CN103924947B - Oil extraction device with hollow submersible motor and underneath screw pump - Google Patents
Oil extraction device with hollow submersible motor and underneath screw pump Download PDFInfo
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- CN103924947B CN103924947B CN201410142271.0A CN201410142271A CN103924947B CN 103924947 B CN103924947 B CN 103924947B CN 201410142271 A CN201410142271 A CN 201410142271A CN 103924947 B CN103924947 B CN 103924947B
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- axle
- submersible electric
- motor
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- 238000000605 extraction Methods 0.000 title abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000001012 protector Effects 0.000 claims abstract description 6
- 238000004873 anchoring Methods 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to an oil field oil extraction device, in particular to a novel electric submersible screw pump oil extraction device. The invention solves the problem that the working shaft, the coupling and the reducer in the electric submersible screw pump oil production system are easy to have faults in a 5.5' casing oil production well, the oil pipe 1, the upper joint 4 of the motor protector, the shell 7 of the motor protector and the lower joint 8 of the motor protector are in threaded connection, the submersible motor head 10, the submersible motor stator 12 and the lower joint 13 of the submersible motor are in threaded connection, and the hollow shaft 5 of the motor protector, the hollow shaft 11 of the submersible motor and the shaft 15 of the hollow shaft transmission device are mutually connected through the shaft connector 6.
Description
Technical field
The present invention relates to a kind of oil extraction in oil field device, more particularly, to a kind of electric submersible screw pump oil extraction device.
Background technology
In prior art, motor is placed in the oil-submersible screw-pump oil production system of down-hole, the submersible electric machine with oil of down-hole passes through decelerator
Or directly screw pump rotor rotation is driven by shaft joint, the submersible electric machine with oil of down-hole is placed in bottommost, and screw pump is placed in top,
This technology eliminates sucker rod, but because its driving-chain is longer, decelerator and screw pump outside dimension are in 5.5 " Casing for extracting oil
Apply limited in well, working shaft and the pressurized work of shaft joint, working shaft, shaft joint and decelerator are easy to break down, the life-span
Short, when particularly oil well output is relatively low, submersible electric machine with oil radiating is bad, affects whole machine service life.In order to solve the above problems, fill
The superiority of electric oil submerged screw pump oil extraction system is waved in distribution, it is to avoid working shaft, shaft joint and decelerator break down problem, this
Invention develops a kind of electric oil-submersible screw-pump oil production system.
Content of the invention
It is an object of the invention to provide one kind can increase the power-transmitting parts such as motor, working shaft and shaft joint work energy
The underlying screw pump oil production device of hollow submersible electric motor of power and reliability.
The technical solution adopted in the present invention is: it is connect by oil pipe, tubing centrilizer, mechanical seal, motor protecter
Head, motor protecter hollow axle, mandrel connector, motor protecter housing, motor protecter lower contact, screw, submersible electric machine with oil head,
Submersible electric machine with oil hollow axle, motor stator, submersible electric machine with oil lower contact, Hollow Shaft Transmission device top connection, hollow axle transfer device axle,
Bearing group, Hollow Shaft Transmission device center tap, bearing, Hollow Shaft Transmission device lower contact, mandrel connector with holes, tubing coupling,
Flexible shaft or shaft joint, flexible shaft device housing, screw pump rotor, screw pump stator, screen casing, down-hole grappling tool group become；
Wherein oil pipe, motor protecter top connection, motor protecter housing, be threaded between motor protecter lower contact, oil pipe
Centralizer is enclosed within outside oil pipe, and motor protecter lower contact is connected using screw flange with submersible electric machine with oil head, submersible electric machine with oil head with
It is threaded between Submersible Motor Stator, submersible electric machine with oil lower contact, submersible electric machine with oil lower contact and Hollow Shaft Transmission device connect
Head is connected using screw flange, Hollow Shaft Transmission device top connection, Hollow Shaft Transmission device center tap, under Hollow Shaft Transmission device
It is threaded between joint, Hollow Shaft Transmission device lower contact, flexible shaft device housing, screw pump stator, screen casing, underground anchor
Determine to connect by tubing coupling between instrument；Motor protecter hollow axle, submersible electric machine with oil hollow axle, hollow axle transfer device axle it
Between connected by mandrel connector, carried using bearing group and bearing righting, hollow axle transfer device axle, flexible shaft and screw pump turn
Son connects by mandrel connector with holes, motor protecter hollow axle and motor protecter top connection and hollow axle transfer device axle and
Hollow Shaft Transmission device top connection is sealed by mechanical seal, and motor protecter hollow axle, submersible electric machine with oil hollow axle, hollow axle pass
Delivery device axle is connected with each other by mandrel connector.
Tubing centrilizer is rigid centralizer or non-rigid centralizer.
Motor protecter hollow axle, submersible electric machine with oil hollow axle, hollow axle transfer device axle and be airtight hollow axle.
Flexible shaft or shaft joint are Hooks coupling universal coupling or long rods.
Down-hole anchor tool is the tubing anchor work such as slip-type anchor tool or rotary anchor tool or torque anchor
Tool.
