Risk analysis of extended reach wells in the Liuhua Oilfield, South China Sea, based on comprehensive fuzzy evaluation method
Drilling engineering has great uncertainty and it always involves huge investment and high risk. Risk analysis of extended reach drilling （ERD） is very important to prevent complex failures and to improve drilling efficiency. Nowadays there are few reports on how to analyze quantitatively the drilli...
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| Veröffentlicht in: | Petroleum science 2009-06, Vol.6 (2), p.172-175 |
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| creator | Zhang, Hui Gao, Deli Hao, Zhiwei |
| description | Drilling engineering has great uncertainty and it always involves huge investment and high risk. Risk analysis of extended reach drilling （ERD） is very important to prevent complex failures and to improve drilling efficiency. Nowadays there are few reports on how to analyze quantitatively the drilling risk for extended reach wells （ERWs）. Based on the fuzzy set theory, a comprehensive fuzzy evaluation model for analyzing risks of ERD is proposed in this paper. Well B6ERW07 is a planned 8,000-meter ERW with a high ratio of horizontal displacement （HD） to vertical depth （VD） in the Liuhua Oilfield, the South China Sea, China. On the basis of the evaluation model developed in this study, the risk for drilling Well B6ERW07 was evaluated before drilling. The evaluation result shows that the success rate of drilling this well is predicted to be 51.9%, providing important rational and scientific information for the decisionmakers. |
| doi_str_mv | 10.1007/s12182-009-0027-7 |
| format | Article |
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Risk analysis of extended reach drilling （ERD） is very important to prevent complex failures and to improve drilling efficiency. Nowadays there are few reports on how to analyze quantitatively the drilling risk for extended reach wells （ERWs）. Based on the fuzzy set theory, a comprehensive fuzzy evaluation model for analyzing risks of ERD is proposed in this paper. Well B6ERW07 is a planned 8,000-meter ERW with a high ratio of horizontal displacement （HD） to vertical depth （VD） in the Liuhua Oilfield, the South China Sea, China. On the basis of the evaluation model developed in this study, the risk for drilling Well B6ERW07 was evaluated before drilling. 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Sci</addtitle><addtitle>Petroleum Science</addtitle><description>Drilling engineering has great uncertainty and it always involves huge investment and high risk. Risk analysis of extended reach drilling （ERD） is very important to prevent complex failures and to improve drilling efficiency. Nowadays there are few reports on how to analyze quantitatively the drilling risk for extended reach wells （ERWs）. Based on the fuzzy set theory, a comprehensive fuzzy evaluation model for analyzing risks of ERD is proposed in this paper. Well B6ERW07 is a planned 8,000-meter ERW with a high ratio of horizontal displacement （HD） to vertical depth （VD） in the Liuhua Oilfield, the South China Sea, China. On the basis of the evaluation model developed in this study, the risk for drilling Well B6ERW07 was evaluated before drilling. The evaluation result shows that the success rate of drilling this well is predicted to be 51.9%, providing important rational and scientific information for the decisionmakers.</description><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Economics and Management</subject><subject>Energy Policy</subject><subject>Industrial and Production Engineering</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Mineral Resources</subject><subject>南中国海</subject><subject>大位移井</subject><subject>模糊综合评价方法</subject><subject>模糊综合评价模型</subject><subject>模糊集理论</subject><subject>钻井工程</subject><subject>风险分析</subject><issn>1672-5107</issn><issn>1995-8226</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAQx4so-PwA3oIXL1bzaJPNURZfsCD4OIdpOtnG7abatOoKfnezrODNw2SGzP83k_yz7JjRc0apuoiMswnPKdUpuMrVVrbHtC7zCedyO9VS8bxkVO1m-zG-UFowJfle9v3g44JAgHYVfSSdI_g5YKixJj2CbcgHtm0kPpChQTLzYzMCufet89jWZ-SxG4eGTBsfgDwinJEKYkK7QGy3fO2xwRD9OxI3fn2tCL5DO8LgU3uJQ9PVh9mOgzbi0W8-yJ6vr56mt_ns_uZuejnLoWBiyHXJmJiALKwW4JSmopQ65RKEUoViaK1womQgwUonKy0BHKbbqtYlraw4yE43cz8gOAhz89KNffpzNHG1-DTIk290fSQl2yht38XYozOvvV9CvzKMmrXTZuO0SWKzdtqoxPANE5M2zLH_G_8fdPK7qOnC_C1xpgK7cL5FI9JbVDGR4gc4Eo3R</recordid><startdate>20090601</startdate><enddate>20090601</enddate><creator>Zhang, Hui</creator><creator>Gao, Deli</creator><creator>Hao, Zhiwei</creator><general>China University of Petroleum (Beijing)</general><general>MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China</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>20090601</creationdate><title>Risk analysis of extended reach wells in the Liuhua Oilfield, South China Sea, based on comprehensive fuzzy evaluation method</title><author>Zhang, Hui ; Gao, Deli ; Hao, Zhiwei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a413t-951138a64c93af7903569f795a377471ecc3f351a6ac6f6b96aafeeccbd950bc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Economics and Management</topic><topic>Energy Policy</topic><topic>Industrial and Production Engineering</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Mineral Resources</topic><topic>南中国海</topic><topic>大位移井</topic><topic>模糊综合评价方法</topic><topic>模糊综合评价模型</topic><topic>模糊集理论</topic><topic>钻井工程</topic><topic>风险分析</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Hui</creatorcontrib><creatorcontrib>Gao, Deli</creatorcontrib><creatorcontrib>Hao, Zhiwei</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>Petroleum science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhang, Hui</au><au>Gao, Deli</au><au>Hao, Zhiwei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Risk analysis of extended reach wells in the Liuhua Oilfield, South China Sea, based on comprehensive fuzzy evaluation method</atitle><jtitle>Petroleum science</jtitle><stitle>Pet. 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| identifier | ISSN: 1672-5107 |
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| issn | 1672-5107 1995-8226 |
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| source | Springer Nature OA/Free Journals |
| subjects | Earth and Environmental Science Earth Sciences Economics and Management Energy Policy Industrial and Production Engineering Industrial Chemistry/Chemical Engineering Mineral Resources 南中国海 大位移井 模糊综合评价方法 模糊综合评价模型 模糊集理论 钻井工程 风险分析 |
| title | Risk analysis of extended reach wells in the Liuhua Oilfield, South China Sea, based on comprehensive fuzzy evaluation method |
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