CN201568034U - Selective zone commingled oil production pipe string - Google Patents
Selective zone commingled oil production pipe string Download PDFInfo
- Publication number
- CN201568034U CN201568034U CN200920246842XU CN200920246842U CN201568034U CN 201568034 U CN201568034 U CN 201568034U CN 200920246842X U CN200920246842X U CN 200920246842XU CN 200920246842 U CN200920246842 U CN 200920246842U CN 201568034 U CN201568034 U CN 201568034U
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- oil
- pipe string
- packer
- reservoirs
- seat
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- Expired - Lifetime
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Abstract
The utility model discloses a selective zone commingled oil production pipe string which is applied for oil extraction at the same time at two oil reservoirs with different strata pressures. The selective zone commingled oil production pipe string is characterized in that a constant-pressure allocator is connected on the pipe string which is composed of oil pipes, and the constant-pressure allocator is arranged at the upper part of the upper oil reservoir. A packer is connected on the pipe string and is packed and sealed in the annular space between the sleeves between the two oil reservoirs and the oil pipes; a check valve is connected on the pipe string at the lower part of the packer; and the lower part of the check valve is connected with a shock tube. An oil pump is arranged inside the lower part of the pipe string, above the constant-pressure allocator. The packer packed and sealed between the oil reservoirs separates the two oil reservoirs. The liquid at the lower oil reservoir enters the oil pipes through the shock tube, the liquid of the upper oil reservoir enters the oil pipes through the constant-pressure allocator, and the liquid of the upper oil reservior and the liquid of the lower oil reservoir converge in the oil pipes and then are pumped up to the ground. Oil can be extracted at the two oil reservoirs at the same time and the strata pressures of the two oil reservoirs do not interfere with each other, so the yield of crude oil of a single well can be improved.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly the well recovery process pipe string is a kind of separate zone whole production flow string.
Background technology
In the oil mining process, often the oil reservoir of two (or a plurality of) Different Strata pressure of oil well is opened simultaneously and exploited.Use conventional flow string when the well recovery that two oil reservoirs are opened simultaneously, because two oil reservoirs are ganged up mutually, two formation pressure differences exist each other and disturb, and make to close and adopt two-layer output less than two-layer independent oil recovery amount sum.
The utility model content
The purpose of this utility model is: a kind of separate zone whole production flow string is provided, reduces pressure phase mutual interference between two oil reservoirs, farthest improve the individual well crude output.
The technical solution adopted in the utility model is: a kind of separate zone whole production flow string, by packer two oil reservoirs about the oil well are separated, and avoid the pressure disturbances between oil reservoir.
The separate zone whole production flow string is made up of level pressure production mandrel, oil well pump, ball-and-seat, floral tube, packer and oil pipe.Be fixed with the tubing string that oil pipe is formed in sleeve pipe, it is characterized in that: be connected with the level pressure production mandrel on the tubing string that oil pipe is formed, the position of level pressure production mandrel is on the top of top oil reservoir.Be connected with packer on the tubing string that oil pipe is formed, in the sleeve pipe and oil pipe annular space of packer set between two oil reservoirs, packer can be separated two oil reservoirs, and two formation pressures are not disturbed mutually.The tubing string bottom of forming at oil pipe is connected with ball-and-seat, and ball-and-seat is positioned at the bottom of packer, and the bottom of ball-and-seat is connected with floral tube.The crude oil of bottom oil reservoir can enter in the tubing string by floral tube and ball-and-seat.Under in the tubing string that oil pipe is formed oil well pump is arranged, the position of oil well pump 2 is on the top of level pressure production mandrel.
Base sealed packer between two oil reservoirs, separate two oil reservoirs, bottom oil reservoir liquid enters oil pipe by floral tube, and top oil reservoir liquid enters oil pipe by the level pressure production mandrel, ball-and-seat can only make bottom oil reservoir liquid enter the above oil pipe of ball-and-seat, stops top oil reservoir liquid to enter down oil reservoir; Levels liquid converges in the oil pipe above ball-and-seat, is extracted into ground by oil well pump.
The beneficial effects of the utility model: the utility model separate zone whole production flow string, the seat envelope has packer between two oil reservoirs, separate two oil reservoirs, bottom oil reservoir liquid enters oil pipe by floral tube, last oil reservoir liquid enters oil pipe by the level pressure production mandrel, levels liquid converges in oil pipe, is extracted into ground by oil well pump.Two oil reservoirs recover the oil simultaneously, and strata pressure does not disturb mutually, improve the individual well crude output.
5 mouthfuls of wells of field trial, average individual well oily 1.1t that increases day by day has reduced the pressure disturbances between two oil reservoirs, has reached the effect of 1+1 〉=2.
Description of drawings
Fig. 1 is the utility model structural profile schematic diagram.
Among the figure, 1. level pressure production mandrel, 2. oil well pump, 3. ball-and-seat, 4. floral tube, 5. packer, 6. sucker rod, 7. oil pipe, 8 sleeve pipes.
