CN113914832A - Horizontal well full-drift-diameter infinite-stage fracturing tool - Google Patents
Horizontal well full-drift-diameter infinite-stage fracturing tool Download PDFInfo
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- CN113914832A CN113914832A CN202111529849.4A CN202111529849A CN113914832A CN 113914832 A CN113914832 A CN 113914832A CN 202111529849 A CN202111529849 A CN 202111529849A CN 113914832 A CN113914832 A CN 113914832A
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- sleeve
- sliding sleeve
- differential pressure
- central shaft
- fracturing tool
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 239000004576 sand Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005429 filling process Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 19
- 239000010410 layer Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
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
- E21B43/02—Subsoil filtering
- E21B43/04—Gravelling of wells
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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
- 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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- 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)
- Earth Drilling (AREA)
Abstract
The invention relates to the field of oil exploration and development, and provides a horizontal well full-bore infinite-stage fracturing tool, wherein one end of an upper joint is connected with a sleeve, the other end of the upper joint is connected with one end of a sliding sleeve, the other end of the sliding sleeve is connected with a connecting sleeve, the other end of a connecting sleeve A is connected with a connecting sleeve B, and the other end of the connecting sleeve B is connected with the sleeve; a mechanical sliding sleeve and a differential pressure sliding sleeve are fixed on the inner wall of the sliding sleeve, a differential pressure sleeve is arranged at the lower part of the differential pressure sliding sleeve, a ball seat is arranged on the inner wall of the differential pressure sleeve, the bottom of the ball seat is a central shaft, a connecting sleeve A is used for fixing the central shaft, a pressure transmission sleeve is fixed on the central shaft, and a spring is arranged at the bottom of the central shaft; the inner drift diameter of the invention is consistent with that of the casing pipe, and provides shaft conditions for running a large-outer-diameter tool; the fracturing tool is directly thrown without a filling service tool, and is opened layer by layer to operate, so that the construction time is saved, and the problem of pipe column sand blocking in the filling process is solved; the yield is improved; the differential pressure sliding sleeve is provided with a locking device and cannot be opened by mistake.
Description
Technical Field
The invention relates to the field of petroleum exploration and development, in particular to a full-drift-diameter infinite-grade fracturing tool for a horizontal well.
Background
At present, the fracturing process of a stepped sliding sleeve structure or the fracturing process of a once multi-layer filling fracturing sliding sleeve structure is generally adopted in China. The stepped sliding sleeve structure reduces the drift diameter in the sliding sleeve step by step, so that the lifting of the discharge capacity is limited; the primary multilayer filling fracturing sliding sleeve structure is limited by the influence of the length and the drift diameter of a service tool string, the interlayer spacing must be longer than the length of the tool string, the drift diameter is limited by the influence of a service tool flow channel, the drift diameter is smaller, the abrasion resistance is large, the action steps are more in the filling sand prevention process, the construction time is long, and the problem of sand blockage is easy to occur in the operation process.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provide a full-path infinite-stage fracturing tool for a horizontal well.
