CN111877999B - Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated pipe column and construction method - Google Patents
Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated pipe column and construction method Download PDFInfo
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- CN111877999B CN111877999B CN202010856568.9A CN202010856568A CN111877999B CN 111877999 B CN111877999 B CN 111877999B CN 202010856568 A CN202010856568 A CN 202010856568A CN 111877999 B CN111877999 B CN 111877999B
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- 238000005488 sandblasting Methods 0.000 title claims abstract description 63
- 238000010276 construction Methods 0.000 title abstract description 25
- 238000010008 shearing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
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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
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column and a construction method. The invention integrates the sand blasting perforation process of the continuous oil pipe and the staged fracturing process of the setting bridge plug of the continuous oil pipe, and reduces the influence of bottom pollution on fracturing by adopting hydraulic sand blasting perforation.
Description
Technical Field
The invention belongs to the technical field of petroleum and natural gas, and particularly relates to a coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column and a construction method.
Background
At present, when the shale gas horizontal well is used for bridge plug and perforation operation, a method of hydraulically pumping the bridge plug and the perforation gun is generally used. The hydraulic pumping bridge plug process has the characteristics of better pressure resistance, reliable packing, capability of realizing wireless-stage casing fracturing and the like. The method of hydraulic pumping bridge plug and perforating gun is to use cable to drop the string of pipe string with bridge plug and perforation, then to pump liquid into the well, the liquid flow will push the bridge plug and the tool connected with the bridge plug to the preset position. Then the cable is electrified to start the bridge plug setting tool, and the bridge plug is set and then released. The pipe string is dragged to a preset position, so that the perforating gun is aligned to a target position, and then the perforating gun is electrified and ignited to provide a channel for fracturing of the oil-gas well. And then the hole gun and the bridge plug are started to be driven into the tool, and the first section of fracturing is started. After the first section of fracturing is finished, sequentially putting in a bridge plug, perforating and fracturing according to the requirement of the number of putting-in sections by the same method. After the staged fracturing is finished, an oil pipe or a coiled tubing is adopted to put into a pipe column and all bridge plugs are removed by drilling, and then trial production or production is carried out. The method of adopting the cable to put into the perforating gun needs to use a cable car to put in the bridge plug. The completion of bridge plug setting and casing perforation needs a special perforating team and matched equipment. Downhole kits require additional tool providers to provide. The fracturing construction pressure is abnormally high due to shaft pollution, high fracture pressure and the like in the front sections of the shale gas horizontal well, and the problem of difficult construction caused by the factors is solved.
Disclosure of Invention
The invention aims to solve the technical problems and provides a coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column and a construction method.
The technical scheme adopted by the invention for solving the technical problems is as follows: the coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column is characterized by comprising a coiled tubing, a coiled tubing connector, a safety joint, a centralizer, a hydraulic sand blasting perforation tool, a bridge plug hydraulic setting tool and a tubular tool string which are sequentially connected, wherein the upper end of the coiled tubing is connected with a coiled tubing injection head, and the lower end of the coiled tubing is connected with the coiled tubing connector.
According to the scheme, the coiled tubing connector comprises a sleeve, a built-in slip and a connector joint, wherein the built-in slip is arranged in the sleeve, the upper end of the sleeve is connected with the coiled tubing through the built-in slip, and the lower end of the sleeve is connected with the upper end of the connector joint.
According to the scheme, the safety joint is a releasing joint, the upper end of the releasing joint is connected with the lower end of a connector joint, the lower end of the releasing joint is connected with the top of the centralizer through a conversion joint, a sliding sleeve core is arranged in the releasing joint, and a shearing pin is arranged on the sliding sleeve core and fixed in the releasing joint.
According to the scheme, the hydraulic sand blasting perforation tool comprises an upper connecting seat, a lower connecting seat, a body, a nozzle, a gland and a hydraulic sand blasting core, wherein the upper connecting seat is connected with the centralizer, the nozzle is fixed on the body through the nozzle pressing cap, the outside of the nozzle is sealed through the gland, and the hydraulic sand blasting core is fixed inside the body through a shearing pin.
According to the scheme, the bridge plug hydraulic setting tool comprises an upper connector, a bridge plug hydraulic setting core, an upper piston, a lower piston, an upper body, a middle body, a lower body, a piston adapter, a piston rod, a middle body adapter, a setting pull rod, a pull rod adapter and a lower pull rod, wherein the top end of the upper connector is connected with a lower connecting seat of the hydraulic sand blasting perforation tool, the bottom end of the upper connector is connected with the upper body, the bridge plug hydraulic setting core is fixed inside the upper connector through a shearing pin, the upper piston is arranged inside the upper body and is connected with the lower piston through the piston adapter, the lower piston is arranged inside the middle body, the top end of the middle body is connected with the piston adapter, the bottom end of the lower piston is connected with the piston rod, the bottom end of the piston rod is provided with a piston rod limiting block and a pushing cylinder connector, the top end of the setting pull rod is connected with a piston rod limiting block, the bottom end of the middle body is connected with the top end of the setting pull rod through the middle body adapter, the lower body is connected with the pushing cylinder connector through the pull rod adapter.
According to the scheme, the gland is made of an erosion-resistant high-strength alloy steel plate.
According to the scheme, the bridge plug hydraulic setting core and the upper joint are correspondingly provided with the pressure balance holes.
The construction method of the coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column is characterized by comprising the following steps:
s1) installing coiled tubing wellhead equipment and testing pressure, wherein the coiled tubing wellhead equipment comprises a coiled tubing injection head, a blowout preventer and a blowout preventer;
s2) connecting a coiled tubing sand blasting, perforating and drifting integrated tool, wherein the tool comprises a coiled tubing, a coiled tubing connector, a release connector, a hydraulic sand blasting and perforating tool and a drifting tool which are sequentially connected, and after the pressure test is qualified, the tool string is slowly lifted into a blowout prevention pipe; after the pressure of the first valve of the well mouth is tested, the gas production tree above the first valve of the well mouth is dismantled, the coiled tubing equipment is installed to the well mouth, the first valve of the well mouth is opened, and the coiled tubing is lowered to put the tool string into the well; carrying out well dredging and well washing according to requirements, after the construction is finished, positioning in a mode of probing the bottom of the artificial well, lifting the hydraulic sand blasting perforation tool to a preset perforation position, pitching to suppress pressure, carrying out hydraulic sand blasting perforation operation according to the design, lifting the pipe column to lift out the coiled tubing and the downhole tool after the perforation is finished, and carrying out fracturing construction after the fracturing construction design is installed;
s3) after the first-section fracturing construction is finished, connecting a coiled tubing sand-blasting perforation setting bridge plug integrated tool, wherein the tool comprises a coiled tubing, a coiled tubing connector, a releasing connector, a centralizer, a hydraulic sand-blasting perforation tool and a bridge plug hydraulic setting tool which are sequentially connected, and slowly lifting a tool string into a blowout prevention pipe after the test pressure is qualified; installing coiled tubing equipment to a wellhead, opening a first valve of the wellhead, and lowering the coiled tubing to lower the tool string into the well;
s4) putting the continuous oil pipe down to the bottom of the artificial well, performing depth correction in a marking mode, lifting the continuous oil pipe to a bridge plug setting position, pitching, holding back the setting bridge plug after the ball is in place, lifting the pipe column after the pressure test is qualified, enabling the hydraulic sand blasting perforation tool to reach the perforation position, pitching, holding back the pressure, opening a sliding sleeve core of the hydraulic sand blasting perforation tool, and performing sand blasting perforation according to a preset pumping program;
s5) after the perforation is finished, lifting the pipe column to lift out the coiled tubing and the well entering tool for fracturing;
s6) until the corresponding horizon is finished according to the required measures.
The invention has the beneficial effects that: the string integrates a coiled tubing sand blasting and perforating process and a coiled tubing setting and bridge plug staged fracturing process, so that gunpowder-free construction is realized, the perforation aperture and area are increased, the influence of bottom pollution on fracturing is reduced, the stratum fracture pressure is reduced, and the construction pressure and the construction cost of a shale gas deep well horizontal well can be effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in figure 1, the coiled tubing hydraulic sand blasting, perforating, setting and sealing integrated pipe column comprises a coiled tubing 1, a coiled tubing connector, a safety joint, a centralizer, a hydraulic sand blasting and perforating tool, a bridge plug hydraulic setting tool and a tubular tool string which are sequentially connected, wherein the upper end of the coiled tubing is connected with a coiled tubing injection head, and the lower end of the coiled tubing is connected with the coiled tubing connector. The centralizer can ensure that the underground operation pipe column is always in a position parallel to the shaft, and the pipe column cannot greatly jump in the radial direction and the axial direction when the coiled tubing is subjected to sand blasting perforation.
The coiled tubing connector comprises a sleeve 2, a built-in slip 3 and a connector joint 4, wherein the built-in slip is arranged in the sleeve, the upper end of the sleeve is connected with the coiled tubing through the built-in slip, and the lower end of the sleeve is connected with the upper end of the connector joint.
The safety joint is a releasing joint 5, the upper end of the releasing joint is connected with the lower end of a connector joint, the lower end of the releasing joint is connected with the top of a centralizer 7 through an adapter 6, a sliding sleeve core 8 is arranged in the releasing joint, and a shearing pin 9 is arranged on the sliding sleeve core and fixed in the releasing joint through the shearing pin. When abnormal conditions occur and the tubular column needs to be released, a corresponding steel ball is put into the coiled tubing, the pressure build-up inside the coiled tubing cuts off the pin, the sliding sleeve core moves downwards, the elastic pawl is recycled, and the tubular column is lifted upwards to realize releasing.
The hydraulic sand blasting perforation tool comprises an upper connecting seat 10, a lower connecting seat 11, a body 12, a nozzle 13, a gland 14 and a hydraulic sand blasting core 15, wherein the upper connecting seat is connected with a centralizer, the nozzle is fixed on the body through a nozzle pressing cap, the outside of the nozzle is sealed through the gland, and the hydraulic sand blasting core is fixed inside the body through a shearing pin. When sand blasting perforation is not needed, the nozzle flow channel is isolated, when sand blasting perforation is needed, a ball is thrown and pressed, the pin is cut off, and the hydraulic sand blasting core moves downwards to the lower end core bearing position, so that perforation operation can be carried out.
The bridge plug hydraulic setting tool comprises an upper connector 16, a bridge plug hydraulic setting core 17, an upper piston 18, a lower piston 19, an upper body 20, a middle body 21, a lower body 22, a piston conversion joint 23, a piston rod 24, a middle body conversion joint 25, a setting pull rod 26, a pull rod conversion joint 27 and a lower pull rod 28, wherein the top end of the upper connector is connected with a lower connecting seat of the hydraulic sand blasting perforation tool, the bottom end of the upper connector is connected with the upper body, the bridge plug hydraulic setting core is fixed inside the upper connector through a shearing pin, the upper piston is arranged inside the upper body and connected with the lower piston through the piston conversion joint, the lower piston is arranged inside the middle body, the top end of the middle body is connected with the piston conversion joint, the bottom end of the lower piston is connected with the piston conversion joint, the bottom end of the piston rod is provided with a piston rod limiting block 29 and a push cylinder joint 30, the top end of the setting pull rod is connected with a piston rod limiting block, the bottom end of the middle body is connected with the top end of the setting pull rod through the middle body conversion joint, the lower body is connected with the push cylinder joint, and the bottom end of the setting pull rod is connected with the lower pull rod through the pull rod conversion joint. When the bridge plug hydraulic setting core is at a preset position and is set, a ball is thrown to suppress pressure, the pin is cut off, the bridge plug hydraulic setting core moves downwards to close an oil sleeve annulus, the pushing cylinder pushes the bridge plug to set, and the joint is released after the bridge plug is set in place.
The gland is made of high-strength alloy steel plate which is resistant to erosion.
The bridge plug hydraulic setting core and the upper joint are correspondingly provided with pressure balance holes 31.
The construction method of the coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column is characterized by comprising the following steps of:
s1) installing coiled tubing wellhead equipment and testing pressure, wherein the coiled tubing wellhead equipment comprises a coiled tubing injection head, a blowout preventer and a blowout preventer;
s2) connecting a coiled tubing sand blasting, perforating and drifting integrated tool, wherein the tool comprises a coiled tubing, a coiled tubing connector, a release connector, a hydraulic sand blasting and perforating tool and a drifting tool which are sequentially connected, and after the pressure test is qualified, the tool string is slowly lifted into a blowout prevention pipe; after the pressure of the first valve of the well mouth is tested, the gas production tree above the first valve of the well mouth is dismantled, the coiled tubing equipment is installed to the well mouth, the first valve of the well mouth is opened, and the coiled tubing is lowered to put the tool string into the well; carrying out well dredging and well washing according to requirements, after the construction is finished, positioning in a mode of probing the bottom of the artificial well, lifting the hydraulic sand-blasting perforation tool to a preset perforation position, throwing balls to suppress pressure, carrying out hydraulic sand-blasting perforation operation according to the design, lifting a pipe column to lift a continuous oil pipe and a downhole tool after the perforation is finished, and carrying out fracturing construction in the installation of fracturing construction design;
s3) after the first-stage fracturing construction is finished, connecting a coiled tubing sand blasting perforation setting bridge plug integrated tool, wherein the tool comprises a coiled tubing, a coiled tubing connector, a releasing connector, a centralizer, a hydraulic sand blasting perforation tool and a bridge plug hydraulic setting tool which are sequentially connected, and slowly lifting the tool string into a blowout prevention pipe after the pressure test is qualified; installing coiled tubing equipment to a wellhead, opening a first valve of the wellhead, and lowering the coiled tubing to lower the tool string into the well;
s4) putting the continuous oil pipe down to the bottom of the artificial well, performing depth correction in a marking mode, lifting the continuous oil pipe to a bridge plug setting position, pitching, holding back the setting bridge plug after the ball is in place, lifting the pipe column after the pressure test is qualified, enabling the hydraulic sand blasting perforation tool to reach the perforation position, pitching, holding back the pressure, opening a sliding sleeve core of the hydraulic sand blasting perforation tool, and performing sand blasting perforation according to a preset pumping program;
s5) after the perforation is finished, lifting the pipe column to lift out the coiled tubing and the well entering tool for fracturing;
s6) until the corresponding horizon is finished according to the required measures.
