长庆油田致密气藏超长水平段水平井钻完井技术  

Drilling and Completion Technology of Tight Gas Reservoir Horizontal Well with Super-long Horizontal Laterals in the Changqing Oilfield

作　　者：谢江锋 段志锋[1,2] 欧阳勇[1,2] 解永刚[1,2] 吴学升 蒙华军[1,2] 思代春 XIE Jiang-feng;DUAN Zhi-feng;OUYANG Yong;XIE Yong-gang;WU Xue-sheng;MENG Hua-jun;SI Dai-chun(Oil&Gas Technology Research Institute of PetroChina Changqing Oilfield Company,Xi'an 710021,China;State Engineering Laboratory of Low-permeability Oil&Gas Field Exploration and Development,Xi'an 710021,China)

机构地区：[1]中国石油长庆油田公司油气工艺研究院,西安710021 [2]低渗透油气田勘探开发国家工程实验室,西安710021

出　　处：《科学技术与工程》2023年第31期13332-13339,共8页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05044)。

摘　　要：超长水平段水平井在致密气开发过程中,可以增加渗流面积,为致密气藏有效开发提供保障。针对超长水平井钻井过程中裸眼段长、井壁稳定性差、轨迹控制困难、水平段堵漏难度大和完井套管下入困难等技术难题,通过攻关井眼轨迹控制和优化技术,优选旋转导向工具,研发高性能水基钻井液,优化漂浮下套管技术,形成致密气超长水平段水平井钻完井技术。靖51-29H1井完钻井深8528 m,水平段长5256 m,创造亚太地区最长水平段记录。表明致密气藏超长水平段水平井钻井技术可满足长庆油田致密气田开发需求,也为中国其他超长水平段水平井钻井提供了参考依据。In the process of tight gas development,ultra-long horizontal wells can increase the seepage area and provide guarantee for the effective development of tight gas reservoirs.In view of the technical problems such as long open hole section,poor wellbore stability,difficult trajectory control,difficult plugging in horizontal section and difficult running of completion casing in the drilling process of ultra long horizontal well,through tackling key problems of wellbore trajectory control and optimization technology,rotary steering tools were optimized,researching high-performance water-based drilling fluid,and floating casing running technology was matched to form the drilling and completion technology of ultra long horizontal well in tight gas.The drilling depth of well Jing 51-29H1 is 8528 m and the horizontal section is 5256 m long,seting a record for the longest horizontal section in the Asia-Pacific region,indicating that the ultra long horizontal section horizontal well drilling technology of tight gas reservoir can meet the development needs of tight gas field in Changqing Oilfield,and also provides a reference for the drilling of other ultra-long horizontal sections in China.

关 键 词：致密气 水平井 超长水平段 轨迹控制 井眼清洁 

分 类 号：TE242[石油与天然气工程—油气井工程]