摘要
页岩气藏作为一种清洁、高效的非常规资源,受到全世界的关注。而水平井钻完井技术和水力压裂技术更是页岩气开发技术的关键。文章综述了几种页岩气水平井的完井方法,包括欠平衡钻井技术、旋转导向钻井技术和控制压力钻井技术,介绍了其各自的优缺点、适用条件和国内外的应用实例。分析了现今页岩气水力压裂的几种主要压裂技术,如重复压裂、多级压裂、清水压裂和同步压裂等几种压裂技术的特点和适用性。并在此基础上,提出加强在页岩地质理论、精确导向与储层改造、含气特点与模拟等开发瓶颈方面的探索与研究等建议。
The shale gas reservoir has attracted worldwide attention as a clean and efficient unconventional resource. The drilling, completion and hydraulic fracturing techniques is the key of the shale gas development techniques for horizontal well. The paper introduces several well completion methods for the horizontal well of shale gas, not only includes under balanced drilling, rotary steering drilling and control pressure drilling techniques, but also their advantages, disadvantages, application conditions and case histories. It also analyzes the several major hydraulic fracturing techniques （re-fracturing, multiple stage fracturing, riverfrac treatment and synchronous fracturing） for shale gas development and their characteristics and applicability, Some proposals are put forward to further research the shale geological theory, the precision orientation and reservoir reconstruction, gas characteristics simulation and so on.
出处
《油气地球物理》
2013年第2期9-11,20,共4页
Petroleum Geophysics
关键词
页岩气
水平井
水力压裂
进展
shale gas, horizontal well, hydraulic fracturing and progress
