石油钻采工艺Issue(2)：26-30,5.
苏76-1-20H井钻井技术
Drilling technology for Well Su76-1-20H
摘要
Abstract
To improve the development efficiency of low porosity and low permeability gas reservoirs, A long lateral horizontal well was drilled in Sulige gas field, which is Well Su76-1-20H. Based on the borehole structure and wellbore trajectory design for the well, the difficulties were proposed, which were long lateral, large friction torque, hard trajectory control, small wellbore size, high circula-tion pump pressure, difficult wellbore cleaning treatment, wellbore collapse, drilling tool deformation, technical casing wearing, and so on. The key techniques and application effect were illustrated detailed from the viewpoint of trajectory control, friction torque predic-tion, geosteering technique, drilling fluid technique, wellbore repairing technique, and complex accident prevention. The well creates the record of the longest horizontal section on land within CNPC, with the horizontal length of 2 856 m, and safety and smooth drilling process, which proves important guiding role for efficiently develop low porosity and low permeability oil and gas fields.关键词
长水平段水平井/轨迹控制/摩阻扭矩预测/水力振荡器/苏里格气田Key words
long lateral horizontal well/trajectory control/friction torque prediction/hydro-oscillator/Sulige gas field分类
能源科技引用本文复制引用
王先洲,蒋明,邓增库,夏景刚,王保军,刘从胜..苏76-1-20H井钻井技术[J].石油钻采工艺,2013,(2):26-30,5.基金项目
中国石油天然气集团公司重点科技攻关项目“小井眼钻完井和增产改造一体化新技术”(编号:2010D-2409-39)的部分成果 （编号:2010D-2409-39）
