低渗透油气藏高效开发钻完井技术研究主要进展

Key Achievement of Drilling & Completion Technologies for the Efficient Development of Low Permeability Oil and Gas Reservoirs

路保平 丁士东 何龙 庞伟

LU Baoping DING Shidong HE Long PANG Wei

页岩油气富集机理与有效开发国家重点实验室，北京 100101 中国石化石油工程技术研究院，北京 100101 中国石化西南油气分公司，四川成都 610041

State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing, 100101, China Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China Sinopec Southwest Branch, Chengdu, Sichuan, 610041, China

低渗透油气藏是当前国内外油气勘探开发的重点领域，以钻完井为核心的工程技术是实现低渗透油气藏高效开发的关键。“十三五”期间，针对川西、济阳坳陷等低渗透油气藏勘探开发中的技术难题，围绕钻井提速、增效和降低工程成本，开展了低渗透油气藏高效开发钻完井技术攻关研究，在175 ℃高温随钻测量系统、近钻头伽马成像技术、新型钻井提速工具、全过程储层保护技术、长效密封固井技术、精细分段完井技术等方面取得重大进展，初步形成了低渗透油气藏高效开发钻完井关键技术，并在济阳坳陷盐222区块、川西中江低渗透气田进行了现场应用，降本增效效果显著，为形成低渗透油气藏高效开发钻完井配套技术，实现不同类型低渗透油气藏高效开发奠定了坚实基础。

The development of low-permeability reservoirs has become the key area of oil and gas exploration and development, and the drilling & completion-based engineering technologies are the key elements for the efficient development of low-permeability oil and gas reservoirs. During the " Thirteenth Five-Year Plan” period, to address technical challenges encountered in the exploration and development of low-permeability reservoirs such as the western Sichuan and Jiyang Depression, studies on key technologies for the high-efficiency development of low-permeability reservoirs have been conducted, which mainly focused on drilling speed-up, efficiency enhancement and engineering cost reduction. It has lead to significant progress on the aspects of 175 °C MWD system, near-bit gamma imaging system, new drilling speed-up tools, full-process reservoir protection technology, long-term sealing cementing technology, fine staged completion technology, etc.. Accordingly, key drilling & completion technologies for the high-efficiency development of low-permeability oil and gas reservoirs have been established preliminarily, and the field applications in Block Yan 222 of Jiyang Depression and the low-permeability Zhongjiang Gas Field in the western Sichuan achieved stellar results including remarkable cost reduction and efficiency enhancement, which have laid a solid foundation for efficient development of drilling & completion technologies and efficient exploration of various low-permeability reservoirs.

国家科技重大专项“低渗透油气藏高效开发钻完井技术”（编号：2016ZX05021）部分研究内容

https://doi.org/10.11911/syztjs.2019027