CN110043227A - Oil-submersible hollow rotor screw pump oil production device - Google Patents
Oil-submersible hollow rotor screw pump oil production device Download PDFInfo
- Publication number
- CN110043227A CN110043227A CN201910317054.3A CN201910317054A CN110043227A CN 110043227 A CN110043227 A CN 110043227A CN 201910317054 A CN201910317054 A CN 201910317054A CN 110043227 A CN110043227 A CN 110043227A
- Authority
- CN
- China
- Prior art keywords
- oil
- screw pump
- submersible
- motor
- rotor
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 230000001012 protector Effects 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 23
- 238000010168 coupling process Methods 0.000 claims description 23
- 238000005859 coupling reaction Methods 0.000 claims description 23
- 230000006698 induction Effects 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 239000003129 oil well Substances 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of oil extraction engineering, and belongs to an oil-submersible hollow rotor screw pump oil extraction device with a hollow screw pump rotor and capable of providing a well flushing channel. The oil-submersible screw pump oil production system solves the problem that the existing oil-submersible screw pump oil production system is lack of a controllable hot washing well channel. The submersible pump is composed of an anchoring tool (1), a submersible motor (2), a motor protector (3), a coupler (4), a screw pump stator (5), a screw pump hollow rotor (6), a hot washing valve (7), a centralizer (8), an oil pipe (9), a submersible cable (10), a well head (11), a junction box (12) and a ground control cabinet (13). The invention provides a technical means for establishing oil sleeve communication during oil well production or operation of the oil-submersible screw pump oil production system, improves maintainability of the oil production system, and reduces daily maintenance and operation cost.
Description
Technical field
The present invention relates to petroleum production engineering field, belongs to a kind of screw pump rotor and be hollow and be capable of providing well-flushing passage
Latent oil hollow rotor screw pump extracting device of oil.
Background technique
The screw pump that existing submersible screw pump oil extraction technology uses is the structure of solid rotor, is not had between oil pipe and casing
Controllable well-flushing communicating passage.When oil well needs hot-washing wax remover, need the normal rotary work of screw pump that could infuse casing
The hot wash liquid entered is drawn into oil pipe.When oil well submersible screw pump assembly breaks down, when needing operation well-flushing, due to spiral shell
Bar pump can not rotary work, hot wash channel at this moment can not be established inside and outside tubing string, the pressure of underground can not be discharged, be balanced, cause
Load is big during lift pipe string, security risk is high, needs overhaul troop to construct, increases operating cost, extend construction period.
Lack controllable hot wash well-flushing passage to solve above-mentioned existing submersible screw pumping system, gives full play to electrical submersible spiral shell
Bar pumps the superiority of oil extraction system, and inventing a kind of submersible screw pump rotor is hollow and being capable of providing well-flushing passage one
Kind novel submersible screw pump oil production device.
Summary of the invention
It is that latent oil that is hollow and being capable of providing well-flushing passage is empty the purpose of the present invention is disclosing a kind of screw pump rotor
Heart multi-rotor screw pump oil extracting device.
The present invention is by anchor tool, submersible motor, motor protecter, shaft coupling, screw pump stator, hollow turn of screw pump
Son, heated scrubing valve, centralizer, oil pipe, oil-submersible cable, well head, terminal box, ground control cabinet composition；Wherein anchor tool and latent oil
Motor is threadedly coupled, and motor protecter couples with submersible motor flange, and motor protecter is that flange couples with shaft coupling, shaft coupling
It is to be threadedly coupled with screw pump stator, shaft coupling is to be threadedly coupled with screw pump sleeve rotor, screw pump stator and tubing round thread
Connection, screw pump sleeve rotor top are threadedly coupled with heated scrubing valve；Oil-submersible cable passes through tubing centrilizer and latent oil electricity in underground
The connection of machine flange, top pass through well head and couple with terminal box, ground control cabinet.
The submersible motor is latent oil permanent magnet synchronous motor or latent oil asynchronous induction motor or AC servo electricity
One of machine.
The motor protecter is capsule-type or one of precipitating type or Combined motor protector.
The shaft joint is one of universal joint shaft coupling or flexible shaft.
The heated scrubing valve is one of controllable cone valve or ball valve.
Beneficial effects of the present invention:
1) invention, which realizes, does not change submersible screw pump operating condition, provides oil well production hot wash channel and operation hot wash is logical
Road improves safeguarding for oil extraction system, reduces daily maintenance and operating cost.
2) forced area of the rotor under pump work differential pressure action can be reduced by using sleeve rotor, to reduce
Rotor is pressurized the risk of failure, reduces workload, to extend service life of screw pump, improve various parts can
By property and technological adaptability.
Detailed description of the invention: Fig. 1 is schematic structural view of the invention.
In figure: anchor tool 1, submersible motor 2, motor protecter 3, shaft coupling 4, screw pump stator 5, hollow turn of screw pump
Sub 6, heated scrubing valve 7, centralizer 8, oil pipe 9, oil-submersible cable 10, well head 11, terminal box 12, ground control cabinet 13.
