CN105569616B - A kind of adjustable displacement spiral takes sand lifting device and technique - Google Patents
A kind of adjustable displacement spiral takes sand lifting device and technique Download PDFInfo
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- CN105569616B CN105569616B CN201410641646.8A CN201410641646A CN105569616B CN 105569616 B CN105569616 B CN 105569616B CN 201410641646 A CN201410641646 A CN 201410641646A CN 105569616 B CN105569616 B CN 105569616B
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Abstract
The invention discloses a kind of adjustable displacement spiral to take sand lifting device and technique, wherein device includes drive system, sucker rod, also include the two-stage screw ladder hoisting system positioned at horizontal segment, the drive system sucker rod is connected with two-stage screw ladder hoisting system, the two-stage screw ladder hoisting system includes huge discharge all-metal inside spin stator, small displacement all-metal inside spin stator, twin-stage external spiral rotor, the huge discharge all-metal inside spin stator, small displacement all-metal inside spin stator is axially linked into an integrated entity by the resigning pipe of centre, the twin-stage external spiral rotor left-half is huge discharge rotor-end, right half part is small displacement rotor-end.The present invention is rotated using control system control ground drive system, transmits torque to downhole double-stage spiral step lifting device by sucker rod, production fluid in oil reservoir is given rise to ground by lifting device according to displacement requirements by oil pipe.Realize that horizontal segment efficiently takes sand lifting under hot environment.
Description
Technical field
The present invention relates to the lifting equipment in horizontal well, specifically a kind of adjustable displacement spiral take sand lifting device and
Technique.
Background technology
In recent years, increasing year by year with oil field complex hole condition, Holes of Complicated Wells exploitation also turn into the pith of oil field development,
The lifting of oil well horizontal section, the problems such as sand lifting, heavy crude heat extraction is taken as the difficult point in exploitation, lifted for horizontal segment, often at present
Common oil well pump is often lowered into straight well section, or small gradient well section, pumping is carried out more than horizontal segment, easily causes oil pump
It is unreasonable to hang depth, feed liquor efficiency reduces.Small part horizontal well is lifted using electric pump, but working condition is limited under by real well
System, cable extrusion etc. influence, and application effect is undesirable.Sand lifting is taken for horizontal segment high temperature and is currently in the exploratory stage, is not had
Form ripe technology.
The content of the invention
It is an object of the invention to provide a kind of adjustable displacement spiral to take sand lifting device and technique, utilizes control system control
Ground drive system processed is rotated, and downhole double-stage spiral step lifting device is transmitted torque to by sucker rod, is lifted
Rise device and production fluid in oil reservoir is given rise into ground by oil pipe according to displacement requirements.Realize that horizontal segment is efficiently taken under hot environment
Sand lifts.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of adjustable displacement spiral takes sand lifting dress
Put, including drive system, sucker rod, in addition to it is located at the two-stage screw ladder hoisting system of horizontal segment, the drive system is taken out
Beam hanger is connected with two-stage screw ladder hoisting system, and the two-stage screw ladder hoisting system includes huge discharge all-metal inside spin
Stator, small displacement all-metal inside spin stator, twin-stage external spiral rotor, the huge discharge all-metal inside spin stator, small displacement
All-metal inside spin stator is axially linked into an integrated entity by the resigning pipe of centre, and the twin-stage external spiral rotor left-half is big
Discharge capacity rotor-end, right half part are small displacement rotor-end, and the huge discharge rotor-end can be stretched into axially in huge discharge all-metal
Helical stator inner chamber carries out huge discharge lifting, and the small displacement rotor-end can axially stretch into small displacement all-metal inside spin stator
Inner chamber carries out small displacement lifting.
The two-stage screw ladder hoisting system rear end is small displacement all-metal inside spin stator rear end connection positioning feed liquor
Device, the positioning feeding device outer wall open up the inlet opening that can enter itself inner chamber.
The sucker rod is connected by anchor with two-stage screw ladder hoisting system.
The sucker rod will pass through inclination section in front of being connected with anchor, and sucker rod added in inclination section it is universal
Axle device, at Hooks coupling universal coupling and both ends and middle setting centralizer.
At least three sand devices are also set up on the sucker rod, sand device is also equipped with Hooks coupling universal coupling.
In order to reach above-mentioned another object, present invention employs following technical scheme, takes sand using adjustable displacement spiral and lifts
Rise device and carry out the technique that adjustable displacement spiral takes sand lifting, its step includes：
Anchor of the drive system by sucker rod connection positioned at horizontal segment, twin-stage spiral shell of the anchor connection positioned at horizontal segment
Ladder hoisting system is revolved, then two-stage screw ladder hoisting system rear end reconnects positioning feeding device, and sucker rod is in inclination section
Add Hooks coupling universal coupling.
