CN2267325Y - Oil prodn. equipment with electric oil submersible screw pump - Google Patents
Oil prodn. equipment with electric oil submersible screw pump Download PDFInfo
- Publication number
- CN2267325Y CN2267325Y CN 96218426 CN96218426U CN2267325Y CN 2267325 Y CN2267325 Y CN 2267325Y CN 96218426 CN96218426 CN 96218426 CN 96218426 U CN96218426 U CN 96218426U CN 2267325 Y CN2267325 Y CN 2267325Y
- Authority
- CN
- China
- Prior art keywords
- oil
- screw pump
- extraction device
- reducer
- cable
- 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 oil extraction device with an electric oil submersible screw pump for an oil well. The oil extraction device is composed of an alternating current power supply, a cable, an oil pipe, a position limiting device of a screw pump, a casing pipe, a stator of the screw pump, a rotor of the screw pump, a protector of a speed reducer, a universal shaft coupling, the speed reducer, etc. The oil extraction device mainly uses the cable to transmit. An oil submersible machine is installed under a well, the oil submersible machine which is decelerated by the speed reducer can drive the screw pump to work, and oil is lifted onto a ground. The oil extraction device can be installed at any part under a well, and can not be limited by depth. The rotary speed and the discharge capacity of the oil extraction device can be set. The oil extraction device has simple structure and low cost, and can be suitable for the production of oil wells and inclined wells with different production capacity and different viscosity.
Description
The utility model relates to the oil production equipment in the petroleum industry, specifically a kind of electric oil submerged screw pump extracting device of oil.
In the oil extraction process, generally adopt oil pumping of oil pumper pipe pump and ground driving screw pump oil pumping, these two kinds of oil production technology all are that surface driving reaches the oil recovery purpose by the work of sucker rod drive down-hole pump, the common shortcoming that exists is that motor drives down-hole pump work indirectly, so power consumption is big, efficient is low, waste energy, and drive in the down-hole pump course of work by sucker rod, cause the disconnected inspection of the operation again pump of having to of bar because of the quality of sucker rod, fatigue, wearing and tearing, etching problem or because of oil is thick.The management of ground installation simultaneously, maintain and break down etc. and all can influence oil pumping and increase workload, cost consumption is increased, investment strengthens, and shortens oil well repair free period.Therefore all there is the waste of managerial trouble and human and material resources, financial resources, the energy in these two kinds of extracting device of oil.
The purpose of this utility model is to provide a kind of electric oil submerged screw pump extracting device of oil for solving defective of the prior art, it utilizes civil power to pass through cable transmission, make down-hole submersible electric machine with oil work, by reducer drive screw pump work, and reach the oil pumping purpose, effectively raise efficient and reduced the consumption of human and material resources, financial resources, investment is lower simultaneously.
The technical solution of the utility model is achieved in that a kind of electric oil submerged screw pump extracting device of oil that is made of AC power, cable, tubing hanger, oil pipe, screw pump, stop, reducer, reducer protector, motor protecter, submersible electric machine with oil.Oil pipe is suspended in the well by tubing hanger; AC power is connected with submersible electric machine with oil by cable; the submersible electric machine with oil protector is connected with reducer; reducer is connected with screw pump by the reducer protector; stop is equipped with in the screw pump upper end; the bottom has a plurality of oil-through holes, and reducer protector output shaft is connected with screw pump rotor by universal coupling, and its special character is:
(1) submersible electric machine with oil passes through motor protecter, reducer protector, universal coupling drive screw pump rotor in pit shaft;
(2) stop is equipped with in the screw pump stator upper end, and the bottom has a plurality of oil-through holes;
(3) universal coupling and screw pump rotor adopt screwed connection;
(4) universal coupling and reducer protector output shaft adopt spline (or four ribs, six ribs) pegging graft connect;
(5) screw pump stator adopts flange to be connected with the reducer protector;
(6) but reducer single-stage, twin-stage, multi-stage speed-reducing, and reducer one side had cable channel;
(7) output of reducer and motor protecter adopts pattern chain to connect;
The utility model advantage compared with prior art is: (1) electric oil submerged screw pump can be installed in any position, down-hole, has solved the problem that other pump is limited by the degree of depth; (2) submersible electric machine with oil by reducer drive screw pump, has been saved the power attenuation because of ground installation and sucker rod in the down-hole, and can economize on electricity to reach about 40%; (3),, can save investment about 50% so reduced equipment investment and steel because of no ground drive apparatus and no sucker rod; (4) eliminated because of the quality problems of sucker rod in the down-hole, fatigue, burn into wearing and tearing etc. cause the worn out and operation of rod parting and oil pipe.So can improve rate when recovering the oil, prolong oil well repair free period, reduce operating cost; (5) floor control is simple, because of maintenance, maintenance, management and the destruction of ground installation are reduced cost for oil production and labor strength; (6) applied widely, rotating speed is set according to well capacity, discharge capacity 7-60 cubic meter, and viscosity is less than 4000MPA.S; (7) be applicable to that inclined shaft recovers the oil.