Specific embodiment: the present invention is further described below in conjunction with attached drawing, the present invention is by anchor tool 1, latent oil
Motor 2, motor protecter 3, shaft coupling 4, screw pump stator 5, screw pump sleeve rotor 6, heated scrubing valve 7, centralizer 8, oil pipe 9,
Oil-submersible cable 10, well head 11, terminal box 12, ground control cabinet 13 form；Wherein anchor tool 1 and submersible motor 2 are screw thread company
Connect, motor protecter 3 and submersible motor 2 are that flange couple, and motor protecter 3 couples with shaft coupling 4 for flange, shaft coupling 4 and
Screw pump stator 5 is to be threadedly coupled, and shaft coupling 4 is to be threadedly coupled with screw pump sleeve rotor 6,9 spiral shell of screw pump stator 5 and oil pipe
Line connection, 6 top of screw pump sleeve rotor are threadedly coupled with heated scrubing valve 7；Oil-submersible cable 10 underground pass through tubing centrilizer 8 with
The connection of 2 flange of submersible motor, top pass through well head 11 and couple with terminal box 12, ground control cabinet 13.
The submersible motor 2 is latent oil permanent magnet synchronous motor or latent oil asynchronous induction motor or AC servo electricity
One of machine.
The motor protecter 3 is capsule-type or one of precipitating type or Combined motor protector.
The shaft joint 4 is one of universal joint shaft coupling or flexible shaft.
The heated scrubing valve 7 is one of controllable cone valve or ball valve.
Wherein 6 inner cavity lower part of screw pump sleeve rotor is connected to by 4 inlet opening of shaft coupling with oil jacket annulus, and top passes through heat
Washing the control of valve 7 can be connected to oil pipe 7.Well liquid is pressurized after 4 inlet opening of shaft coupling enters screw pump and enters in oil pipe 7.
When work, Surface power drive passes to underground submersible motor by ground control cabinet 13, terminal box 12, oil-submersible cable 10
2, the rotation of submersible motor 2 drives 6 rotary work of screw pump sleeve rotor by motor protecter 3, shaft coupling 4, and well liquid is through shaft coupling
Inlet opening on device 4, which enters in pump, to be given rise in oil pipe.The revolving speed of screw pump carries out stepless speed regulation realization by ground control cabinet 13.
When oil well needs hot-washing wax remover, there are two types of hot wash working methods:
First way, screw pump carry out hot wash while rotary work, and hot wash liquid is injected from oil sets annular space, a part
Hot wash liquid is directly given rise in oil pipe 9 by screw pump, and another part hot wash liquid is empty by inlet opening, the screw pump of shaft coupling 4
The intercommunicating pore of 6 lower part of heart rotor enters 6 internal cavities of rotor, opens on screw pump sleeve rotor 6 under certain pressure effect
The heated scrubing valve 7 in portion, oil jacket connection, hot wash liquid enter in oil pipe 9, it is established that hot wash process；When hot wash hydraulic coupling is not enough to beat
When opening heated scrubing valve 7, heated scrubing valve 7 is closed.This be when screw pump can work normally recommendation hot wash mode, be oil well during normal production
Working method.
The second way, screw pump not rotary work, hot wash liquid injects from oil sets annular space, by shaft coupling 4 into
Fluid apertures, 6 lower part of screw pump sleeve rotor intercommunicating pore enter 6 internal cavities of rotor, screw pump is empty under certain pressure effect
The heated scrubing valve 7 on 6 top of heart rotor is opened, and oil jacket connection, hot wash liquid is returned out of oil pipe 9 to well head, it is established that hot wash process；Work as heat
When washing lotion insufficient pressure is to open heated scrubing valve 7, heated scrubing valve 7 is closed, and oil jacket channel is no longer connected to.This is that screw pump cannot normal work
As when the hot wash mode that uses, used when oil well operation is safeguarded under normal circumstances.
Claims (5)
1. latent oil hollow rotor screw pump extracting device of oil, it is characterised in that: it is by anchor tool (1), submersible motor (2), motor
Protector (3), shaft coupling (4), screw pump stator (5), screw pump sleeve rotor (6), heated scrubing valve (7), centralizer (8), oil pipe
(9), oil-submersible cable (10), well head (11), terminal box (12), ground control cabinet (13) composition；Wherein anchor tool (1) and latent oil
Motor (2) is threadedly coupled, and motor protecter (3) couples with submersible motor (2) flange, and motor protecter (3) is with shaft coupling (4)
Flange connection, shaft coupling (4) are to be threadedly coupled with screw pump stator (5), and shaft coupling (4) and screw pump sleeve rotor (6) are spiral shell
Line connection, screw pump stator (5) and oil pipe (9) are threadedly coupled, and are connected at the top of screw pump sleeve rotor (6) with heated scrubing valve (7) screw thread
It connects；Oil-submersible cable (10) passes through tubing centrilizer (8) in underground and couples with submersible motor (2) flange, and top passes through well head (11)
Couple with terminal box (12), ground control cabinet (13).
