CN115075793B - Infinite intelligent sliding sleeve - Google Patents
Infinite intelligent sliding sleeve Download PDFInfo
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- CN115075793B CN115075793B CN202210773755.XA CN202210773755A CN115075793B CN 115075793 B CN115075793 B CN 115075793B CN 202210773755 A CN202210773755 A CN 202210773755A CN 115075793 B CN115075793 B CN 115075793B
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- fracturing
- dart
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- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000004913 activation Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 24
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000003213 activating effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 230000000670 limiting effect Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000009849 deactivation Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003345 natural gas Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- IUYHQGMDSZOPDZ-UHFFFAOYSA-N 2,3,4-trichlorobiphenyl Chemical compound ClC1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 IUYHQGMDSZOPDZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000005086 pumping Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 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
- 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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- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
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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
- 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
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
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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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Manipulator (AREA)
- Actuator (AREA)
Abstract
The invention relates to an oil and natural gas fracturing tool, in particular to an infinite intelligent sliding sleeve, which comprises the following specific technical scheme: the infinite intelligent sliding sleeve comprises a sliding sleeve part, a dart part and a control part; the sliding sleeve part comprises an upper sleeve, a lower sleeve and a piston; the dart part comprises an inner tube, an upper buckle, a lower buckle, a fracturing ball, a ball seat clamping sleeve, a ball seat chuck, a rubber cup, a positioning pin, a transmission shaft, a supporting shaft, a transmission gear and a bearing; the control circuit comprises a strain sensor, an acquisition circuit, a control circuit, a power supply and a driving motor. The dart has two states of activation and non-activation, and dart initial state is the non-activation state, and the in-process of puting in can freely pass through arbitrary sliding sleeve, and the dart carries out a count through a sliding sleeve, and when the previous sliding sleeve of target position was passed through, the dart was never activated and was switched to the activation state, opened the piston when reaching appointed sliding sleeve and formed the fracturing piston of holding down on the casing of opening, realized the fracturing effect.
Description
Technical Field
The invention relates to an oil and natural gas fracturing tool, in particular to an infinite intelligent fracturing sliding sleeve, and belongs to the technical field of oil and gas field fracturing.
Background
Under the condition that the oil and gas resource production and exploitation are continuously deep, the number of unconventional oil and gas wells with low porosity and low permeability is continuously increased, and the difficulty of oilfield production and exploitation is gradually increased. The position of dense oil gas in strategic energy deployment is increasingly prominent, but is influenced by a plurality of adverse factors such as dense reservoir space, strong heterogeneity, poor saturation of oil-bearing gas and the like, the exploitation difficulty is high, and more segmentation numbers are needed to use reserves and release productivity. The staged fracturing technology of the horizontal well is fully utilized in the actual exploitation process of the oil field, so that the oil field yield is effectively improved, and the staged fracturing technology is a yield increasing means widely applied to the current oil field. In recent years, horizontal well multistage sectional fracturing has been developed as a main means for effectively developing unconventional oil and gas reservoirs.
The fracturing sliding sleeve is one of core components of the staged fracturing tool for the horizontal well and is a key point for influencing the staged number of the staged fracturing of the horizontal well. The number of stages which can be realized by the conventional ball-throwing sliding sleeve is limited, the number of segments is limited, the difficulty of building a high-yield well is high, the flow channel is insufficient, the area of cracks which are not swept is large, the conventional process fracturing well still has larger residual reserves and pressures, and resource waste exists; the technique such as pumping bridge plug, oil connection drag fracturing can meet the series requirement, but has the limitations of discontinuous fracturing construction, long operation time, pipe column operation and the like, and needs a horizontal well staged fracturing tool with more convenient operation and stronger function.
Disclosure of Invention
Aiming at the technical defects, the invention provides the infinite-stage intelligent fracturing sliding sleeve, which can realize infinite stage and can realize accurate identification of a sliding sleeve part by acquiring signals and switching dart states.