Be described further (embodiment) below in conjunction with accompanying drawing
Accompanying drawing is a structural representation of the present utility model.
AC power (1) connects by cable (2) and submersible electric machine with oil (13); submersible electric machine with oil (13) and motor protecter (12) are by flange coupling; motor protecter (12) and reducer (11) are by flange coupling; reducer (11) one sides had cable channel; reducer protector (10) and screw pump stator (6) are by flange coupling; stop (4) is equipped with in screw pump stator (6) upper end; screw pump stator (6) bottom has a plurality of oil-through holes; reducer protector (10) output shaft and universal coupling (9) are by spline (or four ribs; six ribs) connect; universal coupling (9) connects by screw thread with screw pump rotor (7); screw pump stop (4) connects by screw thread with oil pipe (3), and oil pipe (3) is suspended in the sleeve pipe (5) by wellhead assembly.The energising after-current is transferred to submersible electric machine with oil (13) by cable (2); rotate by motor protecter (12), reducer (11), reducer protector (10), universal coupling (9) drive screw pump rotor (7); it is interior to ground that liquid lifts oil pipe (3) by oil-through hole (8), reaches the oil recovery purpose.
Claims (3)
1; a kind of electric oil submerged screw pump extracting device of oil; by AC power (1); cable (2); screw pump stator (6); screw pump rotor (7); submersible electric machine with oil (13); motor protecter (12); screw pump stop (4); oil pipe compositions such as (3); it is characterized in that oil pipe (3) is suspended on the well head by tubing hanger; AC power (1) is connected with submersible electric machine with oil (13) by cable (2); submersible electric machine with oil (13) connects with motor protecter (12) by flange; motor protecter (12) and reducer (11) are by flange coupling; reducer protector (10) and screw pump stator (6) are by flange coupling; stop (4) is equipped with in screw pump stator (6) upper end; reducer protector (10) output shaft and universal coupling (9) connect by spline; oil pipe (3) is suspended in the sleeve pipe (5) by wellhead assembly, and screw pump stop (4) connects by screw thread with oil pipe (3).
2, device according to claim 1 is characterized in that screw pump stator (6) bottom has a plurality of oil-through holes.
3, device according to claim 1 is characterized in that reducer (11) one sides had cable channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96218426 CN2267325Y (en) | 1996-08-16 | 1996-08-16 | Oil prodn. equipment with electric oil submersible screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96218426 CN2267325Y (en) | 1996-08-16 | 1996-08-16 | Oil prodn. equipment with electric oil submersible screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2267325Y true CN2267325Y (en) | 1997-11-12 |
Family
ID=33899275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96218426 Expired - Fee Related CN2267325Y (en) | 1996-08-16 | 1996-08-16 | Oil prodn. equipment with electric oil submersible screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2267325Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563972A (en) * | 2015-01-12 | 2015-04-29 | 重庆科技学院 | Small power deep well pumping unit |
| CN107448175A (en) * | 2017-08-23 | 2017-12-08 | 唐伏平 | Pulling cable type submersible screw pump |
| CN115874988A (en) * | 2021-09-29 | 2023-03-31 | 中国石油天然气股份有限公司 | Small-diameter electric submersible screw pump oil production device |
-
1996
- 1996-08-16 CN CN 96218426 patent/CN2267325Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563972A (en) * | 2015-01-12 | 2015-04-29 | 重庆科技学院 | Small power deep well pumping unit |
| CN104563972B (en) * | 2015-01-12 | 2017-11-14 | 重庆科技学院 | Small-power deep well machine |
| CN107448175A (en) * | 2017-08-23 | 2017-12-08 | 唐伏平 | Pulling cable type submersible screw pump |
| CN115874988A (en) * | 2021-09-29 | 2023-03-31 | 中国石油天然气股份有限公司 | Small-diameter electric submersible screw pump oil production device |
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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 |