2. latent oil hollow rotor screw pump extracting device of oil according to claim 1, it is characterised in that: submersible motor (2) is
Latent oil permanent magnet synchronous motor or one of latent oil asynchronous induction motor or AC servo motor.
3. latent oil hollow rotor screw pump extracting device of oil according to claim 1, it is characterised in that: motor protecter (3)
For one of capsule-type or precipitating type or Combined motor protector.
4. latent oil hollow rotor screw pump extracting device of oil according to claim 1, it is characterised in that: shaft joint (4) is ten thousand
To section one of formula shaft coupling or flexible shaft.
5. latent oil hollow rotor screw pump extracting device of oil according to claim 1, it is characterised in that: heated scrubing valve (7) is can
Control one of cone valve or ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317054.3A CN110043227A (en) | 2019-04-19 | 2019-04-19 | Oil-submersible hollow rotor screw pump oil production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317054.3A CN110043227A (en) | 2019-04-19 | 2019-04-19 | Oil-submersible hollow rotor screw pump oil production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043227A true CN110043227A (en) | 2019-07-23 |
Family
ID=67277949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910317054.3A Pending CN110043227A (en) | 2019-04-19 | 2019-04-19 | Oil-submersible hollow rotor screw pump oil production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043227A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102188A (en) * | 2020-01-08 | 2020-05-05 | 徐海英 | Screw pump with equal wall thickness |
| CN111119751A (en) * | 2019-11-18 | 2020-05-08 | 中国石油天然气股份有限公司 | But outer plug of oil pipe is not tied up and is tied up cable oil well operation device |
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
| CN113047813A (en) * | 2019-12-27 | 2021-06-29 | 中国石油天然气股份有限公司 | Oil drainage method for electric submersible screw pump well |
| CN113494279A (en) * | 2021-07-26 | 2021-10-12 | 长江大学 | Oil pumping device matched with composite continuous oil pipe and control method thereof |
| CN113756750A (en) * | 2020-06-03 | 2021-12-07 | 中石化石油工程技术服务有限公司 | Balanced liquid extracting device for spiral pump in horizontal well pipe |
| 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 |
| CN118030511A (en) * | 2024-04-11 | 2024-05-14 | 新疆坤隆石油装备有限公司 | Overhead gas anchor submersible screw pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305048A (en) * | 2000-09-28 | 2001-07-25 | 大庆油田有限责任公司采油工艺研究所 | Technology for washing well by screw pump with hollow rotor |
| CN104279157A (en) * | 2014-09-15 | 2015-01-14 | 刘云卿 | Screw pump with metal stator with equal wall thickness |
| CN104653129A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for washing screw pump oil well |
| CN205206792U (en) * | 2015-11-12 | 2016-05-04 | 杭州乾景科技有限公司 | Oil of diving directly drives screw pump oil production equipment |
-
2019
- 2019-04-19 CN CN201910317054.3A patent/CN110043227A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305048A (en) * | 2000-09-28 | 2001-07-25 | 大庆油田有限责任公司采油工艺研究所 | Technology for washing well by screw pump with hollow rotor |
| CN104653129A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Method for washing screw pump oil well |
| CN104279157A (en) * | 2014-09-15 | 2015-01-14 | 刘云卿 | Screw pump with metal stator with equal wall thickness |
| CN205206792U (en) * | 2015-11-12 | 2016-05-04 | 杭州乾景科技有限公司 | Oil of diving directly drives screw pump oil production equipment |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119751A (en) * | 2019-11-18 | 2020-05-08 | 中国石油天然气股份有限公司 | But outer plug of oil pipe is not tied up and is tied up cable oil well operation device |
| CN113047813A (en) * | 2019-12-27 | 2021-06-29 | 中国石油天然气股份有限公司 | Oil drainage method for electric submersible screw pump well |
| CN111102188A (en) * | 2020-01-08 | 2020-05-05 | 徐海英 | Screw pump with equal wall thickness |
| CN113756750A (en) * | 2020-06-03 | 2021-12-07 | 中石化石油工程技术服务有限公司 | Balanced liquid extracting device for spiral pump in horizontal well pipe |
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
| CN112855085A (en) * | 2021-01-20 | 2021-05-28 | 西南石油大学 | Submersible direct-drive screw pump gas lift composite lifting process suitable for offshore low-yield well |
| CN113494279A (en) * | 2021-07-26 | 2021-10-12 | 长江大学 | Oil pumping device matched with composite continuous oil pipe and control method thereof |
| 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 |
| CN118030511A (en) * | 2024-04-11 | 2024-05-14 | 新疆坤隆石油装备有限公司 | Overhead gas anchor submersible screw pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |
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| RJ01 | Rejection of invention patent application after publication |