大偏移距三维水平井施工难点及优化设计  

Construction difficulties and optimization design of large offset 3D horizontal wells in Sulige Gasfield

作　　者：王崇军 高永伟 曹思阁 WANG ChongJun;GAO YongWei;CAO SiGe(Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co.,Ltd.;National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields;Drilling and Production Engineering Technology Research Institute of CNPC Chuanqing Drilling Engineering Co.,Ltd.;School of Petroleum Engineering,Southwest Petroleum University)

机构地区：[1]中国石油集团川庆钻探工程有限公司工程技术研究院 [2]低渗透油气田勘探开发国家工程实验室 [3]中国石油集团川庆钻探工程有限公司钻采工程技术研究院 [4]西南石油大学石油工程学院

出　　处：《低渗透油气田》2018年第2期71-72,76,共3页

摘　　要：研究分析了苏里格大偏移距三维水平井施工难点及原因,如常规施工控制难度大、施工进度慢造成井壁浸泡时间长、岩屑携带困难。结合实钻情况并运用钻井相关软件针对施工难点对苏里格多轮丛式平台井不同偏移距(不大于50m,50~100m、100~200m、200~500m、500~700m)水平井轨道设计进行了优化,提出了相应措施,可以有效降低钻井风险,提高机械钻速。This paper analyzes the construction difficulties and causes of the three-dimensional horizontal well with large offset in the Sulige gas field,such as the difficulty of conventional construction control,slow construction schedule caused long immersion time of well-wall,difficult to carry debris,etc.Based on the actual drilling situation and using the drilling related software,the various offset (≤50m,50-100m,100-200m,200-500m,500-700m)horizontal wells of cluster-well platform in the Sulige Gasfield was optimized,and corresponding measures were proposed.They reduce the frictional resistance and torque,and effectively prevent drilling risks.

关 键 词：偏移距 三维水平井 施工难点 优化设计 

分 类 号：TE243[石油与天然气工程—油气井工程]