川西大邑地区气体钻井井壁稳定性评价研究  

Gas drilling well face stability evaluation study of western Sichuan Dayi area

作　　者：蒋晓红[1] 刘其明[1] 衡俊鹏[1] 

机构地区：[1]中国石化西南油气分公司工程技术研究院,四川德阳610008

出　　处：《石油地质与工程》2011年第2期95-97,137,共4页Petroleum Geology and Engineering

摘　　要：给出了川西大邑地区气体钻井井壁稳定性的评价方法及井周应力方程,引入"井径扩大系数"研究不同井径扩大率条件下地层坍塌压力变化规律,结合大邑地区钻井实际情况,探讨出该地区气体钻井井壁稳定性分布规律,最后对该地区的钻井设计提出了建议。In the article, the western Sichuan Dayi areagas drilling well face stability assessment method and thewell stress equation has been given, the bore hole diameterenlargement coefficient has been introduced to study formation collapsed pressure under different bore hole diameter enlargement degree. The Dayi area well drilling actual situationhas been unified to discuss the regional gas drilling hook wall stability distribution rule, finally put forward the proposal to this areas well drilling design.

关 键 词：大邑地区 气体钻井 井壁稳定 地层坍塌压力 井径扩大系数 

分 类 号：TE[石油与天然气工程]