The new technical scheme of the invention is as follows: a casing is connected with one end of an external casing packer through threads, the other end of the external casing packer is connected with one end of the casing, the other end of the casing is connected with one end of a fracturing tool through threads, the other end of the fracturing tool is connected with the external casing packer through the threads of the casing, and the bottom of the casing is connected with a float shoe through threads; the fracturing tool comprises an upper joint, a lock ring A, a seal ring, a mechanical sliding sleeve, a differential pressure sliding sleeve, a shearing pin A, a differential pressure sleeve, a ball seat, a lock ring B, a shearing pin B, a connecting sleeve A, an anti-rotation pin, a pressure transmission sleeve, a rotating sleeve, a central shaft, a spring and a connecting sleeve B, wherein one end of the upper joint is connected with a sleeve through threads, the other end of the upper joint is connected with one end of the sliding sleeve through threads, the other end of the sliding sleeve is connected with one end of the connecting sleeve A through threads, the other end of the connecting sleeve A is connected with one end of the connecting sleeve B through threads, an inner step is arranged at the lower part of the connecting sleeve B, and the other end of the connecting sleeve B is connected with the sleeve through threads; the inner wall of the upper part of the sliding sleeve is fixed with a mechanical sliding sleeve through a lock ring A, a seal ring is arranged between the mechanical sliding sleeve and the sliding sleeve, the inner wall of the sliding sleeve and the bottom of the mechanical sliding sleeve are fixed with a differential pressure sliding sleeve through a shear pin A, the outer wall of the differential pressure sliding sleeve and the wall of the sliding sleeve are provided with a filling opening, the lower part of the filling opening and the inner wall of the sliding sleeve are provided with sliding sleeve steps, the sliding sleeve steps and the lower part of the differential pressure sliding sleeve are provided with differential pressure sleeves, the differential pressure sleeves are sleeved with differential pressure sleeve steps and matched with the sliding sleeve steps, the inner wall of the differential pressure sleeves is provided with a ball seat, the bottom of the ball seat is a central shaft, the bottom of the differential pressure sleeves is provided with a connecting sleeve A, the connecting sleeve A is fixed with a central shaft through a shear pin B, the upper part of the shear pin B and the inner wall of the connecting sleeve A is provided with a lock ring B, the lower part of the connecting sleeve A is provided with a key groove, and an anti-rotation pin is arranged in the key groove, the pressure transmission sleeve is fixed on the central shaft through the anti-rotation pin, sawteeth are arranged at the bottoms of the pressure transmission sleeve and the connecting sleeve A and matched with the sawteeth at the top of the rotary sleeve, a groove B is arranged at the bottom of the rotary sleeve and matched with a lug of the central shaft, the lug is arranged at the top of an outer step of the central shaft, a groove A is arranged at the upper part of the central shaft and matched with a locking ring B, and a spring is arranged at the bottom of the central shaft and at the top of an inner step of the connecting sleeve B.
The ball seat is a pawl ball seat.
The ball seat can move up and down on the inner wall of the pressure difference sleeve.
The filling opening is a plurality of.
The filling opening is circular.
The filling openings are uniformly distributed along the circumferential direction of the outer cylinder of the sliding sleeve.
The anti-rotation pin can move up and down in the key groove.
The contact part of the connecting sleeve A and the rotating sleeve is butted through a tooth shape.
The rotating sleeve rotates clockwise in the process of passing the ball.
The invention has the following beneficial effects: the invention is not influenced by the length of a filling fracturing service tool string, the inner drift diameter is consistent with that of the casing pipe, and the shaft condition is provided for the later-stage running of a large-outer-diameter tool; the soluble composite material ball is used, a filling service tool does not need to be put down in the filling process, the ball is directly thrown, the fracturing tools are opened layer by layer from bottom to top, the filling fracturing operation is carried out, the dissolving liquid is injected after the filling, the soluble ball is directly dissolved, the construction time is saved, and the problem of pipe column sand blocking in the filling process is solved; the method is not influenced by the drift diameter in the filling service tool, realizes the filling and fracturing operation with large discharge capacity, high sand ratio and high pressure, and improves the yield; the differential pressure sliding sleeve is provided with a locking device, and the differential pressure sliding sleeve cannot be opened by other tools by mistake after being closed.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the present invention mounted on a casing.
Fig. 3 is a schematic structural view of the rotary sleeve.
