CN218717404U - Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump - Google Patents
Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump Download PDFInfo
- Publication number
- CN218717404U CN218717404U CN202222865084.8U CN202222865084U CN218717404U CN 218717404 U CN218717404 U CN 218717404U CN 202222865084 U CN202222865084 U CN 202222865084U CN 218717404 U CN218717404 U CN 218717404U
- Authority
- CN
- China
- Prior art keywords
- pump
- valve
- negative pressure
- oil
- oil inlet
- 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.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
A negative pressure strong return stroke double-hydraulic high-efficiency feedback pump relates to the technical field of oil well pumps and comprises an upper pump barrel and a lower pump barrel which are vertically arranged, wherein a bias valve body is fixedly connected at the joint of the upper pump barrel and the lower pump barrel, a valve coupling is connected to the lower end of the lower pump barrel, a lower port of the valve coupling is sealed, a negative pressure valve is fixedly arranged in the valve coupling, a breathing hole is formed in the side wall of the valve coupling, and the negative pressure valve is communicated with the breathing hole through a connecting pipeline. The utility model solves the problem that in the use process of the oil well pump in the traditional technology, because the working environment of the oil well pump is severe, air is easy to enter the oil well pump along with oil in the oil pumping process, and the stability of the oil well pump is influenced; and the problems of large descending resistance, eccentric wear of rod pipes, low pump efficiency and short production cycle of the oil well of the sucker-rod pump in the inclined well and the thick oil well.
Description
Technical Field
The utility model relates to an oil-well pump technical field, concretely relates to negative pressure return stroke double-hydraulic power high-efficient feedback pump.
Background
As the oil field enters the middle and later development stages, the development of the inclined shaft and the heavy oil well gradually becomes the main power position for increasing storage and increasing production of the oil field, and the sucker rod pump oil extraction mode is the most main lifting mode of the oil well due to mature technology, economy, reliability and convenient maintenance and management. However, in the application process of the conventional sucker rod oil pump in an inclined shaft and a thick oil well, the problems of large downward resistance of a rod string, difficulty in downward movement, untight closing of an oil inlet valve, lag, low pump efficiency, narrow flow passage of the oil inlet valve, long flow path, large oil inlet resistance, short pump detection period and the like exist, and the economic and efficient exploitation of the oil well is seriously influenced.
The prior art discloses a patent with publication number CN203626781U, which comprises an upper joint, an upper pump barrel, an oil outlet joint, an outer barrel, an upper plunger, an oil outlet valve, a valve joint, an eccentric oil inlet valve, an oil inlet valve, a central pipe, an eccentric joint, a lower pump barrel, a lower joint and a lower plunger. The method is characterized in that: the upper end of the upper joint is provided with internal threads which can be connected with a steam injection pipe column, and the lower end of the upper joint is provided with internal threads which are connected with an upper pump barrel; an upper steam injection hole structure is designed on the outer wall of the upper pump barrel, a lower steam injection groove structure is designed on the inner wall of the upper pump barrel, and external threads are arranged at the lower end of the upper pump barrel and connected with the outer barrel; the outer cylinder is connected with the lower eccentric joint; the eccentric joint is connected with the eccentric oil inlet valve and the lower pump barrel; the eccentric oil inlet valve comprises an eccentric oil inlet valve ball, an eccentric oil inlet valve seat and a compression joint; the lower end of the lower pump barrel is connected with a lower joint; the lower joint is connected with the steam injection pipe column, the structure is simple, the construction is convenient, and the multi-cycle steam injection and oil pumping of the downhole pump can be realized through one-time workover.
The prior device gradually exposes the defects of the technology along with the use, and is mainly expressed in the following aspects:
first, because the oil-well pump operational environment is abominable, in the oil pumping process, the air easily enters into the oil-well pump along fluid together, influences the stability of oil-well pump.
Secondly, the rod pump has large descending resistance, eccentric wear of rod pipes, low pump efficiency and short production period of the oil well in the inclined well and the thick oil well.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model solves the problem that in the use process of the oil well pump in the traditional technology, because the working environment of the oil well pump is severe, air is easy to enter the oil well pump along with oil liquid in the oil pumping process, and the stability of the oil well pump is influenced; and the problems of large descending resistance, eccentric wear of rod pipes, low pump efficiency and short production cycle of the oil well of the sucker-rod pump in the inclined well and the thick oil well.
