石油钻采工艺Issue(1)：18-21,4.DOI:10.13639/j.odpt.2014.01.005
川西首口页岩气水平井钻井技术
Drilling technology for the ifrst shale gas horizontal well in West Sichuan
刘忠飞 1何世明 1全家正 2周回生 2丁俊选2
作者信息
- 1. 西南石油大学石油工程学院18，四川成都 610500
- 2. 中石化西南油气分公司工程监督中心，四川德阳 618000
- 折叠
摘要
Abstract
XYHF-1 well is the ifrst shale gas prospecting horizontal well in west Sichuan. However, there are many dififculties in its drilling process, such as the low ROP, dififculty in controlling the well body quality, dififculty in selection of drilling lfuid, high risk of well control and poor stability of well wall. This paper mainly elaborates the key drilling technologies and application effects, such as optimizing well structure, controlling wellbore track, optimizing drilling tools, safely drilling and reservoir protecting technology based on the analysis of drilling dififculties. At the same time, this paper brielfy introduces application of some new technologies in this well, such as rotary guide drilling, oil-based drilling lfuid and sleeve cementing techniques. The drilling cycle time is 253.17d for full hole, average ROP is 1.6m/h (including the pilot hole), the enlargement rate of full hole diameter is below 12%, and the maximum well devia-tion of the upper part is 0.87°, the construction effect is good. The application results show that reasonable well structure and borehole trajectory design is the basic premise of smooth drilling of shallow horizontal wells; and strengthening the prediction of friction and torque and using safety measures and good performance drilling lfuids are the important guarantee for the safety drilling. The successful ifnish drilling of this well provides practical experience for similar wells.关键词
页岩气/水平井/钻井技术/井眼轨迹/XYHF-1井Key words
shale gas/horizontal well/drilling technology/wellbore track/well XYHF-1分类
能源科技引用本文复制引用
刘忠飞,何世明,全家正,周回生,丁俊选..川西首口页岩气水平井钻井技术[J].石油钻采工艺,2014,(1):18-21,4.
