综合测井和地震资料描述岩性的蒙特卡洛法

Integration of Log Data and Seismic Data in Lithology Identification by Monte Carlo Method

申时新等：综合测井和地震资料描述岩性的蒙特卡洛法，测井技术，１９９６（４）２０，２６８～２７０。考虑了测井纵向分辨率高但横向分辨率低的特点，利用地震资料作为测井岩性外推过程的约束，对地下岩性进行描述。利用地震资料时，该方法考虑了地震信息的不确定性和模糊性，将地下岩性分布看作随机场的一个特定实现，利用ＭｏｎｔｅＣａｒｌｏ法对井孔以外的岩性进行横向模拟，能够给出储层岩性多种可能的图象。

hough vertical resolution of log data is higher, lateral lithologic variations can not be predicted accurately from them in areas of sparse wells. Seismic data can be used to help predict lateral lithologic variations, Because of the ambiguity and uncertainty of the seismic velocity information, Monte Carlo technique is used for numerically stochastic simulation of the spatial distribution of lithology in integrating log data and sesimic data, thus providing various lithologic images of the reservoir.