CN2366552Y - Upside down placed type electric submersible screw pump oil prodn. installation - Google Patents
Upside down placed type electric submersible screw pump oil prodn. installation Download PDFInfo
- Publication number
- CN2366552Y CN2366552Y CN 99223670 CN99223670U CN2366552Y CN 2366552 Y CN2366552 Y CN 2366552Y CN 99223670 CN99223670 CN 99223670 CN 99223670 U CN99223670 U CN 99223670U CN 2366552 Y CN2366552 Y CN 2366552Y
- Authority
- CN
- China
- Prior art keywords
- screw pump
- oil
- shaft coupling
- electric machine
- submersible
- 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 relates to an upside down placed type electric submersible screw pump oil production installation comprising a down-hole units part, a ground power supply and control part, and an intermediate junction part. The utility model has advantages of land occupation reduction, a low speed and a high torque provided with a screw pump, avoiding the sand imbed of the short down-hole units; good heat dissipation conditions for the down-hole units; soft start implementation of the down-hole units with the starting voltage of the ground power supply no higher than the working voltage. The utility model is particularly applied to a sand well of heavy crude cold extraction, a directional hole, an inclined well and a platform well. Comparing to the present well known oil extraction system, the utility model has advantages in technique and economy.
Description
The utility model relates to the extracting device of oil that the discharge opeing of a kind of oilfield down-hole is recovered the oil, particularly a kind of inversion type electric submersible screw pump extracting device of oil.
The surface driving formula screw pump oil production system that is just using at present, because be to rely on elongate rod drive screw pump, not only system effectiveness is low, installed power is big, and there are the rod tube wearing and tearing, cause the underground work life-span short, pump is subjected to strict restriction aspect dark, hole deviation down; The danger that unit below the existing electric submersible screw pump extracting device of oil, screw pump inlet hole exists sand to bury, and wanted cable on the unit casing between motor and the pump.
The purpose of this utility model provides a kind of novel oil production system, it has overcome the shortcoming of original pattern screw pump oil production system, have that installed power is little, system effectiveness is high, the wearing and tearing of no rod tube, can prevent that sand from burying and advantages such as down-hole unit radiating condition is good, at heavy oil cold flow production sand output well, directional well or inclined shaft, platform well, compare the advantage that possesses skills with economically with other present known oil extraction systems.
The purpose of this utility model is achieved in that and is divided into three parts; it is down-hole unit part; surface power supply and control section; the middle interconnecting piece branch; comprise conversion power supply switch board (1); oil pipe (2); safety valve (3); cable (4); be communicated with pipe nipple (5); sleeve pipe (6); submersible electric machine with oil (7); kuppe (8); lubrication protection device (9); reducer (10); shaft coupling (11); screw pump (12); sucking pipe nipple (13) forms; submersible electric machine with oil (7) is in the top of screw pump (12); be connected with protector (9) between the two from top to bottom; mechanical reducer (10); housing adopts flange to connect between shaft coupling (11) and the screw pump (12); use screwed connection between shaft coupling (11) and the screw pump (12), the down-hole unit is connected with cable (4) by oil pipe (2) with ground.
When work, utilize downhole electrical motor at down-hole drive screw pump, downhole cable is delivered to downhole electrical motor with electricity, between screw pump and downhole electrical motor, increase mechanical reducer and shaft coupling, solve and reduce rotating speed, improve torque and bear screw pump work axial force and the drive screw pump rotor is done the problem of planetary motion, adopt kuppe to solve the problem of fluid course, in order to reduce down-hole submersible electric machine with oil detent torque, the frequency conversion soft start control device is adopted on ground simultaneously.
The utility model is owing to adopt such scheme, can remove elongated drive rod, reducing ground takes up an area of, provide the slow-speed of revolution, high moment of torsion to screw pump, the down-hole unit is short, prevents that sand from burying the down-hole unit, and down-hole unit radiating condition is good, realize down-hole unit soft start, the surface power supply starting resistor is not higher than operating voltage.
Accompanying drawing 1 is a unit general assembly schematic diagram of the present utility model.
Further specify below in conjunction with 1 pair of the utility model of accompanying drawing:
As seen from the figure: the utility model comprises conversion power supply switch board 1; oil pipe 2; safety valve 3; cable 4; be communicated with pipe nipple 5; sleeve pipe 6; submersible electric machine with oil 7; kuppe 8; lubrication protection device 9; reducer 10; shaft coupling 11; screw pump 12; sucking pipe nipple 13 forms; among Fig. 1; submersible electric machine with oil 7 and lubrication protection device 9; lubrication protection device 9 and reducer 10; adopt flange to be connected between reducer 10 and the shaft coupling 11; all the other all adopt screwed connection everywhere; cable 4 one ends link to each other with submersible electric machine with oil 7; the other end links to each other with conversion power supply switch board 1; the kuppe 8 of a two ends bands sealing be communicated with pipe nipple 5; submersible electric machine with oil 7; lubrication protection device 9; form an annular space between reducer 10 and the shaft coupling 11; have intercommunicating pore on connection pipe nipple 5 and the shaft coupling 11 lower end housings, be communicated with oil pipe inner chamber and screw pump 12 outlet openings respectively.