Wherein: 1. casing, 2, an external casing packer, 3, a fracturing tool, 301, an upper joint, 302, a locking ring A, 303, a sealing ring, 304, a mechanical sliding sleeve, 305, a sliding sleeve, 305-1, a filling port, 305-2, a sliding sleeve step, 306, a differential pressure sliding sleeve, 307, a shearing pin A, 308, a differential pressure sleeve, 308-1, a differential pressure sleeve step, 309, a ball seat, 310, a locking ring B, 311, a shearing pin B, 312, a connecting sleeve A, 312-1, a key groove, 313, an anti-rotation pin, 314, a pressure transmission sleeve, 315, a rotating sleeve, 315-1, a groove B, 316, a central shaft, 316-1, a groove A, 316-2, an external step, 317, a spring, 318, a connecting sleeve B, 318-1, an internal step, 4, an open hole well wall, 5 and a float shoe.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
A casing 1 is connected with one end of an external casing packer 2 through threads, the other end of the external casing packer 2 is connected with one end of the casing 1, the other end of the casing 1 is connected with one end of a fracturing tool 3 through threads, the other end of the fracturing tool 3 is connected with the external casing packer 2 through the casing 1 in a threaded mode, and the bottom of the casing 1 is connected with a floating shoe 5 in a threaded mode; the fracturing tool 3 comprises an upper connector 301, a locking ring A302, a sealing ring 303, a mechanical sliding sleeve 304, a sliding sleeve 305, a differential pressure sliding sleeve 306, a shearing pin A307, a differential pressure sleeve 308, a ball seat 309, a locking ring B310, a shearing pin B311, a connecting sleeve A312, an anti-rotation pin 313, a pressure transfer sleeve 314, a rotating sleeve 315, a central shaft 316, a spring 317 and a connecting sleeve B318, wherein one end of the upper connector 301 is connected with a casing 1 through threads, the other end of the upper connector 301 is connected with one end of the sliding sleeve 305 through threads, the other end of the sliding sleeve 305 is connected with one end of the connecting sleeve A312 through threads, the other end of the connecting sleeve A312 is connected with one end of the connecting sleeve B318 through threads, an inner step 318-1 is arranged at the lower part of the connecting sleeve B318, and the other end of the connecting sleeve B318 is connected with the casing 1 through threads; a mechanical sliding sleeve 304 is fixed on the inner wall of the upper part of the sliding sleeve 305 through a locking ring A302, a sealing ring 303 is arranged between the mechanical sliding sleeve 304 and the sliding sleeve 305, a differential pressure sliding sleeve 306 is fixed on the inner wall of the sliding sleeve 305 and the bottom of the mechanical sliding sleeve 304 through a shearing pin A307, a filling port 305-1 is arranged on the outer wall of the differential pressure sliding sleeve 306 and the wall of the sliding sleeve 305, a sliding sleeve step 305-2 is arranged on the lower part of the filling port 305-1 and the inner wall of the sliding sleeve 305, a differential pressure sleeve 308 is arranged on the sliding sleeve step 305-2 and the lower part of the differential pressure sliding sleeve 306, the differential pressure sleeve 308 is provided with a differential pressure sleeve step 308-1, the differential pressure sleeve step 308-1 is matched with the sliding sleeve step 305-2, a ball seat 309 is arranged on the inner wall of the differential pressure sleeve 308, the bottom of the ball seat 309 is a central shaft 316, a connecting sleeve 312 is arranged at the bottom of the differential pressure sleeve 308, and a central shaft 316 is fixed on the connecting sleeve A312 through a shearing pin B311, a lock ring B310 is arranged at the upper part of the shearing pin B311 and on the inner wall of the connecting sleeve A312, a key groove 312-1 is arranged at the lower part of the connecting sleeve A312, an anti-rotation pin 313 is arranged in the key groove 312-1, a pressure transmission sleeve 314 is fixed on a central shaft 316 through the anti-rotation pin 313, sawteeth are arranged at the bottoms of the pressure transmission sleeve 314 and the connecting sleeve A312 and matched with the sawteeth at the top of a rotating sleeve 315, a groove B315-1 is arranged at the bottom of the rotating sleeve 315, the groove B315-1 is matched with a convex block of the central shaft 316, the convex block is arranged at the top of an outer step 316-2 of the central shaft 316, a groove A316-1 is arranged at the upper part of the central shaft 316, the groove A316-1 is matched with the lock ring B310, and a spring 317 is arranged at the bottom of the central shaft 316 and at the top of the inner step 318-1 of the connecting sleeve B318.
The ball seat 309 is a detent ball seat.
