摘要
煤层气的开发已成为现今的热点。针对延川南煤层气区块的地质特点,其主力煤层是山西组2号煤层,具有较好的盖层封闭性,有利于煤层气储存。该文以延平1水平联通井的实际工程研究和优化设计工作为基础,从该井的井眼轨迹、井身结构、井壁的稳定性评价、地质导向仪器及设备等几个方面,对"U"型水平连通井技术在延川南地区煤层气开发的适应性进行了研究、探讨。通过EM-MWD和RMRS随钻测量仪器的结合,及时控制井眼轨迹,证明在该区施工型水平连通井是可行的,为今后延川南煤层气水平联通井钻井施工起到了一定的借鉴作用。
The development of CBM has come into the spotlight today. Considering the geological characteristics of Yanchuannan CBM block, it is found that its main coalbed is 2# coalbed of Shanxi group, which has the covers with good closure condition to facili- tate CBM storage. Based on the actual engineering research and optimization of design work of Yanpingl horizontal connected well and through the introductions of borehole trajectory, well structure, well stability and geosteering instruments ＆ equipments, this pa- per studied and discussed about the adaptability of ＇U＇ style horizontal connected well technology applied in CBM development in Yanchuannan area. By combining EM-MWD with RMRS logging-while-drilling testing instrument, it becomes possible to control borehole trajectory in time so that the feasibility of operational horizontal connected wells in the area can be proved. This paper pro- vided good references for the future drilling operation of CBM horizontal connected wells in Yanchuannan area.
出处
《油气藏评价与开发》
2011年第6期71-75,共5页
Petroleum Reservoir Evaluation and Development
关键词
水平连通
轨道
井身结构
绒囊钻井液
电磁波
强磁连通仪
horizontal connected, trajectory, well structure, fuzzy-ball drilling fluid, electromagnetic wave, magnetic connectioninstrument
作者简介
印中华（1970-），男，助理工程师，从事钻井新工艺新技术推广研究工作。
