CN103696748A - Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column - Google Patents
Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column Download PDFInfo
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- CN103696748A CN103696748A CN201210366966.8A CN201210366966A CN103696748A CN 103696748 A CN103696748 A CN 103696748A CN 201210366966 A CN201210366966 A CN 201210366966A CN 103696748 A CN103696748 A CN 103696748A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 238000002407 reforming Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 9
- 230000009466 transformation Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention discloses an intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column with no limit to the number of stages, which is designed for realizing the layered reconstruction of a vertical well of an oil-gas well with no limit to the number of stages and meeting the process requirements of the multistage fracturing reconstruction of an oil-gas field. A piston is arranged in the cavity of the intelligent well cementation sliding sleeve, the upper barrel is provided with a radial fracturing port, and a hydraulic pipeline for communicating the two-position four-way electromagnetic valve, the battery, the wireless induction receiving device, the antenna, the water tank and the upper and lower cavities of the barrel is embedded in the groove of the barrel wall of the lower barrel. The tubular column can realize the layered fracturing reformation without limited stages; the construction period can be greatly shortened, and the cost is saved; the drilling tool can replace foreign products, and reduce the labor intensity of drilling; the first layer of intelligent well cementation sliding sleeve can be opened by directly throwing an electronic ball without perforation; after fracturing is completed, balls can be thrown to open all the sliding sleeves, and full drift diameter is realized; the well control risk of drilling and grinding can be reduced.
Description
Technical field
The present invention relates to a kind of intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of not limitting progression, belong to Oil/gas Well multilevel hierarchy fracture technology field.
Background technology
At present, oil field at home cased well multistage fracturing reform mode mainly contains two large classes: the one, and utilize cable perforation and mechanical packer to realize the packing between interval, by opening successively fracturing sliding bush, complete multistage fracturing transformation; The 2nd, utilize hydraulic jetting fracturing instrument to carry out hydraulic perforation, by hydraulic jet effect, realize interlayer packing, spray pressure break and complete multistage transformation; Above-mentioned tubing string adopts the ascending ball sealer of input to complete the unlatching of sliding sleeves at different levels (sandblaster) and the isolation of the section of transformation when segmentation.Owing to being subject to the restriction of well head, pit shaft, operating tool string and tool design size, even if above-mentioned technology is constantly optimized and be perfect, also only can complete the separate stratum fracfturing transformation of finite progression.Meanwhile, what above-mentioned tubing string adopted is pressure break and production integration technology, does not generally possess the function of later stage control production and selective exploitation.
Along with the development of oil gas field, the separate stratum fracfturing reforming technology of finite progression can not meet the demand of the multistage several fracturing reforms of Oil/gas Well.At present, do not limit progression well cementation sliding sleeve need to adopt pressure guiding pipeline to carry out pressure conduction abroad, its lower workload of boring is large, and pipeline junction exists leakage risk, needs to bore mill and could realize tubing string full-bore after pressure break completes, and construction risk is large, and expense is high.
Summary of the invention
The object of the present invention is to provide a kind of intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of not limitting progression, it can realize the separate zone stimulation that Oil/gas Well straight well is not limit progression, meets the technological requirement of oil gas field multistage fracturing transformation.
Concrete technical scheme of the present invention is as follows:
Process pipe string of the present invention is located in cement sheath, and upper end connects well head, and the float collar and the float shoe that by the multistage intelligent well cementation sliding sleeve connecting by sleeve pipe and tubing string tail end, are connected form.The upper shell lower shell that is threaded of intelligence well cementation sliding sleeve, is provided with the piston being sealed by sealing ring in the chamber that upper and lower cylindrical shell is communicated with.Upper shell barrel is provided with radially pressure break port, in lower shell barrel, be provided with groove, in groove, be embedded with hydraulic line A, hydraulic line B, two-position four-way solenoid valve, battery, wireless induction receiving system, hydraulic line C, hydraulic line D, antenna and water tank, lower shell outer wall is provided with cover plate.Hydraulic line A is communicated with cylindrical shell upper chamber, and hydraulic line B is communicated with cylindrical shell lower chambers, and hydraulic line C is communicated with sleeve pipe, hydraulic line D joining water box, and two-position four-way solenoid valve is communicated with each hydraulic line.Electronic ball 7 is comprised of Ceramic Balls and induced inside chip.