Drive system drives sucker rod, Hooks coupling universal coupling rotation, and twin-stage external spiral turn was connected to after then entering anchor
On son, discharge capacity regulation is then carried out, by twin-stage external spiral rotor by sucker rod tripping in, is lifted when being lowered into two-stage screw ladder
During the positioning feeding device of System Back-end, twin-stage external spiral rotor is stopped, is now adjusted according to the total length of sucker rod anti-
Punching is away from above carrying sucker rod, be now considered that small small displacement rotor-end of root diameter in small displacement all-metal inside spin
Bore of stator carries out small displacement lifting, and that a part of huge discharge rotor-end of rotor slightly will not now stop row in resigning pipe
Liquid；If the distance for above carrying sucker rod is the length that dead space adds small displacement all-metal inside spin bore of stator, now think
A thick huge discharge rotor-end of rotor carries out huge discharge lifting in huge discharge all-metal inside spin bore of stator, and rotor is carefully
That a part of small displacement rotor-end in resigning pipe, will not also stop that well liquid enters in pump just.
In inclination section, righting and guiding are carried out by multistage Hooks coupling universal coupling and centralizer, make sucker rod not by radially
In the case of power, it is placed centrally along oil pipe, while the transmission of lower curved section turning moment is not influenceed, avoids sucker rod partial wear；
In straight well section and inclination section, underground sand device is equipped with, sand device is in opening state, oil well production in lifting process
Sand device can be passed through by going out liquid and sand grains, and when stopping well, sand device is closed, and the sand grains on its top can sink with section
Drop, it is gathered in above sand device, when driving a well again, the sand grains of aggregation lifts discharge with production fluid again, avoids sand from burying lifting dress
Put.
Compared to prior art, the invention has the advantages that：
1st, the lifting technology meets 350 DEG C of high temperature liftings all using metal device element；
2nd, using two-stage screw ladder lifting structures, realize that cyclic steam stimulation huge discharge early stage quick fluid-discharge and later stage are small
The normal pumping production of discharge capacity；
3rd, sand block structure is segmented under planned well, realizes that lifting sand grains settles with section, avoids sand from burying lifting device；
4th, can be by hoisting system tripping in High angle well section and horizontal well using multistage Hooks coupling universal coupling and centralizer structure
Section, makes sucker rod can also be placed in the middle along oil pipe in High angle section, reduces sucker rod partial wear；
5th, by 1,2,3,4 lifting technologies formed, oil well lifting is realized, particularly horizontal well thermal recovery horizontal segment lifts,
Submergence is improved, increases feed liquor efficiency, improves lifting efficiency to greatest extent.
Brief description of the drawings
Fig. 1 is that a kind of adjustable displacement spiral of the present invention takes the structural representation of sand lifting device；
Fig. 2 is figure two-stage screw ladder hoisting system structural representation.
In figure：Drive system 1, sucker rod 2, sand device 3, centralizer 4, Hooks coupling universal coupling 5, anchor 6, twin-stage
Spiral step hoisting system 7, huge discharge all-metal inside spin stator 701, twin-stage external spiral rotor 702, resigning pipe 703,
Small displacement all-metal inside spin stator 704, positioning feeding device 705.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings it is as follows, but accompanying drawing only provide reference with
Purposes of discussion, not it is used for being any limitation as the present invention.
According to Fig. 1 and Fig. 2, a kind of adjustable displacement spiral takes sand lifting device, including drive system 1, sucker rod 2,
Also include the two-stage screw ladder hoisting system 7 positioned at horizontal segment, the drive system sucker rod lifts with two-stage screw ladder
System connects, and the two-stage screw ladder hoisting system is including in huge discharge all-metal inside spin stator 701, small displacement all-metal
Helical stator 704, twin-stage external spiral rotor 702, the huge discharge all-metal inside spin stator, small displacement all-metal inside spin are determined
Son is axially linked into an integrated entity by the resigning pipe 703 of centre, and the twin-stage external spiral rotor left-half is huge discharge rotor-end,
Right half part is small displacement rotor-end, and the huge discharge rotor-end can axially stretch into huge discharge all-metal inside spin bore of stator
Huge discharge lifting is carried out, the small displacement rotor-end can axially stretch into small displacement all-metal inside spin bore of stator and carry out float
Amount lifting.The two-stage screw ladder hoisting system rear end is small displacement all-metal inside spin stator rear end connection positioning feed liquor dress
705 are put, the positioning feeding device outer wall opens up the inlet opening that can enter itself inner chamber.The sucker rod by anchor with it is double
The hoisting system connection of level spiral step.The sucker rod will pass through inclination section in front of being connected with anchor, and sucker rod exists
Inclination section adds Hooks coupling universal coupling 5, at Hooks coupling universal coupling and both ends and middle setting centralizer 4.Also set up on the sucker rod
At least three sand devices 3, are also equipped with sand device on Hooks coupling universal coupling.
