储集层应力敏感与污染的效应分析

Analysis on the Effects of Stress Sensitivity and Formation Pollution

根据储集层应力敏感试验数据,分析了储集层应力敏感的特征,并与储集层污染表皮效应进行了对比分析,指出表皮系数中包含“应力敏感表皮”。同时储集层应力敏感评价对试油压差的设计、生产压差的控制有指导意义。

Based on stress sensitivity test data of cores from formation testing, the characteristics of stress sensitivity are analyzed and correlated with the skin effect of pollution, it is pointed out that the“stress sensitivity skin”is included in skin factor, and at the same time, the formation evaluation using the stress sensitivity can be used to instruct the design of pressure difference in formation test and the control of production pressure difference.