CN101338663A - Horizontal well mechanical staged fracturing blocking-proof process pipe column - Google Patents
Horizontal well mechanical staged fracturing blocking-proof process pipe column Download PDFInfo
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- CN101338663A CN101338663A CNA2008101368975A CN200810136897A CN101338663A CN 101338663 A CN101338663 A CN 101338663A CN A2008101368975 A CNA2008101368975 A CN A2008101368975A CN 200810136897 A CN200810136897 A CN 200810136897A CN 101338663 A CN101338663 A CN 101338663A
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- horizontal well
- centralizer
- column jacket
- sand
- packer
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Abstract
The present invention belongs to a technical column jacket which is used for preventing sand sticking in oil-water well horizontal well pressure crack. The technical column jacket mainly solves the problem of column jacket sand sticking caused by small oil casing annular area at the underside and sand deposit under a sand nozzle during the pressure crack process of a low-permeability oil pool horizontal well. The technical column jacket mainly consists of an oil pipe (1), a safe joint (2), a centralizer (3), a water power anchor (4), a packer (5), a pressure guide sand sprayer (6) and a guide plug (7), wherein, the lower end of the oil pipe (1) is orderly connected with the safe joint (2), the centralizer (3), the water power anchor (4), the packer (5), the centralizer (3), the pressure guide sand sprayer (6) and the guide plug (7). The technical column jacket is mainly used in the oilfield horizontal well pressure crack and has the advantages of preventing construction column jacket sand sticking, improving the safety and the stability of the column jacket, etc.
Description
Technical field:
The invention belongs to a kind of process pipe string that is used for oil-water well fractured horizontal well sand control card.
Background technology:
Along with deepening continuously of oil-gas field development and improving constantly of horizontal well technology, the low porosity and low permeability oil reservoir comes into one's own gradually, and in order to improve recovery ratio, nearly all LOW PERMEABILITY RESERVOIR horizontal well all needs pressure break to go into operation; Fractured horizontal well generally adopted general current limliting staged fracturing, mechanical packer and can drag for bridging plug and carry out staged fracturing, jetting staged fracturing in the past.These fracturing technique engineering times are long, and segmentation is few, the cost height.At these situations, developed fractured horizontal well anti-sticking process pipe string, it can realize the horizontal well in segments pressure break, has improved efficient, greatly reduces the risk of construction cost, operating tool string sand card.Make fracturing string safe and reliable in work progress.
Summary of the invention:
The purpose of this invention is to provide a kind of can being lowered to smoothly at horizontal well, fracturing process prevents the sand card, can be used for realizing the horizontal well mechanical staged fracturing blocking-proof process pipe column of horizontal well in segments pressure break again.
The present invention mainly is made up of oil pipe, safety joint, centralizer, hydraulic anchor, packer, pilot sandblaster and guiding plug; Oil pipe lower end attachment security joint, centralizer, hydraulic anchor, packer, centralizer, pilot sandblaster, packer and guiding plug successively wherein.
An oil pipe is arranged between centralizer and the hydraulic anchor; Be connected by oil pipe between centralizer and the pilot sandblaster; Packer is an expansion type K344 type.
Compared with the prior art the present invention has the following advantages:
Utilize packer and the kit can be to desiring processing layer position fragment-force, the chock pressure difference by the pilot sandblaster sets the pressure break packer, takes the mode put forward, and one-trip string can be finished the pressure break of each interval.The sand jet outlet of pilot sandblaster is short apart from the packing element end face distance of right side packer, has reduced the sand setting of packer upper end, and safety joint adopts hydraulic pressure to give up, and has improved the security performance of fracturing technology.This process structure is simple, and the packer lower end is a movable end, and its pressure-bearing height is implemented the segmentation transformation for horizontal well means are provided.
Description of drawings:
Fig. 1 is a structure diagram of the present invention;
The specific embodiment:
The present invention mainly is made up of oil pipe 1, safety joint 2, centralizer 3, hydraulic anchor 4, packer 5, pilot sandblaster 6 and guiding plug 7; Oil pipe 1 lower end attachment security joint 2, centralizer 3, hydraulic anchor 4, packer 5, centralizer 3, pilot sandblaster 6, packer 5 and guiding plug 7 successively wherein.
