山前高陡构造复杂井东秋6井钻井实践

Drilling in Dongqiu 6 well in piedmont high and steep structure

陈世春 丛长江 秦岭 王树超 李勇

CHEN Shichun CONG Changjiang QIN Ling WANG Shuchao LI Yong

中国石油渤海钻探工程有限公司塔里木钻井分公司，新疆库尔勒　841000 渤海钻探工程技术研究院，河北任丘　062552

Tarim Drilling Brach of CNPC Bohai Drilling Engineering Company Limited, Korla 841000, China Bohai Drilling Engineering Technology Institute, Renqiu 062552, china

针对塔里木油田山前高陡构造钻井施工难度大、事故复杂时效高、钻井速度缓慢等问题，开展了以垂直钻井、优质高效PDC钻头、复合盐层钻井技术等为主要内容的先进技术的应用。以东秋6井为例，从山前高陡构造复杂井钻井关键技术、钻井施工过程等方面进行了论述。应用结果表明，这些技术很好地解决了塔里木山前高陡构造的高速、高效、安全钻进问题。关键词：山前高陡构造；垂直钻井；研磨性；PDC钻头；复合盐层

In view of such problems as difficult and slow drilling in piedmont high and steep structure of Tarim Oilfield, advanced technologies including the vertical drilling technology, the high quality PDC bits, and the technology for drilling in compound salt formations are introduced. Taking Dongqiu 6 well as an example, complex drilling technologies in piedmont high and steep structure are discussed from the perspectives of key technologies and drilling process of compex wells. Application results show that these technologies solve the problems in high-speed, efficient, and safe drilling in piedmont high and steep structure of Tarim Oilfield.