试井解释地层大孔道技术研究  

The Technical Research of Well Test Interpretation on Macropore Path in Layers

作　　者：张静[1] 杨欢[1] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023

出　　处：《长江大学学报（自科版）（上旬）》2010年第3期533-535,共3页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

摘　　要：储层大孔道是在油田长期注水条件下油层内部形成的水流优势通道。结合试井理论,将注水井井口压降绘制成双对数曲线,用不同时间段对应的实测点所绘制的曲线与利用大孔道的试井理论解释模型形成的典型曲线相拟合,来判断地层是否存在大孔道。该方法已在油田现场得到很好的应用,用注水井井口压降资料进行试井解释可有效识别地层大孔道。Macropore path is advanced waterflow channel,which is formed by long-time waterflooding in oilfield development.Basing on the theory of well test,the pressure drop at the water injector wellhead can be drawn into a double logarithmic curve by matching the curve drawn with the real measured points vs different time intervals with the typical curve by the well test theoratical interpreting model,it can be determined whether or not there are macropore paths.This method is used in oilfields,which uses the data of pressure drop at the water injector wellhead to conduct well test analysis for effectively identifying macropore paths.

关 键 词：大孔道 试井理论 数学模型 典型曲线 

分 类 号：TE353[石油与天然气工程—油气田开发工程]