CN2687333Y - Thick oil production measuring well head device - Google Patents
Thick oil production measuring well head device Download PDFInfo
- Publication number
- CN2687333Y CN2687333Y CNU2004200304507U CN200420030450U CN2687333Y CN 2687333 Y CN2687333 Y CN 2687333Y CN U2004200304507 U CNU2004200304507 U CN U2004200304507U CN 200420030450 U CN200420030450 U CN 200420030450U CN 2687333 Y CN2687333 Y CN 2687333Y
- Authority
- CN
- China
- Prior art keywords
- well
- well head
- eccentric bushing
- testing
- head 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 discloses a thick oil production measuring well head device belonging to the oil well producing well head device. When the thick oil is tested, the oil tube is bended in the well because of the well deviation, bending, etc. At present, using the fixed or single turning type well head device in the testing well has the abuse of testing inconvenience and loose sealing, etc., which affects the proceeding of the testing. The utility model adopts the structure in which the upper and lower eccentric sleeve and the flat surface ball bearing are provided on the mandrel hanger to overcome the shortcoming, which realizes the autorotation of the fuel tube and the rotation of the eccentric pipe column. The utility model enables the test port to rotate around the center of the sleeve pipe, which achieves the purpose of preventing the testing cable twisting the oil tube in the well or encountering block and baffle. The device has the advantages of simple structure and easy use, and can be popularized widely in the thick crude thermal process well head.
Description
Technical field:
The utility model relates to a kind of heavy oil production shaft mouth test apparatus, belongs to well recovery wellhead assembly class.
Background technology:
Need in the thickened oil recovery process constantly to carrying out parameter testing in the well, fixed or the single rotatable wellhead assembly of the many employings of existing technology, its sealing performance can be reliable, but test is inconvenient, and single examination shaft mouth test apparatus that changes, though convenient test, it is unreliable to seal, be prone to seepage, above-mentioned in addition shaft mouth test apparatus often occurs also in use that downhole instrument is hampered or rope curls the oil pipe phenomenon in well.
The utility model content:
The utility model purpose is in order to overcome above-mentioned shortcoming, and a kind of heavy oil production shaft mouth test apparatus that provides.This device sealing is reliable, can prevent during oil well test that downhole instrument is hampered in oil pipe and sleeve pipe annular space, the generation of card or rope coiled tubing phenomenon.
The utility model is separated and is achieved in that
For achieving the above object, the utility model is that eccentric bushing on is equipped with in the tubing hanger outside on well head, and links a following eccentric bushing by fixed pin shaft, and described eccentric bushing and oil pipe are connected to each other to one.
Following eccentric bushing is located in above the casing flange by a plane bearing.
The utility model is compared with existing technology has remarkable result:
Because this device has adopted the well head base oil pipe hanger outside in existing technology, upper and lower eccentric bushing is housed, and upper and lower eccentric bushing and tubing hanger are connected as a single entity by the bearing pin lock dog, therefore, tubing hanger can be rotated the realization rotation voluntarily, can also realize eccentric rotary with upper and lower eccentric bushing, thus, can avoid that instrument is hampered in the down-hole, the generation of card and coiled tubing phenomenon, in addition, the utility model has adopted resistant to elevated temperatures poly-tetrafluoro packing between upper and lower eccentric bushing and overcoat, make that sealing is more reliable.
Description of drawings:
Figure is a structural representation of the present utility model.
Among the figure by 1, tubing hanger, 2, go up eccentric bushing, 3, sealed packing, 4, overcoat, 5, eccentric bushing down, 6, bearing, 7, lock dog, 8, casing flange, 9, bearing pin, 10, plane bearing, 11, oil pipe, 12, tubing valve forms.
The specific embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated:
To be arranged in well head intracardiac for tubing hanger 1 among the figure, external surface is step in the taper shape, can hang oil pipe 11, last eccentric bushing 2 is that symmetry endoporus on two its circles of circular cover at tubing valve 12 two ends overlap is eccentric shape with following eccentric bushing 5,160～170 millimeters of diameter of bores, two eccentric bushings connect together with bearing pin 9.
Tubing hanger 1 is located in down on the eccentric bushing 5 by a plane ball bearing 10, thereby instrument connection can be around the oil pipe rotation, i.e. tubing string energy rotation, thus can implement to remove cable or the steel wire that is wrapped in above the tubing string more easily.
Following eccentric bushing 5 is by a plane ball bearing 6, be located in above the casing flange 8, last eccentric bushing 2 and tubing hanger are connected as a single entity by removable lock dog 7, therefore, can make, following eccentric bushing 2,5 and tubing hanger be linked as together, do eccentric rotation around the cover tube hub, like this when test, when instrument removes in annular space, as occur being hampered, when card or rope coiled tubing phenomenon, can tubing hanger and top instrument connection thereof be rotated all the time around the sleeve pipe central synchronous by rotating the eccentric oil pipe post, reach and separate resistance thereby changed in the well because the crooked phase time position of " crescent moon " annular space section in pit shaft of causing, unfreezing and separate the winding purpose.
The endoporus of upper and lower eccentric bushing and cylindrical are adding man-hour, should guarantee endoporus center uniformity, and tubing hanger wants a clamping car to become with the coupling part of upper and lower eccentric bushing, so that reach coaxial required precision.Eccentric bushing, the tubing hanger outside have an overcoat 4 hard-pressed bales up and down.
Claims (2)
1, a kind of heavy oil production shaft mouth test apparatus, it is characterized in that: tubing hanger (1) is housed on the described well head, the outside has eccentric bushing on (2) connecting a following eccentric bushing (5) by solid bearing pin (9), last eccentric bushing (2) links into an integrated entity by mobile lock dog (7) and tubing hanger (1), and eccentric bushing, the tubing hanger outside have an overcoat (4) hard-pressed bale up and down.
2, a kind of heavy oil production shaft mouth test according to claim 1 is characterized in that: following eccentric bushing (5) is located in above the casing flange (8) by a plane ball bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200304507U CN2687333Y (en) | 2004-02-20 | 2004-02-20 | Thick oil production measuring well head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200304507U CN2687333Y (en) | 2004-02-20 | 2004-02-20 | Thick oil production measuring well head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687333Y true CN2687333Y (en) | 2005-03-23 |
Family
ID=34670388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200304507U Expired - Fee Related CN2687333Y (en) | 2004-02-20 | 2004-02-20 | Thick oil production measuring well head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687333Y (en) |
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 |
| CN106401520A (en) * | 2016-11-22 | 2017-02-15 | 袁旭东 | Thick oil extraction test well mouth device |
-
2004
- 2004-02-20 CN CNU2004200304507U patent/CN2687333Y/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN106401520A (en) * | 2016-11-22 | 2017-02-15 | 袁旭东 | Thick oil extraction test well mouth device |
| CN106401520B (en) * | 2016-11-22 | 2018-11-16 | 袁旭东 | A kind of thick oil production measuring well head device |
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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: 20050323 Termination date: 20120220 |