The ball seat 309 is movable up and down the inner wall of the pressure differential housing 308.
The filling port 305-1 is plural.
The filling port 305-1 is circular.
The filling ports 305-1 are uniformly distributed along the circumferential direction of the outer cylinder of the sliding sleeve 305.
The rotation preventing pins 313 are movable up and down in the key slots 312-1.
The contact part of the connecting sleeve A312 and the rotating sleeve 315 is butted through a tooth shape.
The rotating sleeve 315 rotates clockwise during the process of passing the ball.
The utility model provides a whole unlimited level fracturing tool of latus rectum of horizontal well, a plurality of external packer 2, fracturing tool 3 and bottom float shoe 5 are connected with sleeve pipe 1 in proper order, and the number is gone into according to the segmentation condition to fracturing tool 3 and external packer 2, meets the longer interval of layer interval, can go into a plurality of fracturing tool 3 down.
Prior to production, the well is run into the open hole wall 4 with pellets of composite material in order to block the casing 1 by blocking the formation sand from entering the casing 1.
The running sequence of the full-bore infinite fracturing string takes three layers as an example, and the three layers are from top to bottom: the method comprises the following steps of 1 casing on the upper portion, 2 external casing packer, 3 fracturing tool, 1 casing, 3 fracturing tool, 2 external casing packer, 3 fracturing tool, 1 casing and 5 floating shoe on the bottom portion, and after the tool is lowered to a preset depth, measures such as well cementation are completed.
Firstly setting an external pipe packer 2: in the implementation process, a soluble composite material ball is put into the casing 1 and reaches the ratchet ball seat 309 of the fracturing tool 3 in the first layer, and the ratchet ball seat 309 and the central shaft 316 are pushed to move downwards because the inner diameter of the bottom of the ball seat 309 is smaller than the outer diameter of the soluble composite material ball, and the central shaft 316 is fixed by the shearing pin B311 and cannot move, so that the pressure of the pipe column is increased, at the moment, the external pipe packer 2 in the first layer expands outwards to contact the wall of the well, and the external pipe packer 2 in the first layer is sealed; the pressure in the pipe string continues to rise, the shear pin B311 is sheared off, the detent ball seat 309 pushes the central shaft 316 and the pressure transmitting sleeve 314 to move downwards, the pressure transmitting sleeve 314 pushes the rotating sleeve 315 to rotate by a saw tooth, the detent ball seat 309 reaches the bottom large space of the pressure difference sleeve 308 to release a soluble composite ball, the soluble composite ball continues to move downwards, and the central shaft 316 drives the rotating sleeve 315, the pressure transmitting sleeve 314 and the detent ball seat 309 to return to the initial position through the action of the spring force. And by analogy, the soluble composite ball sequentially seals the external pipe packers 2 of the second layer and the third layer from top to bottom through the fracturing tool 3, and the rotary sleeve 315 of the fracturing tool 3 rotates for one sawtooth through one soluble composite ball.
After the fracturing tool 3 at the lowest layer passes through the soluble composite ball, the soluble composite ball pushes the detent ball seat 309 and the central shaft 316 to move downwards and cut off the shear pin B311, the central shaft 316 drives the pressure transmission sleeve 314 to move downwards, the pressure transmission sleeve 314 pushes the rotary sleeve 315 to rotate by a sawtooth, a convex block of an outer step 316-2 of the central shaft 316 is matched with a groove B315-1 of the rotary sleeve 315 at the moment, the distance between the central shaft 316 and the rotary sleeve 315 is reduced, the central shaft 316 moves upwards due to the acting force of the spring 317, the locking ring B310 is matched with a groove A316-1 of the central shaft 316, the central shaft 316 is locked, the central shaft 316 pushes the ball seat 309 to move upwards, the top of the ball seat 309 abuts against the lower part of the step 308-1 of the pressure difference sleeve, and at the moment, the soluble composite ball can not pass through the detent ball seat 309.
