CN110130855A - A kind of switchable sliding sleeve of pressure break full-bore and its application method - Google Patents
A kind of switchable sliding sleeve of pressure break full-bore and its application method Download PDFInfo
- Publication number
- CN110130855A CN110130855A CN201910586970.7A CN201910586970A CN110130855A CN 110130855 A CN110130855 A CN 110130855A CN 201910586970 A CN201910586970 A CN 201910586970A CN 110130855 A CN110130855 A CN 110130855A
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- China
- Prior art keywords
- sliding sleeve
- ontology
- gear
- chamber
- pressure break
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Classifications
-
- 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
- E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
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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
- E21B34/16—Control means therefor being outside the borehole
-
- 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
Abstract
Present invention relates particularly to a kind of switchable fracturing sliding bush of full-bore and its application methods.A kind of switchable sliding sleeve of pressure break full-bore and its application method, including top connection, lower contact, sliding sleeve ontology and outer sliding sleeve cylinder；The upper and lower ends of the sliding sleeve ontology are separately connected top connection and lower contact；Outer sliding sleeve cylinder is located at the outside of sliding sleeve ontology, and is rotatablely connected with sliding sleeve ontology；It is characterized by: being equipped with annular groove on the sliding sleeve ontology and outer sliding sleeve cylinder；The outer sliding sleeve cylinder is equipped with driven gear, and sliding sleeve ontology is equipped with the driving gear for driving driven gear；It further include the driving device for driving driving gear to rotate.The moving component of the invention high-pressure fluid at the outside of sliding sleeve, pressure break, which will not be formed the moving component of sliding sleeve, to be impacted.
Description
Technical field
The present invention relates to petroleum, natural gas extraction technical field, common pressure break in especially various well stimulation operations
The improvement of sliding sleeve, the switchable fracturing sliding bush of specially a kind of full-bore and its application method.
Background technique
Recently as the increasingly mature of horizontal well technology, staged fracturing technology has become the weight of China's petroleum resources exploitation
Means are wanted, the fracturing yield increasing transformation of Low permeable oil and gas reservoirs and fine and close oil gas is mainly used in.Sliding sleeve as reservoir communication/isolation and
The core tool of reservoir management occupies an important position in staged fracturing technology, and sliding sleeve staged fracturing technique is also using most
One of extensive partial pressure processes.The multistage pitching sliding sleeve that staged fracturing is mainly used with sliding sleeve at present, using different low of diameter
Density pressure break ball is suppressed to control the unlatching of each section of sliding sleeve by well head after being shipped to sliding sleeve tee, to realize multistage piecewise
Separate stratum fracfturing has the advantages that easy for construction, construction efficiency is high.But multistage pitching sliding sleeve there are the following problems: 1) by
Pressure break ball and ball seat there must be certain differential limitation, cannot achieve unlimited pole staged fracturing.2) sliding sleeve can only be by hydraulic
It opens, can not close, be unable to control after oil/gas well water outlet.3) pressure break ball exists and is influenced by medium in pit shaft, can not be effective
Sealed ball seat can not be opened effectively sometimes.4) ball seat of sliding sleeve keeps completion tubular column drifting smaller, and later period operation is difficult.5) sliding sleeve
Inner tube structure complexity, mechanical moving element and tongue, step are more, and high-pressure fluid medium is easy to ball seat, mechanical movement portion
Part damages, and causes construction accident.6) necking down of sliding sleeve internal diameter can generate throttling action to fracturing fluid, and will increase construction
Frictional resistance, operational discharge capacity is limited, is not able to satisfy the technical requirements of huge discharge in volume fracturing.After above-mentioned multiple defects will result directly in
The additional workload of continuous complete well and well-repairing work increases, while also increasing task difficulty and risk.
Conventional sliding sleeve be by sliding sleeve inside inner sliding sleeve execute corresponding mechanical movement to open and close sliding sleeve, and
And conventional sliding sleeve inner tube structure is complicated, and containing more ball seat, tongue and mechanical moving element, high pressure mixing stream when pressing crack construction
Body medium can tongue to the inner sliding sleeve cylinder inside sliding sleeve and mechanical moving element form impact, and then cause sliding sleeve normal
Opening and closing, cause pressing crack construction accident, influence pressing crack construction efficiency.