In order to solve the above problem, the utility model provides a following technical scheme:
negative pressure intensity return stroke double-hydraulic high-efficiency feedback pump, including the last pump barrel and the lower pump barrel of vertical setting, go up the pump barrel with the junction rigid coupling of pump barrel has the biasing valve body down, the lower tip of pump barrel is connected with the valve coupling down, the lower port of valve coupling seals the setting, the valve coupling internal fixation is equipped with the negative pressure valve, the breather has been seted up on the lateral wall of valve coupling, the negative pressure valve pass through connecting tube with the breather is linked together.
As an optimized scheme, an oil inlet deviated from the center is arranged on the offset valve body, an oil inlet sieve tube and an oil inlet pipeline covering the oil inlet are fixedly connected to the outer wall of the offset valve body from outside to inside, the lower end part of the oil inlet sieve tube is sealed, and a sand collecting area is arranged between the lower end part of the oil inlet pipeline and the lower end part of the oil inlet sieve tube.
As an optimized scheme, the peripheral wall of the oil inlet sieve pipe is provided with a filtering hole section.
Preferably, the screen section is adjacent to the upper end of the oil screen.
As an optimized scheme, a plunger assembly is arranged between the upper pump cylinder and the lower pump cylinder in a vertically reciprocating sliding mode.
As an optimized scheme, the plunger assembly comprises an upper plunger and a lower plunger which are connected, a lower traveling valve is connected in the lower end part of the upper plunger, and a liquid inlet of the lower traveling valve is communicated with an inner cavity of the upper pump barrel.
As an optimized scheme, an oil outlet of the offset valve body is communicated with an inner cavity of the upper pump cylinder.
Preferably, the diameter of the upper pump cylinder is larger than that of the lower pump cylinder.
Preferably, an upper traveling valve is further arranged in the upper end part of the upper plunger.
As an optimized scheme, a spiral guide vane is arranged on the inner wall of the upper plunger between the upper movable valve and the lower movable valve.
As an optimized scheme, a plug is arranged at the lower end part of the lower plunger.
As an optimized scheme, the upper end part of the upper plunger is connected with a sucker rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the sand collecting area can be used for collecting sand entering along with oil in the sand collecting area, so that the amount of sand entering the pump body is reduced;
the filter hole section is arranged above, so that the slippage effect of oil gas in the oil extraction process is realized, and the gas prevention function of oil inlet is realized;
the negative pressure valve plays a breathing role, is closed when the oil well pump is in an up stroke, and generates a negative pressure cavity in the lower cavity of the lower plunger;
the oil inlet valve adopts an offset structure, and has a large oil inlet flow passage, a short flow and small oil inlet resistance;
the spiral guide vane is arranged on the inner wall between the upper movable valve and the lower movable valve, so that the ascending oil is guided to generate a rotational flow, and the rotational flow sand-carrying and oil increasing capabilities are achieved;
the problems of large descending resistance, eccentric wear of rod pipes, low pump efficiency, short production period of an oil well and the like of the sucker-rod pump in an inclined well and a thick oil well can be effectively solved, the number of single-well operation times can be reduced, the single-well operation cost can be reduced, the crude oil yield can be improved, the requirements of cost reduction and efficiency improvement of the oil field can be met, and considerable economic benefits can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-mounting a pump barrel; 2, pumping down a cylinder; 3-biasing the valve body; 4-an oil inlet; 5-an oil inlet sieve tube; 6-oil inlet pipe; 7-a sand collection area; 8-a filter pore section; 9-an upper plunger; 10-a lower plunger; 11-a valve collar; 12-a negative pressure valve; 13-a breathing hole; 14-plug; 15-liquid inlet; 16-an oil outlet; 17-a downstream valve; 18-an upstream valving; 19-helical guide vanes; 20-sucker rod.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, the negative pressure strong return double-hydraulic high-efficiency feedback pump comprises an upper pump barrel 1 and a lower pump barrel 2 which are vertically arranged, wherein a bias valve body 3 is fixedly connected at the joint of the upper pump barrel 1 and the lower pump barrel 2, a valve coupling 11 is connected at the lower end part of the lower pump barrel 2, the lower port of the valve coupling 11 is sealed, a negative pressure valve 12 is fixedly arranged in the valve coupling 11, a breathing hole 13 is formed in the side wall of the valve coupling 11, and the negative pressure valve 12 is communicated with the breathing hole 13 through a connecting pipeline.
