【摘要】 目的确定研究区储层敏感性特征,研究储层伤害机理,为保护储层提供可靠的依据。方法从敏感性实验分析入手,同时测量不同样品的敏感性及其物性参数,结合铸体薄片、压汞、扫描电镜等实验方法,从宏观和微观两个角度,分析储层敏感性与储层物性及黏土和碳酸岩含量之间关系。结果研究区速敏、水敏、酸敏特征均为无至弱,碱敏性特征为弱至中等偏弱。结论速敏、水敏、酸敏和碱敏与储层物性、黏土含量以及碳酸盐含量等参数之间具有明显的相关性关系。更多还原

【Abstract】 Aim To determine the character of reservoir sensitivity,and find the mechanism of reservoir damage and provide a reliable basis for reservoir protection.Methods Experiments were conducted on the sensitivity of different samples,their parameters and physical property respectively,combined with the analysis data of casting thin sections and SEM,so as to understand the affecting factors.The relations between the reservoir sensitivity and its physical property,the content of clay and carbonate,were analyzed from the aspects of macroscopic and microscopic view.Results The analysis shows that the characters of sensitivities are none to weak except alkali which is weak and medium to weak.Conclusion There is obvious correlation between sensitivity indexs of velocity,water,acid and alkali and reservoir physical properties,the content of clay and carbonate.更多还原