger, the lower traveling valve baffle is arranged at the top end of the upper oil outlet joint, and the lower traveling valve ball is configured with the lower traveling valve seat.
4. The short-plunger long-pump barrel sand-preventing oil pump according to claim 2 or 3, wherein the sand guiding mechanism is a concave arc sand guiding surface arranged on the top surface of the upper traveling valve cover, and the sand guiding surface is arranged corresponding to the oil outlet.
5. The short plunger long barrel sand control oil well pump of claim 4 wherein the central bottom of said sand guiding surface is an inwardly sloped surface.
6. The short plunger long barrel sand control oil well pump of claim 3 or 5 wherein said sand guiding means is a sand guiding hole provided on said lower oil inlet joint.
7. The short plunger long barrel sand control oil well pump of claim 6 wherein said sand guiding hole is an upward inclined hole.
8. The short plunger long pump barrel sand control oil well pump of claim 3 wherein the outer diameter of both the upstream and downstream valve housings is the same as the outer diameter of the plunger.
9. The short plunger long pump barrel sand control oil well pump of claim 7 wherein an upper centralizer is sleeved outside the upper oil outlet joint near the top and a lower centralizer is sleeved outside the lower oil inlet joint near the bottom.
10. The short plunger long barrel sand control oil well pump of claim 9 wherein said upper centralizer is made of cast nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955132.0U CN220621829U (en) | 2023-07-24 | 2023-07-24 | Sand-proof oil pump with short plunger and long pump barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955132.0U CN220621829U (en) | 2023-07-24 | 2023-07-24 | Sand-proof oil pump with short plunger and long pump barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220621829U true CN220621829U (en) | 2024-03-19 |
Family
ID=90225110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321955132.0U Active CN220621829U (en) | 2023-07-24 | 2023-07-24 | Sand-proof oil pump with short plunger and long pump barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220621829U (en) |
-
2023
- 2023-07-24 CN CN202321955132.0U patent/CN220621829U/en active Active
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