CN201835784U - Well head eccentric testing device for direct-drive screw pump wells - Google Patents
Well head eccentric testing device for direct-drive screw pump wells Download PDFInfo
- Publication number
- CN201835784U CN201835784U CN2010202358475U CN201020235847U CN201835784U CN 201835784 U CN201835784 U CN 201835784U CN 2010202358475 U CN2010202358475 U CN 2010202358475U CN 201020235847 U CN201020235847 U CN 201020235847U CN 201835784 U CN201835784 U CN 201835784U
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- tubing hanger
- well head
- screw pump
- test
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Abstract
The utility model relates to a well head eccentric testing device for direct-drive screw pump wells, which mainly solves the problem parameters of underground well temperature, current pressure, density, production fluid profile and the like can not be tracked and tested due to the fact that testing channels are not arranged at a well head of an existing direct-drive screw pump well. The well head eccentric testing device is characterized in that an obliquely arranged testing conduit is fixed on a flange plate of a tubing hanger, a combined sealing testing valve is radially fixed onto the testing conduit, a dustproof cap is disposed at the top end of the testing conduit, an eccentric throw e is reserved between the center of the tubing hanger and the center of a four-way well head, an obliquely arranged testing pore passage is disposed inside the tubing hanger, and the upper end and the lower end of the testing pore passage are respectively communicated with the testing conduit and a casing-tubing annulus. Thrust ball bearings are arranged on a shaft shoulder of the tubing hanger and a support step of the four-way well head. A testing instrument of the well head eccentric testing device can smoothly reach a well bottom through an eccentric testing passage during oil pumping of a direct-drive screw pump well without production halt, and test the underground parameters.
Description
Technical field
The utility model relates to the wellhead assembly in the oil recovery field, oil field, especially directly-driven screw pump well eccentric testing wellhead assembly.
Background technology
It is to replace traditional mechanical type screw pump surface drive by the screw pump permanent magnet motor drive that the direct-drive type screw bolt well recovers the oil, utilize the alternative existing Induction Motor-Driven of vertical hollow brushless, permanently AC machine drive system system, cancellation bel-drivenn mechanical part., efficient energy-saving simple in structure, frequency conversion because of it transfer ginseng easily, advantage such as the electromagnetism anti-contrarotation security is reliable is by wide popularization and application.But the wellhead assembly of this oil production method is to be connected by bolt by blowout preventer, directly be fixed on the big four of well head, and on well head, do not have test channel, can not realize that the screw bolt well down-hole is to well temperature, stream pressure, density, the isoparametric tracking and testing of production profile.
The utility model content
To have directly-driven screw pump well well head now owing to there is not shaft mouth test in order solving, and can't to carry out the problem of tracking and testing to parameters such as down-hole well temperature, stream pressure, density, production profiles, the utility model provides a kind of directly-driven screw pump well eccentric testing wellhead assembly.This device can not need to stop production in directly-driven screw pump well oil pumping process, and tester just can pass through the eccentric testing passage smoothly, arrives the shaft bottom, and downhole parameters is tested.
The technical solution of the utility model is: a kind of directly-driven screw pump well eccentric testing wellhead assembly, comprise that four-way well head and bottom place the tubing hanger in the four-way well head, on the flange of tubing hanger by support fixedly magneto directly drive drive unit; Wherein, on the flange of described tubing hanger, also fix tilting test conduit, fixed combination formula sealing test valve radially on the test conduit, the top of test conduit is equipped with dust cap; And there is an eccentric distance e at the center of the center of tubing hanger and four-way well head, and the test duct of biasing is arranged in the tubing hanger, and the upper and lower side in described test duct communicates with test conduit and oil jacket annular space respectively; Be equipped with thrust ball bearing at the shaft shoulder of tubing hanger and the support level place of four-way well head.
The motor-hollow axle that described magneto directly drives in the drive unit connects detachable blowout preventer, adjustable standpipe and tubing hanger successively.
