AFF方程在砂岩储层中的应用及意义

Application and Significance of AFF Equation in Sandy Reservoir Research.

AFF(声波地层因素 )方程是利用声波时差资料求取地层孔隙度的一种有效的解释模型。在对AFF方程和砂岩骨架进行理论分析的基础上 ,利用研究区储层砂岩的实际资料对AFF方程进行了刻度 ,确定了方程的地区适用参数。所建立的AFF孔隙度解释方程 ,与普通的统计回归方法相比 ,既提高了解释精度 。

AFF (acoustic formation factor) equation is an effective porosity interpretation model using sonic logging data. Based on theoretical analysis, AFF equation was scaled by real data of sandy reservoir in the researched area, and the suitable parameters for this equation were obtained. Compared with the general statistic regression methods, this equation not only improves the interpretation precision, but also has more reasonable geological significance.