CN203515499U - Underground gas collection device - Google Patents
Underground gas collection device Download PDFInfo
- Publication number
- CN203515499U CN203515499U CN201320613077.7U CN201320613077U CN203515499U CN 203515499 U CN203515499 U CN 203515499U CN 201320613077 U CN201320613077 U CN 201320613077U CN 203515499 U CN203515499 U CN 203515499U
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- Prior art keywords
- gas
- gas collecting
- packer
- gas collection
- oil
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Abstract
The utility model discloses an underground gas collecting device, which is designed for realizing the underground gas collecting function. The gas collecting outer pipe of the gas collecting device is fixed in the sleeve through the packer, the pipe wall of the gas collecting outer pipe below the packer is provided with an eyelet, the pipe wall of the gas collecting outer pipe above the packer is provided with an oil sleeve communicating hole, a spiral gas collecting inner pipe is arranged in the gas collecting outer pipe, the top in the gas collecting outer pipe is a conical gas collecting cavity, and the top end of the gas collecting cavity is connected with an oil-gas mixing and pumping pump. The gas collecting device collects all the associated gas to the upper part of the gas collecting cavity through the settling separation effect, the associated gas and the crude oil are pumped into the production pipe column by the oil-gas mixing pump for outputting, the gas energy in the associated gas and the crude oil can be fully used for liquid lifting and conveying, and the investment, the power consumption and the pipeline back pressure can be greatly reduced.
Description
Technical field
The utility model relates to a kind of down-hole gas collecting apparatus, belongs to technical field of oil production engineering.
Background technology
At present, oil field at home associated gas recovery process mainly adopts collar piping recovery technology, comprises that well head constant pressure valve gas collection is mixed defeated and compressor boost gas collection is mixed defeated, and this technology can increase well head annex, improve workflow reengineering and operation expense, can not bring into play the advantage of air containing fluid in mechanical lift.At present, scene is certain applications oil gas mixed extraction pump, but there is no special down-hole associated gas gathering-device, causes the collection rate of associated gas not high.
Summary of the invention
The purpose of this utility model is to provide a kind of down-hole gas collecting apparatus, to realize down-hole gas collection function.
Concrete technology contents of the present utility model is as follows:
The gas collection outer tube of this gas collecting apparatus is fixed in sleeve pipe by packer, on the tube wall that is positioned at the gas collection outer tube below packer, be provided with eyelet, on the tube wall that is positioned at the gas collection outer tube above packer, be provided with oil jacket intercommunicating pore, in gas collection outer tube, be provided with spiral gas collection inner tube, the air collecting chamber that gas collection outer tube inner top is taper, air collecting chamber top connects oil gas mixed extraction pump.
This gas collecting apparatus is collected air collecting chamber top by sedimentation separation effect by all associated gases, with oil gas mixed extraction pump, associated gas and crude oil suction flow string is outer defeated, gas energy wherein can, fully for lifting and the conveying of liquid, can reduce investment, power consumption and pipeline back pressure greatly.
Accompanying drawing explanation
Fig. 1 is down-hole gas collecting apparatus structural representation.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This gas collecting apparatus mainly comprises eyelet 1, oil jacket intercommunicating pore 2, spiral gas collection inner tube 3, gas collection outer tube 4, air collecting chamber 5 and packer 7;
The gas collection outer tube 4 of this gas collecting apparatus is fixed in sleeve pipe 8 by packer 7, on the tube wall that is positioned at the gas collection outer tube 4 below packer 7, be provided with eyelet 1, on the tube wall that is positioned at the gas collection outer tube 4 above packer 7, be provided with oil jacket intercommunicating pore 2, in gas collection outer tube 4, be provided with spiral gas collection inner tube 3, the air collecting chamber 5 that gas collection outer tube 4 inner tops are taper, air collecting chamber 5 tops connect oil gas mixed extraction pump 6.
During on-the-spot application, gas-liquid mixture is roundabout up through eyelet 1, spiral gas collection inner tube 3.Due to the density variation of mixture, under sedimentation separation effect, mixture carries out gas-liquid separation in air collecting chamber 5.The oil jacket intercommunicating pore 2 of passing through under liquid enters sleeve pipe 8, forms producing fluid level and pump intake pressure, and gas is assembled at air collecting chamber 5 tops, by oil gas mixed extraction pump 6 suction flow strings.
Claims (1)
1. a down-hole gas collecting apparatus, is characterized in that:
The gas collection outer tube (4) of this gas collecting apparatus is fixed in sleeve pipe (8) by packer (7), on the tube wall of gas collection outer tube (4) that is positioned at packer (7) below, be provided with eyelet (1), on the tube wall of gas collection outer tube (4) that is positioned at packer (7) top, be provided with oil jacket intercommunicating pore (2), in gas collection outer tube (4), be provided with spiral gas collection inner tube (3), the air collecting chamber (5) that gas collection outer tube (4) inner top is taper, air collecting chamber (5) top connects oil gas mixed extraction pump (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613077.7U CN203515499U (en) | 2013-09-27 | 2013-09-27 | Underground gas collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320613077.7U CN203515499U (en) | 2013-09-27 | 2013-09-27 | Underground gas collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515499U true CN203515499U (en) | 2014-04-02 |
Family
ID=50374446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320613077.7U Expired - Fee Related CN203515499U (en) | 2013-09-27 | 2013-09-27 | Underground gas collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514523A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Underground gas collection device |
-
2013
- 2013-09-27 CN CN201320613077.7U patent/CN203515499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514523A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Underground gas collection device |
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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 |
Granted publication date: 20140402 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |