适合于欠平衡钻井的油气藏筛选依据  

Reservoir screening basis for underbalanced drilling

作　　者：寇海成[1] 朱坤科[1] 吴建文[1] 

机构地区：[1]大港油田欠平衡钻井技术服务公司,天津大港300280

出　　处：《钻采工艺》2000年第5期22-24,31,共4页Drilling & Production Technology

摘　　要：欠平衡钻井技术可以降低地层损害、提高机械钻速 ,所以在世界范围内被逐渐采用。但是 ,欠平衡钻井技术并非适用于所有的油气藏。通过综合考虑欠平衡钻井过程中存在的潜在不利因素 ,分析了哪些油气藏适合采用欠平衡钻井 ,哪些油气藏不适合采用。同时 ,也指出了维持欠平衡钻井条件的技术和措施 ;以优化欠平衡钻井作业为依据 ,提出了油气藏的筛选步骤。Underbalanced drilling technology can increase ROP and decrease formation damage,so it is increasingly used worldwide.But,underbalanced drilling technology is not suitable for every reservoir.By considering the potential disadvantages to the underbalanced drilling process,the paper analyzes which reservoirs are suitable for underbalanced drilling and which ones are not.At the same time,it points out the techniques and measurements to maintain underbalanced drilling condition.Finally,it provides the screening process of reservoirs based on the optimizing underbalanced drilling technology.

关 键 词：欠平衡钻井 油气藏分析 连续性 筛选程序 

分 类 号：TE2[石油与天然气工程—油气井工程]