An oil pipe 1 is arranged between centralizer 3 and the hydraulic anchor 4; Be connected by oil pipe 1 between centralizer 3 and the pilot sandblaster 6; Packer 5 is an expansion type K344 type.
During site operation, in oil pipe carries under this tubing string sleeve pipe behind the precalculated position, seated well head, ground fluid injection then, pilot sandblaster 6 produces chock pressure difference sets the packer 5 of left and right sides simultaneously, realize separating the purpose of oil layer section, fracturing fluid enters into the stratum through the side opening of pilot sandblaster 6, presses off the stratum.Upper lifting pipe post behind the intact interval of pressure break makes this tubing string advance to another interval and carries out pressure break, and one-trip string just can be finished the pressure break of each interval like this.
Claims (4)
1, horizontal well mechanical staged fracturing blocking-proof process pipe column is characterized in that: it mainly is made up of oil pipe (1), safety joint (2), centralizer (3), hydraulic anchor (4), packer (5), pilot sandblaster (6) and guiding plug (7); Oil pipe (1) lower end attachment security joint (2), centralizer (3), hydraulic anchor (4), packer (5), centralizer (3), pilot sandblaster (6), packer (5) and guiding plug (7) successively wherein.
2, horizontal well mechanical staged fracturing blocking-proof process pipe column according to claim 1 is characterized in that: between centralizer (3) and the hydraulic anchor (4) oil pipe (1) is arranged.
3, horizontal well mechanical staged fracturing blocking-proof process pipe column according to claim 1 is characterized in that: be connected by oil pipe (1) between centralizer (3) and the pilot sandblaster (6).
4, horizontal well mechanical staged fracturing blocking-proof process pipe column according to claim 1 is characterized in that: packer (5) is an expansion type K344 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101368975A CN101338663A (en) | 2008-08-07 | 2008-08-07 | Horizontal well mechanical staged fracturing blocking-proof process pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101368975A CN101338663A (en) | 2008-08-07 | 2008-08-07 | Horizontal well mechanical staged fracturing blocking-proof process pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101338663A true CN101338663A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101368975A Pending CN101338663A (en) | 2008-08-07 | 2008-08-07 | Horizontal well mechanical staged fracturing blocking-proof process pipe column |
Country Status (1)
| Country | Link |
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| CN (1) | CN101338663A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174880A (en) * | 2011-02-28 | 2011-09-07 | 中国石油集团川庆钻探工程有限公司 | Releasing method applicable to packer layered sand fracturing string |
| CN101560875B (en) * | 2009-05-18 | 2012-07-04 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN102758599A (en) * | 2012-08-03 | 2012-10-31 | 中国海洋石油总公司 | Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof |
| CN102852504A (en) * | 2012-09-13 | 2013-01-02 | 中国石油天然气股份有限公司 | Immobile pipe column multi-layer fracturing tool string for vertical shaft |
| RU2493353C1 (en) * | 2012-10-19 | 2013-09-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer assembly |
| CN104213895A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Hydraulic sand jet perforation, fracture and sand filling integrated technological method |
| CN105178905A (en) * | 2015-09-11 | 2015-12-23 | 中国石油天然气股份有限公司 | Process tubing string and method for integrated setting and channeling testing of bridge plugs of horizontal wells |
| CN105221094A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Horizontal well two envelope single deck tape-recorder Technics of Prevention of Well Blowout |
| CN105735916A (en) * | 2016-03-25 | 2016-07-06 | 西南石油大学 | Crawling horizontal well drill string feed-in tool |
| CN105781504A (en) * | 2016-03-07 | 2016-07-20 | 中国石油天然气股份有限公司 | Pressure testing method for segmented oil pool and segmented trial-squeezing tubing string |
