涠洲油田甲酸盐钻完井液体系适用性评价研究

A Study on Applicability Evaluation of the Formic Drilling and Completion Fluid System in Weizhou Oilfield

李基伟 邱康 王治法 苏志波 梁土羡

LI Jiwei QIU Kang WANG Zhifa SU Zhibo LIANG Tuxian

中石化海洋石油工程有限公司, 上海 200120; 中国石化石油工程技术研究院, 北京 100101

SINOPEC Offshore Oilfield Services Company, Shanghai 200120, China; SINOPEC Research Institute Petroleum Engineering, Beijing 100101, China

针对涠二段井壁失稳及储层段保护问题，通过涠洲油田地层特性及钻井液性能室内评价研究，提出了甲酸盐钻井液体系作为涠洲油田开发井钻完井液，以实现钻完井液一体化，室内评价表明，该体系满足涠洲油田开发井复杂层段井壁稳定要求及储层段储层保护要求，适用于涠洲油田开发井钻完井施工。

In view of the instability in Wei2 member and the protection of reservoirs, studies on evaluation were done for the formation characteristics and drilling fluid performance in Weizhou oilfield. In order to realize the liquefaction of drilling and completion, the formic drilling fluid system was suggested as the drilling and completion fluid for the development well in Weizhou oilfield. The indoor evaluation shows that the system satisfies the requirements of the wellbore stability in the complicated layers of the development wells in Weizhou oilfield and the requirements on the protection of reservoirs, which is suitable for the drilling and completion of the development well in Weizhou oilfield.

https://doi.org/10.3969/j.issn.1008-2336.2019.02.092