天然气工业2017，Vol.37Issue(12)：1-10,10.DOI:10.3787/j.issn.1000-0976.2017.12.001
关键技术进步促进页岩气产业快速发展——以长宁—威远国家级页岩气示范区为例
Rapid shale gas development accelerated by the progress in key technologies: A case study of the Changning-Weiyuan national shale gas demonstration zone
摘要
Abstract
Shale gas resources in the Lower Silurian Longmaxi,southern Sichuan Basin are huge,where,the geological setting,unlike that in North America,is quite complicated and ground surface infrastructure is poor.Therefore,adaptable key technologies will be essential to achieve commercial exploitation of shale gas there.In the case study of the Changning-Weiyuan national shale gas demonstration zone,six series of key techniques were summarized in comprehensive geological evaluation,development optimization,fast and superior drilling of horizontal wells,horizontal-well volumetric fracturing,cluster-well and factory-like operation in well blocks,and highly-efficient and clean exploitation.The above techniques were applied in this field after three rounds of adjustment and optimization,the resulted production rates of shale gas wells were getting higher and higher and the single-well estimated ultimate recovery (EUR) was also rising.Compared with that in the first round,the average EUR of wells in the third round was increased by 128％.In conclusion,the application practices prove that the above series of key techniques with adaptation and flexibility provide a robust technical support for the rapid output of shale gas production in South Sichuan Basin.关键词
四川盆地南部/早志留世/页岩气/勘探开发/关键技术/开发效果/产能建设Key words
Sichuan Basin/South/Early Silurian/Shale gas/Exploration and Development/Key technologies/Development efficiency/Productivity construction引用本文复制引用
谢军..关键技术进步促进页岩气产业快速发展——以长宁—威远国家级页岩气示范区为例[J].天然气工业,2017,37(12):1-10,10.基金项目
国家科技重大专项“大型油气田及煤层气开发”下属项目“长宁—威远页岩气开发示范工程”(编号:2016ZX05062)、中国石油天然气股份有限公司重大科技专项(编号:2016E-0611). （编号:2016ZX05062）
