CN202673209U - Downhole operation inverse well-flushing device - Google Patents
Downhole operation inverse well-flushing device Download PDFInfo
- Publication number
- CN202673209U CN202673209U CN 201220311650 CN201220311650U CN202673209U CN 202673209 U CN202673209 U CN 202673209U CN 201220311650 CN201220311650 CN 201220311650 CN 201220311650 U CN201220311650 U CN 201220311650U CN 202673209 U CN202673209 U CN 202673209U
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- CN
- China
- Prior art keywords
- valve
- central tube
- spring
- downhole operation
- flushing device
- 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 relates to a downhole operation device, in particular to a downhole operation inverse well-flushing device. The technical scheme disclosed by the utility model is that the downhole operation inverse well-flushing device is mainly composed of an upper joint, an adjustment ring, a spring, a central tube, packings, a valve, a pressing sleeve, a sealing gasket and a lower joint, wherein the upper joint is connected with the lower joint by the central tube; the spring and the valve are arranged outside the central tube; the adjustment ring is arranged on the upper part of the spring; the pressing sleeve is fixed on the lower end of the valve; the sealing packing is arranged between the valve and the central tube; and the sealing packing and the sealing gasket are arranged between the valve and the pressing sleeve. The downhole operation inverse well-flushing device has the beneficial effects that the structure is simple, convenience in operation is achieved, the inverse well-flushing efficiency is effectively improved, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of underground work device, particularly a kind of underground work anti-flushing well device.
Background technology
In the modern technologies of oil exploitation, oil well is being annotated in the work progresss such as ash, sand washing, because it is dead that the many reasons oil pipe is annotated by mortar, the stuck phenomenon of oil pipe occurs, accident generally need to take measures to remedy after occuring, usually oil well is carried out the anti-flushing well operation, anti-flushing well device commonly used is constructed complicated at present, and efficient is low, affect the mining progress of oil well, reduced production.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of underground work anti-flushing well device is provided, and is simple in structure, easy to operate.
Its technical scheme is: mainly be comprised of top connection, adjustable ring, spring, central tube, packing, valve, gland, sealing mat, lower contact, be connected by central tube between top connection and the lower contact, the outside of described central tube is provided with spring and valve, the top of described spring is provided with adjustable ring, the bottom of valve is gland fixedly, be provided with sealed packing between valve and the central tube, be provided with sealed packing and sealing mat between valve and the gland.
Above-mentioned spring and the junction of adjustable ring are provided with gasket ring, and the junction of spring and valve is provided with lower gasket ring.
The beneficial effects of the utility model are: simple in structure, easy to operate, Effective Raise anti-flushing well efficient has improved production efficiency.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
The specific embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model mainly is comprised of top connection 1, adjustable ring 2, spring 4, central tube 5, sealed packing 6, valve 7, gland 8, sealing mat 9, lower contact 10, be connected by central tube 5 between top connection 1 and the lower contact 10, the outside of described central tube 5 is provided with spring 4 and valve 7, the top of described spring 4 is provided with adjustable ring 2, the bottom of valve 7 is gland 8 fixedly, be provided with sealed packing 6 between valve 7 and the central tube 5, be provided with sealed packing 6 and sealing mat 9 between valve 7 and the gland 8; Above-mentioned spring 4 is provided with gasket ring 3 with the junction of adjustable ring 2, and spring 4 is provided with lower gasket ring 11 with the junction of valve 7.
The annular pressure of oil-water well inner tube is during greater than the opening pressure of casing pressure valve, and valve is up, and the passage between annular space and inner tube is opened, and overcurrent can be realized the anti-flushing well operation, and is simple in structure, easy to operate, and Effective Raise anti-flushing well efficient has improved production efficiency.
Claims (2)
1. underground work anti-flushing well device, it is characterized in that: mainly be by top connection (1), adjustable ring (2), spring (4), central tube (5), sealed packing (6), valve (7), gland (8), sealing mat (9), lower contact (10) forms, be connected by central tube (5) between top connection (1) and the lower contact (10), the outside of described central tube (5) is provided with spring (4) and valve (7), the top of described spring (4) is provided with adjustable ring (2), the bottom of valve (7) is gland (8) fixedly, be provided with sealed packing (6) between valve (7) and the central tube (5), be provided with sealed packing (6) and sealing mat (9) between valve (7) and the gland (8).
2. underground work anti-flushing well device according to claim 1 is characterized in that: described spring (4) is provided with gasket ring (3) with the junction of adjustable ring (2), and spring (4) is provided with lower gasket ring (11) with the junction of valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311650 CN202673209U (en) | 2012-06-29 | 2012-06-29 | Downhole operation inverse well-flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311650 CN202673209U (en) | 2012-06-29 | 2012-06-29 | Downhole operation inverse well-flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673209U true CN202673209U (en) | 2013-01-16 |
Family
ID=47494120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311650 Expired - Fee Related CN202673209U (en) | 2012-06-29 | 2012-06-29 | Downhole operation inverse well-flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673209U (en) |
-
2012
- 2012-06-29 CN CN 201220311650 patent/CN202673209U/en not_active Expired - Fee Related
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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: 20130116 Termination date: 20130629 |