No matter process pipe string borehole size size of the present invention all can realize the separate stratum fracfturing transformation of not limitting progression, meet the technological requirement of oil gas field multistage fracturing transformation; Cased hole completion and light casing fracturing can simplify construction sequence, significantly shorten construction period, cost-saving; If certain grade of well cementation sliding sleeve is opened failure, available coiled tubing or banded cable switching tools open or close well cementation sliding sleeve, guarantee the carrying out of follow-up construction; Intelligence well cementation sliding sleeve has replaced the pressure conduction pipeline of external product, and the labour intensity in the time of reducing lower boring, reduces risk hand-manipulated; In straight well, directly drop into electronic ball, open first floor intelligence well cementation sliding sleeve, without perforation; After pressure break completes, drop into electronic ball and can open all sliding sleeves, can realize full-bore, can reduce the well control risk of boring mill, reduce construction cost; Can utilize the electronic ball of CF to close the sliding sleeve of water-yielding stratum.
Accompanying drawing explanation
Fig. 1 is not for limitting the schematic diagram of the intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of progression.
Fig. 2 is intelligent well cementation sliding sleeve structural representation.
Fig. 3 is electronic ball structural representation.
The specific embodiment
Referring to figs. 1 through 3 pairs of embodiments of the invention, further illustrate:
Embodiment:
Process pipe string of the present invention is located in cement sheath 2, and upper end connects well head 1, and the float collar 5 and the float shoe 6 that by the multistage intelligent well cementation sliding sleeve 4 connecting by sleeve pipe 3 and tubing string tail end, are connected form.Upper shell 41 lower shell 413 that is threaded of intelligence well cementation sliding sleeve 4, is provided with the piston 42 being sealed by sealing ring 43 in the chamber that upper and lower cylindrical shell is communicated with.Upper shell 41 barrels are provided with radially pressure break port, in lower shell 413 barrels, be provided with groove, in groove, be embedded with hydraulic line A44, hydraulic line B45, be communicated with two-position four-way solenoid valve 46, battery 47, wireless induction receiving system 48, hydraulic line C49, hydraulic line D410, antenna 411 and the water tank 412 of each hydraulic line, lower shell 413 outer walls are provided with cover plate 414.Hydraulic line A44 is communicated with cylindrical shell upper chamber, and hydraulic line B45 is communicated with cylindrical shell lower chambers, and hydraulic line C49 is communicated with sleeve pipe, hydraulic line D410 joining water box 412, and two-position four-way solenoid valve 46 is communicated with each hydraulic line.Electronic ball 7 is comprised of Ceramic Balls 71 and induced inside chip 72.
The present invention is according to the length ruling sleeve pipe of each fractured layer position, and by the sleeve pipe connection multistage intelligent well cementation sliding sleeve of different length, tubing string tail end connects float collar and float shoe, by throwing electronic ball, realizes closing and opening of sliding sleeves at different levels.
Do not limit the course of work of intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of progression as follows:
First, carry out conventional drilling well and well logging, determine the position of fractured layer position and intelligent well cementation sliding sleeve, be lowered to process pipe string of the present invention, log well and adjust intelligent well cementation sliding sleeve position, then adopt special plug well cementation, steel wire drifting, guarantees that intelligent well cementation sliding sleeves at different levels are in normal condition.
Throw one-level electronic ball, its free skating in liquid drops down onto the first fractured layer position, and the intelligent well cementation sliding sleeve that is positioned at first floor position is received signal, opens pressure break port, and well head pressurization, crushes cement sheath and carry out first floor pressure break.
After having replaced first floor liquid, throw secondary electrons ball, it is together pumped to second layer position with liquid, and second layer intelligence well cementation sliding sleeve is received signal, opens pressure break port; Meanwhile, when secondary electrons ball comes downwards to second layer position, first floor intelligence well cementation sliding sleeve is received respective signal, closes pressure break port; Improve pump pressure, pressure rise shows that first floor intelligence well cementation sliding sleeve closes, and continues to improve pump pressure, crushes cement sheath and carries out second layer pressure break.The like, secondary electrons ball continues descending, realizes the separate stratum fracfturing of not limitting progression.After pressing crack construction completes, throw electronic ball and open all intelligent well cementation sliding sleeves, finally close a layer discharge opeing, ask product.