Compared with the prior art the present invention, has the advantage that
1) oil flow channel is placed in inside rotor and power transmission shaft the present invention, thus it is soft to amplify screw pump, hollow axle
Property each several part equipment overall dimensions such as actuating device, motor, increase Operational capability of plant and reliability.
2) power transmission shaft and adapter are solely subjected to pulling force and moment of torsion, there is not buckle in compression problem, improve the reliability of system
Property.
3) system eliminates rod string, improves oil extraction system efficiency, reduces energy consumption, eliminates flooring-safe wind
Danger, has saved production cost, has facilitated management.
Brief description
Fig. 1 is present configuration schematic diagram；Fig. 2 is present invention scene application schematic diagram.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described, it is by oil pipe 1, tubing centrilizer 2, mechanical seal 3, motor
Protector top connection 4, motor protecter hollow axle 5, mandrel connector 6, motor protecter housing 7, motor protecter lower contact 8,
Screw 9, submersible electric machine with oil head 10, submersible electric machine with oil hollow axle 11, motor stator 12, submersible electric machine with oil lower contact 13, Hollow Shaft Transmission dress
Put top connection 14, hollow axle transfer device axle 15, bearing group 16, Hollow Shaft Transmission device center tap 17, bearing 18, hollow axle biography
Dynamic device lower contact 19, mandrel connector with holes 20, tubing coupling 21, flexible shaft or shaft joint 22, flexible shaft device housing 23,
Screw pump rotor 24, screw pump stator 25, screen casing 26, down-hole anchor tool 27 form；Wherein oil pipe 1, connect on motor protecter
4, it is threaded between motor protecter housing 7, motor protecter lower contact 8, tubing centrilizer 2 is enclosed within outside oil pipe 1,
Motor protecter lower contact 8 is connected using screw 9 flange with submersible electric machine with oil head 10, submersible electric machine with oil head 10 and Submersible Motor Stator
12nd, it is threaded between submersible electric machine with oil lower contact 13, submersible electric machine with oil lower contact 13 is sharp with Hollow Shaft Transmission device top connection 14
Connected with screw 9 flange, Hollow Shaft Transmission device top connection 14, Hollow Shaft Transmission device center tap 17, Hollow Shaft Transmission device
Be threaded between lower contact 19, Hollow Shaft Transmission device lower contact 19, flexible shaft device housing 23, screw pump stator 25,
Connected by tubing coupling 21 between screen casing 26, down-hole anchor tool 27；Motor protecter hollow axle 5, submersible electric machine with oil hollow axle
11st, connected by mandrel connector 6 between hollow axle transfer device axle 15, carried using bearing group 16 and bearing 18 righting, hollow
Axle transfer device axle 15, flexible shaft 22 are connected by mandrel connector 20 with holes with screw pump rotor 24, motor protecter hollow axle 5
Pass through mechanical seal 3 with motor protecter top connection 4 and hollow axle transfer device axle 15 with Hollow Shaft Transmission device top connection 14
Sealing, motor protecter hollow axle 5, submersible electric machine with oil hollow axle 11, hollow axle transfer device axle 15 are mutually interconnected by mandrel connector 6
Connect.
Tubing centrilizer 2 is rigid centralizer or non-rigid centralizer, can pass through oil-submersible cable and test cable.
Motor protecter hollow axle 5, submersible electric machine with oil hollow axle 11, hollow axle transfer device axle 15 are airtight hollow axle, its
Inner chamber can be used for producing liquid flow pass.
Flexible shaft or shaft joint 22 are Hooks coupling universal coupling or long rods.
Down-hole anchor tool 27 is the tubing anchor such as slip-type anchor tool or rotary anchor tool or torque anchor
Instrument.
During onsite application, ground connected mode be motor controlling cabinet 31, rosette 30, wellhead assembly 29, oil-submersible cable 28,
The oil pipe 1 of the present invention.During work, Surface power drive passes through motor controlling cabinet 31, rosette 30, wellhead assembly 29, oil-submersible cable 28
Pass to down-hole submersible electric machine with oil, submersible electric machine with oil hollow axle 11 rotarily drives hollow axle transfer device axle 15, flexible shaft or connecting shaft
Device 22, screw pump rotor 24 rotate, and well liquid is passed through hollow axis channel by underground and oil pipe 1 gives rise to ground.Wherein screw pump
Rotating speed stepless speed regulation realization is carried out by motor controlling cabinet 31.
