油气藏评价与开发 >
2021 , Vol. 11 >Issue 3: 356 - 364
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.03.010
渝东南地区页岩气钻完井技术主要进展及发展方向
收稿日期: 2020-12-02
网络出版日期: 2021-06-24
基金资助
“十三五”国家科技重大专项“彭水地区常压页岩气勘探开发示范工程”(2016ZX05061);中国石化“十条龙”项目“南川复杂构造带页岩气勘探开发关键技术研究”(P19017-3);中国石化科技开发部项目“南川工区页岩气钻井提速提效技术研究”(P20012)
Main progress and development direction of shale gas drilling and completion technologies in southeastern Chongqing
Received date: 2020-12-02
Online published: 2021-06-24
渝东南地区是国内页岩气最早实现商业开发的地区。围绕该区钻完井技术方面已取得的主要进展,梳理了井身结构优化技术、针对浅表恶性漏失层的钻井配套技术、低成本控压钻井技术、地质工程一体化井眼轨迹控制技术、钻头优选技术、低油水比油基钻井液技术、强化钻井参数提速技术、易漏储层固井技术、防止环空带压的完井技术和流水线工厂化钻井技术等10个方面的关键技术。针对该地区在钻完井方面尚存在的不足,提出了钻井装备自动化、钻井参数强化、水基钻井液、复杂情况处理、小井眼钻完井、长水平段水平井等6个方面的发展方向,以期对渝东南地区钻完井技术水平和勘探开发效益的提高起到推动作用。
王彦祺 , 贺庆 , 龙志平 . 渝东南地区页岩气钻完井技术主要进展及发展方向[J]. 油气藏评价与开发, 2021 , 11(3) : 356 -364 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.03.010
Southeastern Chongqing is the first area to realize commercial development of shale gas in China. According to the main development progress of drilling and completion technologies in this area, 10 key technologies are summarized, which are, casing program optimization, severe loss control in shallow layers, low-cost managed pressure drilling, well trajectory control based on geology-engineering integration, bit selection, oil-based drilling fluid with low oil-water ratio, ROP enhancement through drilling parameter optimization, cementing technology for leakage wells, completion technology for preventing trapped pressure in annulus, and factory-like drilling technology. In order to make up for the deficiency in drilling and completion technologies, six directions of further research are proposed, which are, drilling equipment automation, drilling parameter enhancement, water-based drilling fluid, complex situation treatment, small hole drilling and completion, and shale gas drilling with long horizontal section, which aim to improve the drilling and completion technologies and the exploration and development profits in southeastern Chongqing.
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