If selectively exploit, can throw the electronic ball of respective layer position and close intelligent well cementation sliding sleeve, can also, by coiled tubing band sliding sleeve switch instrument, open or close arbitrarily intelligent well cementation sliding sleeve.
The operating principle of intelligence well cementation sliding sleeve is as follows:
When electronic ball 7 is neighbouring through intelligent well cementation sliding sleeve 4, antenna 411 receives signal and is passed to successively wireless induction receiving system 48,46 actions of indication two-position four-way solenoid valve, are communicated with hydraulic line A44 and hydraulic line C49, are communicated with hydraulic line B45 and hydraulic line D410 simultaneously.Sleeve pipe liquid enters cylindrical shell upper chamber from hydraulic line C49, two-position four-way solenoid valve 46 and hydraulic line A44, promotes piston 42 descending, exposes pressure break port.The liquid of cylindrical shell bottom chamber enters water tank 412 by hydraulic line B45, two-position four-way solenoid valve 46 and hydraulic line D410, completes the unlatching of piston 42.
When upper level electronic ball 7 is neighbouring through intelligent well cementation sliding sleeve 4, antenna 411 receives signal and is passed to successively wireless induction receiving system 48,46 actions of indication two-position four-way solenoid valve, are communicated with hydraulic line A44 and hydraulic line C49, are communicated with hydraulic line B45 and hydraulic line D410 simultaneously.Sleeve pipe liquid enters cylindrical shell lower chambers from hydraulic line C49, two-position four-way solenoid valve 46 and hydraulic line B45, promotes piston 42 up, closes pressure break port.Liquid in cylindrical shell upper chamber enters water tank 412 by hydraulic line A44, two-position four-way solenoid valve 46 and hydraulic line D410, completes closing of piston 42.
Claims (2)
1. an intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of not limitting progression, is characterized in that:
Process pipe string of the present invention is located in cement sheath (2), and upper end connects well head (1), and the float collar (5) and the float shoe (6) that by the multistage intelligent well cementation sliding sleeve (4) connecting by sleeve pipe (3) and tubing string tail end, are connected form;
Upper shell (41) lower shell (413) that is threaded of intelligence well cementation sliding sleeve (4), is provided with the piston (42) by sealing ring (43) sealing in the chamber that upper and lower cylindrical shell is communicated with; Upper shell (41) barrel is provided with radially pressure break port, in lower shell (413) barrel, be provided with groove, in groove, be embedded with hydraulic line A (44), hydraulic line B (45), two-position four-way solenoid valve (46), battery (47), wireless induction receiving system (48), hydraulic line C (49), hydraulic line D (410), antenna (411) and water tank (412), lower shell (413) outer wall is provided with cover plate (414); Hydraulic line A (44) is communicated with cylindrical shell upper chamber, hydraulic line B (45) is communicated with cylindrical shell lower chambers, hydraulic line C (49) is communicated with sleeve pipe, hydraulic line D (410) joining water box (412), and two-position four-way solenoid valve (46) is communicated with each hydraulic line;
Electronic ball (7) is comprised of Ceramic Balls (71) and induced inside chip (72).
2. the intelligent well cementation sliding sleeve separate stratum fracfturing reforming technology tubing string of not limitting progression as claimed in claim 1, it is characterized in that when electronic ball (7) is neighbouring through intelligent well cementation sliding sleeve (4), antenna (411) receives signal and is passed to successively wireless induction receiving system (48), indication two-position four-way solenoid valve (46) action, be communicated with hydraulic line A (44) and hydraulic line C (49), be communicated with hydraulic line B (45) and hydraulic line D (410) simultaneously; Sleeve pipe liquid enters cylindrical shell upper chamber from hydraulic line C (49), two-position four-way solenoid valve (46) and hydraulic line A (44), promotes piston (42) descending, exposes pressure break port; The liquid of cylindrical shell bottom chamber enters water tank (412) by hydraulic line B (45), two-position four-way solenoid valve (46) and hydraulic line D (410), completes the unlatching of piston (42);
When upper level electronic ball (7) is neighbouring through intelligent well cementation sliding sleeve (4), antenna (411) receives signal and is passed to successively wireless induction receiving system (48), indication two-position four-way solenoid valve (46) action, be communicated with hydraulic line A (44) and hydraulic line C (49), be communicated with hydraulic line B (45) and hydraulic line D (410) simultaneously; Sleeve pipe liquid enters cylindrical shell lower chambers from hydraulic line C (49), two-position four-way solenoid valve (46) and hydraulic line B (45), promotes piston (42) up, closes pressure break port.Liquid in cylindrical shell upper chamber enters water tank (412) by hydraulic line A (44), two-position four-way solenoid valve (46) and hydraulic line D (410), completes closing of piston (42).