Using adjustable displacement spiral take sand lifting device carry out adjustable displacement spiral take sand lifting technique, its step bag
Include：
Drive system drives sucker rod, Hooks coupling universal coupling rotation, and twin-stage external spiral turn was connected to after then entering anchor
On son, discharge capacity regulation is then carried out, by twin-stage external spiral rotor by sucker rod tripping in, is lifted when being lowered into two-stage screw ladder
During the positioning feeding device of System Back-end, twin-stage external spiral rotor is stopped, is now adjusted according to the total length of sucker rod anti-
Punching is away from above carrying sucker rod, be now considered that small small displacement rotor-end of root diameter in small displacement all-metal inside spin
Bore of stator carries out small displacement lifting, and that a part of huge discharge rotor-end of rotor slightly will not now stop row in resigning pipe
Liquid；If the distance for above carrying sucker rod is the length that dead space adds small displacement all-metal inside spin bore of stator, now think
A thick huge discharge rotor-end of rotor carries out huge discharge lifting in huge discharge all-metal inside spin bore of stator, and rotor is carefully
That a part of small displacement rotor-end in resigning pipe, will not also stop that well liquid enters in pump just.
The lifting technology lifts early stage in steam soak, with the huge discharge spiral lifting in two-stage screw ladder hoisting system
System quickly discharges pit shaft reclaimed water, when normally lifting oil reservoir production fluid, by sucker rod tripping in two-stage screw ladder hoisting system
Small displacement spiral lifting system in, carry out produce daily pumping production liquid, ultimately form a set of net horizontal section high temperature and take sand lifting technology,
Because hoisting system can deepen lifting submergence with tripping in High angle well section and horizontal segment, increase hoisting system feed liquor efficiency,
Realize efficiently lifting；
The lifting technology all using metal device and high-temperature components, realizes 350 lower DEG C of high temperature liftings；
In net horizontal section, normal pumping discharge opeing is carried out using two-stage screw ladder hoisting system, the top of lifting device is
Huge discharge full-metallic spiral lifting device, can discharge in time because of steam injection and caused by High water cut well liquid, after realizing steam soak
Quick drainage discharge opeing.Huge discharge full-metallic spiral lifting device bottom, which is stepped down, manages, for when huge discharge lifts, placing small displacement
The rotor of full-metallic spiral lifting device, when small displacement lifts, place the rotor of huge discharge full-metallic spiral lifting device.Step down
Pipe bottom is small displacement all-metal screw pump, after completing quick fluid-discharge, carries out normal pumping lifting with production according to stratum, realizes oil
The energy-efficient lifting of well.Small displacement full-metallic spiral lifting device bottom connects positioning feeding device, realizes the positioning of helical rotor
Feed liquor function.Two-stage screw ladder hoisting system is without other moving components in addition to helical rotor, and no pulse is steady when realizing lifting
Discharge opeing, while lifting energy consumption is reduced, reduce lifting cost；
In inclination section, righting and guiding are carried out by multistage Hooks coupling universal coupling and centralizer, make sucker rod not by radially
In the case of power, it is placed centrally along oil pipe, while the transmission of lower curved section turning moment is not influenceed, avoids sucker rod partial wear；
In straight well section and inclination section, underground sand device is equipped with, sand device is in opening state, oil well production in lifting process
Sand device can be passed through by going out liquid and sand grains, and when stopping well, sand device is closed, and the sand grains on its top can sink with section
Drop, it is gathered in above sand device, when driving a well again, the sand grains of aggregation lifts discharge with production fluid again, avoids sand from burying lifting dress
Put.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with this
The equivalence changes of the patent spirit of invention, it all should all belong to the scope of the claims of the present invention.
Claims (6)
1. a kind of adjustable displacement spiral takes sand lifting device, including drive system, sucker rod, it is characterised in that also includes being located at
The two-stage screw ladder hoisting system of horizontal segment, the sucker rod are connected with two-stage screw ladder hoisting system, the twin-stage spiral shell
Revolving ladder hoisting system includes huge discharge all-metal inside spin stator, small displacement all-metal inside spin stator, twin-stage external spiral turn
Son, the huge discharge all-metal inside spin stator, small displacement all-metal inside spin stator are axially connected by the resigning pipe of centre
Integrally, the twin-stage external spiral rotor left-half is huge discharge rotor-end, and right half part is small displacement rotor-end, described big
Discharge capacity rotor-end can axially stretch into huge discharge all-metal inside spin bore of stator and carry out huge discharge lifting, the small displacement rotor
End can axially stretch into small displacement all-metal inside spin bore of stator and carry out small displacement lifting；The sucker rod by anchor with
Two-stage screw ladder hoisting system connects, and the sucker rod will pass through inclination section, and sucker rod in front of being connected with anchor
Hooks coupling universal coupling is added in inclination section, at the both ends of Hooks coupling universal coupling and middle setting centralizer.