An oil inlet 4 deviated from the center is arranged on the offset valve body 3, an oil inlet sieve tube 5 and an oil inlet pipeline 6 for coating the oil inlet 4 are fixedly connected to the outer wall of the offset valve body 3 from outside to inside, the lower end part of the oil inlet sieve tube 5 is sealed, and a sand collecting area 7 is arranged between the lower end part of the oil inlet pipeline 6 and the lower end part of the oil inlet sieve tube 5.
The peripheral wall of the oil inlet sieve tube 5 is provided with a filtering hole section 8.
The screen sections 8 are near the upper end of the oil screen 5.
A plunger assembly is arranged between the upper pump cylinder 1 and the lower pump cylinder 2 along the vertical reciprocating sliding.
The plunger assembly comprises an upper plunger 9 and a lower plunger 10 which are connected, a lower flow valve 17 is connected in the lower end part of the upper plunger 9, and a liquid inlet 15 of the lower flow valve 17 is communicated with the inner cavity of the upper pump barrel 1.
An oil outlet 16 of the offset valve body 3 is communicated with the inner cavity of the upper pump cylinder 1.
The diameter of the upper pump cylinder 1 is larger than that of the lower pump cylinder 2.
An upper traveling valve 18 is also provided in the upper end of the upper plunger 9.
The inner wall of the upper plunger 9 between the upstream valve 18 and the downstream valve 17 is provided with a spiral guide vane 19.
The lower end of the lower plunger 10 is provided with a stopper 14.
The upper end of the upper plunger 9 is connected to a sucker rod 20.
The working principle of the device is as follows:
the sand collecting area 7 can be used for collecting sand entering along with oil in the sand collecting area 7, so that the amount of sand entering the pump body is reduced;
the filtering hole section 8 is arranged above, so that the oil gas slippage effect in the oil extraction process is realized, and the oil-taking gas prevention function is realized;
the negative pressure valve 12 plays a breathing role, is closed when the oil well pump is in an up stroke, and generates a negative pressure cavity in the lower cavity of the lower plunger 10, and the oil well plunger generates forced downward power due to the existence of the negative pressure cavity when in a down stroke, so that the eccentric wear of a rod string is reduced;
the oil inlet valve adopts an offset structure, and has a large oil inlet flow passage, a short flow and small oil inlet resistance;
the spiral guide vane 19 is arranged on the inner wall between the upper movable valve 18 and the lower movable valve 17, so that the ascending oil is guided to generate a rotational flow, and the rotational flow sand-carrying and oil increasing capabilities are achieved;
the problems of large descending resistance, eccentric wear of rod pipes, low pump efficiency, short production period of an oil well and the like of the sucker-rod pump in an inclined well and a thick oil well can be effectively solved, the number of single-well operation times can be reduced, the single-well operation cost can be reduced, the crude oil yield can be improved, the requirements of cost reduction and efficiency improvement of the oil field can be met, and considerable economic benefits can be achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. Negative pressure strength return stroke double-hydraulic high-efficiency feedback pump, which is characterized in that: go up pump barrel (1) and lower pump barrel (2) including vertical setting, go up pump barrel (1) with the junction rigid coupling of lower pump barrel (2) has biasing valve body (3), lower tip of lower pump barrel (2) is connected with valve coupling (11), the lower port of valve coupling (11) seals the setting, valve coupling (11) internal fixation is equipped with negative pressure valve (12), respiratory hole (13) have been seted up on the lateral wall of valve coupling (11), negative pressure valve (12) through connecting tube with respiratory hole (13) are linked together.
2. The negative pressure return double hydraulic high efficiency feedback pump of claim 1, wherein: the sand-collecting valve is characterized in that an oil inlet (4) deviated from the center is formed in the offset valve body (3), a coating is fixedly connected to the outer wall of the offset valve body (3) from outside to inside, an oil inlet sieve pipe (5) and an oil inlet pipeline (6) of the oil inlet (4), the lower end part of the oil inlet sieve pipe (5) is sealed and arranged, and a sand-collecting area (7) is arranged between the lower end part of the oil inlet pipeline (6) and the lower end part of the oil inlet sieve pipe (5).
