钻探工程2025，Vol.52Issue(z1)：337-341,5.DOI:10.12143/j.ztgc.2025.S1.054
优快钻完井技术在古龙页岩油开发中的应用
Application of fast and efficient drilling and completion technology in Gulong shale oil
摘要
Abstract
The Gulong shale oil in the Songliao Basin is a core area for unconventional oil and gas reserve increase in China.It is characterized by well-developed high-quality source rocks,dense nanoscale pore-throat system,abnormally high formation pressure coefficients,and heterogeneous wettability.To address challenges including high wellbore instability,stringent trajectory control requirements,and high torque/drag control difficulty during drilling,we optimized and developed efficient drilling tools,built precise trajectory control models,and refined drilling parameters.We also developed a high-performance oil-based drilling fluid system with strong sealing for nano-pore and fracture formations and a resilient cement slurry system.By integrating these fast-drilling and completion technologies,we achieved efficient development.The average drilling speed increased by 29.5%,the success rate of drilling high-quality reservoirs in horizontal sections reached 90.26%,and the excellent cementing quality rate rose to 90%,ensuring stability and safety in shale oil horizontal well drilling.By establishing a learning curve to modify and improve the block-specific speed-up technical template timely,this study further promotes the speed-up of Gulong shale oil horizontal wells and accelerates the exploration and development.关键词
井壁稳定/优快钻完井技术/钻井周期/钻井提速/古龙页岩油Key words
wellbore stability/optimized&fast drilling and completion technology/drilling cycle/drilling rate improvement/Gulong shale oil分类
能源科技引用本文复制引用
陈子贺..优快钻完井技术在古龙页岩油开发中的应用[J].钻探工程,2025,52(z1):337-341,5.基金项目
中国石油天然气股份有限公司科学研究与技术开发项目"陆相页岩油钻井提速提质关键技术研究"(编号:2023ZZ15YJ05) （编号:2023ZZ15YJ05）
