石油物探2025，Vol.64Issue(5)：899-909,11.DOI:10.12431/issn.1000-1441.2024.0050
基于梯度结构张量的构型反演方法
Configuration inversion based on gradient structure tensor:A case study of Maokou karst reservoir prediction in YB area,Sichuan Basin
摘要
Abstract
An inversion method of facies configuration based on gradient structure tensor is proposed for small-scale karst reservoirs with complex fracture-vug development and interstitial materials in the Maokou Formation,the Sichuan Basin.The workflow consists of three key steps:facies-related structural configuration characterization using structure attributes derived from gradient structure tensor and its eigenvalues,initial model building with facies-related petrophysical properties derived from the geologic model and log data,and stochastic inversion constrained by the reservoir configuration model for reservoir prediction.The case study shows that gradient structure tensor can effectively describe weak chaotic reflections of small karst caves,enabling precise karst pinpointing and extraction.Configuration modeling based on gradient structure tensor can accurately characterize karst reservoirs of different patterns.The configuration constraint facilitates quantitative analysis and prediction of karst reservoirs.关键词
梯度结构张量/构型建模/岩溶/储层预测Key words
gradient structure tensor/configuration modeling/karst/reservoir prediction分类
能源科技引用本文复制引用
陈超,潘蓓,陈会霞,张志宇..基于梯度结构张量的构型反演方法[J].石油物探,2025,64(5):899-909,11.基金项目
中国石化股份公司基础研究项目(P22159)资助. This research is financially supported by the Sinopec Basic Research Project(Grant No.P22159). （P22159）