3. The negative pressure return double hydraulic power efficient feedback pump of claim 2, wherein: and a filtering hole section (8) is arranged on the peripheral wall of the oil inlet sieve tube (5).
4. The negative pressure return double hydraulic high efficiency feedback pump of claim 3, wherein: the screen hole section (8) is close to the upper end of the oil inlet screen (5).
5. The negative pressure return double hydraulic high efficiency feedback pump of claim 4, wherein: and a plunger assembly is arranged between the upper pump barrel (1) and the lower pump barrel (2) in a reciprocating sliding manner along the vertical direction.
6. The negative pressure return double hydraulic power efficient feedback pump of claim 5, wherein: the plunger assembly comprises an upper plunger (9) and a lower plunger (10) which are connected, a lower traveling valve (17) is connected in the lower end part of the upper plunger (9), and a liquid inlet (15) of the lower traveling valve (17) is communicated with an inner cavity of the upper pump barrel (1).
7. The negative pressure return double-hydraulic high-efficiency feedback pump according to claim 6, wherein: an oil outlet (16) of the offset valve body (3) is communicated with an inner cavity of the upper pump cylinder (1).
8. The negative pressure return double hydraulic power efficient feedback pump of claim 7, wherein: the diameter of the upper pump cylinder (1) is larger than that of the lower pump cylinder (2).
9. The negative pressure return double hydraulic power efficient feedback pump of claim 8, wherein: an upper movable valve (18) is also arranged in the upper end part of the upper plunger (9).
10. The negative pressure return double hydraulic high efficiency feedback pump of claim 9, wherein: and a spiral guide vane (19) is arranged on the inner wall of the upper plunger (9) between the upstream valve (18) and the downstream valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222865084.8U CN218717404U (en) | 2022-10-29 | 2022-10-29 | Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222865084.8U CN218717404U (en) | 2022-10-29 | 2022-10-29 | Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717404U true CN218717404U (en) | 2023-03-24 |
Family
ID=85595496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222865084.8U Active CN218717404U (en) | 2022-10-29 | 2022-10-29 | Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717404U (en) |
-
2022
- 2022-10-29 CN CN202222865084.8U patent/CN218717404U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110939426B (en) | Centrifugal separation mechanism and co-well injection and production device using same | |
| CN206988079U (en) | A kind of fluid pressure type oil well pump | |
| CN218717404U (en) | Negative pressure strong return stroke double-hydraulic high-efficiency feedback pump | |
| CN207297303U (en) | One kind has bar lifting whole process to go out liquid oil well pump | |
| CN109973371A (en) | Tandem double acting injection-extraction pump for high-water-cut oil-producing well | |
| CN202955049U (en) | Double-barreled water jet pump | |
| CN212406690U (en) | High-gas-content well sucker-rod pump lifting effect-improving device and process pipe column | |
| CN209370027U (en) | Offset layer mining oil-well pump | |
| CN201554632U (en) | Eccentric gap bridge separate-pumping mixed-recovery oil well pump | |
| CN211174070U (en) | Injection-production blowout-prevention oil well pump | |
| CN101298867A (en) | Double-work rod oil-well pump | |
| CN209875440U (en) | Tandem double-acting injection and production pump for high water-content oil well | |
| CN205349677U (en) | Annular plunger float buret formula oil -well pump | |
| CN211397844U (en) | Hydraulic feedback oil well pump for shallow horizontal well | |
| CN113914824A (en) | Well-flushing pump down-hole follow-up sealing production-increasing tubular column and efficient lifting method | |
| CN206320019U (en) | Injection region Special oil pump | |
| CN206158937U (en) | Thick pump is taken out to tubular | |
| CN101614202B (en) | Double-deck defueling pump | |
| CN215485971U (en) | Bridge type eccentric built-in forward gas lift valve | |
| CN218991840U (en) | Valve group offset feedback pump | |
| CN2242981Y (en) | Injection-extraction-tube type pump | |
| CN204283822U (en) | A kind of without compression tube oil-well pump | |
| CN216043654U (en) | Liquid drainage and gas production integrated pipe column | |
| CN104373329B (en) | Without compression tube oil-well pump | |
| CN218717403U (en) | Telescopic thickened oil feedback pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |