CN107288580A - A kind of remote control sliding sleeve of bushing communicated based on electrical potential difference - Google Patents
A kind of remote control sliding sleeve of bushing communicated based on electrical potential difference Download PDFInfo
- Publication number
- CN107288580A CN107288580A CN201710664747.0A CN201710664747A CN107288580A CN 107288580 A CN107288580 A CN 107288580A CN 201710664747 A CN201710664747 A CN 201710664747A CN 107288580 A CN107288580 A CN 107288580A
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- China
- Prior art keywords
- sliding sleeve
- inner cylinder
- remote control
- potential difference
- sleeve
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference, including insulating sleeve joint, electric pipe nipple, sliding-sleeve nipple and the casing joint being sequentially connected；Sliding-sleeve nipple includes sliding sleeve outer barrel, sliding sleeve, sliding sleeve inner cylinder, and sliding sleeve inner cylinder is arranged on the inside of sliding sleeve outer barrel, and hydraulic channel chamber is formed between sliding sleeve outer barrel and sliding sleeve inner cylinder, and sliding sleeve is placed in hydraulic channel chamber；Sliding sleeve outer barrel is provided with the first fracturing fluid access opening, and sliding sleeve inner cylinder is provided with the 3rd fracturing fluid access opening, and the first fracturing fluid access opening and the 3rd fracturing fluid passage hole site are relative；Position in sliding sleeve inner cylinder close to electric pipe nipple is provided with 2/2-way magnetic valve, and the magnetic valve liquid flow inlet of 2/2-way magnetic valve is towards on the inside of sliding sleeve inner cylinder.The present invention need not come to downhole transmitted signal by hardware units such as cable, optical fiber and repeaters, greatly save downhole data communication cost, mitigate field operation labor intensity.
Description
Technical field
The present invention relates to Oil/gas Well sliding sleeve of bushing, and in particular to a kind of to be slided based on the remote control sleeve pipe that electrical potential difference is communicated
Set.
Background technology
With going deep into for exploration and development, shale gas, fine and close gas reservoir enter the scale development stage, staged fracturing of horizontal well and
The massive hydraulic fracture mode such as volume fracturing has been increasingly becoming the agent technology of oil-gas field development, and existing staged fracturing technology is main
Have：Open hole packer-sliding sleeve staged fracturing technology, drilling bridging plug staged fracturing technology, big orifice bridging plug staged fracturing technology,
Double envelope list pressure staged fracturing technologies, water-jet staged fracturing technology, but it has significant limitation：In traditional fracturing technique
Bridging plug and packer for packing make construction technology become cumbersome and complicated, and the circulation of fracturing unit and bridging plug is gone into the well, goes out well,
Frequent upper lifting pipe post carries packer to reservoir position, adds construction risk and cost.
In existing intelligent sliding sleeve of bushing technology, Chinese patent CN202125290U discloses a kind of " selective switch sliding sleeve
Intelligent sliding sleeve in component ", the invention is to utilize tripping in special opening-closing tool, opens and closes intelligent sliding sleeve.The program is needed
With coiled tubing belt switch tool operation, complex operation, long construction period.
Patent CN203452763U " a kind of intelligent sliding sleeve that transformation is segmented for horizontal well infinite stages ", the invention is to utilize
Piston controls the self-generating of ball seat, opens and closes intelligent sliding sleeve.The program still needs to complete by pitching, it is impossible to realize that pit shaft is complete
The reciprocal unlatching of latus rectum and sliding sleeve.
Patent CN203891841U " a kind of ground control underground sliding sleeve that transformation is acidified for staged fracturing of horizontal well ", should
Invention utilizes and opens and closes sliding sleeve by wireless wave.The program is mainly used in conventional gas field, and instrument is arranged on oil
, it is necessary to be equipped with packer packing every payzone on pipe, it is impossible to realize the multilayered reservoir automatic paragraphing technique of Oil/gas Well horizontal segment.
In a word, the sliding sleeve opening ways of existing fracturing technique mainly have：Pitching setting type, continuous pipe open-type, hydraulically-controlled type,
Electric-controlled type and electro-hydraulic controllable type.The realization of aforesaid way generally requires to set up between ground well head and underground sliding sleeve and controls to lead to
Road, realizes ground and underground communica tion, is finally completed the defeated of the headstock gear such as the transmission media such as electric power, fluid power or continuous pipe, spheroid
Send.As horizontal segment is segmented the increase of sum of series operation distance, it is ensured that the structure of ground and underground passage is by more difficult.Cause
This, above mentioned problem will extend duty cycle to a certain extent, increase operating cost.