The technical scheme of the invention is as follows: an infinite intelligent sliding sleeve comprises a sliding sleeve part, a dart part and a control part; the sliding sleeve part comprises an upper sleeve, a lower sleeve, a nozzle plug and a piston; the dart part comprises a ball seat chuck, a fracturing ball seat, a ball seat screw, an activating sleeve, a transmission shaft, a movable sealing ring, a buckle sealing ring, a driving gear, a driving motor, a buckle sealing ring, an inner pipe, a fracturing ball, a chuck screw, an upper buckle, sealing oil, a lower buckle, a positioning pin and a rubber cup; the control part comprises a signal detection unit, a signal acquisition circuit, a modulation signal module, an operational amplification circuit, a filter circuit, an MCU core main control module, a motor driving circuit and a power supply module.
The sliding sleeve part and the casing pipe are put into the well together, and the upper sleeve and the lower sleeve are threaded.
The upper sleeve is circumferentially and uniformly provided with 6 fracturing holes, the upper end of the upper sleeve is connected with the sleeve, and the lower end of the upper sleeve is connected with the lower sleeve.
The nozzle plug is arranged in the fracturing hole of the upper sleeve.
The ball seat chuck circumference distribution have 12 jack catchs, the tip of jack catchs incurvate, the internal diameter is the same with fracturing ball diameter, fracturing ball can realize fixed axial displacement, ball seat chuck base is equipped with the screw hole, is connected with fracturing ball seat through the chuck screw.
The fracturing ball seat both ends respectively be equipped with four screw holes that circumference distributes, one end is connected with the ball seat chuck, one end and inner tube connection, the lower extreme of fracturing ball seat is equipped with the internal spline, with the internal spline cooperation of inner tube upper end, four counter bores of lower terminal surface equipartition for installation support bearing.
The inner tube is provided with an external spline, a sealing groove, a sealing cavity, a pin hole, a leather cup groove and six rectangular through-flow grooves.
The activation sleeve is symmetrically provided with two through holes and threaded holes.
The upper end of the buckle is provided with 12 clamping claws uniformly distributed in the circumferential direction, the tip end of each clamping claw is trapezoidal, the lower end of each clamping claw is provided with an internal thread and is connected with the lower buckle, 4 through holes uniformly distributed in the circumferential direction are formed in the middle of the buckle, and one end of each through hole is provided with a counter bore with larger diameter for installing a support bearing; four clamping claws with an interval of 90 degrees are arranged on the outer end faces of the 12 clamping claws, and rectangular grooves are formed in the outer end faces of the clamping claws and used for installing strain sensors.
The upper end of the lower fastener is provided with external threads which are connected with the upper fastener, and the lower end of the lower fastener is provided with 4 through holes corresponding to the pin holes on the inner tube for installing the positioning pins.
The inner tube, go up buckle and form sealed chamber down between the buckle, sealed chamber in be control portion, including driving motor, drive gear, PCB board.
The shape of the rubber cup is the same as that of the cup groove on the inner tube, and the opening part of the cup is provided with a rectangular groove with a certain width.
The signal detection unit comprises four strain sensors and a signal transmission cable, wherein the strain sensors are arranged in clamping claws at the upper ends of the clamping buckles, and sealing and protection of the strain sensors and the signal transmission cable are realized through a welding method after the installation is completed.
The beneficial effects of the invention are as follows: (1) The design of the deformable buckle enables the dart part to realize diameter change under the pressure effect when the dart part is in an unactivated state, so that the dart part passes through pistons of any stage number; when in an activated state, the buckle cannot deform and can not form pressure holding through the piston, so that the fracturing effect is realized. (2) The control part accurately positions the position of the appointed sliding sleeve by collecting and identifying the signals of the strain sensor, so that accurate fracturing operation is realized. (3) The sensor transmits the acquired deformation signals to the control part, and the control part controls the driving motor to activate the dart part, so that the blockage of the flow passage can be realized, and the fracturing requirement of an unlimited number of stages can be met.
