CN202732296U - Separate-layer and commingled output defueling pump with upper plunger and lower plunger separated - Google Patents
Separate-layer and commingled output defueling pump with upper plunger and lower plunger separated Download PDFInfo
- Publication number
- CN202732296U CN202732296U CN 201220256010 CN201220256010U CN202732296U CN 202732296 U CN202732296 U CN 202732296U CN 201220256010 CN201220256010 CN 201220256010 CN 201220256010 U CN201220256010 U CN 201220256010U CN 202732296 U CN202732296 U CN 202732296U
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- Prior art keywords
- separate
- layer
- pump
- plunger
- separated
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- Expired - Fee Related
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Abstract
The utility model discloses a separate-layer and commingled output defueling pump with an upper plunger and a lower plunger separated to realize the purpose of giving play to the off-take potential of separate-layer commingled production to the greatest extent and the improvement of the effect of separate-layer. The separate-layer and commingled output defueling pump with an upper plunger and a lower plunger separated comprises a pump cylinder and a cross-over tube, wherein an upper plunger and a lower plunger are arranged inside the pump cylinder with inner wall steps, and a by-pass water way, a communicating oil pipe, a side flow channel and the like are arranged between the pump cylinder and the cross-over tube. The separate-layer and commingled output defueling pump with upper plunger and lower plunger separated is characterized in that the upper plunger and the lower plunger are separated, and liquid inlets are independent, therefore eliminating the interfere between the layers, and realizing the purpose of the producing of the upper separate-layer and the lower separate-layer by controlling the travel under proper production flowing pressure, and giving play to the off-take potential of separate-layer commingled production to the greatest extent and improving the effect of separate-layer.
Description
Technical field
Minute adopting that the utility model relates to that a kind of upper and lower plunger separates mixes out oil well pump, belongs to the oil development technical field.
Background technique
At present, in the rod pumping system at home, for avoiding interlayer interference, mainly research and development is multiple oil production by layer instrument, such as eccentrically arranged valve formula separate extracting pump, gas-tight formula separate extracting pump, independent liquid in-out separate extracting pump, sliding valve style separate extracting pump etc., and formed a series of minute excavating technology tubing string.It is basic identical that these minutes are adopted structure, the working principle of instrument, namely combined by Equant oil pump neither, connect with pull bar between the upper and lower plunger, its greatest drawback be when under the separate extracting pump behind the certain position of down-hole, can not guarantee that upper and lower payzone depresses production at the stream that is tending towards reasonable production, oil well productivity is not in full use.
Summary of the invention
The purpose of this utility model is to provide that a kind of upper and lower plunger separates minute adopts and to mix out oil well pump, it can be by regulating upper and lower layer feed liquor ratio, realize that upper and lower payzone can depress production being tending towards reasonable production stream, farthest performance divides the production capacity of adopting payzone, reaches the purpose that improves oil production by layer.
Concrete technological scheme of the present utility model is as follows:
This oil well pump is comprised of pump barrel and cross under, and pump barrel is provided with the inwall step, the upper prop plug tube of establishing traveling valve in the step top is provided with, and the step below is provided with the lower prop plug tube.Establish the bypass waterway of bypass valve in being provided with between pump barrel and the cross under, the bypass waterway upper and lower end respectively is communicated with oil pipe by the upper and lower radial hole on the pump barrel stack shell.Establish the side direction flow channels of side direction suction valve in being provided with between pump barrel and the cross under, side direction flow channels high port is communicated with pump barrel stack shell middle part radial hole, and low port is communicated with cross under stack shell middle part radial hole.The oil well pump bottom is provided with standing valve.
The utility model divides that to adopt the upper and lower plunger that mixes out oil well pump disconnected from each other, feed pathway is separate, can effectively eliminate interlayer interference, can change upper and lower laminar flow pressure by regulating stroke, realize that upper and lower payzone can depress the purpose of production being tending towards reasonable production stream, can farthest bring into play and minute adopt the payzone production capacity, improve the effect of oil production by layer.