| CN106481324A (en) * | 2015-08-25 | 2017-03-08 | 中国石油化工股份有限公司 | Hydraulic control self-unsealing formula fracturing strings |
| US9708889B2 (en) | 2011-06-22 | 2017-07-18 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
| CN111206910A (en) * | 2020-01-19 | 2020-05-29 | 孙淑芳 | Hydraulic jet staged fracturing tool for horizontal well |
| CN111456672A (en) * | 2020-04-01 | 2020-07-28 | 刘超 | Hydraulic expansion type packer |
| CN112031730A (en) * | 2020-09-15 | 2020-12-04 | 中国石油天然气股份有限公司 | Mechanical horizontal well inter-fracture alternate injection-production oil extraction process |
| CN112513421A (en) * | 2018-07-27 | 2021-03-16 | 贝克休斯控股有限责任公司 | Distributed fluid injection system for a wellbore |
-
2008
- 2008-08-07 CN CNA2008101368975A patent/CN101338663A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560875B (en) * | 2009-05-18 | 2012-07-04 | 中国石油辽河油田钻采工艺研究院 | Multifunctional horizontal well completion tubular pile device |
| CN102174880B (en) * | 2011-02-28 | 2013-09-11 | 中国石油集团川庆钻探工程有限公司 | Releasing method applicable to packer layered sand fracturing string |
| CN102174880A (en) * | 2011-02-28 | 2011-09-07 | 中国石油集团川庆钻探工程有限公司 | Releasing method applicable to packer layered sand fracturing string |
| US9708889B2 (en) | 2011-06-22 | 2017-07-18 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
| US10450837B2 (en) | 2011-06-22 | 2019-10-22 | China Petroleum & Chemical Corporation | Sleeve fracturing assembly, device using the same and method for using the same |
| CN102758599A (en) * | 2012-08-03 | 2012-10-31 | 中国海洋石油总公司 | Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof |
| CN102852504A (en) * | 2012-09-13 | 2013-01-02 | 中国石油天然气股份有限公司 | Immobile pipe column multi-layer fracturing tool string for vertical shaft |
| RU2493353C1 (en) * | 2012-10-19 | 2013-09-20 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer assembly |
| CN104213895A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Hydraulic sand jet perforation, fracture and sand filling integrated technological method |
| CN104213895B (en) * | 2013-06-05 | 2018-02-02 | 中国石油天然气股份有限公司 | Hydraulic jet perforation pressure break and back-up sand combination operation process method |
| CN106481324A (en) * | 2015-08-25 | 2017-03-08 | 中国石油化工股份有限公司 | Hydraulic control self-unsealing formula fracturing strings |
| CN105178905A (en) * | 2015-09-11 | 2015-12-23 | 中国石油天然气股份有限公司 | Process tubing string and method for integrated setting and channeling testing of bridge plugs of horizontal wells |
| CN105221094A (en) * | 2015-09-23 | 2016-01-06 | 中国石油天然气股份有限公司 | Horizontal well two envelope single deck tape-recorder Technics of Prevention of Well Blowout |
| CN105781504B (en) * | 2016-03-07 | 2019-06-11 | 中国石油天然气股份有限公司 | A kind of segmentation reservoir pressure test method |
| CN105781504A (en) * | 2016-03-07 | 2016-07-20 | 中国石油天然气股份有限公司 | Pressure testing method for segmented oil pool and segmented trial-squeezing tubing string |
| CN105735916A (en) * | 2016-03-25 | 2016-07-06 | 西南石油大学 | Crawling horizontal well drill string feed-in tool |
| CN112513421A (en) * | 2018-07-27 | 2021-03-16 | 贝克休斯控股有限责任公司 | Distributed fluid injection system for a wellbore |
| US11767743B2 (en) | 2018-07-27 | 2023-09-26 | Baker Hughes, A Ge Company, Llc | Distributed fluid injection system for wellbores |
| CN112513421B (en) * | 2018-07-27 | 2023-11-28 | 贝克休斯控股有限责任公司 | Distributed fluid injection system for a wellbore |
| CN111206910A (en) * | 2020-01-19 | 2020-05-29 | 孙淑芳 | Hydraulic jet staged fracturing tool for horizontal well |
| CN111206910B (en) * | 2020-01-19 | 2020-10-27 | 延安兴庆石油工程技术服务有限公司 | Hydraulic jet staged fracturing tool for horizontal well |
| CN111456672A (en) * | 2020-04-01 | 2020-07-28 | 刘超 | Hydraulic expansion type packer |
| CN111456672B (en) * | 2020-04-01 | 2022-04-26 | 大庆市地油石油机械有限公司 | Hydraulic expansion type packer |
| CN112031730A (en) * | 2020-09-15 | 2020-12-04 | 中国石油天然气股份有限公司 | Mechanical horizontal well inter-fracture alternate injection-production oil extraction process |
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Open date: 20090107 |