The specific embodiment
Embodiment:
Consult Fig. 1.The utility model separate zone whole production flow string is made up of level pressure production mandrel 1, oil well pump 2, ball-and-seat 3, floral tube 4, packer 5 and oil pipe 7.
In sleeve pipe, be fixed with the tubing string that oil pipe 7 is formed.Be connected with a level pressure production mandrel 1 on the tubing string that oil pipe 7 is formed, the position of level pressure production mandrel 1 is on the top of top oil reservoir.Be connected with a packer 5 on the tubing string that oil pipe 7 is formed, it is interior and between top oil reservoir and two oil reservoirs of bottom oil reservoir that 5 of packers are enclosed in annular space between sleeve pipe 8 and the oil pipe 7.The tubing string bottom of forming at oil pipe 7 is connected with ball-and-seat 3, and ball-and-seat is positioned at the bottom of packer 5, and the bottom of ball-and-seat 3 is connected with floral tube 4.Under in the tubing string that oil pipe 7 is formed oil well pump 2 is arranged, the position of oil well pump 2 is on the top of level pressure production mandrel 1.Oil well pump 2 connects sucker rods 6, and sucker rod 6 pumps and drives oil well pump 2, and the liquid of top oil reservoir and two oil reservoirs of bottom oil reservoir is extracted into ground.
Claims (1)
1. separate zone whole production flow string, form by level pressure production mandrel (1), oil well pump (2), ball-and-seat (3), floral tube (4), packer (5) and oil pipe (7), in sleeve pipe (8), hang and be fixed with the tubing string that oil pipe (7) is formed, it is characterized in that: be connected with level pressure production mandrel (1) on the tubing string that oil pipe (7) is formed, the position of level pressure production mandrel (1) is on the top of top oil reservoir; On the tubing string that oil pipe (7) is formed, be connected with packer (5), packer (5) seat is enclosed in two sleeve pipes (8) and the annular space between the oil pipe (7) between the oil reservoir, the tubing string bottom of forming at oil pipe (7) is connected with ball-and-seat (3), ball-and-seat (3) is positioned at packer (5) bottom, the bottom of ball-and-seat (3) is connected with floral tube (4), under in the tubing string that oil pipe (7) is formed oil well pump (2) is arranged, the position of oil well pump (2) is on the top of level pressure production mandrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920246842XU CN201568034U (en) | 2009-11-11 | 2009-11-11 | Selective zone commingled oil production pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920246842XU CN201568034U (en) | 2009-11-11 | 2009-11-11 | Selective zone commingled oil production pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568034U true CN201568034U (en) | 2010-09-01 |
Family
ID=42660321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920246842XU Expired - Lifetime CN201568034U (en) | 2009-11-11 | 2009-11-11 | Selective zone commingled oil production pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568034U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418500A (en) * | 2011-12-19 | 2012-04-18 | 中国石油天然气股份有限公司 | Directly controlled continuous quantitative layered production allocation oil pipe column |
| RU2488689C1 (en) * | 2012-02-29 | 2013-07-27 | Открытое акционерное общество "Нефтяная компания "Роснефть" | Dowhnole pump unit for simultaneous and separate operation of two formations |
| CN103998783A (en) * | 2011-12-15 | 2014-08-20 | 雷兹生产有限公司 | Horizontal and vertical well fluid pumping system |
| CN104989326A (en) * | 2015-06-24 | 2015-10-21 | 北京千永科技有限公司 | Regulating separate layer production string and separate layer oil production method |
| CN108518208A (en) * | 2018-03-21 | 2018-09-11 | 王凯 | Layered oil production device with ground program control function |
-
2009
- 2009-11-11 CN CN200920246842XU patent/CN201568034U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103998783A (en) * | 2011-12-15 | 2014-08-20 | 雷兹生产有限公司 | Horizontal and vertical well fluid pumping system |
| CN102418500A (en) * | 2011-12-19 | 2012-04-18 | 中国石油天然气股份有限公司 | Directly controlled continuous quantitative layered production allocation oil pipe column |
| CN102418500B (en) * | 2011-12-19 | 2015-01-28 | 中国石油天然气股份有限公司 | Directly controlled continuous quantitative layered production allocation oil pipe column |
| RU2488689C1 (en) * | 2012-02-29 | 2013-07-27 | Открытое акционерное общество "Нефтяная компания "Роснефть" | Dowhnole pump unit for simultaneous and separate operation of two formations |
| CN104989326A (en) * | 2015-06-24 | 2015-10-21 | 北京千永科技有限公司 | Regulating separate layer production string and separate layer oil production method |
| CN108518208A (en) * | 2018-03-21 | 2018-09-11 | 王凯 | Layered oil production device with ground program control function |
| CN108518208B (en) * | 2018-03-21 | 2021-01-26 | 王凯 | Layered oil production device with ground program control function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |