CN103174404A - Gas drive oil extraction structure convenient to detect - Google Patents
Gas drive oil extraction structure convenient to detect Download PDFInfo
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- CN103174404A CN103174404A CN2011104383343A CN201110438334A CN103174404A CN 103174404 A CN103174404 A CN 103174404A CN 2011104383343 A CN2011104383343 A CN 2011104383343A CN 201110438334 A CN201110438334 A CN 201110438334A CN 103174404 A CN103174404 A CN 103174404A
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Abstract
The invention relates to the field of oil field oil extraction, in particular to a gas drive oil extraction structure convenient to detect. The gas drive oil extraction structure is characterized in that a throat is in an annular triangle protruding structure, two or more than two nozzles are distributed below the throat, the nozzles are distributed on the inner wall of a gas mixing pipe in an up-tilting mode, and the nozzles in up-tilting structures guarantees the fact that natural gas output at the nozzle ends can smoothly enter the throat. The diameter of a middle through hole formed between the nozzles is larger than that of a middle through hole formed by protruding of the throat, and accordingly a pressure gage, a thermometer and other measuring equipment can extend to an oil layer at the bottom of a well for corresponding detection from the middle through hole of the throat and a gap between the nozzles, and the up-tilting structures of the nozzles guarantee that the natural gas output at the nozzle ends can enter the throat smoothly.
Description
Technical field
The present invention relates to oil extraction in oil field field, particularly a kind of gas drive oil recovery structure of being convenient to detect.
Background technology
oil recovery benefit water and the chemical agent hydromining oil more in the past that recovers the oil due to gas drive has greatly improved, widely popularize in the oil field gradually, as the applicant as shown in the gas drive oil production method patent of first to file, application number: 200310105891.9, it is to pass through jet pump with gas as motive fluid that gas drive is recovered the oil, produce vacuum or low-pressure area, make well liquid flow to low-pressure area, nozzle is converted to swiftly flowing gas kinetic energy with the pressure energy of the high voltage power gas of flowing through, and after mouth, form region of no pressure or low-pressure area between trunnion, the product of the oil reservoir of swiftly flowing low-pressure gas and the low-pressure area that is inhaled into is after forming mixed gas thing between trunnion, be pushed to ground and reach the oil recovery purpose.But the nozzle in this application is positioned at the medium position of gas mixing pipe, makes the measuring apparatuss such as thermometer, pressure gauge to be entered in oil reservoir by pipeline and detects accordingly.
Summary of the invention
The purpose of this invention is to provide a kind of gas drive oil recovery structure of being convenient in the gas drive oil recovery process, the numerical value such as reservoir temperature, pressure be carried out corresponding detection.
The technical scheme that the present invention solves its technical problem employing is: a kind of gas drive oil recovery structure of being convenient to detect, which comprises at least the gas-drive jet pump that is consisted of by gas mixing pipe, oil pipe, sleeve pipe, the oil pipe inner sleeve has gas mixing pipe, the oil pipe overcoat has sleeve pipe, trunnion is arranged in gas mixing pipe, there is nozzle the trunnion below, the top of gas-drive jet pump is communicated with pipeline by mounting flange and packing seat, it is characterized in that: trunnion is annular triangular shape raised structures, the trunnion below is distributed with two or more nozzles, and each nozzle is acclivitous to be distributed on the gas mixing pipe inwall.
Described two or more nozzle is that the same level position along the circumferential direction is evenly distributed on the gas mixing pipe inwall.
A hypotenuse angle of inclination of the angle that described nozzle is tilted to and triangular shape trunnion is identical.
The angle that described nozzle is tilted to is the 30-40 degree, and the port of export extension line direction of nozzle is positioned at the above position of hypotenuse on the trunnion of opposite.
The intermediate throughholes diameter that described annular trunnion projection forms is not more than the intermediate throughholes diameter that forms between each nozzle.