The content of the invention
The technical problems to be solved by the invention are that existing apparatus needs frequent upper lifting pipe post to carry packer to reservoir position
Put, add construction risk and cost, it is therefore intended that a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference, reduction are provided
Completion cost；Avoid frequent upper lifting pipe post from carrying packer to reservoir position, reduce construction risk.
The present invention is achieved through the following technical solutions：
It is a kind of based on electrical potential difference communicate remote control sliding sleeve of bushing, including be sequentially connected insulating sleeve joint, electrically
Pipe nipple, sliding-sleeve nipple and casing joint；The sliding-sleeve nipple includes sliding sleeve outer barrel, sliding sleeve, sliding sleeve inner cylinder, and the sliding sleeve inner cylinder is set
Put on the inside of sliding sleeve outer barrel, hydraulic channel chamber is formed between the sliding sleeve outer barrel and sliding sleeve inner cylinder, the sliding sleeve is placed in hydraulic pressure
In channel chamber；
The sliding sleeve outer barrel is provided with the first fracturing fluid access opening, and the sliding sleeve inner cylinder is provided with the 3rd fracturing fluid passage
Hole, the first fracturing fluid access opening and the 3rd fracturing fluid passage hole site are relative；The second pressure break is provided with the middle part of the sliding sleeve
Liquid access opening；
Position in the sliding sleeve inner cylinder close to electric pipe nipple is provided with 2/2-way magnetic valve, the 2/2-way electromagnetism
The magnetic valve liquid flow inlet of valve is towards on the inside of sliding sleeve inner cylinder.
2/2-way magnetic valve is closed before not operating, after 2/2-way magnetic valve is opened, sliding sleeve inner cylinder
Interior highly pressurised liquid flows through the through hydraulic channel chamber of magnetic valve liquid flow inlet, then promotes sliding sleeve, sleeve movement is to terminal
After only, the first fracturing fluid access opening, the second fracturing fluid access opening, the three access opening alignment of the 3rd fracturing fluid access opening, now, well
Setting of casing sliding sleeve is in open mode, just can carry out follow-up pressure break or acidizing treatment operation.This addresses the problem frequent upper lifting pipe
The problem of post carries packer to reservoir position, reduces construction risk and cost.
Further, electric pipe nipple includes electric interior protection cylinder and electric outer protection cylinder, and the electric interior protection cylinder is set
Electrical system is formed on the inside of electric outer protection cylinder, between the electric interior protection cylinder and electric outer protection cylinder, and chamber is installed.
Further, communicating circuit plate, battery, valve controling circuit plate are provided with electrical system installation cavity room, it is described logical
News circuit board, battery, valve controling circuit plate, 2/2-way magnetic valve are sequentially connected.
Electrical system is formed between electric interior protection cylinder and electric outer protection cylinder chamber is installed, be easy to the phase of electrical system
The overall management of hardware is closed, is suffered damage while it also avoid electrical system；Cable enters electric system through insulating sleeve joint
System installs chamber and is connected to communicating circuit plate, and communicating circuit plate, battery, valve controling circuit plate, 2/2-way magnetic valve connect successively
Connect, extraneous control signal just passes sequentially through cable, communicating circuit plate, battery, valve controling circuit plate and is transferred to 2/2-way electricity
Magnet valve, so as to control opening and closing for 2/2-way magnetic valve.
Further, by setting insulating sulfuration rubber to be isolated between insulating sleeve joint and electric pipe nipple.Insulation
Vulcanization rubber will isolate between insulating sleeve joint and electric pipe nipple, prevent from fleeing directly passing through in the electric current of insulating sleeve joint
Electric pipe nipple, sliding-sleeve nipple and the false triggering for causing 2/2-way magnetic valve.
Further, sliding sleeve outer barrel is by setting anti-dynamic pin to fix sliding sleeve.Anti- dynamic pin fixes sliding sleeve, prevents down
Sliding sleeve is moved in advance during well and well cementing operation.
Further, sealed between insulating sleeve joint and electric interior protection cylinder by sealing ring；The insulation sleeve
By screwed connection between pipe joint and electric outer protection cylinder, while being sealed by sealing ring.
Further, connected between electric pipe nipple and sliding-sleeve nipple by sliding sleeve joint.
Further, by screwed connection between sliding sleeve joint and sliding-sleeve nipple, while being sealed by sealing ring.
Further, it is provided with cable passage hole in insulating sleeve joint, sliding sleeve joint.