After 1 energising of ground conversion power supply switch board; electric current is sent to submersible electric machine with oil 7 by cable 4; submersible electric machine with oil 7 is by the rotor rotation of lubrication protection device 9, reducer 10, shaft coupling 11 drive screw pumps 12; oil stream enters screw pump 13 from sucking pipe nipple 13 arrival screw pumps 12 intakes; enter annular space between kuppe 8 and the unit from the intercommunicating pore of screw pump 12 outlet openings and shaft coupling 11 lower ends again; oil stream is communicated with pipe nipple 5 along passing through on the annular space and enters oil pipe 2; drained into ground through safety valve 3 and oil pipe 2 more at last, thus with crude oil from underground extraction.
Claims (3)
1; a kind of inversion type electric submersible screw pump extracting device of oil; be divided into three parts; it is down-hole unit part; surface power supply and control section; the middle interconnecting piece branch; comprise conversion power supply switch board (1); oil pipe (2); safety valve (3); cable (4); be communicated with pipe nipple (5); sleeve pipe (6); submersible electric machine with oil (7); kuppe (8); lubrication protection device (9); reducer (10); shaft coupling (11); screw pump (12); sucking pipe nipple (13) forms; it is characterized in that: submersible electric machine with oil (7) is in the top of screw pump (12); be connected with protector (9) between the two from top to bottom; mechanical reducer (10); shaft coupling (11) and screw pump (12); submersible electric machine with oil (7); protector (9); housing adopts flange to connect between mechanical reducer (10) and the shaft coupling (11); use screwed connection between shaft coupling (11) and the screw pump (12), the down-hole unit is connected with cable (4) by oil pipe (2) with ground.
2, inversion type electric submersible screw pump extracting device of oil according to claim 1; it is characterized in that: cable (4) one ends link to each other with submersible electric machine with oil (7); the other end links to each other with conversion power supply switch board (1); the kuppe (8) of a two ends bands sealing be communicated with annular space of formation between pipe nipple (5), submersible electric machine with oil (7), lubrication protection device (9), reducer (10) and the shaft coupling (11); have intercommunicating pore on connection pipe nipple (5) and shaft coupling (11) the lower end housing, be communicated with oil pipe inner chamber and screw pump (12) outlet opening respectively.
3, inversion type electric submersible screw pump extracting device of oil according to claim 1 is characterized in that: screw pump (12) adopts the screw pump of single rotation direction, the shared lubrication protection device of mechanical reducer and down-hole submersible electric machine with oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223670 CN2366552Y (en) | 1999-04-29 | 1999-04-29 | Upside down placed type electric submersible screw pump oil prodn. installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223670 CN2366552Y (en) | 1999-04-29 | 1999-04-29 | Upside down placed type electric submersible screw pump oil prodn. installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366552Y true CN2366552Y (en) | 2000-03-01 |
Family
ID=34013864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223670 Expired - Fee Related CN2366552Y (en) | 1999-04-29 | 1999-04-29 | Upside down placed type electric submersible screw pump oil prodn. installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366552Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373054C (en) * | 2006-03-14 | 2008-03-05 | 赵锡寰 | Guilding and conducting system of hung electric submersible screw pump |
| CN101929327A (en) * | 2010-09-06 | 2010-12-29 | 中国海洋石油总公司 | Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| CN105822522A (en) * | 2016-04-27 | 2016-08-03 | 成都绿迪科技有限公司 | Oil well pump for oil exploitation |
| CN106640611A (en) * | 2016-10-28 | 2017-05-10 | 濮阳市科锐机械工程技术有限公司 | Inverted pull-down oil well pump |
| CN109209900A (en) * | 2017-06-30 | 2019-01-15 | 中国石油天然气股份有限公司 | Suspension type oil-submersible screw pump oil production device |
| CN110234836A (en) * | 2017-02-01 | 2019-09-13 | 沙特阿拉伯石油公司 | Band cover electric submersible pump |
| CN113078515A (en) * | 2021-04-02 | 2021-07-06 | 东营科恩石油技术服务有限公司 | Electric submersible screw pump for wet butt joint of cables |
-
1999
- 1999-04-29 CN CN 99223670 patent/CN2366552Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100373054C (en) * | 2006-03-14 | 2008-03-05 | 赵锡寰 | Guilding and conducting system of hung electric submersible screw pump |
| CN101929327A (en) * | 2010-09-06 | 2010-12-29 | 中国海洋石油总公司 | Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof |
| WO2016037449A1 (en) * | 2014-09-09 | 2016-03-17 | 赵锡寰 | Submersible oil well pump unit having downhole drive conversion apparatus |
| CN105822522A (en) * | 2016-04-27 | 2016-08-03 | 成都绿迪科技有限公司 | Oil well pump for oil exploitation |
| CN106640611A (en) * | 2016-10-28 | 2017-05-10 | 濮阳市科锐机械工程技术有限公司 | Inverted pull-down oil well pump |
| CN110234836A (en) * | 2017-02-01 | 2019-09-13 | 沙特阿拉伯石油公司 | Band cover electric submersible pump |
| CN109209900A (en) * | 2017-06-30 | 2019-01-15 | 中国石油天然气股份有限公司 | Suspension type oil-submersible screw pump oil production device |
| CN113078515A (en) * | 2021-04-02 | 2021-07-06 | 东营科恩石油技术服务有限公司 | Electric submersible screw pump for wet butt joint of cables |
| CN113078515B (en) * | 2021-04-02 | 2022-11-25 | 东营科恩石油技术服务有限公司 | Electric submersible screw pump for wet butt joint of cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |