CN101265802A - Same well oil extraction gas injection system - Google Patents
Same well oil extraction gas injection system Download PDFInfo
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- CN101265802A CN101265802A CNA2008101049151A CN200810104915A CN101265802A CN 101265802 A CN101265802 A CN 101265802A CN A2008101049151 A CNA2008101049151 A CN A2008101049151A CN 200810104915 A CN200810104915 A CN 200810104915A CN 101265802 A CN101265802 A CN 101265802A
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- gas injection
- hole
- oil
- oil pipe
- oil extraction
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Abstract
The invention discloses a gas injection system of oil extraction in the same well, which comprises a Y joint, the upper end of the Y joint is connected with an external pipe, and the inner part of the Y joint body is provided with an injection through-hole and an oil extraction through-hole, wherein, the upper part of the injection through-hole is connected with an inserting sealing cylinder, in the inserting sealing cylinder a first injection oil pipe is inserted, the bottom of the injection through-hole is connected with the upper part of a second injection oil pipe, the bottom of the second injection oil pipe is arranged on an injection layer and the oil extraction through-hole is connected with an electric pump unit. By using the gas injection system of oil extraction in the same well, the aim of simultaneous oil extraction can be achieved without influencing the injection, and vice versa. Therefore, one well can play two roles, which greatly increases the development benefit of a single well.
Description
Technical field
The present invention relates to a kind of oil field injection and extraction system, relate in particular to a kind of same well oil extraction gas injection system.
Background technology
At present, in the oil extraction gas injection operation of oil field, all be conventional individual well gas injection, perhaps single well production is seldom considered same well oil extraction gas injection, but at sea the oil field is subjected to platform constraints, and the oil well limited amount proposes a well in this case and uses highly significant more; In addition under special circumstances; for example, the low pressure gas of present emptying burning need be injected the stratum, at this time not consider same well oil extraction gas injection for the consideration of protection gas resource; will not recover the oil with this mouthful well has been cost, in the oil extraction gas injection operation at present same well oil extraction gas injection system is not arranged also.
Summary of the invention
The objective of the invention is to overcome that prior art can only singly be recovered the oil or the deficiency of single gas injection, same well oil extraction gas injection system is provided, it can recover the oil and gas injection in same well simultaneously.
Same well oil extraction gas injection system of the present invention, it comprises the Y joint, described Y joint top is connected with an outer tube, have a gas injection through hole and oil recovery through hole in its body, the top of described gas injection through hole is connected with one and inserts sealing drum, is inserted with one first gas injection oil pipe in described insertion sealing drum, and the bottom of described gas injection through hole links to each other with the top of the second gas injection oil pipe, the bottom of the described second gas injection oil pipe is arranged on the gas injection layer, and described oil recovery through hole links to each other with the electric pump unit.
Adopt same well oil extraction gas injection system of the present invention, can reach the purpose of recovering the oil simultaneously under the situation that does not influence gas injection, vice versa, a bite well can play two kinds of functions, improves the development benefit of individual well greatly.
Description of drawings
Fig. 1 is the structural representation of same well oil extraction gas injection system of the present invention;
Fig. 2 is that the axis of no-feathering of the Y joint in the system shown in Fig. 1 is to sectional view;
Fig. 3 is the anti-structure sectional view of telling ball-and-seat that returns shown in Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done to describe in detail.
As shown in drawings, for can be to the stratum gas injection when recovering the oil in same well, its crucial part will be set up three passages exactly: 17, one oil recovery passages 16 of a gas injection passage, the bleed passage 15 that also has an oil recovery could guarantee the ordinary production of oil well like this.Adopt special Y joint tubing string here, set up two passages below the Y joint, a passage hangs electric submersible pump and upwards recovers the oil the downward gas injection of passage from producing horizon 18; Also set up two passages above, a passage is upwards fuel-displaced, the downward gas injection of another passage; And the annular space of two passages and sleeve pipe is used as the exhaust passage of oil recovery.So just realized same well oil extraction gas injection technology.
Same well oil extraction gas injection system of the present invention, it comprises Y joint 4, described Y joint top is connected with an outer tube 9, have a gas injection through hole and oil recovery through hole in its body 10, the top of described gas injection through hole is connected with one and inserts sealing drum 8, in described insertion sealing drum 8, be inserted with one first gas injection oil pipe 1, the bottom of described gas injection through hole links to each other with the top of the second gas injection oil pipe, the bottom of the described second gas injection oil pipe is arranged on gas injection layer 19, and described oil recovery through hole links to each other with electric pump unit 5.Special Y joint 4 is keys of native system, and its top connects gas injection oil pipe 1, outer tube 9, the internal channel gas injection of gas injection oil pipe 1, and the ring control that it and outer tube 9 form is used for recovering the oil; The lower part of special Y joint 4 two passages arranged side by side, a passage hangs electric submersible pump 5 and sets up the oil recovery passage, and a passage continues to be communicated with gas injection oil pipe 1, and gas is annotated the purpose stratum always.
