物探与化探2024，Vol.48Issue(6)：1653-1663,11.DOI:10.11720/wtyht.2024.0059
基于稀疏约束频率域抛物线Radon变换的波场分解
Wavefield decomposition based on sparse-constrained parabolic Radon transform in the frequency domain
摘要
Abstract
Multiple types of non-layered and irregular hydrocarbon reservoirs have been found in the deep carbonate strata within the Tarim Basin.These carbonate reservoirs,different from layered reservoirs,are geological bodies with limited lateral bodies in at least one direction.The observed seismic reflected wavefield is a composite field composed of reflected and diffracted(scattered)waves formed by layered strata and non-layered and irregular geological bodies.The three types of wavefields exhibit different morphological characteristics in different datasets.Based on the differences in wavefield morphology,this study,using a technique for separating lay-ered and random wavefields based on an image-guided,sparse-constrained parabolic Radon transform in the frequency domain,decom-posed high signal-to-noise-ratio data of complex reflected wavefields,which had undergone migration processing or not,into a reflected wavefield with infinite lateral extent and a diffracted(scattered)wavefield of irregular geological bodies with limited lateral extent.This technique provides a foundation for the direct prediction and investigation of irregular reservoirs and has been successfully applied in both the Tarim and Ordos basins.关键词
波场分解/非规则储集体/缝洞体/储层预测/拉东变换Key words
wave field decomposition/irregular reservoir/vuggy-fractured body/reservoir prediction/Radon transform分类
天文与地球科学引用本文复制引用
张永升,张荣,樊易,张安家,李英才..基于稀疏约束频率域抛物线Radon变换的波场分解[J].物探与化探,2024,48(6):1653-1663,11.基金项目
中石化科技部项目"超深碳酸盐岩断控储集体地震波场特征及反演研究"(P22147) （P22147）
