石油物探2018，Vol.57Issue(3)：369-377,9.DOI:10.3969/j.issn.1000-1441.2018.03.006
水平井地震地质导向技术及其在涪陵页岩气田的应用
Seismic geo-steering technology of horizontal well and its application in Fuling shale gas field
摘要
Abstract
Owing to multistage tectonic movements,shale gas reservoir O3w～S1l in the Fuling shale gas field has been highly deformed,and fractures and folds have developed.The seismic geo-steering drilling technology for horizontal wells encounters challenges owing to substantial change in the occurrence of this formation.To increase the rate at which high-quality shale formations are encountered during drilling,the seismic geo-steering drilling technology for horizontal wells based on a real-time correction model is presented.First,based on regional geological feature analysis,characteristics of the guiding bed were analyzed,and a real time fine substratum correlation was conducted.Second,by taking the seismic section as the initial geo-steering model,with comprehensive use of drilling and well logging,the velocity field was updated in real time.Then,the target depth and formation occurrence were predicted,and a real-time trajectory tracking and adjustment technique for horizontal wells was established,ensuring the trajectory of horizontal wells passing through high-quality shale gas reservoirs.The practice indicated that the seismic geosteering technology guided the drilling of horizontal wells in the Fuling shale gas field effectively.关键词
页岩气/地震地质导向/水平井/靶点调整/轨迹跟踪/邻井误差/变速成图Key words
shale gas/seismic geo-steering/horizontal well/target adjustment/trajectory tracking/adjacent wells error/variable velocity mapping分类
天文与地球科学引用本文复制引用
查树贵,刘利平,廖朋,吴娜珠,崔志恒,周从业..水平井地震地质导向技术及其在涪陵页岩气田的应用[J].石油物探,2018,57(3):369-377,9.基金项目
国家科技重大专项“涪陵页岩气开发示范工程”(2016ZX05060)资助.This research is financially supported by the National Science and Technology Major Project of China (Grant No.2016ZX05060). （2016ZX05060）