Drawings
FIG. 1 is a block diagram of an infinite intelligent sliding sleeve according to the present invention;
FIG. 2 is a block diagram of the activation state of the infinite intelligent sliding sleeve of the present invention;
FIG. 3 is a schematic view of a tee chuck configuration;
FIG. 4 is a schematic diagram of a fracturing ball seat structure;
FIG. 5 is a schematic view of the structure of the inner tube;
fig. 6 is a schematic view of the upper buckle structure.
Part names marked in the drawings: the device comprises a 1-ball seat chuck, a 2-fracturing ball seat, a 3-ball seat screw, a 4-activation sleeve, a 5-transmission shaft, a 6-movable sealing ring, a 7-clamping sealing ring, an 8-driving gear, a 9-driving motor, a 10-inner pipe sealing ring, an 11-inner pipe, a 12-fracturing ball, a 13-chuck screw, a 14-upper sleeve, a 15-support bearing, a 16-nozzle plug, a 17-piston, a 18-upper clamping buckle, a 19-sealing grease, a 20-lower sleeve, a 21-PCB board, a 22-lower clamping buckle, a 23-positioning pin and a 24-rubber leather cup.
Detailed Description
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the mode of fig. 1 of the specification, for example: the upper and lower positional relationship is determined according to the direction of fig. 1 of the specification.
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1, an infinite intelligent sliding sleeve comprises a sliding sleeve part, a dart part and a control part; wherein the sliding sleeve part comprises an upper sleeve 14, a lower sleeve 20, a nozzle plug 16 and a piston 17; the dart part comprises a ball seat chuck 1, a fracturing ball seat 2, a ball seat screw 3, an activating sleeve 4, a transmission shaft 5, a movable sealing ring 6, a buckle sealing ring 7, a driving gear 8, a driving motor 9, an inner pipe sealing ring 10, an inner pipe 11, a fracturing ball 12, a chuck screw 13, an upper buckle 18, sealing grease 19, a lower buckle 22, a positioning pin 23 and a rubber cup 24; wherein the control section includes: the device comprises a signal detection unit, a signal acquisition circuit, a modulation signal module, an operational amplification circuit, a filter circuit, an MCU core main control module, a motor drive circuit and a power supply module.
The sliding sleeve part and the casing are put into the well together, the casing is provided with one sliding sleeve part at intervals, and the well depth can be obtained by calculating the number of the sliding sleeve parts in the casing, so that the identification of the infinite intelligent sliding sleeve to the series and the fracturing are facilitated.
The infinite intelligent sliding sleeve comprises an unactivated state and an activated state, wherein the accompanying figure 1 is the unactivated state, and the accompanying figure 2 is the activated state. When the infinite intelligent sliding sleeve is in an unactivated state, the piston 17 is fixed with the upper sleeve 14 through a pin, at the moment, the activating sleeve 4 in the dart part is in an initial position, when the dart passes through the piston 17, a trapezoid surface at the upper end of the upper buckle 18 is contacted with the piston 17, and the tip of the upper buckle 18 deforms and bends inwards under the action of pressure, so that the dart passes through the piston 17; when the infinite-level intelligent sliding sleeve is changed from an unactivated state to an activated state, the transmission shaft 5 is driven by the driving motor 9 to rotate, the activating sleeve 4 is driven to move downwards to limit the inward deformation of the upper buckle 18, at the moment, a dart passes through the piston, the tip of the upper buckle 18 cannot deform due to the limiting effect of the activating sleeve 4, the dart part cannot pass through the piston, so that pressure is generated, a pin between the piston 17 and the upper sleeve 14 is sheared under the action of pressure, the dart part drives the piston 17 to move downwards to expose the nozzle plug 16 in fracturing fluid, and the nozzle plug 16 is opened with the increase of pressure, so that the fracturing effect is realized.