Sliding sleeve is still in inside for the prior art " rotary full-bore fracturing switch ", although inner cylinder also has rotating mechanism,
It is rotating mechanism finally or inner sliding sleeve cylinder is driven to be axially moved, i.e., or by the axial movement of inner sliding sleeve cylinder come real
The opening and closing of existing sliding sleeve；And its rotating mechanism is complex, drive sliding sleeve inner cylinder to realize also needs to shear when being axially moved
Pin；And rotating mechanism and inner sliding sleeve are two independent mechanisms.
Summary of the invention
The present invention is directed in view of the above-mentioned problems, proposing a kind of to open and close the one of sliding sleeve by the rotation of outer sliding sleeve cylinder
The switchable sliding sleeve of kind pressure break full-bore and its application method.
Technical program of the present invention lies in:
A kind of switchable sliding sleeve of pressure break full-bore, including top connection, lower contact, sliding sleeve ontology and outer sliding sleeve cylinder；The sliding sleeve
The upper and lower ends of ontology are separately connected top connection and lower contact；Outer sliding sleeve cylinder is located at the outside of sliding sleeve ontology, and with sliding sleeve ontology
Rotation connection；Annular groove is equipped on the sliding sleeve ontology and outer sliding sleeve cylinder；The outer sliding sleeve cylinder is equipped with driven gear, sliding sleeve
Ontology is equipped with the driving gear for driving driven gear；It further include the driving device for driving driving gear to rotate.
The outer sliding sleeve cylinder inner wall is equipped with internal gear and also correspondingly is provided on the outer wall of sliding sleeve ontology and internal gear
The external gear matched；It further include the driving device for driving external gear.
Further include: in sliding sleeve ontology and the communication chamber of interaction, control chamber, transmission cavity and performs chamber
Room；It further include ground control system；The communication chamber is that the signal that ground is sent is converted into mould by acoustic-electric conversion module
Quasi- electric signal, and analog electrical signal is converted into digital electric signal by A/D conversion module, and digital electric signal is transmitted to control
The communication chamber of chamber；The control chamber is to receive the digital electric signal and identified to the digital electric signal, judge, locate
Manage and generate the MCU of corresponding control signal；The transmission cavity includes for receiving to control the control signal of chamber and for driving
The driving device of dynamic external gear；The execution chamber includes external gear.
The communication chamber includes sequentially connected acoustic-electric conversion module and A/D conversion module, the acoustic-electric conversion module
It is electrically connected with ground control system, the A/D conversion module is electrically connected with MCU.
It is described control chamber further include connect with MCU and for its power power supply module；The power supply module is lithium battery,
The power supply module is additionally provided with the charging interface for charging.
The transmission cavity includes drive bearing and connect with drive bearing and provide the motor mould of electric energy for drive bearing
Block；The motor module is minitype speed reducing motor；The drive bearing is connect with external gear；The minitype speed reducing motor is equipped with
For controlling the automatic switch of minitype speed reducing motor opening and closing, the automatic switch is electrically connected with MCU.
The upper and lower ends of the sliding sleeve ontology be fixedly connected respectively by connecting pin between top connection, lower contact.
A kind of application method of the switchable sliding sleeve of pressure break full-bore, including top connection, lower contact, sliding sleeve ontology and outer cunning
Sleeve；The upper and lower ends of the sliding sleeve ontology are separately connected top connection and lower contact；Outer sliding sleeve cylinder is located at the outside of sliding sleeve ontology,
And it is rotatablely connected with sliding sleeve ontology；It is characterized by: sliding sleeve ontology is rotatablely connected with outer sliding sleeve cylinder by gear drive module；Institute
Stating gear drive module includes the internal gear positioned at outer sliding sleeve cylinder inner wall, and sliding sleeve body outer wall is equipped with matched outer with internal gear
Gear；It further include the driving device for driving external gear；Annular groove is equipped on the sliding sleeve ontology and outer sliding sleeve cylinder；Driving
Device drives external gear and then drives internal gear so that the annular groove on sliding sleeve ontology is sent out with the annular groove on outer sliding sleeve cylinder
The raw opening and closing being overlapped or misplace and then realize outer sliding sleeve cylinder.
