【摘要】 传统的两点地质统计学随机模拟方法基于变差函数,无法再现复杂的地质结构,多点地质统计学利用空间多个点的组合模式来描述地质结构信息,更适合复杂结构地质体的模拟。首先介绍了多点地质统计学的基本概念和方法;然后提出了一种多数据联合约束的多点地质统计学随机模拟方法,并通过模型验证了方法的特点和有效性;最后以该方法为基础,联合训练图像、测井数据和地震反演数据,实现了多数据约束下的东营凹陷沙三段地层中三角洲浊积岩沉积区的岩相模拟,取得了较好的应用效果。更多还原

【Abstract】 Conventional two-point geostatistics(TPG)simulation algorithms,limited to the reproduction of two-point statistics,such as a variogram model,cannot reproduce complex geological structures.The emerging multiple-point geostatistics(MPG)can simulate complicated geological sedimentary characteristics using multiple-point relations.Firstly,basic concept and method of MPG are introduced in the paper.Secondly,a multiple data constraints stochastic simulation is proposed based on the existing algorithms,and its effectiveness is verified by model data.Finally,using training images,well logging data,and seismic inversion data,multiple data joint multiple-points geostatistics lithofacies simulation of Dongying delta is realized based on this algorithm.The proposed method can produce good results and is beneficial for further application.更多还原