CN202810799U - Oil well formation testing suction device - Google Patents
Oil well formation testing suction device Download PDFInfo
- Publication number
- CN202810799U CN202810799U CN 201120491649 CN201120491649U CN202810799U CN 202810799 U CN202810799 U CN 202810799U CN 201120491649 CN201120491649 CN 201120491649 CN 201120491649 U CN201120491649 U CN 201120491649U CN 202810799 U CN202810799 U CN 202810799U
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- CN
- China
- Prior art keywords
- suction
- piston
- formation testing
- oil well
- piston rod
- 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
An oil well formation testing suction device is composed of a suction valve (1), a suction piston (2), a piston cylinder (3), ventilation holes (4), a packer (5), a sealing ring (6) and a fixing valve (7), and is characterized in that the suction valve (1) is disposed on the top end of the suction piston (2), the ventilation holes (4) are disposed at the middle upper part of the piston cylinder (3), the packer (5) is disposed on the outer side of the piston cylinder (3), the sealing ring (6) is disposed between the suction piston (2) and the piston cylinder (3), and the fixing valve (7) is disposed at the bottom of the piston cylinder (3); and by using the device, suction and fluid drainage can be conveniently done to oil wells where suction formation testing is carried out.
Description
Affiliated technical field
The utility model relates to a kind of oil well formation testing aspirator on the oilfield, this device has suction valve [1], suction piston [2], piston rod [3], spiracle [4], packer [5], joint ring [6] and standing valve [7] to form, and uses this device to aspirate discharge opeing to the oil well that aspirates formation testing easily.
Background technology
At present, known technology is not have oil well formation testing aspirator, its major defect to be that the formation testing suction of oil well all can't realize in the suction technique of Pressure Curve in Oil Testing Well.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of oil well formation testing aspirator, uses this device to aspirate discharge opeing to the oil well that aspirates formation testing easily.
The technical scheme that its technical problem that solves the utility model adopts is: adopt a kind of oil well formation testing aspirator, this device has suction valve [1], suction piston [2], piston rod [3], spiracle [4], packer [5], joint ring [6] and standing valve [7] to form, it is characterized in that: suction valve [1] is set on the top of suction piston [2], be used for suction piston rod [3] liquid; In the middle and upper part of piston rod [3] spiracle [4] is set, is used for the pressure of balanced seal ring upper and lower; At the arranged outside packer [5] of piston rod [3], be used for envelope and cut the annular space of tubing and casing; Between suction piston [2] and piston rod [3], joint ring [6] is set, is used for the space between sealing suction piston [2] and the piston rod [3]; In the bottom of piston rod [3] standing valve [7] is set, when suction piston [2] is up, standing valve [7] is opened, liquid is inhaled into piston rod, when suction piston [2] is descending, standing valve [7] autoshutdown makes piston rod be in closed state, uses this device to aspirate discharge opeing to the oil well that aspirates formation testing easily.
The beneficial effects of the utility model: by field trial, the utility model compared with prior art uses this device to aspirate discharge opeing to the oil well that aspirates formation testing easily.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
(accompanying drawing) is the schematic diagram of a kind of structure embodiment of oil well formation testing aspirator.
Among the figure: 1. aspirate valve; 2. suction piston; 3. piston rod; 4. spiracle; 5. packer; 6. joint ring; 7. standing valve.
The specific embodiment
In the accompanying drawings, adopt a kind of oil well formation testing aspirator, this device has suction valve [1], suction piston [2], piston rod [3], spiracle [4], packer [5], joint ring [6] and standing valve [7] to form, it is characterized in that: suction valve [1] is set on the top of suction piston [2], be used for suction piston rod [3] liquid; In the middle and upper part of piston rod [3] spiracle [4] is set, is used for the pressure of balanced seal ring upper and lower; At the arranged outside packer [5] of piston rod [3], be used for envelope and cut the annular space of tubing and casing; Between suction piston [2] and piston rod [3], joint ring [6] is set, is used for the space between sealing suction piston [2] and the piston rod [3]; In the bottom of piston rod [3] standing valve [7] is set, when suction piston [2] is up, standing valve [7] is opened, liquid is inhaled into piston rod, when suction piston [2] is descending, standing valve [7] autoshutdown makes piston rod be in closed state, uses this device to aspirate discharge opeing to the oil well that aspirates formation testing easily.
Claims (1)
1. oil well formation testing aspirator, this device has suction valve [1], suction piston [2], piston rod [3], spiracle [4], packer [5], joint ring [6] and standing valve [7] to form, it is characterized in that: suction valve [1] is set on the top of suction piston [2], in the middle and upper part of piston rod [3] spiracle [4] is set, arranged outside packer [5] at piston rod [3], between suction piston [2] and piston rod [3], joint ring [6] is set, in the bottom of piston rod [3] standing valve [7] is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120491649 CN202810799U (en) | 2011-11-19 | 2011-11-19 | Oil well formation testing suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120491649 CN202810799U (en) | 2011-11-19 | 2011-11-19 | Oil well formation testing suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810799U true CN202810799U (en) | 2013-03-20 |
Family
ID=47869697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120491649 Expired - Fee Related CN202810799U (en) | 2011-11-19 | 2011-11-19 | Oil well formation testing suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676054A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | A kind of underground restrictor fishing tool and operating method |
-
2011
- 2011-11-19 CN CN 201120491649 patent/CN202810799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676054A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | A kind of underground restrictor fishing tool and operating method |
| CN107676054B (en) * | 2017-10-25 | 2023-11-28 | 中国石油天然气股份有限公司 | Downhole choke fishing tool and operation 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: 20130320 Termination date: 20131119 |