The working principle of the hydraulic sand blasting perforation tool is as follows: when the sand blasting perforation is not needed, the nozzle flow channel is isolated, when the sand blasting perforation is needed, the ball is thrown and pressed, the pin is cut off, and the sliding sleeve core moves downwards to the lower end core bearing position, so that the perforation operation can be carried out.
The working principle of the bridge plug hydraulic setting tool is as follows: when the bridge plug is in place, a ball is thrown to suppress pressure, the pin is cut off, the sliding sleeve core moves downwards, the oil sleeve annulus is closed, the pushing cylinder pushes the bridge plug to be in place, and the releasing joint is released after the bridge plug is in place.
The construction method of the coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column comprises the following steps:
s1) installing continuous oil pipe wellhead equipment and testing pressure, wherein the continuous oil pipe wellhead equipment comprises a continuous oil pipe injection head, a blowout preventer and a blowout preventer;
s2) connecting a coiled tubing sand blasting, perforating and drifting integrated tool, which comprises a coiled tubing, a coiled tubing connector, a releasing connector, a hydraulic sand blasting and perforating tool and a drifting tool which are connected in sequence, and slowly lifting a tool string into a blowout prevention pipe after the pressure test is qualified; after the pressure of the first valve of the well mouth is tested, the gas production tree above the first valve of the well mouth is dismantled, the coiled tubing equipment is installed to the well mouth, the first valve of the well mouth is opened, and the coiled tubing is lowered to put the tool string into the well; carrying out well dredging and well washing according to requirements, after the construction is finished, positioning in a mode of probing the bottom of the artificial well, lifting the hydraulic sand-blasting perforation tool to a preset perforation position, throwing balls to suppress pressure, carrying out hydraulic sand-blasting perforation operation according to the design, lifting a pipe column to lift a continuous oil pipe and a downhole tool after the perforation is finished, and carrying out fracturing construction in the installation of fracturing construction design;
s3) after the first-stage fracturing construction is finished, connecting a coiled tubing sand blasting perforation setting bridge plug integrated tool, wherein the tool comprises a coiled tubing, a coiled tubing connector, a releasing connector, a centralizer, a hydraulic sand blasting perforation tool and a bridge plug hydraulic setting tool which are sequentially connected, and slowly lifting the tool string into a blowout prevention pipe after the pressure test is qualified; installing coiled tubing equipment to a wellhead, opening a first valve of the wellhead, and lowering the coiled tubing to lower the tool string into the well;
s4) putting the continuous oil pipe down to the bottom of the artificial well, performing depth correction in a marking mode, lifting the continuous oil pipe to a bridge plug setting position, pitching, holding back the setting bridge plug after the ball is in place, lifting the pipe column after the pressure test is qualified, enabling the hydraulic sand blasting perforation tool to reach the perforation position, pitching, holding back the pressure, opening a sliding sleeve core of the hydraulic sand blasting perforation tool, and performing sand blasting perforation according to a preset pumping program;
s5) after the perforation is finished, lifting the pipe column to lift the coiled tubing and the well entering tool for fracturing;
s6) until the corresponding horizon is finished according to the required measures.