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| CN201210366966.8A CN103696748B (en) | 2012-09-28 | 2012-09-28 | Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column |
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| CN201210366966.8A CN103696748B (en) | 2012-09-28 | 2012-09-28 | Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822257A (en) * | 2015-01-09 | 2016-08-03 | 中国石油天然气股份有限公司 | Intelligent sliding sleeve of horizontal well |
| CN106593352A (en) * | 2016-12-27 | 2017-04-26 | 中国石油天然气股份有限公司 | Automatically controlled sliding sleeve and fracturing string |
| CN107288580A (en) * | 2017-08-07 | 2017-10-24 | 成都大学 | A kind of remote control sliding sleeve of bushing communicated based on electrical potential difference |
| CN107725021A (en) * | 2017-11-23 | 2018-02-23 | 西安石油大学 | A kind of unlimited level intelligence sliding bush apparatus of horizontal well |
| CN110005391A (en) * | 2019-04-19 | 2019-07-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Intelligent switch casing sliding sleeve layered fracturing process pipe column and process method thereof |
| WO2021142878A1 (en) * | 2020-01-16 | 2021-07-22 | 成都维锐泰达能源技术有限公司 | Multi-stage fracturing intelligent control system and control method |
| WO2021142877A1 (en) * | 2020-01-16 | 2021-07-22 | 成都维锐泰达能源技术有限公司 | Smart delivery device |
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| CN202900225U (en) * | 2012-09-28 | 2013-04-24 | 中国石油天然气股份有限公司 | Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column |
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2012
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Patent Citations (6)
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| EP0692610A2 (en) * | 1994-07-12 | 1996-01-17 | Halliburton Company | Downhole sleeve valve and stimulation tool |
| US6216785B1 (en) * | 1998-03-26 | 2001-04-17 | Schlumberger Technology Corporation | System for installation of well stimulating apparatus downhole utilizing a service tool string |
| WO2010123585A2 (en) * | 2009-04-24 | 2010-10-28 | Completion Technology Ltd. | New and improved blapper valve tools and related methods |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822257A (en) * | 2015-01-09 | 2016-08-03 | 中国石油天然气股份有限公司 | Intelligent sliding sleeve of horizontal well |
| CN106593352A (en) * | 2016-12-27 | 2017-04-26 | 中国石油天然气股份有限公司 | Automatically controlled sliding sleeve and fracturing string |
| CN106593352B (en) * | 2016-12-27 | 2019-07-09 | 中国石油天然气股份有限公司 | Automatically controlled sliding sleeve and fracturing string |
| CN107288580A (en) * | 2017-08-07 | 2017-10-24 | 成都大学 | A kind of remote control sliding sleeve of bushing communicated based on electrical potential difference |
| CN107288580B (en) * | 2017-08-07 | 2023-08-22 | 成都大学 | Remote control sleeve sliding sleeve based on potential difference communication |
| CN107725021A (en) * | 2017-11-23 | 2018-02-23 | 西安石油大学 | A kind of unlimited level intelligence sliding bush apparatus of horizontal well |
| CN110005391A (en) * | 2019-04-19 | 2019-07-12 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Intelligent switch casing sliding sleeve layered fracturing process pipe column and process method thereof |
| CN110005391B (en) * | 2019-04-19 | 2023-07-28 | 中国石油天然气集团有限公司 | Intelligent switch sleeve sliding sleeve layered fracturing process pipe column and process method thereof |
| WO2021142878A1 (en) * | 2020-01-16 | 2021-07-22 | 成都维锐泰达能源技术有限公司 | Multi-stage fracturing intelligent control system and control method |
| WO2021142877A1 (en) * | 2020-01-16 | 2021-07-22 | 成都维锐泰达能源技术有限公司 | Smart delivery device |
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| CN103696748B (en) | 2016-10-12 |
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