水包油近平衡钻井液在中生界地层的应用  

Application of O/W Near-Balanced Drilling Fluid in Mesozoic Stratum

作　　者：魏殿举[1] 王善举[2] 马文英[2] 史佩谦[2] 

机构地区：[1]中原石油勘探局钻井四公司,濮阳457321 [2]中原石油勘探局钻井工程技术研究院,濮阳457001

出　　处：《精细石油化工进展》2008年第4期16-19,共4页Advances in Fine Petrochemicals

摘　　要：在中生界地层,采用水包油钻井液体系实施近平衡钻井技术。室内实验结果表明,该钻井液体系具有较好的热稳定性和流变性,油水比为3:7时,具有较强的抗天然气和原油污染能力。在文23-40井的现场应用中,水包油近平衡钻井液性能稳定,能够满足中原油田中生界井段近平衡钻井求。Nearly balanced drilling technology using an O/W drilling fluid was applied to the mesozoic stratum. The laboratory research result showed the drilling fluid had good thermal stability and rheological characteristic. The drilling fluid with 3 ： 7 of the oil to water ratio gave a strong efficiency resisting natural gas and petroleum contamination. In field application of Wen 23 - 40 Well, the O/W near - balanced drilling fluid was stable and met the nearly balanced drilling requirement in the mesozoic stratum wells of Zhongyuan Oilfield.

关 键 词：钻井液 近平衡钻井 中生界地层 水包油体系 防塌 

分 类 号：TE254[石油与天然气工程—油气井工程]