CN111287710A - 一种用于松软煤层瓦斯抽采钻孔的防护用球 - Google Patents
一种用于松软煤层瓦斯抽采钻孔的防护用球 Download PDFInfo
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- CN111287710A CN111287710A CN202010171443.2A CN202010171443A CN111287710A CN 111287710 A CN111287710 A CN 111287710A CN 202010171443 A CN202010171443 A CN 202010171443A CN 111287710 A CN111287710 A CN 111287710A
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- hollow structure
- sphere
- spherical hollow
- gas extraction
- drill hole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/006—Production of coal-bed methane
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202010171443.2A CN111287710B (zh) | 2020-03-12 | 2020-03-12 | 一种用于松软煤层瓦斯抽采钻孔的防护用球 |
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CN202010171443.2A CN111287710B (zh) | 2020-03-12 | 2020-03-12 | 一种用于松软煤层瓦斯抽采钻孔的防护用球 |
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CN111287710A true CN111287710A (zh) | 2020-06-16 |
CN111287710B CN111287710B (zh) | 2022-01-28 |
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CN202010171443.2A Active CN111287710B (zh) | 2020-03-12 | 2020-03-12 | 一种用于松软煤层瓦斯抽采钻孔的防护用球 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102155256A (zh) * | 2011-03-10 | 2011-08-17 | 贵州铸安矿山科技股份有限公司 | 防止瓦斯抽采孔垮塌的方法 |
CN103195471A (zh) * | 2013-04-22 | 2013-07-10 | 中国矿业大学 | 一种防止井下煤层钻孔垮塌的方法 |
CN104879088A (zh) * | 2015-05-29 | 2015-09-02 | 辽宁工程技术大学 | 一种针对低渗透松软煤层瓦斯抽采钻孔的充填护孔方法 |
US20170370156A1 (en) * | 2015-11-30 | 2017-12-28 | China University Of Mining And Technology | Method of performing combined drilling, flushing, and cutting operations on coal seam having high gas content and prone to bursts to relieve pressure and increase permeability |
CN107654255A (zh) * | 2017-11-06 | 2018-02-02 | 兖矿贵州能化有限公司 | 一种抽采钻孔定点护孔防塌装置 |
US20190145259A1 (en) * | 2017-03-20 | 2019-05-16 | China University Of Mining And Technology | Method for stepwise construction of preferential gas migration pathway at stope in coal seam |
CN110344758A (zh) * | 2019-08-05 | 2019-10-18 | 湖南科技大学 | 一种高瓦斯极松软煤层瓦斯抽采钻孔的施工方法 |
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2020
- 2020-03-12 CN CN202010171443.2A patent/CN111287710B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102155256A (zh) * | 2011-03-10 | 2011-08-17 | 贵州铸安矿山科技股份有限公司 | 防止瓦斯抽采孔垮塌的方法 |
CN103195471A (zh) * | 2013-04-22 | 2013-07-10 | 中国矿业大学 | 一种防止井下煤层钻孔垮塌的方法 |
CN104879088A (zh) * | 2015-05-29 | 2015-09-02 | 辽宁工程技术大学 | 一种针对低渗透松软煤层瓦斯抽采钻孔的充填护孔方法 |
US20170370156A1 (en) * | 2015-11-30 | 2017-12-28 | China University Of Mining And Technology | Method of performing combined drilling, flushing, and cutting operations on coal seam having high gas content and prone to bursts to relieve pressure and increase permeability |
US20190145259A1 (en) * | 2017-03-20 | 2019-05-16 | China University Of Mining And Technology | Method for stepwise construction of preferential gas migration pathway at stope in coal seam |
CN107654255A (zh) * | 2017-11-06 | 2018-02-02 | 兖矿贵州能化有限公司 | 一种抽采钻孔定点护孔防塌装置 |
CN110344758A (zh) * | 2019-08-05 | 2019-10-18 | 湖南科技大学 | 一种高瓦斯极松软煤层瓦斯抽采钻孔的施工方法 |
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Address after: 221018 Lishui Road, Yunlong District, Xuzhou, Jiangsu 2 Applicant after: XUZHOU University OF TECHNOLOGY Address before: 221000 No.18, South Third Ring Road, Quanshan District, Xuzhou City, Jiangsu Province Applicant before: XUZHOU University OF TECHNOLOGY |
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Application publication date: 20200616 Assignee: Xuzhou Norteng Network Technology Co.,Ltd. Assignor: XUZHOU University OF TECHNOLOGY Contract record no.: X2023320000178 Denomination of invention: A protective ball for drilling holes for gas extraction in soft coal seams Granted publication date: 20220128 License type: Common License Record date: 20230731 |
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