Description of drawings
Accompanying drawing is that minute adopting of separating of upper and lower plunger mixed out the oil well pump structural representation.
Embodiment
With reference to accompanying drawing embodiment of the present utility model is further specified:
Embodiment:
This oil well pump is comprised of pump barrel 1 and cross under 2, and pump barrel 1 is provided with middle part inwall step, the upper prop plug tube 3 of establishing traveling valve 5 in the step top is provided with, and the step below is provided with lower prop plug tube 8.Establish the bypass waterway 4 of bypass valve 9 in being provided with between pump barrel 1 and the cross under 2, bypass waterway 4 upper and lower ends respectively are communicated with oil pipe by the upper and lower radial hole on pump barrel 1 stack shell.The side direction flow channels 6 of establishing side direction suction valve 7 in being provided with between pump barrel 1 and the cross under 2, side direction flow channels 6 high ports are communicated with pump barrel 1 stack shell middle part radial hole, and low port is communicated with cross under 2 stack shells middle part radial hole.The oil well pump bottom is provided with standing valve 10.
In upstroke, upper prop plug tube 3 and lower prop plug tube 8 are up, and side direction suction valve 7 cuts out, and standing valve 10 is opened, and pump barrel 1 internal pressure is lower than pump intake pressure, and lower floor's fluid enters pump barrel 1 from standing valve 10.Meet pump barrel 1 inwall step behind upper prop plug tube 3 and the lower prop plug tube 8 up certain distances and stop, lower prop plug tube 8 is separated with upper prop plug tube 3, move on upper prop plug tube 3 continues, top fluid enters pump barrel 1 by side direction suction valve 7.
During down stroke, upper prop plug tube 3 is descending, and side direction suction valve 7 cuts out, and top fluid enters oil pipe by the traveling valve 5 in the upper prop plug tube 3.Upper prop plug tube 3 contacts with lower prop plug tube 8 behind descending certain distance, and promotes that it is together descending, and standing valve 10 cuts out, and lower floor's fluid enters oil pipe by bypass valve 9 and bypass waterway 4.So repeatedly, finish pumping discharge opeing process.
Claims (1)
1. minute adopting that a upper and lower plunger separates mixes out oil well pump, it is characterized in that:
This oil well pump is comprised of pump barrel (1) and cross under (2), and pump barrel (1) is provided with the inwall step, the upper prop plug tube (3) of establishing traveling valve (5) in the step top is provided with, and the step below is provided with lower prop plug tube (8); Establish the bypass waterway (4) of bypass valve (9) in being provided with between pump barrel (1) and the cross under (2), bypass waterway (4) upper and lower end respectively is communicated with oil pipe by the upper and lower radial hole on pump barrel (1) stack shell; The side direction flow channels (6) of establishing side direction suction valve (7) in being provided with between pump barrel (1) and the cross under (2), side direction flow channels (6) high port is communicated with pump barrel (1) stack shell middle part radial hole, and low port is communicated with cross under (2) stack shell middle part radial hole; The oil well pump bottom is provided with standing valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256010 CN202732296U (en) | 2012-06-01 | 2012-06-01 | Separate-layer and commingled output defueling pump with upper plunger and lower plunger separated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256010 CN202732296U (en) | 2012-06-01 | 2012-06-01 | Separate-layer and commingled output defueling pump with upper plunger and lower plunger separated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732296U true CN202732296U (en) | 2013-02-13 |
Family
ID=47658001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220256010 Expired - Fee Related CN202732296U (en) | 2012-06-01 | 2012-06-01 | Separate-layer and commingled output defueling pump with upper plunger and lower plunger separated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452819A (en) * | 2012-06-01 | 2013-12-18 | 中国石油天然气股份有限公司 | Layered-extracting and mixed-discharging oil-well pump with upper and lower plungers separated |
-
2012
- 2012-06-01 CN CN 201220256010 patent/CN202732296U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452819A (en) * | 2012-06-01 | 2013-12-18 | 中国石油天然气股份有限公司 | Layered-extracting and mixed-discharging oil-well pump with upper and lower plungers separated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210601 |