It further include the communication chamber in sliding sleeve ontology and to interact, control chamber, transmission cavity and execution chamber；
It communicates chamber and the earth shock acoustic signals that ground is sent successively is converted to analog electrical signal, digital electric signal, and will be digital
Electric signal passes to the MCU of control chamber；The digital electric signal is identified, is judged, handled and is generated corresponding control by MCU
Signal；The automatic switch of transmission cavity controls minitype speed reducing motor unlatching after receiving the control signal, by minitype speed reducing motor
The drive bearing rotation of transmission cavity is driven, and then drives external gear movement and then drives internal gear rotation, so that sliding sleeve
Annular groove on ontology is overlapped or misplaces and then realize the opening and closing of outer sliding sleeve cylinder with the annular groove on outer sliding sleeve cylinder.
The technical effects of the invention are that:
(1) compared with the tube-in-tube structure of inward turning, inward turning mode only on the basis of conventional sliding sleeve, realizes opening for sliding sleeve
It closes；And the present invention this outward turning structure not only realizes the switchable of sliding sleeve, and the entirety of sliding sleeve ontology be it is smooth, do not have
Moving component will not be caused moving component to damage by the impact of high-pressure fluid, influence sliding sleeve use；
(2) on the other hand, inward turning is to reduce internal diameter in internal rotating, influences the discharge capacity of pressing crack construction, may not apply to volume
Pressure break；Outward turning internal diameter is larger, and moving component will not influence inner diameter size in outside, and operational discharge capacity is unaffected, is able to carry out body
It overstocks and splits, realize full-bore.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.
Fig. 1 is the best main view half section schematic of the present invention.
Fig. 2 is the best main view full section structural schematic diagram of the present invention.
Fig. 3 is the structural schematic diagram of the switchable sliding sleeve top connection of full-bore.
Fig. 4 is the structural schematic diagram of the switchable sliding sleeve lower contact of full-bore.
Fig. 5 is sliding sleeve body construction partial enlargement diagram.
Fig. 6 is the best full section structural schematic diagram of outer sliding sleeve cylinder.
Appended drawing reference: 1- top connection, 2- connecting pin, 3- outer sliding sleeve cylinder, 4- sliding sleeve ontology, 5- execute chamber, 6- transmission
Chamber, 7- control chamber, 9- communicate chamber, 10- lower contact, 11- annular groove, 12- drive bearing, 13- external gear, 15- motor
Module, 17- power supply module, 18- charging interface, 20- acoustic-electric conversion module, 21-A/D conversion module, 22-MCU, 24- internal gear.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
With reference to the accompanying drawing and the preferred embodiment specific embodiment that the present invention will be described in detail.
Embodiment 1
A kind of switchable sliding sleeve of pressure break full-bore, including top connection 1, lower contact 10, sliding sleeve ontology 4 and outer sliding sleeve cylinder 3；It is described
The upper end of sliding sleeve ontology 4 connects top connection 1 by connecting pin 2, and lower end connects lower contact 10 by connecting pin 2；Outer sliding sleeve
Cylinder 3 is located at the outside of sliding sleeve ontology 4, and is rotatablely connected with sliding sleeve ontology 4；It is equipped on the sliding sleeve ontology 4 and outer sliding sleeve cylinder 3
The identical annular groove 11 of five sizes；The outer sliding sleeve cylinder 3 is equipped with driven gear, and sliding sleeve ontology 4 is equipped with for driving quilt
The driving gear of moving gear.Driving gear drives driven gear and then outer sliding sleeve cylinder 3 is driven to be rotated in the forward direction, and makes sliding sleeve ontology
Annular groove 11 on 4 is overlapped with the annular groove 11 on outer sliding sleeve cylinder 3, i.e. opening fluid hole, carries out pressing crack construction；After the completion of construction
Driving gear drives driven gear and then outer sliding sleeve cylinder 3 is driven to carry out counter-rotating, makes annular groove 11 on sliding sleeve ontology 4 and outer
Annular groove 11 on sliding sleeve 3 misplaces, i.e. closing fluid hole, i.e. the closing switchable sliding sleeve of pressure break full-bore.