Claims (2)
1. The coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column is characterized by comprising a coiled tubing, a coiled tubing connector, a safety joint, a centralizer, a hydraulic sand blasting perforation tool and a bridge plug hydraulic setting tool which are sequentially connected to form a tubular tool string, wherein the upper end of the coiled tubing is connected with a coiled tubing injection head, and the lower end of the coiled tubing is connected with the coiled tubing connector; the coiled tubing connector comprises a sleeve, a built-in slip and a connector joint, wherein the built-in slip is arranged in the sleeve, the upper end of the sleeve is connected with the coiled tubing through the built-in slip, and the lower end of the sleeve is connected with the upper end of the connector joint; the safety joint is a releasing joint, the upper end of the releasing joint is connected with the lower end of the connector joint, the lower end of the releasing joint is connected with the top of the centralizer through a conversion joint, a sliding sleeve core is arranged in the releasing joint, and a shearing pin is arranged on the sliding sleeve core and fixed in the releasing joint through the shearing pin; the hydraulic sand blasting perforation tool comprises an upper connecting seat, a lower connecting seat, a body, a nozzle, a gland and a hydraulic sand blasting core, wherein the upper connecting seat is connected with the centralizer, the nozzle is fixed on the body through a nozzle pressing cap, the outside of the nozzle is sealed through the gland, and the hydraulic sand blasting core is fixed inside the body through a shearing pin; the bridge plug hydraulic setting tool comprises an upper connector, a bridge plug hydraulic setting core, an upper piston, a lower piston, an upper body, a middle body, a lower body, a piston adapter, a piston rod, a middle body adapter, a setting pull rod, a pull rod adapter and a lower pull rod, wherein the top end of the upper connector is connected with the lower connecting seat of the hydraulic sand blasting perforation tool, the bottom end of the upper connector is connected with the upper body, the bridge plug hydraulic setting core is fixed inside the upper connector through a shearing pin, the upper piston is arranged inside the upper body and is connected with the lower piston through the piston adapter, the lower piston is arranged inside the middle body, the top end of the middle body is connected with the piston adapter, the bottom end of the lower piston is connected with the piston rod, the bottom end of the piston rod is provided with a piston rod limiting block and a push cylinder connector, the top end of the setting pull rod is connected with the piston rod limiting block, the bottom end of the middle body is connected with the top end of the setting pull rod through the middle body adapter, the lower body is connected with the push cylinder connector, and the bottom end of the setting pull rod is connected with the lower pull rod through the pull rod adapter; and the bridge plug hydraulic setting core and the upper joint are correspondingly provided with pressure balance holes.
2. The coiled tubing hydro-abrasive perforation, setting and bridge plug integrated string as recited in claim 1, wherein the gland is made of high strength alloy steel plate resistant to erosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010856568.9A CN111877999B (en) | 2020-08-24 | 2020-08-24 | Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated pipe column and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010856568.9A CN111877999B (en) | 2020-08-24 | 2020-08-24 | Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated pipe column and construction method |
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| CN111877999A CN111877999A (en) | 2020-11-03 |
| CN111877999B true CN111877999B (en) | 2022-11-25 |
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| CN117345140B (en) * | 2023-12-05 | 2024-02-27 | 大庆金祥寓科技有限公司 | Supporting anchor device for jetting and decoupling same-hole secondary perforation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202745846U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Perforating, fracturing and sand washing integrated string for coiled tubing |
| CN202900060U (en) * | 2012-11-12 | 2013-04-24 | 中国石油天然气股份有限公司 | Process string for coiled tubing perforation, casing fracturing and bridge plug packing |
| CN103277061B (en) * | 2013-05-17 | 2016-04-13 | 四机赛瓦石油钻采设备有限公司 | A kind of hydraulic setting tool |
| CN104196464B (en) * | 2014-08-27 | 2018-01-30 | 杰瑞能源服务有限公司 | Tubing string string and bridging plug set the method made with abrasive perforating connection |
| CN204492786U (en) * | 2015-03-24 | 2015-07-22 | 中国石油集团渤海钻探工程有限公司 | Hydraulic sand blasting perforation and fracturing tool |
| CN205260017U (en) * | 2015-12-18 | 2016-05-25 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | Formula of can giving up bowling fracturing sliding sleeve |
| CN106246144A (en) * | 2016-08-26 | 2016-12-21 | 中国石油天然气股份有限公司 | Coiled tubing bridging plug perforating and fracturing integral process |
| CN208040320U (en) * | 2018-03-03 | 2018-11-02 | 达坦能源科技（上海）有限公司 | A kind of safety-type coiled tubing connector |
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