After the setting of the external packer 2 of all infinite fracturing strings is finished, putting in soluble composite balls again, enabling the soluble composite balls to sequentially pass through the fracturing tools 3 from top to bottom, reaching the position of the pawl ball seat 309 of the fracturing tool 3 at the lowest layer, continuing to pressurize, enabling the soluble composite balls not to pass through the pawl ball seat 309 again, increasing the internal pressure, continuing to pressurize, moving the shear pin A307 by the differential pressure sliding sleeve 306 to be cut off, opening the filling port 305-1 at the moment, and starting fracturing and filling operation.
When the fracturing and filling operation of the lowest layer is completed, a soluble composite ball is thrown again, the soluble composite ball pushes the ball seat 309, the central shaft 316 and the pressure transmission sleeve 314 to move downwards, the pressure transmission sleeve 314 pushes the rotating sleeve 315 to rotate by a sawtooth, at the moment, a convex block of the central shaft 316 of the second layer is matched with a groove B315-1 of the rotating sleeve 315, the spring 317 pushes the central shaft 316 to move upwards, the central shaft 316 is locked by the locking ring B310, when the soluble composite ball is thrown again, the soluble composite ball does not move downwards and can only be accumulated upwards at the ball seat 309 until the pressure in the pipe string rises to cut a shearing pin A307 of the differential pressure sliding sleeve 306 of the second fracturing tool 3, at the moment, the filling port 305-1 of the second fracturing tool 3 is opened, and the fracturing and filling operation is carried out.
And repeating the steps, and opening the differential pressure sliding sleeve 306 from bottom to top to perform fracturing filling operation on the oil layer. And injecting a dissolving solution after the fracturing operation is finished, and dissolving the soluble composite material balls.
After the fracturing filling operation is completely finished, a switching tool is put in, the filling port 305-1 at any position can be closed, single-layer production is carried out, and the productivity of the fracturing filling operation is tested; and all the levels can be opened to test the productivity of the level, and data support is provided for later production.
Claims (9)
1. A casing is connected with one end of an external casing packer through threads, the other end of the external casing packer is connected with one end of the casing, the other end of the casing is connected with one end of a fracturing tool through threads, the other end of the fracturing tool is connected with the external casing packer through the threads of the casing, and the bottom of the casing is connected with a float shoe through threads; the method is characterized in that: the fracturing tool comprises an upper joint, a lock ring A, a seal ring, a mechanical sliding sleeve, a differential pressure sliding sleeve, a shearing pin A, a differential pressure sleeve, a ball seat, a lock ring B, a shearing pin B, a connecting sleeve A, an anti-rotation pin, a pressure transmission sleeve, a rotating sleeve, a central shaft, a spring and a connecting sleeve B, wherein one end of the upper joint is connected with a sleeve through threads, the other end of the upper joint is connected with one end of the sliding sleeve through threads, the other end of the sliding sleeve is connected with one end of the connecting sleeve A through threads, the other end of the connecting sleeve A is connected with one end of the connecting sleeve B through threads, an inner step is arranged at the lower part of the connecting sleeve B, and the other end of the connecting sleeve B is connected with the sleeve through threads; the inner wall of the upper part of the sliding sleeve is fixed with a mechanical sliding sleeve through a lock ring A, a seal ring is arranged between the mechanical sliding sleeve and the sliding sleeve, the inner wall of the sliding sleeve and the bottom of the mechanical sliding sleeve are fixed with a differential pressure sliding sleeve through a shear pin A, the outer wall of the differential pressure sliding sleeve and the wall of the sliding sleeve are provided with a filling opening, the lower part of the filling opening and the inner wall of the sliding sleeve are provided with sliding sleeve steps, the sliding sleeve steps and the lower part of the differential pressure sliding sleeve are provided with differential pressure sleeves, the differential pressure sleeves are sleeved with differential pressure sleeve steps and matched with the sliding sleeve steps, the inner wall of the differential pressure sleeves is provided with a ball seat, the bottom of the ball seat is a central shaft, the bottom of the differential pressure sleeves is provided with a connecting sleeve A, the connecting sleeve A is fixed with a central shaft through a shear pin B, the upper part of the shear pin B and the inner wall of the connecting sleeve A is provided with a lock ring B, the lower part of the connecting sleeve A is provided with a key groove, and an anti-rotation pin is arranged in the key groove, the pressure transmission sleeve is fixed on the central shaft through the anti-rotation pin, sawteeth are arranged at the bottoms of the pressure transmission sleeve and the connecting sleeve A and matched with the sawteeth at the top of the rotary sleeve, a groove B is arranged at the bottom of the rotary sleeve and matched with a lug of the central shaft, the lug is arranged at the top of an outer step of the central shaft, a groove A is arranged at the upper part of the central shaft and matched with a locking ring B, and a spring is arranged at the bottom of the central shaft and at the top of an inner step of the connecting sleeve B.