Further, sliding sleeve outer barrel and sliding sleeve inner cylinder are connected by anti-cement combined seal ring with sliding sleeve respectively.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention can realize underground long-distance wireless remote control technology truly, it is no longer necessary to by cable, light
The hardware units such as fine and repeater come to downhole transmitted signal, greatly save downhole data communication cost, mitigate field operation
Labor intensity；
2nd, the present invention can improve the accuracy rate of data transfer compared to transmission of wireless signals mode such as hydraulic impulse, sound waves
And reliability, efficient management and commander that can be for field operation provide strong support；
3rd, the present invention can solve the problem that the wellbore integrity occurred during some of complex well storey increase design is poor, time-consuming, be become by set
Influence the problem such as big.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is structure overall schematic of the present invention；
Fig. 2 is the electric pipe nipple structural representation of the present invention；
Fig. 3 is sliding-sleeve nipple structural representation of the present invention；
Fig. 4 to Fig. 6 is anti-cement combined seal ring structural representation of the invention；
Fig. 7 is pipe string installation diagram of the invention.
Mark and corresponding parts title in accompanying drawing：
1- insulating sleeve joints, 16- insulating sulfuration rubber, the first cable passages of 17- hole, the electric interior protection cylinders of 2-, 3- electricity
Gas outer protection cylinder, 4- communication cables, 5- communicating circuit plates, 6- batteries, 7- solenoid valve control circuit plates, 8- sliding sleeve joints, 81-
Two cable passage holes, 9- sliding sleeve outer barrels, 91- the first fracturing fluid access openings, 10- solenoid valve control cables, 11- 2/2-way electromagnetism
Valve, 111- magnetic valve liquid flow inlets, 12- sliding sleeves, 121- the second fracturing fluid access openings, 13- sliding sleeve inner cylinders, the fracturing fluids of 131- the 3rd
Access opening, the anti-dynamic pins of 14-, 15- casing joints, the sealing rings of M1- first, the sealing rings of M2- second, DQ1- electrical system installation cavitys
Room, the sealing rings of M3- the 3rd, the sealing rings of M4- the 4th, the sealing rings of M5- the 5th, YQ1- hydraulic channel chambers, the sealing rings of M6- the 6th,
The anti-cement combined seal rings of M8-, the sealing rings of M9- the 7th, the sealing rings of M10- the 8th, A- ground control units, B- raised platforms around a well, C- raised platforms around a well
Fixing device, D- surface conductor pipes, E- technology conduits, F- production conduits, G- stratum, H- intelligence sleeve pipes, J- payzones.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As shown in Figures 1 to 6, it is a kind of based on electrical potential difference communicate remote control sliding sleeve of bushing, including be sequentially connected it is exhausted
Edge casing joint 1, electric pipe nipple, sliding-sleeve nipple and casing joint 15；The sliding-sleeve nipple includes sliding sleeve outer barrel 9, sliding sleeve 12, slided
Inner cylinder 13 is covered, the sliding sleeve inner cylinder 13 is arranged on the inner side of sliding sleeve outer barrel 9, formed between the sliding sleeve outer barrel 9 and sliding sleeve inner cylinder 13
Hydraulic channel chamber YQ1, the sliding sleeve 12 is placed in hydraulic channel chamber YQ1；
The sliding sleeve outer barrel 9 is provided with the first fracturing fluid access opening 91, and the sliding sleeve inner cylinder 13 is provided with the 3rd fracturing fluid
Access opening 131, the first fracturing fluid access opening 91 and the position of the 3rd fracturing fluid access opening 131 are relative；The middle part of sliding sleeve 12
It is provided with the second fracturing fluid access opening 121；
Position in the sliding sleeve inner cylinder 13 close to electric pipe nipple is provided with 2/2-way magnetic valve 11, the 2/2-way
The magnetic valve liquid flow inlet 111 of magnetic valve 11 is towards the inner side of sliding sleeve inner cylinder 13.
Electric pipe nipple includes electric interior protection cylinder 2 and electric outer protection cylinder 3, and the electric interior protection cylinder 2 is arranged on electrically
The inner side of outer protection cylinder 3, forms electrical system between the electric interior protection cylinder 2 and electrically outer protection cylinder 3 and installs chamber DQ1.
Electrical system is installed and communicating circuit plate 5, battery 6, valve controling circuit plate 7 is provided with chamber DQ1, the communication electricity
Road plate 5, battery 6, valve controling circuit plate 7,2/2-way magnetic valve 11 are sequentially connected.
Sealed between insulating sleeve joint 1 and electrically interior protection cylinder 2 by sealing ring；The insulating sleeve joint 1
By screwed connection between electric outer protection cylinder 3, while being sealed by sealing ring.
