物探与化探2024，Vol.48Issue(6)：1674-1683,10.DOI:10.11720/wtyht.2024.1453
基于同步挤压广义S变换的多尺度断裂刻画研究
Multi-scale fault characterization using synchrosqueezing generalized S-transform
陈珂磷 1文冉 1杨扬 1吴俐辉 2杨高建 2严海滔 2张奎2
作者信息
- 1. 四川长宁天然气开发有限责任公司,四川 成都 610000
- 2. 北京普瑞斯安能源科技有限公司,北京 100085
- 折叠
摘要
Abstract
Post-stack fault recognition is typically performed based on structural attributes,which,however,frequently exhibit unclear characterization of fault contacts and poor fault continuity.Deep learning can characterize middle-to large-scale faults accurately but has a limited capacity to characterize small-scale ones.This study developed a multi-scale fault characterization algorithm using amplitude gradient clutter based on synchrosqueezing generalized S-transform(SSGST).First,seismic data were decomposed into single-frequen-cy data volumes across different frequency bands in the time-frequency domain.Then,the clutter of the amplitude gradient vectors was computed based on the seismic data volumes of different frequency bands.Finally,multi-scale faults were characterized using seismic data volumes of different frequency bands.The results from both model simulations and practical data demonstrate that the amplitude gradient clutter property derived using SSGST provides can effectively characterize small-scale faults besides large-and medium-scale faults.关键词
叠后断裂/同步挤压广义S变换/振幅梯度凌乱性/多尺度断裂Key words
post-stack fracture characterization/synchrosqueezing generalized S-transform(SSGST)/amplitude gradient clutter/multi-scale fracture分类
天文与地球科学引用本文复制引用
陈珂磷,文冉,杨扬,吴俐辉,杨高建,严海滔,张奎..基于同步挤压广义S变换的多尺度断裂刻画研究[J].物探与化探,2024,48(6):1674-1683,10.