Ball seat chuck 1 be fixed with fracturing ball seat 2 through four circumference equipartition's screw hole 102, the last distribution of ball seat chuck 1 has 12 deformable spacing claws 101, spacing claw 101 sharp-pointed bending part carries out the axial spacing to fracturing ball 12, realizes that fracturing ball 12 has fixed axial displacement, guarantees in putting in-process pressure ball 12 not to separate with dart part and does not form simultaneously and hold down the pressure again, spacing claw 101 has flexibility and makes fracturing ball 12 install simpler and more easily.
The fracturing ball seat 2 be equipped with the external spline 111 cooperation on internal pipe 11 with internal spline 201, guarantee to have relative rotation between fracturing ball seat 2 and the internal pipe 11, fracturing ball seat 2 is equipped with screw hole 203, is fixed with ball seat cutting ferrule 1 through chuck screw 13, the lower terminal surface is equipped with four counter bores 202 and is used for installing support bearing 15.
The upper end of the inner pipe 11 is provided with an external spline 111 which is matched with an internal spline 201 of the fracturing ball seat 2; the sealing grooves 112, 113 and 114 are used for installing O-shaped sealing rings to realize sealing effect and prevent external fracturing fluid from entering the sealing cavity to damage the control part; a rectangular cavity 118 on the inner tube 11 and the lower buckle 22 form a cavity after being assembled, and a PCB 21, a driving motor 9, a driving gear 8 and a power supply of the control system are arranged in the cavity; the positioning holes 115 correspond to the positioning holes on the lower buckle 22, the lower buckle 22 and the inner tube 11 are completely fixed after the positioning pin 23 is installed, and meanwhile, the upper buckle 18 and the lower buckle 22 are connected through threads, so that the upper buckle 18 and the inner tube 11 are also completely fixed; the cup groove 117 is used for installing a rubber cup; six rectangular diversion trenches 116 are formed at the lower end of the inner tube 11 and are used for preventing the fracturing balls 12 of the lower-stage sliding sleeve from blocking the flow channels.
The control section includes: the device comprises a signal monitoring and detecting unit, a signal acquisition circuit, a modulation signal module, an operational amplification circuit, a filter circuit, an MCU core main control module, a motor driving circuit and a power supply module. The specific implementation mode is as follows: the dart part starts counting after throwing, when the dart part passes through the fracturing piston 17 of one sliding sleeve part, the upper buckle 18 deforms once, a strain sensor arranged in the upper buckle 18 collects deformation signals and transmits the signals to a signal collecting circuit, a modulating signal module, an operational amplifying circuit and a filtering circuit are used for modulating, amplifying and filtering the signals, a main control chip is used for identifying the processed signals, if the processed signals are identified as effective deformation signals, the counting is carried out once, and so on, when the counting number reaches the previous sliding sleeve of the target sliding sleeve, the MCU core main control module drives a driving motor 9 through a motor driving circuit, the driving motor 9 drives a transmission shaft 5 to rotate through a driving gear 8, the transmission shaft 5 drives an activation sleeve 4 to move, and the dart part is activated, so that the dart part is only limited by the upper buckle 18 by moving a small distance, the time from an unactivated state to an activated state is only needed, the time is less than the time of the dart part moving from one sliding sleeve to the other sliding sleeve, and the accuracy of the fracturing stage number is ensured.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, but rather should be interpreted as including all modifications, equivalents, alternatives, etc. that are within the spirit and principles of the invention.