Electrically connected between pipe nipple and sliding-sleeve nipple by sliding sleeve joint 8.
By screwed connection between sliding sleeve joint 8 and sliding-sleeve nipple, while being sealed by sealing ring.
Cable passage hole 81 is provided with insulating sleeve joint 1, sliding sleeve joint 8.
By setting insulating sulfuration rubber 16 to be isolated between insulating sleeve joint 1 and electric pipe nipple.
Sliding sleeve outer barrel 9 and sliding sleeve inner cylinder 13 are connected by anti-cement combined seal ring M8 with sliding sleeve 12 respectively.Such as Fig. 4 and
Shown in Fig. 5, because the working environment of the present invention is in the liquid containing gravel or cement microparticle, it is therefore desirable to consider anti-granular pattern
Hydraulic packing, while anti-cement combined seal ring M8 also have reduction frictional resistance function.Fig. 4 and Fig. 6 anti-cement combination sealing
Enclose M8 identical, the anti-cement combined seal ring M8 one end of two identicals is used for sealing liquid, and higher sealing ring one end is used as envelope
Hinder sandstone or cement granules.The main of Fig. 5 combined seal rings left and right ends makees anti-granule medium hydraulic seal, and liquid is mainly made in centre
Body is sealed.
Sliding sleeve outer barrel 9 is by setting anti-dynamic pin 14 to fix sliding sleeve 12.
External diameter 170mm of the present invention, internal diameter 114mm, internal pressure-bearing 140MPa, outside pressure-bearing 120MPa, 150 DEG C of heatproof, tool
The ability of the integrality of the standby big orifice for keeping well and pit shaft；The present invention is applied to all Oil/gas Wells simultaneously, in peupendicular hole, greatly
It is applicable in Wells and horizontal well.
Embodiment 2
In the present invention, if signal is transmitted from ground toward down-hole casing sliding sleeve, on ground by a certain size electric current
Or the pole of voltage one is applied on sleeve pipe, another pole is arranged at 50~200 meters (in theoretical calculation, it is only necessary to away from cannula center 20
Rice is outer, it is contemplated that there is stray EM field interference at scene, and distance is more remote better, it is proposed that at more than 100 meters away from cannula center),
Down-hole casing sliding sleeve upper end be insulating sleeve joint 1, by the upper sleeve of well cementing casing pipe and the present invention sliding sleeve of bushing insulation every
From from the inside of insulating sleeve joint 1 through a cable conductor that the communication in the upper sleeve of well cementing casing pipe and the present invention is electric
Road plate 5 is connected, and communicating circuit plate 5 is using sleeve pipe below as potential reference, and material is thus formed an approximate sliding sleeve of bushing
Two ends electrical potential difference (or electric current) detects circuit.Communicating circuit plate 5 in down-hole casing sliding sleeve receives ground launch electric current or electricity
Changing value is pressed, by the micronormal signal received amplification, filtering, and demodulation draws ground control instruction, then instruction is output to
Solenoid valve control circuit plate 7, driving 2/2-way magnetic valve 11 is opened, and the highly pressurised liquid of sleeve pipe inner cylinder 13 is incorporated into hydraulic pressure leads to
Road chamber YQ1, so as to promote the fracturing fluid of sliding sleeve 12 to the first access opening 91, the second fracturing fluid access opening 121, the 3rd fracturing fluid to lead to
Sleeve pipe inner cylinder 13 is in communication with the outside by road hole 131 after aliging.Underground earthward transmission signal process be the inverse mistake of ground down
Journey.
Embodiment 3
As shown in fig. 7, install the pipe string structure of this sliding sleeve of bushing, including ground control unit A, raised platform around a well B, surface conductor pipe D,
Technology conduit E, production conduit F, the surface conductor pipe D, technology conduit E, production conduit F diameter are sequentially reduced, the top layer
Conduit D, technology conduit E, production conduit F length increase successively；The surface conductor pipe D is embedded in the G of stratum vertically, the skill
Art conduit E is arranged on the inside of surface conductor pipe D, and the production conduit F is arranged on the inside of technology conduit E；The ground control unit A
It is connected by cable with production conduit F；Sliding sleeve of bushing is arranged on the inside of production conduit F.
