陇东X平台页岩油水平井减摩降阻配套技术研究与应用  

Research and Application of Drag Reduction Techniques for Drilling of Large-Offset Shale Horizontal Wells on Longdong X Platform

作　　者：李晓明 倪华峰 苏兴华 詹胜 许祥见 LI Xiaoming;NI Huafeng;SU Xinghua;ZHAN Sheng;XU Xiangjian(Changqing Drilling Company,CNPC Chuanqing Drilling Engineering Company Limited,Xi’an,Shaanxi 710018,China;Changqing Downhole Technology Operation Company,CNPC Chuanqing Drilling Engineering Company Limited,Xi’an,Shaanxi 710018,China)

机构地区：[1]中国石油集团川庆钻探工程有限公司长庆钻井总公司,陕西西安710018 [2]中国石油集团川庆钻探工程有限公司长庆井下技术作业公司,陕西西安710018

出　　处：《西安石油大学学报（自然科学版）》2023年第3期70-74,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：中国石油天然气集团科学研究与技术开发项目“深井与水平井提速提效技术集成与示范:长庆致密油气一趟钻及套管压裂技术”(2018E-2108-4)。

摘　　要：为降低陇东大偏移距页岩油长水平段钻井中管柱摩阻,提高钻井时效,在前期井眼轨道优化设计、钻井液体系优化的基础上,强化了基于轨道优化的钻具组合优选、钻柱扭摆滑动钻进,应用自研的钻井液信息技术智能分析系统实现了事故复杂预警和实时钻井液性能快速调整辅助决策,形成了陇东大偏移距页岩油水平井特色的减摩降阻配套技术。理论分析和现场实测摩阻对比分析表明,系列配套技术的实施,减摩降阻效果明显,提高了钻井时效。In order to reduce the frictional resistance of drill string in the drilling of Longdong shale oil horizontal wells with long horizontal section and large offset and improve drilling efficiency,based on the optimization design of the wellbore trajectory and drilling fluid system in the early stage,BHA optimization was improved based on hole profile design,"swift+slipping"drilling technology was applied in hole trajectory control,and to use the self-developed"intelligent drilling fluid information analysis system"gives out the real time warning of downhole troublesome/accident to help mud engineer fast adjusting the performance of drilling fluid from the system's assistant decision-making,and a matching technology for reducing frictional resistance in the drilling of Longdong shale oil horizontal wells with long horizontal section and large offset was formed.The comparison and analysis of theoretical analysis and on-site measured friction resistance shows that the application of a series of supporting technologies has significantly reduced the frictional resistance,and improved drilling efficiency.

关 键 词：减摩降阻 大偏移距 页岩油 钻井液 三维水平井 

分 类 号：TE249[石油与天然气工程—油气井工程]