CN2238333Y - Electric screw submerged pump - Google Patents
Electric screw submerged pump Download PDFInfo
- Publication number
- CN2238333Y CN2238333Y CN 95226876 CN95226876U CN2238333Y CN 2238333 Y CN2238333 Y CN 2238333Y CN 95226876 CN95226876 CN 95226876 CN 95226876 U CN95226876 U CN 95226876U CN 2238333 Y CN2238333 Y CN 2238333Y
- Authority
- CN
- China
- Prior art keywords
- oil
- screw pump
- adjustable motor
- speed
- well
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an oil exploitation device of an electric oil submerged screw pump for an oil well. The oil exploitation device of an electric oil submerged screw pump for an oil well mainly accepts a cable to transmit. An oil submerged speed regulating motor is installed under a well to directly drive a screw pump, and oil is raised onto a ground. The oil exploitation device of an electric oil submerged screw pump for an oil well can be installed on any positions under the well, the oil exploitation device of an electric oil submerged screw pump for an oil well can not be limited by the depth, the rotary speed and the discharge capacity of the oil exploitation device of an electric oil submerged screw pump for an oil well can be regulated. The oil exploitation device of an electric oil submerged screw pump for an oil well has simple structure and low cost. The oil exploitation device of an electric oil submerged screw pump for an oil well can be suitable for the production of oil wells with different production and different viscosity.
Description
The utility model relates to a kind of oil well electric oil submerged screw pump extracting device of oil.
In the oil extraction process, generally adopt oil pumping of pumping unit tubing pump and ground driving screw pump oil pumping, these two kinds of oil production technology all are that ground surface driving reaches the oil recovery purpose by the work of sucker rod drive underwell pump, the common shortcoming that exists is that motor drives underwell pump work indirectly, so power consumpiton is big, efficient is low to waste energy, and drive in the underwell pump working procedure by sucker rod, quality because of bar, tired, wearing and tearing, etching problem or cause because of oil is thick that bar is disconnected to wait the operation again of having to examine pump, the management of ground installation simultaneously, maintenance and breaking down etc. all can influence oil pumping and increase workload, make cost consumption too high, investment is big, 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 oil production technology.
The purpose of this utility model is in order to provide a kind of civil power that utilizes to pass through cable transmission, make the down-hole oily speed-adjustable motor work of diving, direct 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 by ac power supply, cable, tubing hanger, oil pipe, screw pump, crosses the extracting device of oil of oil connecting pipe, speed-adjustable motor formation.Oil pipe is suspended in the well by tubing hanger, and ac power supply is connected with speed-adjustable motor by cable, and the speed-adjustable motor output shaft is connected with screw pump rotor, and screw pump stator passed through oil connecting pipe and is connected with speed-adjustable motor, and its special way is:
(1) latent oily speed-adjustable motor direct drive screw pump rotor in pit shaft;
(2) screw pump rotor and the oily speed-adjustable motor output shaft side of the employing rib of diving are pegged graft and are connect;
(3) screw pump rotor and speed-adjustable motor passed through oil connecting pipe two and connect with screw thread, and crossed in the oil connecting pipe and have oil-through hole;
(4) conical backing pin is equipped with at the screw pump stator top:
The utility model has the advantages that: (1) electrical submersible spiral shell pump can be installed in any position, down-hole, has solved the problem that other pump is limited by the degree of depth; (2) dive oily speed-adjustable motor in the down-hole direct drive screw pump, saved power loss because of ground installation and sucker rod, can economize on electricity to reach about 40%; (3) because of not having also face transmission device and no bar, so reduced equipment investment and steel, can save and invest about 50%, has eliminated because of the quality problems of sucker rod in the down-hole (4), and fatigue, burn into wearing and tearing etc. cause bar to break to take off and the worn out and pump detection and workover of oil pipe.So can improve rate when recovering the oil, prolong being excused from a college course the phase of oil well, reduce operating cost.(5) floor control is simple, because of maintenance, maintenance, management and the destruction of having avoided ground installation, thereby reduces cost for oil production and oil recovery labor strength.(6) applied widely, rotating speed adjustable, 7～60 cubic metres of discharge capacities, viscosity is less than 4000mpa.s.
Be described further (embodiment) below in conjunction with accompanying drawing
Ac power supply 1 connects by the cable 2 and the oily speed-adjustable motor 10 of diving, the oily speed-adjustable motor output shaft 9 of diving inserts with screw pump rotor 6 lower end Square-edges and connects, cross oil connecting pipe 8 two ends screw thread is arranged, the screw pump stator lower end and oily speed-adjustable motor 10 upper ends of diving are coupled as one by screw thread, cross and have a plurality of oil-through holes in the oil connecting pipe 8, screw pump stator is equipped with conical fix stopper in 5 upper ends, and screw pump stator 5 upper ends have screw thread and oil pipe 4 to connect, and are suspended in the sleeve pipe 3 by tubing hanger and wellhead assembly.After the energising, electric current is transferred to the oily speed-adjustable motor 10 of diving by cable 2, and oily speed-adjustable motor 10 output shafts 9 of diving rotate and also drive screw pump rotor 6 and rotate, and liquid is lifted in the oil pipe to ground by oil-through hole 7, reaches the purpose of oil recovery.The oily speed-adjustable motor 10 of diving transfers to different rotating speeds to reach the oil well production purpose that is suitable for the different viscosities different displacements by ground.
Claims (2)
1, a kind of electric oil submerged screw pump device that constitutes by ac power supply (1) cable (2) screw pump stator (5), screw pump rotor (6), oil connecting pipe (8) excessively, the oily speed-adjustable motor (10) of diving, oil pipe (4), sleeve pipe (3), oil pipe (4) is suspended on the well head by tubing hanger, ac power supply (1) is connected with latent oily speed governing electricity (10) by cable (2), the rotor (6) of latent oily speed-adjustable motor output shaft (9) and screw pump is client link down, the screw pump stator and the oily speed-adjustable motor (10) of diving passed through oil connecting pipe (8) and link and be one, it is characterized in that:
(1), the rotor (6) of latent oily speed-adjustable motor (10) direct drive screw pump in pit shaft;
(2), the screw pump rotor (6) and oily speed-adjustable motor output shaft (9) the employing side rib of diving are pegged graft and are connect;
(3), the stator (5) of screw pump and two that speed-adjustable motor (10) passed through oil connecting pipe (8) connect with screw thread, and cross in the oil connecting pipe (8) and have oil-through hole (7);
(4) in screw pump stator (5) top conical backing pin is housed.
2, according to claim 1, the electric oil submerged screw pump device is characterized in that: the directly drive screw pump rotor (6) of oily speed-adjustable motor (10) of diving, its rotating speed adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226876 CN2238333Y (en) | 1995-12-04 | 1995-12-04 | Electric screw submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226876 CN2238333Y (en) | 1995-12-04 | 1995-12-04 | Electric screw submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238333Y true CN2238333Y (en) | 1996-10-23 |
Family
ID=33872917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226876 Expired - Fee Related CN2238333Y (en) | 1995-12-04 | 1995-12-04 | Electric screw submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238333Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221438A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Submersible motor and screw pump integrated device |
| CN106801592A (en) * | 2016-12-23 | 2017-06-06 | 中国石油天然气股份有限公司 | Rodless closed-loop oil production system |
-
1995
- 1995-12-04 CN CN 95226876 patent/CN2238333Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221438A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Submersible motor and screw pump integrated device |
| CN106801592A (en) * | 2016-12-23 | 2017-06-06 | 中国石油天然气股份有限公司 | Rodless closed-loop oil production system |
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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 |