CN201396097Y - Eccentric wellhead for well test - Google Patents
Eccentric wellhead for well test Download PDFInfo
- Publication number
- CN201396097Y CN201396097Y CN2009200966384U CN200920096638U CN201396097Y CN 201396097 Y CN201396097 Y CN 201396097Y CN 2009200966384 U CN2009200966384 U CN 2009200966384U CN 200920096638 U CN200920096638 U CN 200920096638U CN 201396097 Y CN201396097 Y CN 201396097Y
- Authority
- CN
- China
- Prior art keywords
- eccentric
- sealing ring
- well test
- wellhead
- oil pipe
- 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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- Examining Or Testing Airtightness (AREA)
Abstract
An eccentric wellhead for a well test is the key equipment for carrying out an annulus logging. By adopting a method of integrally processing a flange housing, the form-position tolerance is controlled and the assembling precision is improved. The eccentric wellhead has the advantages of high structural strength, flexile rotation and reliable sealing, and pressurized testing equipment can be mounted, so that the safety of the wellhead is ensured, and the needs for the well test are satisfied.
Description
Technical field
The utility model belongs to oil well test decentralized wellhead, especially when the oil well ordinary production, tester is arrived oil reservoir down by instrument connection and oil casing annular space, a kind of oil well test decentralized wellhead of admission stratum dynamic data.
Background technology
At present, there are a lot of problems aborning in the on-the-spot eccentric wellhead device that uses in oil field, mainly contain unreasonable structure, yielding leakage, eccentric oil pipe hang rotate dumb, can not be with the problems such as lubricator is installed of pressing, had a strong impact on normally carrying out of job safety and test job.
Summary of the invention
In order to overcome the deficiency that existing eccentric wellhead device exists in production test procedure, the utility model provides a kind of oil well test decentralized wellhead.This oil well test has the structural strength height with decentralized wellhead, and sealing is reliable, rotates flexibly, can be with the advantage of pressing installation testing equipment.
The technical scheme that its technical problem that solves the utility model adopts is: oil well test is designed to single integral body with the flange shell of decentralized wellhead, not only increased structural strength, also help the raising machining accuracy, make the form and position tolerance of its endoporus be easier to control.Eccentric oil pipe is hung the pattern of the flange shell that also is designed to pack into from the top down, has made things convenient for installation and maintenance.
Outside the flange shell of oil well test, fuel-displaced short tube is housed with decentralized wellhead.Bearing, eccentric oil pipe extension and lock ring are housed in the flange shell of oil well test with decentralized wellhead.Hang up at eccentric oil pipe sealing ring is housed, connect short tube, baffle plate and bolt.Eccentric oil pipe is hung and can freely be rotated in flange shell, so that the relative position of adjusting oil well inner oil tube and the formed annular space of sleeve pipe, separates winding when being beneficial to being lowered to and proposing of tester.
In use; oil well test is installed on the oil well casing four-way with decentralized wellhead; but the last screw thread end that eccentric oil pipe is hung is connected with the minor diameter tuningout blowout prevention box of the disconnected bar defencive function of band; the following screw thread end of eccentric oil pipe extension is connected with the flow string in the oil well; the connection short tube that eccentric oil pipe hangs up is connected with the special test gate, and the fuel-displaced short tube on the flange shell is connected with the surface production flow process.
The beneficial effects of the utility model are by improving structure and improving the process and assemble precision, to have solved the problems that existing eccentric wellhead device exists.Improved oil well test with the structural strength of decentralized wellhead and the flexibility of rotation, reached sealing reliably, can both guarantee well head safe, also satisfied the oil well test requirements of one's work with the requirement of pressing installation testing equipment.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the vertical section structure figure of oil well test with decentralized wellhead embodiment.
1. fuel-displaced short tubes among the figure; 2. flange shell; 3. lock ring; 4. eccentric oil pipe is hung; 5. connection short tube; 6. bolt; 7. baffle plate; 8. sealing ring; 9. sealing ring; 10. bearing; 11. sealing ring.
The specific embodiment
With reference to Fig. 1, oil well test is hung (4), connection short tube (5), bolt (6), baffle plate (7), sealing ring (8), sealing ring (9), bearing (10) and sealing ring (11) with decentralized wellhead by fuel-displaced short tube (1), flange shell (2), lock ring (3), eccentric oil pipe and is formed.When the assembling oil well test is used decentralized wellhead, the endoporus of fuel-displaced short tube (1) and the oil outlet in flange shell (2) outside are aligned, be welded to then on the flange shell (2).Bearing (10) is put on the inner shoulder of flange shell (2).Eccentric oil pipe is hung (4) load onto sealing ring (11) and sealing ring (9) successively, in the flange shell (2) of packing into then.Lock ring (3) is screwed in the screw thread of flange shell (2) upper end, prevent that eccentric oil pipe from hanging (4) and deviating from from flange shell (2).After will connecting short tube (5) and loading onto sealing ring (8), insert eccentric oil pipe and hang in the instrument connection on (4).At last, baffle plate (7) is enclosed within on the connection short tube (5), with bolt (6) baffle plate (7) and eccentric oil pipe is hung (4) and tighten together.
Claims (1)
- A kind of oil well test decentralized wellhead, hang (4), connection short tube (5), bolt (6), baffle plate (7), sealing ring (8), sealing ring (9), bearing (10) and sealing ring (11) by fuel-displaced short tube (1), flange shell (2), lock ring (3), eccentric oil pipe and form, it is characterized in that: fuel-displaced short tube (1) is housed in the outside of flange shell (2); Bearing (10), eccentric oil pipe extension (4) and lock ring (3) are housed in flange shell (2); Sealing ring (11), sealing ring (9), sealing ring (8) are housed on eccentric oil pipe extension (4), connect short tube (5), baffle plate (7) and bolt (6); Eccentric oil pipe is hung (4) and can freely be rotated in flange shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200966384U CN201396097Y (en) | 2009-05-06 | 2009-05-06 | Eccentric wellhead for well test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200966384U CN201396097Y (en) | 2009-05-06 | 2009-05-06 | Eccentric wellhead for well test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396097Y true CN201396097Y (en) | 2010-02-03 |
Family
ID=41618603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200966384U Expired - Fee Related CN201396097Y (en) | 2009-05-06 | 2009-05-06 | Eccentric wellhead for well test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396097Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672928A (en) * | 2014-11-21 | 2016-06-15 | 克拉玛依市昌达机械有限责任公司 | Application of wellhead-testing device for deviation prevention test to oil field |
-
2009
- 2009-05-06 CN CN2009200966384U patent/CN201396097Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672928A (en) * | 2014-11-21 | 2016-06-15 | 克拉玛依市昌达机械有限责任公司 | Application of wellhead-testing device for deviation prevention test to oil field |
| CN105672928B (en) * | 2014-11-21 | 2019-10-11 | 克拉玛依市昌达机械有限责任公司 | A kind of anti-bias shaft mouth test apparatus |
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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: 20100203 Termination date: 20120506 |