Embodiment 2
On the basis of embodiment 1,3 inner wall of outer sliding sleeve cylinder is equipped with driven gear, i.e. internal gear 24, correspondingly, sliding sleeve
It also is provided on the outer wall of ontology 4 and the matched external gear 13 of internal gear 24, i.e. driving gear；It further include for driving external gear 13
Driving device.
Embodiment 3
On the basis of embodiment 2, further includes the communication chamber 9 in sliding sleeve ontology 4 and to interact, control chamber 7, passes
Dynamic chamber 6 and execution chamber 5；It further include ground control system；The communication chamber 9 includes sequentially connected acoustic-electric conversion module
20 and A/D conversion module 21, the acoustic-electric conversion module 20 are electrically connected with ground control system, the A/D conversion module 21 with
MCU22 electrical connection.The control chamber 7 includes MCU22 and the power supply module 17 connecting with MCU22；The power supply module 17 is
Lithium battery, the power supply module 17 are additionally provided with the charging interface 18 for charging.The transmission cavity 6 include drive bearing 12 and
It is connect with drive bearing 12 and provides the motor module 15 of electric energy for drive bearing 12；The motor module 15 is micro speed reducing electricity
Machine；The drive bearing 12 is connect with external gear 13；The minitype speed reducing motor is equipped with and opens for controlling minitype speed reducing motor
The automatic switch closed, the automatic switch are electrically connected with MCU22.
Embodiment 4
A kind of application method of the switchable sliding sleeve of pressure break full-bore, including top connection 1, lower contact 10, sliding sleeve ontology 4 and outer cunning
Sleeve 3；The upper and lower ends of the sliding sleeve ontology 4 are separately connected top connection 1 and lower contact 10；Outer sliding sleeve cylinder 3 is located at sliding sleeve ontology 4
Outside, and with sliding sleeve ontology 4 be rotatablely connected；It is characterized by: sliding sleeve ontology 4 and outer sliding sleeve cylinder 3 pass through gear drive module
Rotation connection；The gear drive module includes the internal gear 24 positioned at 3 inner wall of outer sliding sleeve cylinder, and 4 outer wall of sliding sleeve ontology is equipped with
With the matched external gear 13 of internal gear 24；It further include the driving device for driving external gear 13；The sliding sleeve ontology 4 and outer cunning
Annular groove 11 is equipped on sleeve 3；Driving device drives external gear 13 and then drives internal gear 24 so that on sliding sleeve ontology 4
Annular groove 11 and the annular groove 11 on outer sliding sleeve cylinder 3 be overlapped or misplace and then realize the opening and closing of outer sliding sleeve cylinder 3.
Embodiment 5
On the basis of embodiment 4, further includes the communication chamber 9 in sliding sleeve ontology 4 and to interact, control chamber 7, passes
Dynamic chamber 6 and execution chamber 5；Communication chamber 9 by the earth shock acoustic signals that ground is sent successively be converted to analog electrical signal,
Digital electric signal, and digital electric signal is passed to the MCU22 for controlling chamber 7；The digital electric signal is known by MCU22
Not, judge, handle and generate corresponding control signal；The automatic switch of transmission cavity 6 controls miniature after receiving the control signal
Decelerating motor is opened, and drives the drive bearing 12 of transmission cavity 6 to rotate by minitype speed reducing motor, and then drives external gear 13 dynamic
Make and then internal gear 24 is driven to rotate, so that the annular groove 11 on the annular groove 11 and outer sliding sleeve cylinder 3 on sliding sleeve ontology 4
The opening and closing for being overlapped or misplace and then realize outer sliding sleeve cylinder 3 occur.
Specific implementation process are as follows:
Pressure break full-bore of the present invention is switchable to be slided in use, connecting into first with oil pipe under a string of down-hole string lower going-into-wells
Target zone position, the pressure break under lower going-into-well are initially in closed state with the switchable sliding sleeve of full-bore.After pressing crack construction starts, lead to
The earth shock acoustic signals that ground control system emits an opening sliding sleeve are crossed, which is passed by oil pipe
The switchable sliding sleeve of pressure break full-bore positioned at underground is transported to, which is converted to mould by acoustic-electric inverting model
Quasi- electric signal, which is converted to digital electric signal by A/D conversion module 21, and the digital electric signal is passed to control
The MCU22 of chamber 7 processed, MCU22 identify the digital electric signal, are judged, are handled, and generate corresponding control signal；It passes
The automatic switch of dynamic chamber 6 controls minitype speed reducing motor unlatching after receiving the control signal, is driven and is passed by minitype speed reducing motor
The drive bearing 12 of dynamic chamber 6 rotates, and then external gear 13, internal gear 24 is successively driven to rotate, and driving outer sliding sleeve cylinder 3 carries out just
To rotation；It is overlapped the annular groove 11 on sliding sleeve ontology 4 with the annular groove 11 on outer sliding sleeve cylinder 3, i.e. opening fluid hole, is pressed
Split construction；Construction completes rear drive gear and drives driven gear and then outer sliding sleeve cylinder 3 is driven to carry out counter-rotating, makes sliding sleeve ontology
The annular groove 11 on annular groove 11 and outer sliding sleeve cylinder 3 on 4 misplaces, i.e. closing fluid hole, i.e. closing pressure break full-bore can be opened
Close sliding sleeve.
Embodiment 6
For multiple fracturing, such as horizontal well multistage pressure break, multiple pressure breaks are connected with the switchable sliding sleeve of full-bore with oil pipe,
And match with the interval of institute pressure break, then by tubular column string tripping in pit shaft, after construction starts, passes through ground control system and send ground
Acoustic signals are shaken in face, can once send one or more signal, open one or more pressure break full-bore respectively
Switchable sliding sleeve, and then the volume fracturing transformation of horizontal well may be implemented.
Specific implementation is as described below, after the completion of ground is by the switchable sliding sleeve of pressure break full-bore and oil pipe matching connection,
By position corresponding in tubular column string lower going-into-well, it is all enter well pressure break be initially completely in closing shape with the switchable sliding sleeve of full-bore
State.After first layer pressure break starts, earth shock acoustic signals, the switchable cunning of pressure break full-bore are sent by ground control system
Set internal drive outer sliding sleeve cylinder 3 is rotated in the forward direction, and the annular groove on the annular groove 11 and outer sliding sleeve cylinder 3 on sliding sleeve ontology 4 is made
11 are overlapped, i.e. opening fluid hole, and all sliding sleeves of this layer are fully open, then carry out pressing crack construction.After the completion of layer construction,
Earth shock acoustic signals are sent by ground control system, pressure break is carried out with the switchable sliding sleeve driving outer sliding sleeve cylinder 3 of full-bore
Counter-rotating makes the annular groove 11 on annular groove 11 and outer sliding sleeve cylinder 3 on sliding sleeve ontology 4 misplace, by all sliding sleeves of this layer
All close.Then the control signal of multiple openings is sent from ground again, the multiple pressure break full-bores for opening the second interval can
Switching sliding sleeve starts second layer pressure break, and so on, until horizontal well full section pressure break is completed.
Equipment in this programme is the prior art.Such as in acoustic-electric conversion module 20, A/D conversion module 21 and MCU22
For involved the relevant technologies with application number 201410121668.1, patent name is " the farmland fire based on optoacoustic effect
Remote alarming system " in relevant programme it is consistent.