The beneficial effects of the utility model are: owing to be provided with the eccentric testing passage on tubing hanger, upper and lower side is logical with test conduit and downhole oil collar Kongxiang respectively, tester is passed through and smoothly under the lower going-into-well, need not shut down and just can carry out dynamic annular and test manufacturing parameters such as well temperature, stream pressure, density, production profiles; Simultaneously be equipped with thrust ball bearing at the shaft shoulder of tubing hanger and the support level place of four-way well head, eccentric oil pipe is hung the axial load that both can bear whole tubing string and fluid column, it is rotated around well head, solved test cable line coiled tubing, tester can not be transferred problem smoothly.This shaft collar is simple, handling ease, and field operation is convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1-polished rod among the figure, 2-side's clamp, the 3-magneto directly drives drive unit, the 4-support, the 5-blowout preventer, 6-combined labyrinth and carbon gland testing valve, the adjustable standpipe of 7-, 8-tubing hanger, the 9-thrust ball bearing, the 10-well head, 11-tests the duct, and 12-tests conduit, 13-dust cap.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this directly-driven screw pump well eccentric testing wellhead assembly, comprise that four-way well head 10, tubing hanger 8, support 4 and magneto directly drive drive unit 3, wherein magneto directly drives the upper end that drive unit 3 is fixed on support 4, and the lower end of support 4 is by on the end face of flange that is bolted to tubing hanger 8; Upper fixed side's clamp 2 of magneto, fixing polished rod 1 in the square clamp 2, polished rod 1 is connected with screw pump rotor in the oil well by sucker rod.Also fix tilting test conduit 12 on the end face of flange of tubing hanger 8, fixed combination formula sealing test valve 6 radially on the test conduit 12, the top of test conduit 12 is equipped with dust cap 13; And there is an eccentric distance e at the center of the center of tubing hanger 8 and four-way well head 10, and its purpose provides enough spaces for test channel, is provided with the test duct 11 of biasing in the tubing hanger 8, and the upper end in test duct 11 communicates with test conduit 12, and the lower end communicates with the oil jacket annular space; When needing downhole testing, open the dust cap 13 of test conduit 12 upper ends, open the combined labyrinth and carbon gland testing valve 6 on the test conduit 12 simultaneously, tester conduit 12 and test duct 11 after tested enters the oil jacket annular space smoothly, arrives the target oil reservoir and realizes test.Be equipped with thrust ball bearing 9 at the shaft shoulder of tubing hanger 8 and the support level place of four-way well head 10, eccentric tubing hanger 8 both can have been born the axial load of whole tubing string and fluid column, can in four-way well head 10, rotate again, when oil well is tested, if tester can not enter test channel or tester pull rope coiled tubing smoothly,, cooperate the down-hole oil tube circulator by rotating eccentric tubing hanger 8, just can remove the winding problem of test cable, guarantee to test and carry out smoothly.
The hollow shaft that described magneto directly drives motor in the drive unit 3 blowout preventer 5 that is threaded, the blowout preventer 5 adjustable standpipe 7 that is threaded, the adjustable standpipe 7 eccentric tubing hanger 8 that is threaded; When the scene needed maintenance, replacing mechanical seal, blowout preventer 5 prevented polished rod 1 chucking in the landing well, and can seal polished rod 1, prevents that well liquid from leaking outside.
This wellhead assembly can guarantee to transfer tester smoothly under directly-driven screw pump well ordinary production situation, carries out dynamic annular test, have simple in structure, handling ease, the characteristics that the on-the-spot test operation is convenient, safe and reliable.
Claims (2)
1. directly-driven screw pump well eccentric testing wellhead assembly, comprise that four-way well head (10) and bottom place the tubing hanger (8) in the four-way well head (10), on the flange of tubing hanger (8) by support (4) fixedly magneto directly drive drive unit (3), it is characterized in that: also fix tilting test conduit (12) on the flange of tubing hanger (8), fixed combination formula sealing test valve (6) radially in test conduit (12), the top is equipped with dust cap (13); And there is an eccentric distance e at the center of the center of tubing hanger (8) and four-way well head (10), and the test duct (11) of biasing is arranged in the tubing hanger (8), and the upper and lower side in described test duct (11) communicates with test conduit (12) and oil jacket annular space respectively; Be equipped with thrust ball bearing (9) at the shaft shoulder of tubing hanger (8) and the support level place of four-way well head (10).
2. directly-driven screw pump well eccentric testing wellhead assembly according to claim 1 is characterized in that: the motor-hollow axle that described magneto directly drives in the drive unit (3) connects blowout preventer (5), adjustable standpipe (7) and tubing hanger (8) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202358475U CN201835784U (en) | 2010-06-24 | 2010-06-24 | Well head eccentric testing device for direct-drive screw pump wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202358475U CN201835784U (en) | 2010-06-24 | 2010-06-24 | Well head eccentric testing device for direct-drive screw pump wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835784U true CN201835784U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202358475U Expired - Lifetime CN201835784U (en) | 2010-06-24 | 2010-06-24 | Well head eccentric testing device for direct-drive screw pump wells |
Country Status (1)
| Country | Link |
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| CN (1) | CN201835784U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612658A (en) * | 2014-11-25 | 2015-05-13 | 中国石油大学(北京) | Well test analysis control system and method used for horizontal well subsection liquid producing identification |
| 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 |
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
| CN106545309A (en) * | 2015-09-21 | 2017-03-29 | 中国石油天然气股份有限公司 | Eccentric wellhead assembly |
| CN108119088A (en) * | 2017-12-04 | 2018-06-05 | 中国石油天然气股份有限公司 | Screw pump combined eccentric well head |
| CN112539048A (en) * | 2020-12-21 | 2021-03-23 | 新乡市夏烽电器有限公司 | Offset screw pressurizing water injection device |
-
2010
- 2010-06-24 CN CN2010202358475U patent/CN201835784U/en not_active Expired - Lifetime
Cited By (7)
| 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 |
| CN104612658A (en) * | 2014-11-25 | 2015-05-13 | 中国石油大学(北京) | Well test analysis control system and method used for horizontal well subsection liquid producing identification |
| CN106545309A (en) * | 2015-09-21 | 2017-03-29 | 中国石油天然气股份有限公司 | Eccentric wellhead assembly |
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
| CN108119088A (en) * | 2017-12-04 | 2018-06-05 | 中国石油天然气股份有限公司 | Screw pump combined eccentric well head |
| CN112539048A (en) * | 2020-12-21 | 2021-03-23 | 新乡市夏烽电器有限公司 | Offset screw pressurizing water injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |