Coupled effects of stress damage and drilling fluid on strength of hard brittle shale
During well drilling process,original stress state of hard brittle shale will be changed due to stress redistribution and concentration,which leads to stress damage phenomenon around the borehole.Consequently,drilling fluid will invade into formation along the tiny cracks induced by stress damage,an...
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| Veröffentlicht in: | Journal of Central South University 2016-12, Vol.23 (12), p.3256-3261 |
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| container_title | Journal of Central South University |
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| creator | 汪伟 邓金根 蔚宝华 郑小锦 闫传梁 邓月 |
| description | During well drilling process,original stress state of hard brittle shale will be changed due to stress redistribution and concentration,which leads to stress damage phenomenon around the borehole.Consequently,drilling fluid will invade into formation along the tiny cracks induced by stress damage,and then weaken the strength of hard brittle shale.Based on this problem,a theoretical model was set up to discuss damage level of shale under uniaxial compression tests using acoustic velocity data.And specifically,considering the coupled effect of stress damage and drilling fluid,the relationship between hard brittle shale strength and elapsed time was analyzed. |
| doi_str_mv | 10.1007/s11771-016-3391-7 |
| format | Article |
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Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>During well drilling process,original stress state of hard brittle shale will be changed due to stress redistribution and concentration,which leads to stress damage phenomenon around the borehole.Consequently,drilling fluid will invade into formation along the tiny cracks induced by stress damage,and then weaken the strength of hard brittle shale.Based on this problem,a theoretical model was set up to discuss damage level of shale under uniaxial compression tests using acoustic velocity data.And specifically,considering the coupled effect of stress damage and drilling fluid,the relationship between hard brittle shale strength and elapsed time was analyzed.</description><subject>Boreholes</subject><subject>Civil</subject><subject>Compression tests</subject><subject>Energy and Traffic Engineering</subject><subject>Engineering</subject><subject>Geological</subject><subject>Metallic Materials</subject><subject>Stress concentration</subject><subject>Uniaxial tests</subject><subject>单轴压缩试验</subject><subject>应力损伤</subject><subject>应力重分布</subject><subject>强度</subject><subject>硬脆性泥页岩</subject><subject>耦合效应</subject><subject>钻井液</subject><subject>钻井过程</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kMtu2zAQRYUiBWok-YDuiGZZqB0OJdFcBkYeBQx0U68JUhzKKmTKJmXk8fWlK6PNKquZxTn3ArcoPnP4xgHk98S5lLwE3pRCKF7KD8UCEWVZI4qL_IOqS1wq9am4Tqm3IDg2olHNotisxuN-IMfIe2qnxEbP0hQpJebMznTETHDMxX4Y-tAxPxx7x8bwlwndtD3xWxMds7GfpoFY2pqBroqP3gyJrs_3stjc3_1aPZbrnw8_VrfrshVSTWVthXee6lY5Y6WpSQG6hsBBZSpsqoa3lVWSgCsuXA0SrAJlDbRkwRkvLouvc-6TCd6ETv8ejzHkRv0auhf3_Gw1YZ6FI2CV6ZuZ3sfxcKQ0_cf5cglSIdbLTPGZauOYUiSv97HfmfiiOejT3HqeW-dcfZpby-zg7KTMho7im-R3pC_nou0YukP2_jU1kqPIPIo_k3GN1g</recordid><startdate>20161201</startdate><enddate>20161201</enddate><creator>汪伟 邓金根 蔚宝华 郑小锦 闫传梁 邓月</creator><general>Central South University</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20161201</creationdate><title>Coupled effects of stress damage and drilling fluid on strength of hard brittle shale</title><author>汪伟 邓金根 蔚宝华 郑小锦 闫传梁 邓月</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c379t-5b3fdfe5c9dab7a5e902d6e0d04a426461c4b97e01913d5070b909ba0ceb0daf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Boreholes</topic><topic>Civil</topic><topic>Compression tests</topic><topic>Energy and Traffic Engineering</topic><topic>Engineering</topic><topic>Geological</topic><topic>Metallic Materials</topic><topic>Stress concentration</topic><topic>Uniaxial tests</topic><topic>单轴压缩试验</topic><topic>应力损伤</topic><topic>应力重分布</topic><topic>强度</topic><topic>硬脆性泥页岩</topic><topic>耦合效应</topic><topic>钻井液</topic><topic>钻井过程</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>汪伟 邓金根 蔚宝华 郑小锦 闫传梁 邓月</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>汪伟 邓金根 蔚宝华 郑小锦 闫传梁 邓月</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Coupled effects of stress damage and drilling fluid on strength of hard brittle shale</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2016-12-01</date><risdate>2016</risdate><volume>23</volume><issue>12</issue><spage>3256</spage><epage>3261</epage><pages>3256-3261</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>During well drilling process,original stress state of hard brittle shale will be changed due to stress redistribution and concentration,which leads to stress damage phenomenon around the borehole.Consequently,drilling fluid will invade into formation along the tiny cracks induced by stress damage,and then weaken the strength of hard brittle shale.Based on this problem,a theoretical model was set up to discuss damage level of shale under uniaxial compression tests using acoustic velocity data.And specifically,considering the coupled effect of stress damage and drilling fluid,the relationship between hard brittle shale strength and elapsed time was analyzed.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-016-3391-7</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of Central South University, 2016-12, Vol.23 (12), p.3256-3261 |
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| language | eng |
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| source | Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings |
| subjects | Boreholes Civil Compression tests Energy and Traffic Engineering Engineering Geological Metallic Materials Stress concentration Uniaxial tests 单轴压缩试验 应力损伤 应力重分布 强度 硬脆性泥页岩 耦合效应 钻井液 钻井过程 |
| title | Coupled effects of stress damage and drilling fluid on strength of hard brittle shale |
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