2. The horizontal well full-bore infinite-stage fracturing tool according to claim 1, characterized in that: the ball seat is a pawl ball seat.
3. The horizontal well full-bore infinite stage fracturing tool according to claim 1 or 2, wherein: the ball seat can move up and down on the inner wall of the pressure difference sleeve.
4. The horizontal well full-bore infinite-stage fracturing tool according to claim 1, characterized in that: the filling opening is a plurality of.
5. The horizontal well full-bore infinite stage fracturing tool according to claim 1 or 4, wherein: the filling opening is circular.
6. The horizontal well full-bore infinite stage fracturing tool according to claim 5, wherein: the filling openings are uniformly distributed along the circumferential direction of the outer cylinder of the sliding sleeve.
7. The horizontal well full-bore infinite-stage fracturing tool according to claim 1, characterized in that: the anti-rotation pin can move up and down in the key groove.
8. The horizontal well full-bore infinite-stage fracturing tool according to claim 1, characterized in that: the contact part of the connecting sleeve A and the rotating sleeve is butted through a tooth shape.
9. The horizontal well full-bore infinite-stage fracturing tool according to claim 1, characterized in that: the rotating sleeve rotates clockwise in the process of passing the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529849.4A CN113914832B (en) | 2021-12-15 | 2021-12-15 | Horizontal well full-drift-diameter infinite-stage fracturing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529849.4A CN113914832B (en) | 2021-12-15 | 2021-12-15 | Horizontal well full-drift-diameter infinite-stage fracturing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113914832A true CN113914832A (en) | 2022-01-11 |
| CN113914832B CN113914832B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111529849.4A Active CN113914832B (en) | 2021-12-15 | 2021-12-15 | Horizontal well full-drift-diameter infinite-stage fracturing tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508327A (en) * | 2022-04-20 | 2022-05-17 | 山东普瑞思德石油技术有限公司 | Sieve tube with sliding sleeve suitable for bottom fracturing filling process |
| CN116084905A (en) * | 2023-03-13 | 2023-05-09 | 大庆市璞庆钻采设备制造有限公司 | Sand blaster for oilfield stratum fracturing |
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| CN103061733A (en) * | 2013-01-14 | 2013-04-24 | 西南石油大学 | Sleeve valve type fracturing production-increasing tool |
| CN106907120A (en) * | 2017-02-10 | 2017-06-30 | 中国海洋石油总公司 | Slip out of the hand instrument and its construction method are sent into for SIMULATION STUDY OF GRAVEL PACKING IN HORIZONTAL WELL sand control pipe |
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| CN114508327A (en) * | 2022-04-20 | 2022-05-17 | 山东普瑞思德石油技术有限公司 | Sieve tube with sliding sleeve suitable for bottom fracturing filling process |
| CN114508327B (en) * | 2022-04-20 | 2022-06-24 | 山东普瑞思德石油技术有限公司 | Sieve tube with sliding sleeve suitable for bottom fracturing filling process |
| CN116084905A (en) * | 2023-03-13 | 2023-05-09 | 大庆市璞庆钻采设备制造有限公司 | Sand blaster for oilfield stratum fracturing |
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