国内页岩储层钻井液技术研究进展

发布时间：2018-07-06 07:47

本文选题：页岩储层 + 钻井液技术　；参考：《钻采工艺》2017年05期

【摘要】：随着页岩气资源的大力开发,近年来页岩储层的钻井作业不断增加。水平井结合水力分段压裂技术是实现页岩油气高效开发的关键,在美国、加拿大、澳大利亚等国家得到广泛应用。然而页岩储层中的水平钻井作业会遇到频繁的井下复杂,如页岩固有的井壁稳定问题、微裂缝引起钻井液漏失问题、长水平段导致的摩阻扭矩过大和井眼净化问题。因此,开发页岩气要求钻井液具有较好的页岩抑制性、封堵能力、润滑性以及携岩能力,以克服钻井过程中可能遇到的问题。为此,文章调研了具有较好性能的油基钻井液、水基钻井液、防塌堵漏的纳米钻井液,并对近几年国内页岩油气开发中钻井液的成功应用情况进行了分析,以期为国内页岩储层的钻井液技术发展、安全钻井作业以及页岩气的高效开发提供参考。
[Abstract]:With the development of shale gas resource, drilling operation of shale reservoir is increasing in recent years. Horizontal well fracturing combined with hydraulic fracturing technology is the key to the efficient development of shale oil and gas, and has been widely used in the United States, Canada, Australia and other countries. However, horizontal drilling in shale reservoir will encounter frequent downhole complex problems, such as shale inherent wellbore stability problems, micro-fracture caused by drilling fluid leakage problem, the friction torque caused by long horizontal section and borehole purification problems. Therefore, the development of shale gas requires drilling fluid to have better shale inhibition, plugging ability, lubricity and rock carrying ability to overcome the problems that may be encountered in drilling process. Therefore, this paper has investigated the oil-base drilling fluid, water-based drilling fluid and anti-sloughing and plugging nano-drilling fluid with better performance, and analyzed the successful application of drilling fluid in domestic shale oil and gas development in recent years. In order to provide reference for the development of drilling fluid technology, safe drilling operation and high efficiency development of shale gas in China.
【作者单位】：中国石油西南油气田分公司工程技术研究院;页岩气评价与开采四川省重点实验室;中国石油川庆钻探工程有限公司钻采工程技术研究院;
【基金】：西南油气田公司项目“长宁-威远区块页岩气水平井水基钻井液体系评价方法现场试验”中部分研究内容,项目编号:20160302KS01
【分类号】：TE254

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