CN202832472U - Novel downhole gas anchor - Google Patents
Novel downhole gas anchor Download PDFInfo
- Publication number
- CN202832472U CN202832472U CN 201220522435 CN201220522435U CN202832472U CN 202832472 U CN202832472 U CN 202832472U CN 201220522435 CN201220522435 CN 201220522435 CN 201220522435 U CN201220522435 U CN 201220522435U CN 202832472 U CN202832472 U CN 202832472U
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- CN
- China
- Prior art keywords
- cylinder
- oil
- cylindrical shell
- shrouded
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a novel downhole gas anchor which belongs to the equipment of oilfield production. The novel downhole gas anchor comprises a cylinder. The top of the cylinder is fixed on a pump cylinder. A shrouded cylinder is installed outside the cylinder. The top of the inner cylinder is fixed on the inner side of the shrouded cylinder. An oil inlet hole is formed in the bottom of inner cylinder. An air outlet hole is formed in the cylinder above the shrouded cylinder. An air inlet hole is formed in the cylinder which is in the shrouded cylinder. An impeller under the cylinder is mounted on a support. A wire-wrapped screen is fixed at the bottom of the shrouded cylinder. The novel downhole gas anchor has the advantages of realizing the multiple separations of gas and oil which are good, resolving low pump admission coefficient of the oil-well pump, having good effect of oil ingress, ensuring normal oil production, having reasonable structure, and being used reliably.
Description
Technical field
The utility model provides a kind of field produces device, especially a kind of down-hole gas anchor.
Background technology
In oil-extracting well, fluid contained gas in down-hole is more, causes easily that coefficient of fullness reduces in the pump of oil well pump, the fuel-displaced weak effect of oil well, even can cause gas lock in the pump, cause oil well pump not fuel-displaced.And existing gas anchor reasonable structure is low, causes oil gas separation relatively poor, still has to some extent the problems referred to above.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Novel down-hole gas anchor, to improve oil gas separation.
The utility model is to realize like this, a kind of Novel down-hole gas anchor, it has cylindrical shell, and the upper end of cylindrical shell is fixed on the pump barrel, there is the cover cylinder outside of cylindrical shell, inner core is arranged in the cylindrical shell, and the upper end of inner core is fixed on the cover cylinder inwall, and fuel feed hole is arranged at the bottom of inner core, on the cylindrical shell of cover cylinder top venthole is arranged, on the inboard cylindrical shell of cover cylinder inlet hole is arranged, have impeller rack-mount below the cylindrical shell, the bottom of cover cylinder is fixed with wire-wrapped screen.
Adopt the down-hole gas anchor of said structure, can realize the separating for several times of oil gas, good separating effect efficiently solves the low problem of coefficient of fullness in the pump of oil well pump, and oil well is fuel-displaced effective, has guaranteed normal oil recovery production, and rational in infrastructure, uses reliable.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing further specifies the utility model.
As shown in drawings, a kind of Novel down-hole gas anchor of the utility model, it has cylindrical shell 10, and the upper end of cylindrical shell is fixed on the pump barrel 4, there is cover cylinder 14 outside of cylindrical shell, inner core 12 is arranged in the cylindrical shell, and the upper end of inner core is fixed on the cover cylinder inwall, and fuel feed hole 19 is arranged at the bottom of inner core, on the cylindrical shell of cover cylinder top venthole 11 is arranged, on the inboard cylindrical shell of cover cylinder inlet hole 13 is arranged, have impeller 15 to be installed on the support 16 below the cylindrical shell, the bottom of cover cylinder is fixed with wire-wrapped screen 18.
During use, this gas anchor is sent into the inboard of the sleeve pipe 17 of down-hole.The down-hole fluid is in wire-wrapped screen 18 enters the cover cylinder, and flowing of down-hole fluid will impeller be rotated, and the down-hole fluid is stirred, and carries out the first separation of oil gas, along with the rotation of down-hole liquid, produces centrifugal action, realizes secondary separation.In the process that the down-hole fluid upwards flows, there is slippage effect in gas, and the rate of climb is very fast, when the down-hole fluid after inlet hole 13 enters space between cylindrical shell and the inner core, the venthole 11 of gas on cylindrical shell enters oil sets annular space, and liquid falls because of heavier, realizes Re-isolation.The liquid that falls enters in the inner core through the fuel feed hole 19 of inner core bottom, and and then is evacuated to ground through oil pumper.
The top of this gas anchor is oil well pump.The same with existing oil well pump, pump barrel 4 is arranged on the oil well pump, piston 5 is installed in the pump barrel, on the first valve seat 7 of piston bottom the first valve ball 6 is installed, above second valve seat 3 on piston top the second valve ball 2 is installed, have on the 3rd valve seat 9, the three valve seats below the first valve seat the 3rd valve ball 8 is installed.The upper end of piston is fixed on the sucker rod 1.
Claims (1)
1. Novel down-hole gas anchor, it is characterized in that, it has cylindrical shell (10), and the upper end of cylindrical shell is fixed on the pump barrel (4), there is cover cylinder (14) outside of cylindrical shell, inner core (12) is arranged in the cylindrical shell, and the upper end of inner core is fixed on the cover cylinder inwall, and fuel feed hole (19) is arranged at the bottom of inner core, on the cylindrical shell of cover cylinder top venthole (11) is arranged, on the inboard cylindrical shell of cover cylinder inlet hole (13) is arranged, have impeller (15) to be installed on the support (16) below the cylindrical shell, the bottom of cover cylinder is fixed with wire-wrapped screen (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522435 CN202832472U (en) | 2012-10-12 | 2012-10-12 | Novel downhole gas anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522435 CN202832472U (en) | 2012-10-12 | 2012-10-12 | Novel downhole gas anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832472U true CN202832472U (en) | 2013-03-27 |
Family
ID=47944204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522435 Expired - Fee Related CN202832472U (en) | 2012-10-12 | 2012-10-12 | Novel downhole gas anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185420A (en) * | 2018-02-22 | 2019-08-30 | 中国石油化工股份有限公司 | A kind of ladder is continuously depressured supplementary potentiating oil pickup apparatus and method |
-
2012
- 2012-10-12 CN CN 201220522435 patent/CN202832472U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185420A (en) * | 2018-02-22 | 2019-08-30 | 中国石油化工股份有限公司 | A kind of ladder is continuously depressured supplementary potentiating oil pickup apparatus and method |
| CN110185420B (en) * | 2018-02-22 | 2022-12-06 | 中国石油化工股份有限公司 | Stepped continuous pressure-reducing and efficiency-increasing oil pumping device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20131012 |