Claims (9)
1. a kind of switchable sliding sleeve of pressure break full-bore, including top connection (1), control chamber (10), sliding sleeve ontology (4) and outer cunning
Sleeve (3)；The upper and lower ends of the sliding sleeve ontology (4) are separately connected top connection (1) and control chamber (10)；Outer sliding sleeve cylinder (3)
It is rotatablely connected positioned at the outside of sliding sleeve ontology (4), and with sliding sleeve ontology (4)；It is characterized by: the sliding sleeve ontology (4) and outer
Annular groove (11) are equipped on sliding sleeve (3)；The outer sliding sleeve cylinder (3) is equipped with driven gear, and sliding sleeve ontology (4), which is equipped with, to be used
In the driving gear of driving driven gear；It further include the driving device for driving driving gear to rotate.
2. the switchable sliding sleeve of pressure break full-bore according to claim 1, it is characterised in that: outer sliding sleeve cylinder (3) inner wall
Equipped with internal gear (24), correspondingly, it also is provided on the outer wall of sliding sleeve ontology (4) and internal gear (24) matched external gear
(13)；It further include the driving device for driving external gear (13).
3. the switchable sliding sleeve of pressure break full-bore according to claim 2, it is characterised in that: further include: it is located at sliding sleeve ontology
(4) interior and interaction communication chamber (9), control chamber (7), transmission cavity (6) and execution chamber (5)；It further include ground
Control system；
Communication chamber (9) is converted into analog electrical signal for the signal that ground is sent is passed through acoustic-electric conversion module (20), and
Analog electrical signal is converted into digital electric signal by A/D conversion module (21), and digital electric signal is transmitted to control chamber (7)
Communication chamber (9)；
The control chamber (7) is to receive the digital electric signal and the digital electric signal is identified, judges, handles and generated
The MCU(22 of corresponding control signal)；
The transmission cavity (6) includes the control signal for receiving to control chamber (7) and the drive for driving external gear (13)
Dynamic device；
The execution chamber (5) includes external gear (13).
4. the switchable sliding sleeve of pressure break full-bore according to claim 3, it is characterised in that: the communication chamber (9) includes
Sequentially connected acoustic-electric conversion module (20) and A/D conversion module (21), the acoustic-electric conversion module (20) and ground control are
System electrical connection, the A/D conversion module (21) are electrically connected with MCU(22).
5. the switchable sliding sleeve of pressure break full-bore according to claim 4, it is characterised in that: the control chamber (7) is also wrapped
Include and MCU(22) connection and for its power supply power supply module (17)；The power supply module (17) is lithium battery, the power supply module
(17) it is additionally provided with the charging interface (18) for charging.
6. the switchable sliding sleeve of pressure break full-bore according to claim 5, it is characterised in that: the transmission cavity (6) includes
Drive bearing (12) and the motor module (15) for connecting and be drive bearing (12) offer electric energy with drive bearing (12)；The electricity
Machine module (15) is minitype speed reducing motor；The drive bearing (12) connect with external gear (13)；On the minitype speed reducing motor
Equipped with the automatic switch for controlling minitype speed reducing motor opening and closing, the automatic switch is electrically connected with MCU(22).
7. the switchable sliding sleeve of pressure break full-bore according to claim 6, it is characterised in that: the sliding sleeve ontology (4) it is upper
It is fixedly connected respectively by connecting pin (2) between lower both ends and top connection (1), control chamber (10).
8. a kind of application method of the switchable sliding sleeve of pressure break full-bore, it is characterised in that: including top connection (1), control chamber
(10), sliding sleeve ontology (4) and outer sliding sleeve cylinder (3)；The upper and lower ends of the sliding sleeve ontology (4) are separately connected top connection (1) and control
Chamber (10) processed；Outer sliding sleeve cylinder (3) is located at the outside of sliding sleeve ontology (4), and is rotatablely connected with sliding sleeve ontology (4)；Its feature exists
In: sliding sleeve ontology (4) is rotatablely connected with outer sliding sleeve cylinder (3) by gear drive module；The gear drive module includes being located at
The internal gear (24) of outer sliding sleeve cylinder (3) inner wall, sliding sleeve ontology (4) outer wall are equipped with and internal gear (24) matched external gear
(13)；It further include the driving device for driving external gear (13)；It is equipped on the sliding sleeve ontology (4) and outer sliding sleeve cylinder (3)
Annular groove (11)；
Driving device drives external gear (13) and then drives internal gear (24) so that annular groove (11) on sliding sleeve ontology (4)
The opening and closing of outer sliding sleeve cylinder (3) are overlapped or misplaced and then realize with the annular groove (11) on outer sliding sleeve cylinder (3).