Preferably comprise in the described same well oil extraction gas injection system and prevent returning telling ball-and-seat 6, described anti-returning told ball-and-seat 6 and comprised the top connection 11 that has through hole in it, be arranged on the well-flushing ball seat 12 in the described top connection 11, be connected the lower contact 14 of described top connection 11 bottoms, the bottom has injecting hole in the described lower contact, patchhole, the through hole port of export that is in described top connection in described lower contact 14 is connected with the bonnet of a ball-and-seat 13, the valve rod of described ball-and-seat is inserted in the patchhole that the bottom is provided with in the described lower contact, the bottom of the described second gas injection oil pipe links to each other with described top connection, described lower contact bottom links to each other with the 3rd gas injection oil pipe top, and the bottom of described the 3rd gas injection oil pipe bottom is arranged on gas injection layer 19.Supportingly anti-return the ball-and-seat of telling washing well, just make this system perfect solution all arranged in well workover and secure context.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within the protection of the present invention.
Claims (2)
1. same well oil extraction gas injection system, it comprises the Y joint, it is characterized in that: described Y joint top is connected with an outer tube, have a gas injection through hole and oil recovery through hole in its body, the top of described gas injection through hole is connected with one and inserts sealing drum, in described insertion sealing drum, be inserted with one first gas injection oil pipe, the bottom of described gas injection through hole links to each other with the top of the second gas injection oil pipe, the bottom of the described second gas injection oil pipe is arranged on the gas injection layer, and described oil recovery through hole links to each other with the electric pump unit.
2. same well oil extraction gas injection system according to claim 1, it is characterized in that: it also comprises prevents returning telling ball-and-seat, described anti-returning told ball-and-seat and comprised the top connection that has through hole in it, be arranged on the well-flushing ball seat in the described top connection, be connected the lower contact of described top connection bottom, the bottom has injecting hole in the described lower contact, patchhole, the through hole port of export that is in described top connection in described lower contact is connected with the bonnet of a ball-and-seat, the valve rod of described ball-and-seat is inserted in the patchhole that the bottom is provided with in the described lower contact, the bottom of the described second gas injection oil pipe links to each other with described top connection, described lower contact bottom links to each other with the 3rd gas injection oil pipe top, and the bottom of described the 3rd gas injection oil pipe bottom is arranged on the gas injection layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101049151A CN101265802A (en) | 2008-04-24 | 2008-04-24 | Same well oil extraction gas injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101049151A CN101265802A (en) | 2008-04-24 | 2008-04-24 | Same well oil extraction gas injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101265802A true CN101265802A (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101049151A Pending CN101265802A (en) | 2008-04-24 | 2008-04-24 | Same well oil extraction gas injection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101265802A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN103867171A (en) * | 2012-12-10 | 2014-06-18 | 中国海洋石油总公司 | Production pipe string of electric submersible pump for offshore heavy oil thermal recovery |
| CN105422057A (en) * | 2015-12-31 | 2016-03-23 | 中国石油天然气股份有限公司 | Oil extraction method for ultra-low permeable reservoir or dense reservoir |
| CN105545272A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Oil exploitation method for ultra-low-permeability water-sensitive reservoir/tight reservoir |
| WO2016107382A1 (en) * | 2014-12-31 | 2016-07-07 | 山东威马泵业股份有限公司 | Method and device for forcibly lifting water or oil by air energy |
| CN111911085A (en) * | 2019-05-10 | 2020-11-10 | 中国石油化工股份有限公司 | Pipe column for opening reservoir |
-
2008
- 2008-04-24 CN CNA2008101049151A patent/CN101265802A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536183A (en) * | 2012-01-31 | 2012-07-04 | 中国石油化工股份有限公司 | Underground gas injection pipe column |
| CN103867171A (en) * | 2012-12-10 | 2014-06-18 | 中国海洋石油总公司 | Production pipe string of electric submersible pump for offshore heavy oil thermal recovery |
| CN103867171B (en) * | 2012-12-10 | 2016-06-08 | 中国海洋石油总公司 | A kind of Offshore Heavy Oil Field thermal recovery electric submersible pump producing tubular column and application thereof |
| WO2016107382A1 (en) * | 2014-12-31 | 2016-07-07 | 山东威马泵业股份有限公司 | Method and device for forcibly lifting water or oil by air energy |
| CN105422057A (en) * | 2015-12-31 | 2016-03-23 | 中国石油天然气股份有限公司 | Oil extraction method for ultra-low permeable reservoir or dense reservoir |
| CN105545272A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Oil exploitation method for ultra-low-permeability water-sensitive reservoir/tight reservoir |
| CN105545272B (en) * | 2015-12-31 | 2018-06-01 | 中国石油天然气股份有限公司 | The oil production method of extra-low permeability water-sensitive reservoir/compact reservoir |
| CN111911085A (en) * | 2019-05-10 | 2020-11-10 | 中国石油化工股份有限公司 | Pipe column for opening reservoir |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080917 |