Claims (8)
1. Infinitely level intelligence sliding sleeve, its characterized in that: comprises a sliding sleeve part, a dart part and a control part;
the sliding sleeve part comprises an upper sleeve (14), a lower sleeve (20), a piston (17) and a nozzle plug (16);
the dart part comprises a ball seat chuck (1), a fracturing ball seat (2), a ball seat screw (3), an activating sleeve (4), a transmission shaft (5), a movable sealing ring (6), a buckle sealing ring (7), a driving gear (8), a driving motor (9), an inner pipe sealing ring (10), an inner pipe (11), a fracturing ball (12), a chuck screw (13), a supporting bearing (15), an upper buckle (18), sealing grease (19), a PCB (21), a lower buckle (22), a positioning pin (23) and a rubber cup (24);
the control section includes: the device comprises a signal detection unit, a signal acquisition circuit, a modulation signal module, an operational amplification circuit, a filter circuit, an MCU core main control module, a motor driving circuit and a power supply module, and is integrated on a PCB;
the upper sleeve (14) and the lower sleeve (20) of the sliding sleeve part are connected through threads, the nozzle plug (16) is arranged in a corresponding mounting hole of the upper sleeve (14), and the piston (17) is arranged inside the upper sleeve (14) and the lower sleeve (20); the ball seat chuck 1 is fixed with the fracturing ball seat (2) through four threaded holes (102) which are uniformly distributed in the circumferential direction, and limiting claws (101) arranged on the ball seat chuck are used for axially limiting the fracturing ball; the fracturing ball seat (2) is provided with an internal spline (201) which is matched with an external spline (111) on the inner pipe (11), the fracturing ball seat (2) is provided with a threaded hole (203) which is fixed with the inner pipe through a ball seat screw (3); a rectangular cavity (118) is formed in the inner tube (11) after being assembled with the lower buckle (22), and a PCB (21), a driving motor (9), a driving gear (8) and a power supply of the control system are arranged in the cavity; the positioning holes (115) are correspondingly arranged with the positioning holes on the lower buckle (22), and the lower buckle (22) and the inner tube (11) are completely fixed by the positioning pins (23); a rubber cup groove (117) on the inner tube (11) is provided with a rubber cup (24);
the infinite intelligent sliding sleeve comprises an unactivated state and an activated state, and the working process is as follows: when the infinite intelligent sliding sleeve is in an unactivated state, the piston (17) is fixed with the upper sleeve (14) through a pin, at the moment, the activating sleeve (4) in the dart part is in an initial position, when the dart passes through the piston (17), a trapezoid surface at the upper end of the upper buckle (18) is contacted with the piston (17), and the tip of the upper buckle (18) deforms and bends inwards under the action of pressure, so that the dart passes through the piston (17); when the infinite-level intelligent sliding sleeve is changed from an unactivated state to an activated state, the transmission shaft (5) is driven by the driving motor (9) to rotate, the activating sleeve (4) is driven to move downwards to limit the inward deformation of the upper buckle (18), at the moment, the dart passes through the piston, the tip of the upper buckle (18) cannot deform due to the limiting effect of the activating sleeve (4), the dart part cannot pass through the piston, so that a pressure is blocked, a pin between the piston (17) and the upper sleeve (14) is sheared under the pressure effect, the dart part drives the piston (17) to move downwards to expose the spout plug (16) in fracturing fluid, and the spout plug (16) is opened along with the pressure increase, so that the fracturing effect is realized.
2. The infinite intelligent slide sleeve according to claim 1, wherein: the upper sleeve (14) and the lower sleeve (20) are connected through threads, the piston (17) is fixed with the upper sleeve (14) through a pin, fracturing holes which are axially distributed are formed in the upper sleeve (14), and a nozzle plug (16) is arranged on each fracturing hole.
3. The infinite intelligent slide sleeve according to claim 1, wherein: one end of the upper buckle (18) is in a claw-shaped structure, a step surface is arranged at the top end of the outer side of the claw-shaped structure, four axial through holes are formed in the middle of the claw-shaped structure, the other end of the claw-shaped structure is in threaded connection with the lower buckle (22), and the lower buckle (22) is fixed with the inner tube (11) through a locating pin (23).
4. The infinite intelligent slide sleeve according to claim 1, wherein: ball seat chuck (1) and fracturing ball seat (2) fix through chuck screw (13), inner tube (11) and fracturing ball seat (2) be equipped with the spline groove of mutually supporting to carry out axial fixity through ball seat screw (3), inner tube (11) be equipped with two symmetric distribution's rectangle cavity and form sealed cavity with lower buckle (22), inner tube (11) top is equipped with the recess and joins in marriage and install with rubber cup (24).
