改进的贝叶斯迭代反演方法及其在白云岩致密储层识别的应用

马琦琦, 孙赞东, 杨柳鑫

Modified Bayesian iterative inversion method and its application to dolomite tight oil reservoirs prediction

Qi-Qi MA, Zan-Dong SUN, Liu-Xin YANG

图2 不同迭代过程中反演得到的横波阻抗反射系数(Rs)与理论值的对比 a—理论Rs;b—第一次迭代反演得到的Rs;c—第一次迭代反演得到的Rs与理论值之差;d—第二次迭代反演得到的Rs;e—第二次迭代反演得到的Rs与理论值之差;f—第三次迭代反演得到的Rs;g—第三次迭代反演得到的Rs与理论值之差

Fig.2 Comparison of inverted results of Rs in different iterations and theoretical data a—theory Rs;b—Rs obtained from the first iteration;c—the difference between the Rs obtained from the first iteration and the theoretical value;d—Rs obtained from the second iteration;e—the difference between the Rs obtained from the second iteration and the theoretical value;f—Rs obtained from the third iteration;g—the difference between the Rs obtained from the second iteration and the theoretical value