Three-dimensional space distribution stochastic simulation method and system of low-permeability lenticular body

• Main Authors: HARAFUCHI, LIU ZHENGBANG, LI HONGXING, LIU SHUANGMIN, WANG SICHEN, WENG HAICHENG
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; DETECTING MASSES OR OBJECTS; ELECTRIC DIGITAL DATA PROCESSING; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASURING; PHYSICS; TESTING

The invention discloses a three-dimensional space distribution stochastic simulation method and system for a low-permeability lenticular body. The method comprises the following steps: constructing a three-dimensional conceptual model of a research area; based on the geological survey report of the target area, determining the proportion of different types of lithology of the target area; determining horizontal direction continuity values and vertical direction continuity values of different types of lithology based on actual drilling data of the target area; and on the basis of the proportions, the horizontal direction continuity and the vertical direction continuity of different types of lithology, a Merson rotation algorithm is adopted, and the target area generates a random space position in the three-dimensional conceptual model. According to the random field method for representing the distribution continuity of the low-permeability mudstone lenticular bodies in different directions through different ty