CN201730573U - Direct drive type screw pump well eccentric testing head - Google Patents
Direct drive type screw pump well eccentric testing head Download PDFInfo
- Publication number
- CN201730573U CN201730573U CN2010201778756U CN201020177875U CN201730573U CN 201730573 U CN201730573 U CN 201730573U CN 2010201778756 U CN2010201778756 U CN 2010201778756U CN 201020177875 U CN201020177875 U CN 201020177875U CN 201730573 U CN201730573 U CN 201730573U
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- eccentric
- well head
- well
- head
- drive type
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Abstract
The utility model relates to a direct drive type screw pump well eccentric testing head, which mainly solves the problem of unsmooth pulling of a testing instrument of an existing direct drive type screw pump well eccentric head. The direct drive type screw pump well eccentric testing head is characterized in that the upper side of a well head large tee is connected via an oil extracting tee and a bearing prior to being used as a fixing seat of a square motor, an eccentric hole is arranged on a flange plate of the well head large tee, an eccentric well head is arranged inside the eccentric hole, the flaring lower end of the eccentric well head is positioned inside the large tee, a guiding tube is fixed at the upper end of the eccentric well head, and an included angle beta between the guiding tube and a square motor outer casing ranges from 8 degrees to 12 degrees. The eccentric test head leads the testing instrument to be smoothed pulled in an oil sleeve annular space by the aid of inclination of the guiding tube so as to smoothly complete dynamic detection of underground of a screw pump well.
Description
Technical field:
The utility model relates to the wellhead assembly in the oil recovery field, oil field, especially direct-drive type screw bolt well eccentric testing well head.
Background technology:
In the oil recovery process of oil field, the screw pump surface driving is recovered the oil and is widely used, and the wellhead assembly of present this oil production method is that direct driving motor is fixed on well head full three links top by connector, because the full three links structure design generally can't leave the eccentric testing passage; Even indivedual well head full three links have the eccentric orfice test channel, and are also less than normal because of the aperture, perhaps because the direct driving motor overall dimensions are bigger than normal, make that the longitudinal angle of test guiding tube is bigger than normal, when being removed, tester is obstructed, can not realize test smoothly to downhole parameters.
The utility model content:
Solve existing direct-drive type screw bolt well well head for finishing, the problem that tester is removed smoothly, the utility model provides a kind of direct-drive type screw bolt well eccentric testing well head, this eccentric testing well head adopts the direct driving motor of square shell, thereby reduce the angle of inclination of guiding tube, tester is unimpededly removed in oil sets annular space, finish the dynamic monitoring work of screw bolt well down-hole smoothly.
The technical solution of the utility model is: a kind of direct-drive type screw bolt well eccentric testing well head, comprise well head full three links, oil recovery threeway and bearing, and wherein, the top of well head full three links connects the holder of back as square motor by oil recovery threeway and bearing; The flange of well head full three links is provided with eccentric orfice, and eccentric orfice is built-in with decentralized wellhead, and the lower end of decentralized wellhead is positioned at full three links, and is tubaeform, and the upper end fixed guide pipe of decentralized wellhead, the angle β of guiding tube and square motor housing are 8 °～12 °.
Be threaded between the eccentric orfice of described decentralized wellhead and well head full three links flange.
The utlity model has following beneficial effect: owing on well head full three links flange, eccentric orfice is set, the eccentric orfice internal thread connects decentralized wellhead, and the upper end fixed guide pipe of decentralized wellhead, such well head and the direct driving motor that adopts square shell are used, can be the guiding tube vacating space just as far as possible, make the guiding tube angle of inclination diminish, gradient than existing direct-drive type screw bolt well shaft mouth test guiding tube reduces greatly, and the lower end of decentralized wellhead is tubaeform, so just guaranteed that tester passes through decentralized wellhead smoothly, remove in oil sets annular space, realize the dynamic monitoring of screw bolt well smoothly.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
1-direct driving motor among the figure, 2-guiding tube, 3-angle β, 4-bearing, 5-oil recovery threeway, 6-decentralized wellhead, 7-well head full three links, 8-sleeve pipe, 9-oil pipe.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this direct-drive type screw bolt well eccentric testing well head comprises well head full three links 7, oil recovery threeway 5 and bearing 4, wherein, the upper fixed oil recovery threeway 5 of well head full three links 7, rigid bearing 4 in the oil recovery threeway 5, fix square motor 1 on the bearing 4; The flange of well head full three links 7 is provided with eccentric orfice, the eccentric orfice internal thread connects decentralized wellhead 6, the lower end of decentralized wellhead 6 is positioned at full three links 7, and be tubaeform, and the upper end fixed guide pipe 2 of decentralized wellhead 6, angle β 3 between guiding tube 2 and square motor 1 shell is 8 °～12 °, and wherein, guiding tube 2 can weld fixing with decentralized wellhead 6.
In this scheme, more smooth when tester is removed, at first during the selecting for use of motor, under the original motor effect situation of assurance, to select for use by Shenyang Electric Motor Factory production, model is a JF/PXZQ-600-500-15 type direct-drive motor, the profile of this machine is less, and be square, that appearance and size has only is long by 300 * wide by 300 * high by 540, compare with the motor of prototype shell, it is less to take up room, thereby be guiding tube 2 vacating spaces, make the longitudinal angle of guiding tube 2 as far as possible little, be 12 ° to the maximum; The eccentric orfice that on the flange of well head full three links 7, is provided with simultaneously, under the prerequisite that does not influence installation, function of use, realize maximization, so just make the diameter of the decentralized wellhead 6 that the hole internal thread connects reach ∮ 33mm, and the lower end of decentralized wellhead 6 is tubaeform, thereby guarantee the smoothness of shaft mouth test, make tester smoothly by decentralized wellhead, remove, realize dynamic monitoring smoothly the screw bolt well down-hole in the annular space of sleeve pipe 8 and oil pipe 9.
Claims (2)
1. direct-drive type screw bolt well eccentric testing well head, comprise well head full three links (7), oil recovery threeway (5) and bearing (4), it is characterized in that: the top of well head full three links (7) connects the holder of back as square motor (1) by oil recovery threeway (5) and bearing (4); The flange of well head full three links (7) is provided with eccentric orfice, eccentric orfice is built-in with decentralized wellhead (6), the lower end of decentralized wellhead (6) is positioned at full three links (7), and be tubaeform, the upper end fixed guide pipe (2) of decentralized wellhead (6), guiding tube (2) is 8 °～12 ° with the angle β (3) of square motor (1) shell.
2. direct-drive type screw bolt well eccentric testing well head according to claim 1 is characterized in that: between the eccentric orfice on decentralized wellhead (6) and well head full three links (7) flange for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201778756U CN201730573U (en) | 2010-04-28 | 2010-04-28 | Direct drive type screw pump well eccentric testing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201778756U CN201730573U (en) | 2010-04-28 | 2010-04-28 | Direct drive type screw pump well eccentric testing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730573U true CN201730573U (en) | 2011-02-02 |
Family
ID=43521730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201778756U Expired - Fee Related CN201730573U (en) | 2010-04-28 | 2010-04-28 | Direct drive type screw pump well eccentric testing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730573U (en) |
-
2010
- 2010-04-28 CN CN2010201778756U patent/CN201730573U/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: 20110202 Termination date: 20110428 |