The intermediate throughholes diameter that described annular trunnion projection forms is 25-35mm, and the intermediate throughholes diameter that forms between each nozzle is 30-45mm.
Be fixed with packer between described oil pipe bottom interior surface and gas mixing pipe bottom outer surface.
The invention has the beneficial effects as follows: due to designs of nozzles is become along the circumferential direction equally distributed a plurality of, the intermediate throughholes diameter that makes the intermediate throughholes diameter that forms between nozzle form greater than the trunnion projection, therefore the measureing equipments such as pressure gauge, thermometer can extend to from the gap between trunnion intermediate throughholes and each nozzle in the oil reservoir in shaft bottom and detect accordingly, and the acclivitous structure of nozzle has guaranteed that the natural gas of nozzle end output can enter trunnion smoothly.
The invention will be further described below in conjunction with the embodiment accompanying drawing.
Description of drawings
Fig. 1 structural representation of the present invention;
Fig. 2 is the sectional drawing at nozzle place;
In figure: 1, oil reservoir; 2, packer; 3, nozzle; 4, trunnion; 5, sleeve pipe; 6, oil pipe; 7, gas mixing pipe; 8, flange.
The concrete real mode of revolving:
Embodiment 1
As scheme as shown in l, the gas drive oil recovery structure that the present invention is convenient to detect, which comprises at least the gas-drive jet pump that is consisted of by gas mixing pipe 6, oil pipe 7, sleeve pipe 5, the top of gas-drive jet pump is communicated with pipeline by mounting flange 8 and packing seat, the structure of packing seat and pipeline is identical with gas drive oil production method patent structure in first to file, does not describe in detail at this.
Two or more nozzles 3 are that the same level position along the circumferential direction is evenly distributed on gas mixing pipe 6 inwalls.
Be fixed with packer 2 between oil pipe 7 bottom interior surfaces and gas mixing pipe 6 bottom outer surfaces, the above 5m to 15m in position that the position of packer 2 is positioned at oil reservoir l locates, and bottom, the space between oil pipe 7 and gas mixing pipe 6 is sealed.
The intermediate throughholes diameter that annular trunnion projection forms is not more than the intermediate throughholes diameter that forms between each nozzle, and the intermediate throughholes diameter that annular trunnion projection forms is 25-35mm, and the intermediate throughholes diameter that forms between each nozzle is 30-45mm.
Embodiment 2
A hypotenuse angle of inclination of the angle that nozzle 3 is tilted to and triangular shape trunnion 4 is identical.Generally the angle between annular trunnion 4 upper end closing in place hypotenuses and gas mixing pipe 6 inwalls is the 30-40 degree, so the angle that nozzle 3 is tilted to is the 30-40 degree equally, and the port of export extension line direction of nozzle 3 is positioned at the above position of hypotenuse on opposite trunnion 4, such angle can guarantee that the natural gas of nozzle 3 ejection can enter the zone of trunnion 4 or more smoothly, formation bottom low-pressure area.
As shown in Figure 2, trunnion 4 belows are distributed with four nozzles 3, four nozzles 3 are distributed on gas mixing pipe 6 inwalls in the mode of respectively dividing 90 degree angles of circumference equally, distance between two nozzles 3 of symmetric position is 40mm, the intermediate throughholes diameter that annular trunnion 4 projections form is 35mm, and diameter is to pass in the oil reservoir that extends to the shaft bottom in the thermometer of 32mm or the pressure gauge through hole that all can form through between intermediate throughholes that the trunnion projection forms and each nozzle to detect accordingly.
Claims (6)
1. gas drive oil recovery structure of being convenient to detect, which comprises at least the gas-drive jet pump that is consisted of by gas mixing pipe, oil pipe, sleeve pipe, the oil pipe inner sleeve has gas mixing pipe, the oil pipe overcoat has sleeve pipe, and trunnion is arranged in gas mixing pipe, and nozzle is arranged below trunnion, the top of gas-drive jet pump is communicated with pipeline by mounting flange and packing seat, it is characterized in that: trunnion is annular triangular shape raised structures, is distributed with two or more nozzles below trunnion, and each nozzle is acclivitous to be distributed on the gas mixing pipe inwall.
2. a kind of gas drive oil recovery structure of being convenient to detect according to claim 1 is characterized in that: described two or more nozzles are that the same level position along the circumferential direction is evenly distributed on the gas mixing pipe inwall.
3. a kind of gas drive oil recovery structure of being convenient to detect according to claim 1 is characterized in that: a hypotenuse angle of inclination of the angle that described nozzle is tilted to and triangular shape trunnion is identical.
4. a kind of gas drive oil recovery structure of being convenient to detect according to claim 1, it is characterized in that: the angle that described nozzle is tilted to is the 30-40 degree, the port of export extension line direction of nozzle is positioned at the above position of hypotenuse on the trunnion of opposite.
5. a kind of gas drive oil recovery structure of being convenient to detect according to claim 1 is characterized in that: the intermediate throughholes diameter that described annular trunnion projection forms is not more than the intermediate throughholes diameter that forms between each nozzle.
6. a kind of gas drive oil recovery structure of being convenient to detect according to claim 5 is characterized in that: the intermediate throughholes diameter that described annular trunnion projection forms is 25-35mm, and the intermediate throughholes diameter that forms between each nozzle is 30-45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438334.3A CN103174404B (en) | 2011-12-24 | 2011-12-24 | A kind of gas drive oil extraction structure being easy to detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438334.3A CN103174404B (en) | 2011-12-24 | 2011-12-24 | A kind of gas drive oil extraction structure being easy to detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174404A true CN103174404A (en) | 2013-06-26 |
| CN103174404B CN103174404B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110438334.3A Active CN103174404B (en) | 2011-12-24 | 2011-12-24 | A kind of gas drive oil extraction structure being easy to detection |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090895U (en) * | 1989-11-01 | 1991-12-18 | 赵谦 | Pneumatic jet pump for sucking liquid |
| CN1201863A (en) * | 1997-06-11 | 1998-12-16 | 蒋厚良 | Sand washing process |
| CN2649773Y (en) * | 2003-11-06 | 2004-10-20 | 唐坤喜 | Gas-drive oil-production apparatus |
| US20060021754A1 (en) * | 2002-03-11 | 2006-02-02 | Khomynets Zinoviy D | Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| CN202431260U (en) * | 2011-12-24 | 2012-09-12 | 唐坤喜 | Gas drive oil extraction device being convenient in detection |
-
2011
- 2011-12-24 CN CN201110438334.3A patent/CN103174404B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090895U (en) * | 1989-11-01 | 1991-12-18 | 赵谦 | Pneumatic jet pump for sucking liquid |
| CN1201863A (en) * | 1997-06-11 | 1998-12-16 | 蒋厚良 | Sand washing process |
| US20060021754A1 (en) * | 2002-03-11 | 2006-02-02 | Khomynets Zinoviy D | Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| CN2649773Y (en) * | 2003-11-06 | 2004-10-20 | 唐坤喜 | Gas-drive oil-production apparatus |
| CN202431260U (en) * | 2011-12-24 | 2012-09-12 | 唐坤喜 | Gas drive oil extraction device being convenient in detection |
Non-Patent Citations (2)
| Title |
|---|
| 夏柏如，等: "一种钻孔水力采煤系统的研究", 《地学前缘》, vol. 15, no. 4, 31 July 2008 (2008-07-31) * |
| 段新胜，等: "环形多喷嘴射流泵结构参数的实验研究", 《探矿工程》, no. 6, 31 December 1999 (1999-12-31) * |
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| Publication number | Publication date |
|---|---|
| CN103174404B (en) | 2016-06-15 |
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