摘要
针对UEP油田三开尾管固井中旋转尾管悬挂器出现的送入工具脱手失败的问题,分析了该地区三开尾管固井存在的裸眼段砂岩与页岩交替存在、井壁不稳定,钻井液密度高、悬浮稳定性差,环空间隙小、套管易贴边和尾管短轻、抗扭能力差等技术难点,提出了集内嵌卡瓦、顶部封隔、反向牵制、旋转、液压丢手功能于一体的牵制型旋转尾管固井技术和关键技术措施,在RN-1和GD-1井尾管固井施工中应用成功,同时也对该地区今后尾管固井施工提出了针对性的建议。
The running tool of the rotating liner hanger failed to release during the liner cementing operation of some wells in UEP oilfield.The difficulties during liner cementing operation are analyzed herein,including alternated sandstone and shale rocks at openhole section,borehole instability,high drilling fluid density and poor suspension,small annulus clearance,liner stuck to one side of the open hole,short and light liners,and low anti-torsion performance.A rotating liner hanger system with dove-tail slips,liner top packer,hold-down sub and hydraulic release tool is then introduced herein,as well as its critical technical parameters and key issues.It has been successfully applied in Wells RN-1and GD-1.Some specific advice regards the liner cementing operation in UEP oilfield is also put forward.
作者
郭朝辉
徐明会
孙文俊
GUO Zhaohui;XU Minghui;SUN Wenjun(Sinopec Research Institute of Petroleum Engineering, Dezhou, Shandong 253005,China;Shelfoil Petroleum Equipment & Services Co, Ltd.)
出处
《钻采工艺》
CAS
北大核心
2018年第6期30-33,126,127,共6页
Drilling & Production Technology
基金
国家科技重大专项"高压低渗油气藏固井完井技术"(编号:2016ZX0521005)
中国石化科技部攻关项目"深井尾管安全下入工具及配套工艺研究"(编号:P15016)联合资助
关键词
UEP油田
窄间隙
短轻尾管
旋转尾管悬挂器
牵制短节
UEP oilfield
small clearance
short and light liner
rotating liner hanger
hold-down sub
作者简介
郭朝辉(1980-),高级工程师,2003年毕业于江汉石油学院机械设计制造与自动化专业,2014年获中国石油大学(北京)机械工程专业工程硕士学位,德州大陆架石油工程技术有限公司副总经理,主要从事石油井下工具的研发与技术推广工作。地址:(253005)山东省德州市德城区新湖大街1226号,电话:13853451857,E-mail:gzh@shelfoil.com