9. a kind of application method of the switchable sliding sleeve of pressure break full-bore according to claim 8, it is characterised in that: further include
Interior and interaction communication chamber (9), control chamber (7), transmission cavity (6) and execution chamber positioned at sliding sleeve ontology (4)
(5)；It communicates chamber (9) and the earth shock acoustic signals that ground is sent successively is converted to analog electrical signal, digital electric signal, and
Digital electric signal is passed to the MCU(22 of control chamber (7))；By MCU(22) digital electric signal is identified, is judged,
It handles and generates corresponding control signal；The automatic switch of transmission cavity (6) controls micro speed reducing electricity after receiving the control signal
Machine is opened, and drives the drive bearing (12) of transmission cavity (6) to rotate by minitype speed reducing motor, and then drive external gear (13) dynamic
Make and then drive internal gear (24) rotation, so that on the annular groove (11) and outer sliding sleeve cylinder (3) on sliding sleeve ontology (4)
The opening and closing for being overlapped or misplace and then realize outer sliding sleeve cylinder (3) occur for annular groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910586970.7A CN110130855A (en) | 2019-07-02 | 2019-07-02 | A kind of switchable sliding sleeve of pressure break full-bore and its application method |
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| CN201910586970.7A CN110130855A (en) | 2019-07-02 | 2019-07-02 | A kind of switchable sliding sleeve of pressure break full-bore and its application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112031726A (en) * | 2020-08-31 | 2020-12-04 | 长江大学 | Turbine drive circumference sliding sleeve formula pulse generation instrument |
| CN116480315A (en) * | 2023-03-17 | 2023-07-25 | 西南石油大学 | Horizontal well reciprocable-opening and-closing infinite-stage fracturing well cementation sliding sleeve and technological method |
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| CN203847067U (en) * | 2013-12-10 | 2014-09-24 | 中国石油集团西部钻探工程有限公司 | Two-stage pressure differential slide bushing |
| CN204716201U (en) * | 2014-07-04 | 2015-10-21 | 中国石油化工股份有限公司 | A kind of pilot-controlled switch sliding sleeve |
| CN204266988U (en) * | 2014-08-12 | 2015-04-15 | 中国石油化工股份有限公司 | A kind of pilot-controlled switch sliding sleeve |
| CN204312025U (en) * | 2014-11-18 | 2015-05-06 | 中国石油化工股份有限公司 | A kind of outer sliding sleeve can closing switch |
| CN104653152A (en) * | 2015-02-08 | 2015-05-27 | 孔涛 | Electric control multifunctional switch |
| CN205297519U (en) * | 2015-12-25 | 2016-06-08 | 中国石油天然气股份有限公司 | Sliding sleeve device |
| CN105715246A (en) * | 2016-01-25 | 2016-06-29 | 大庆市福万通石油科技有限公司 | Wireless control electric repeated opening-closing type sliding sleeve sand jet |
| CN105696973A (en) * | 2016-03-07 | 2016-06-22 | 大庆市福万通石油科技有限公司 | Underground plug valve with electric power wirelessly controlled and capable of being opened and closed repeatedly |
| CN210217687U (en) * | 2019-07-02 | 2020-03-31 | 陕西延长石油(集团)有限责任公司研究院 | But fracturing is with full latus rectum switching sliding sleeve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112031726A (en) * | 2020-08-31 | 2020-12-04 | 长江大学 | Turbine drive circumference sliding sleeve formula pulse generation instrument |
| CN116480315A (en) * | 2023-03-17 | 2023-07-25 | 西南石油大学 | Horizontal well reciprocable-opening and-closing infinite-stage fracturing well cementation sliding sleeve and technological method |
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