卫281 井双层组合套管试验

Test of Dual Combined Casing for Well 281 in Weicheng Oilfield

赵　军,谢慧华,张凤文

Zhao Jun,Xie Huihua,Zhang Fengwen

中原石油勘探局工程监督中心

Engineering Supervision Center , Zhongyuan Petroleum Exploration Bureau ,Henan 457001 , P. R. China

针对地下盐膏层蠕变导致油层套管变形、破漏,造成井况恶化的特点,中原油田在卫281 井首次采用了华北油田钻井工艺研究所设计的双层组合套管固井工艺,实践证明该工艺对防止井况恶化是行之有效的。文中主要介绍了卫281 井双层组合套管的施工操作程序。通过这次成功的试验,总结了双层组合套管固井施工的工艺方法。

Aiming at the casing deformation ,fracturing and leak resulting from formation creep , leading to well status deteriorate , the cementing technique of dual combined casings , designed by Drilling Process Research Center in Huabei Petroleum Administration Bureau ,was first used in Well 281 in Weicheng Oilfield. This paper present s the details of const ruction of the Well 281 , the result s of application indicates the technology is effective to prevent the deteriorate of well status.