2. a kind of adjustable displacement spiral according to claim 1 takes sand lifting device, it is characterised in that the two-stage screw
Ladder hoisting system rear end is small displacement all-metal inside spin stator rear end connection positioning feeding device, outside the positioning feeding device
Wall opens up the inlet opening that can enter itself inner chamber.
3. a kind of adjustable displacement spiral according to claim 1 takes sand lifting device, it is characterised in that on the sucker rod
At least three sand devices are also set up, sand device is also equipped with Hooks coupling universal coupling.
4. taking sand lifting device using the adjustable displacement spiral described in any one of claims 1 to 33 carries out adjustable displacement spiral
The technique for taking sand lifting, its step include：
Anchor of the drive system by sucker rod connection positioned at horizontal segment, two-stage screw rank of the anchor connection positioned at horizontal segment
Terraced hoisting system, then two-stage screw ladder hoisting system rear end, which reconnects, positions feeding device, and sucker rod adds in inclination section
Hooks coupling universal coupling；
Drive system drives sucker rod, Hooks coupling universal coupling rotation, is then connected to after anchor on twin-stage external spiral rotor,
Then discharge capacity regulation is carried out, by twin-stage external spiral rotor by sucker rod tripping in, when being lowered into two-stage screw ladder hoisting system
During the positioning feeding device of rear end, twin-stage external spiral rotor is stopped, now adjusts dead space according to the total length of sucker rod,
Sucker rod is above carried, is now considered that small small displacement rotor-end of root diameter in small displacement all-metal inside spin stator
Chamber carries out small displacement lifting, and that a part of huge discharge rotor-end of rotor slightly will not stop discharge opeing in resigning pipe；On if
The distance for carrying sucker rod is the length that dead space adds small displacement all-metal inside spin bore of stator, now thinks one of rotor slightly
Head huge discharge rotor-end carries out huge discharge lifting in huge discharge all-metal inside spin bore of stator, rotor carefully that is a part of small
Discharge capacity rotor-end in resigning pipe, will not also stop that well liquid enters in pump just.
5. the technique that adjustable displacement spiral according to claim 4 takes sand lifting, it is characterised in that in inclination section, pass through
Multistage Hooks coupling universal coupling and centralizer carry out righting and guiding, make sucker rod not in the case of by radial load, placed in the middle along oil pipe
Place, while the transmission of lower curved section turning moment is not influenceed, avoid sucker rod partial wear.
6. the technique that adjustable displacement spiral according to claim 4 takes sand lifting, it is characterised in that in straight well section and deflecting
Section, underground sand device is equipped with, sand device is in opening state in lifting process, and produced liquid in oil well and sand grains can pass through gear
Sand device, when stopping well, sand device is closed, and the sand grains meeting fractional sedimentation on sand device top, is gathered in above sand device,
When driving a well again, the sand grains of aggregation lifts discharge with production fluid again, avoids sand from burying lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641646.8A CN105569616B (en) | 2014-11-07 | 2014-11-07 | A kind of adjustable displacement spiral takes sand lifting device and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410641646.8A CN105569616B (en) | 2014-11-07 | 2014-11-07 | A kind of adjustable displacement spiral takes sand lifting device and technique |
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| Publication Number | Publication Date |
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| CN105569616A CN105569616A (en) | 2016-05-11 |
| CN105569616B true CN105569616B (en) | 2017-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2625574Y (en) * | 2003-04-22 | 2004-07-14 | 于海涛 | Oil extraction pipe column for screw pump |
| CN2665408Y (en) * | 2003-10-14 | 2004-12-22 | 大庆油田有限责任公司 | Down-hole oil extraction double screw pump |
| CN100510401C (en) * | 2007-01-10 | 2009-07-08 | 大庆油田有限责任公司 | Lifting device of electric submersible piston pump in horizontal wells |
| RU2364711C1 (en) * | 2008-03-24 | 2009-08-20 | Атлас Мисбахович Бадретдинов | Oil well pumping unit for extraction and pumping in of water into stratum |
| CN203685564U (en) * | 2014-02-24 | 2014-07-02 | 曲玉峰 | Screw pump |
| CN103953315B (en) * | 2014-04-04 | 2015-06-10 | 唐山玉联机电有限公司 | Special underground direct-driven discharging and extracting equipment for coal bed gas |
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