石油钻采工艺Issue(3)：20-22,3.DOI:10.13639/j.odpt.2014.03.005
半潜式钻井平台水平井裸眼侧钻技术
Sidetracking technology for horizontal open hole on semi-submersible drilling platforms
罗鸣 1顾纯巍 1杜威1
作者信息
- 1. 中海石油 中国 有限公司湛江分公司，广东湛江 524057
- 折叠
摘要
Abstract
Sidetrack with cement plug is a drilling technology that dills a new wellbore after placement of cement plug in the origi-nal open hole. Due to unfavorable oil indications of the reservoir encountered by Ø215.9 mm wellbore, a horizontal development well located in Wenchang Oilifeld was sidetracked after placing cement plug in the openhole. In order to overcome such dififculties such as large depth of sidetrack point, high formation strength, large heaving of semi-submersible drilling platform, etc., this sidetracking opera-tion was successfully completed by using short gage PDC bit with strong side attacking ability and rotating steering tool Power Drive to dill the sidetrack hole, using sliding groove, creating steps and controlled drilling to control the well trajectory, and using cuttings logging and near bit inclination to monitor the realtime sidetracking job. The successful execution of this sidetracking job, the smooth well trajectory and the successful runing of subsequent sand-control screens, provide useful references for the sidetracking operations for horizontal open hole from semi-submersible drilling platform in the future.关键词
半潜式钻井平台/注水泥塞/水平井/裸眼侧钻Key words
semi-submersible drilling platform/cementing plug/horizontal well/open hole sidestrack分类
能源科技引用本文复制引用
罗鸣,顾纯巍,杜威..半潜式钻井平台水平井裸眼侧钻技术[J].石油钻采工艺,2014,(3):20-22,3.
