石油钻采工艺2011，Vol.33Issue(3)：82-86,5.
煤层气分支水平井地质导向实践与认识
Practice and cognition of multi-branched horizontal well geo-steering in CBM well
摘要
Abstract
In order to develop the coal bed methane reservoir in low cost, comprehensive mud logging combining with MWD was first conducted in feather-shaped multi-branched horizontal wells drilling by Bohai Drilling Engineering Company in 2010. Through analyzing characteristics of coal bed, optimizing oriented parameters combination, building geo- steering workflow to study and practice surrounding rock recognition and trace controlling technologies near the bit. And based on that, the preliminary trial in 2 wells is performed successfully. The depth was 3105 m in Well ZP02 while drilling with coal bed and probability of penetration was up to 88.08%, meanwhile, while drilling with coal bed in Well ZP02 the depth was 3169 m and probability of penetration was 89.4%. The successful application in these 2 wells has showed that comprehensive logging and MWD combination must be feasible in drilling feather-shaped multi-branched horizontal well.关键词
煤层气/多分支水平井/MWD/综合录井/地质导向Key words
coal bed methane/ multi-branched horizontal well/ MWD/ comprehensive mud logging/ geo-steering分类
天文与地球科学引用本文复制引用
纪伟,姜维寨,胡锦堂,李新房,孟宪军,赵年峰..煤层气分支水平井地质导向实践与认识[J].石油钻采工艺,2011,33(3):82-86,5.基金项目
国家科技重大专项“大型油气田及煤层气开发”子课题“煤层气高效开发技术”(编号:2008ZX05036-002)部分研究成果. （编号:2008ZX05036-002）