5. The infinite intelligent slide sleeve according to claim 1, wherein: the activation sleeve (4) on be equipped with the through-hole corresponding with buckle (18), wherein two symmetrical distribution's through-hole is threaded hole and is connected with transmission shaft (5), transmission shaft (5) one end is connected with fracturing ball seat (2) through supporting bearing (15), the other end is connected with buckle (18) through supporting bearing (15), and installs driving gear (8) and the gear engagement on driving motor (9) on transmission shaft (5).
6. The infinite intelligent slide sleeve according to claim 1, wherein: the driving motor (9), the power supply and the PCB (21) are arranged in the sealing cavity, and the strain sensor is positioned at the tip end of the buckle and transmits the acquisition signal to the PCB through a channel inside the buckle.
7. The infinite intelligent slide sleeve according to claim 1, wherein: the signal detection unit can gather the deformation signal of buckle pointed end, the sliding sleeve is through once the piston, buckle takes place deformation once, control system gathers the model of once deformation and carries out once count, when the count number of times reaches the default, control system control driving motor activates the sliding sleeve.
8. The infinite intelligent slide sleeve according to claim 1, wherein: the dart has two states of activation and deactivation, wherein the unactivated state can freely pass through any sliding sleeve, and the activated state cannot pass through the sliding sleeve; the dart initial state is the unactivated state, and free through arbitrary sliding sleeve in the input process, when the preceding sliding sleeve of target position was passed through, the dart was never activated and was switched to the activated state, can not pass through when reaching appointed sliding sleeve, forms to hold down the pressure, when pressure reached a definite value, opened the spout stopper on the sleeve pipe, realized fracturing effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773755.XA CN115075793B (en) | 2022-07-01 | 2022-07-01 | Infinite intelligent sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773755.XA CN115075793B (en) | 2022-07-01 | 2022-07-01 | Infinite intelligent sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
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| CN115075793A CN115075793A (en) | 2022-09-20 |
| CN115075793B true CN115075793B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210773755.XA Active CN115075793B (en) | 2022-07-01 | 2022-07-01 | Infinite intelligent sliding sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115822521A (en) * | 2022-12-14 | 2023-03-21 | 西南石油大学 | Electromagnetic infinite intelligent sliding sleeve |
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| CN101899968A (en) * | 2008-12-15 | 2010-12-01 | 韦尔Spm公司 | Improved ball injector |
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| CN109267965B (en) * | 2017-07-17 | 2020-08-11 | 中石化石油工程技术服务有限公司 | Underground electric control sliding sleeve opening and closing tool |
| MX2020005300A (en) * | 2017-11-21 | 2020-10-19 | Sc Asset Corp | Collet with ball-actuated expandable seal and/or pressure augmented radially expandable splines. |
| CN208885268U (en) * | 2018-08-02 | 2019-05-21 | 西南石油大学 | Borehole wall water enchroachment (invasion) imitative experimental appliance under a kind of high temperature and pressure |
| CN108798597B (en) * | 2018-08-17 | 2024-04-19 | 东营市瑞丰石油技术发展有限责任公司 | Infinite-stage full-drift-diameter sliding sleeve |
| CA3073251A1 (en) * | 2019-02-21 | 2020-08-21 | Advanced Upstream Ltd. | Dart with changeable exterior profile |
| CN111088959B (en) * | 2019-07-10 | 2021-11-16 | 东北石油大学 | Countable underground full-bore fracturing sliding sleeve |
| CN112049605B (en) * | 2020-09-26 | 2022-11-01 | 东北石油大学 | Underground full-bore infinite-stage ball-throwing counting fracturing sliding sleeve |
| CN113279725B (en) * | 2021-06-04 | 2021-12-14 | 西南石油大学 | Infinitely variable intelligent rotary dart sliding sleeve |
| CN214365927U (en) * | 2021-08-30 | 2021-10-08 | 西安威尔格德能源技术有限公司 | Electrically controlled release nipple |
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2022
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