Claims (5)
1. the underlying screw pump oil production device of hollow submersible electric motor it is characterised in that: it by oil pipe (1), tubing centrilizer (2),
Mechanical seal (3), motor protecter top connection (4), motor protecter hollow axle (5), mandrel connector (6), motor protecter shell
Body (7), motor protecter lower contact (8), screw (9), submersible electric machine with oil head (10), submersible electric machine with oil hollow axle (11), motor stator
(12), submersible electric machine with oil lower contact (13), Hollow Shaft Transmission device top connection (14), hollow axle transfer device axle (15), bearing group
(16), Hollow Shaft Transmission device center tap (17), bearing (18), Hollow Shaft Transmission device lower contact (19), mandrel connector with holes
(20), tubing coupling (21), flexible shaft or shaft joint (22), flexible shaft device housing (23), screw pump rotor (24), screw rod
Pump stator (25), screen casing (26), down-hole anchor tool (27) composition；Wherein oil pipe (1), motor protecter top connection (4), motor
Protector housing (7), motor protecter lower contact are threaded between (8), and tubing centrilizer (2) is enclosed within oil pipe (1) outside,
Motor protecter lower contact (8) is connected using screw (9) flange with submersible electric machine with oil head (10), and submersible electric machine with oil head (10) is electric with latent oil
Machine stator (12), submersible electric machine with oil lower contact are threaded between (13), and submersible electric machine with oil lower contact (13) is filled with Hollow Shaft Transmission
Putting top connection (14) utilizes screw (9) flange to connect, Hollow Shaft Transmission device top connection (14), Hollow Shaft Transmission device center tap
(17) it is, threaded between Hollow Shaft Transmission device lower contact (19), Hollow Shaft Transmission device lower contact (19), flexible shaft dress
Pass through tubing coupling (21) between encloser body (23), screw pump stator (25), screen casing (26), down-hole anchor tool (27) to connect；
Pass through mandrel connector between motor protecter hollow axle (5), submersible electric machine with oil hollow axle (11), hollow axle transfer device axle (15)
(6) connect, carried using bearing group (16) and bearing (18) righting, hollow axle transfer device axle (15), flexible shaft (22) and spiral shell
Bar pump rotor (24) passes through mandrel connector with holes (20) connection, motor protecter hollow axle (5) and motor protecter top connection (4)
Pass through mechanical seal (3) with hollow axle transfer device axle (15) and Hollow Shaft Transmission device top connection (14) to seal, electric motor protecting
Device hollow axle (5), submersible electric machine with oil hollow axle (11), hollow axle transfer device axle (15) are connected with each other by mandrel connector (6).
2. the underlying screw pump oil production device of hollow submersible electric motor according to claim 1 it is characterised in that: oil pipe righting
Device (2) is rigid centralizer or non-rigid centralizer.
3. the underlying screw pump oil production device of hollow submersible electric motor according to claim 1 it is characterised in that: electric motor protecting
Device hollow axle (5), submersible electric machine with oil hollow axle (11), hollow axle transfer device axle (15) are airtight hollow axle.
4. the underlying screw pump oil production device of hollow submersible electric motor according to claim 1 it is characterised in that: flexible shaft or
Person's shaft joint (22) is Hooks coupling universal coupling or long rods.
5. the underlying screw pump oil production device of hollow submersible electric motor according to claim 1 it is characterised in that: down-hole grappling
Instrument (27) is slip-type anchor tool or rotary anchor tool or torque anchor tubing anchoring tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142271.0A CN103924947B (en) | 2014-04-02 | 2014-04-02 | Oil extraction device with hollow submersible motor and underneath screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142271.0A CN103924947B (en) | 2014-04-02 | 2014-04-02 | Oil extraction device with hollow submersible motor and underneath screw pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924947A CN103924947A (en) | 2014-07-16 |
| CN103924947B true CN103924947B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142271.0A Active CN103924947B (en) | 2014-04-02 | 2014-04-02 | Oil extraction device with hollow submersible motor and underneath screw pump |
Country Status (1)
| Country | Link |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265244B (en) * | 2014-09-14 | 2016-12-07 | 哈尔滨理工大学 | Down-hole latent oil multistage lifting type oil pumping system and collocation method |
| CN105239979B (en) * | 2015-10-15 | 2018-02-02 | 中国石油天然气股份有限公司 | An electronically controlled steam distribution valve |
| CN105715545B (en) * | 2015-12-25 | 2018-09-04 | 中国石油天然气股份有限公司 | Submersible direct-drive screw pump universal joint transmission device |
| CN105673483B (en) * | 2016-03-31 | 2018-11-16 | 中国石油天然气股份有限公司 | Oil of diving directly drives screw pump flexible shaft transmission |
| CN107461333B (en) * | 2017-09-19 | 2019-02-12 | 东北石油大学 | An integrated submersible direct drive screw pump |
| CN107620703B (en) * | 2017-10-10 | 2023-05-26 | 中国石油天然气股份有限公司 | Mechanical-pump integrated submersible direct-drive screw pump oil extraction device and method |
| CN108708851A (en) * | 2018-05-25 | 2018-10-26 | 西南石油大学 | A kind of heavy crude heat extraction multistage overlength submersible screw pumping system |
| CN109861452A (en) * | 2019-02-23 | 2019-06-07 | 中国石油大学(华东) | A permanent magnet motor for subsea drilling |
| CN113605861A (en) * | 2021-08-30 | 2021-11-05 | 杭州乾景科技有限公司 | Novel electric submersible screw pump oil production system |
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| CN103924947A (en) | 2014-07-16 |
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