What prior art was generally used is all that special control passage is set up between ground and sleeve pipe, but with exploitation
Depth and exploitation hop count increase, recovery time can not only be extended by setting up control passage, while also costly laborious, it is impossible to expire
The condition of the existing oil well exploitation of foot.The present embodiment sends control command by ground control unit A, and control command passes through
Cable is delivered on production conduit F, and conduit F is due to that will bear higher pressure and higher temperature for production, typically each use
Control command is passed to 2/2-way magnetic valve 11 by metal material, production conduit F, and 2/2-way magnetic valve 11 just can open cunning
Set 12.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference, it is characterised in that including the insulating sleeve being sequentially connected
Joint (1), electric pipe nipple, sliding-sleeve nipple and casing joint (15)；The sliding-sleeve nipple include sliding sleeve outer barrel (9), sliding sleeve (12),
Sliding sleeve inner cylinder (13), the sliding sleeve inner cylinder (13) is arranged on the inside of sliding sleeve outer barrel (9), the sliding sleeve outer barrel (9) and sliding sleeve inner cylinder
(13) hydraulic channel chamber (YQ1) is formed between, the sliding sleeve (12) is placed in hydraulic channel chamber (YQ1)；
The sliding sleeve outer barrel (9) is provided with the first fracturing fluid access opening (91), and the sliding sleeve inner cylinder (13) is provided with the 3rd pressure break
Liquid access opening (131), the first fracturing fluid access opening (91) and the 3rd fracturing fluid access opening (131) position are relative；The cunning
The second fracturing fluid access opening (121) is provided with the middle part of set (12)；
Position in the sliding sleeve inner cylinder (13) close to electric pipe nipple is provided with 2/2-way magnetic valve (11), the 2/2-way
The magnetic valve liquid flow inlet (111) of magnetic valve (11) is towards on the inside of sliding sleeve inner cylinder (13).
2. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that described
Electric pipe nipple includes electric interior protection cylinder (2) and electric outer protection cylinder (3), and the electric interior protection cylinder (2) is arranged on electrically outer
Protect on the inside of cylinder (3), electrical system is formed between the electric interior protection cylinder (2) and electric outer protection cylinder (3) chamber is installed
(DQ1)。
3. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 2, it is characterised in that described
Electrical system is installed and communicating circuit plate (5), battery (6), valve controling circuit plate (7) is provided with chamber (DQ1), the communication electricity
Road plate (5), battery (6), valve controling circuit plate (7), 2/2-way magnetic valve (11) are sequentially connected.
4. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that described
By setting insulating sulfuration rubber (16) to be isolated between insulating sleeve joint (1) and electric pipe nipple.
5. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that described
Sliding sleeve outer barrel (9) is by setting anti-dynamic pin (14) that sliding sleeve (12) is fixed.
6. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that described
Sealed between insulating sleeve joint (1) and electric interior protection cylinder (2) by sealing ring；The insulating sleeve joint (1) with
By screwed connection between electric outer protection cylinder (3), while being sealed by sealing ring.
7. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that described
Electrically connected between pipe nipple and sliding-sleeve nipple by sliding sleeve joint (8).
8. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 7, it is characterised in that described
Sliding sleeve joint (8) between sliding-sleeve nipple by screwed connection, while being sealed by sealing ring.
9. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 7, it is characterised in that described
Cable passage hole (81) is provided with insulating sleeve joint (1), sliding sleeve joint (8).
10. a kind of remote control sliding sleeve of bushing communicated based on electrical potential difference according to claim 1, it is characterised in that institute
Sliding sleeve outer barrel (9) and sliding sleeve inner cylinder (13) is stated to be connected with sliding sleeve (12) by anti-cement combined seal ring (M8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664747.0A CN107288580B (en) | 2017-08-07 | 2017-08-07 | Remote control sleeve sliding sleeve based on potential difference communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710664747.0A CN107288580B (en) | 2017-08-07 | 2017-08-07 | Remote control sleeve sliding sleeve based on potential difference communication |
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| CN107288580A true CN107288580A (en) | 2017-10-24 |
| CN107288580B CN107288580B (en) | 2023-08-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706295A (en) * | 2020-07-14 | 2020-09-25 | 西南石油大学 | Radio electromagnetic wave direct-current control pressure-relief sleeve valve |
| CN111722038A (en) * | 2020-06-18 | 2020-09-29 | 浙江省开化七一电力器材有限责任公司 | Shielding sleeve detection device |
| CN115324526A (en) * | 2022-07-25 | 2022-11-11 | 中国石油天然气集团有限公司 | Magnetic field mutation detection-based underground sliding sleeve system and control method thereof |
| CN115478810A (en) * | 2022-09-21 | 2022-12-16 | 中国石油天然气集团有限公司 | Magnetic medium induction type sliding sleeve and downhole tool control method |
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