西北地质2024，Vol.57Issue(2)：59-66,8.DOI:10.12401/j.nwg.2023016
走滑断裂带三维地震特征增强处理与描述研究
Research on 3D Seismic Feature Enhancement Processing and Description of Strike Slip Fault Zone
摘要
Abstract
Due to the small longitudinal fault displacement and weak ultra-deep seismic signal of strike slip fault zone,the conventional pre-stack depth migration seismic data cannot meet the requirements of fine descrip-tion of ultra-deep fault zone.In order to improve the imaging accuracy of the fault zone and guide the interpreta-tion,description,evaluation and deployment of the strike slip fault zone,taking the three-dimensional seismic data of the development area of the strike slip fault zone in Shunbei area as an example,a set of seismic feature enhancement processing and description technology of the strike slip fault zone is established,which is mainly based on the fidelity and amplitude preserving optimization processing,spectrum restoration and resolution im-provement processing,spectrum decomposition processing,and frequency domain multi-scale fault detection processing technology,This technology combination effectively widens the frequency band of seismic data,im-proves the resolution of seismic data,improves the imaging accuracy of ultra-deep strike slip fault zone,and pro-vides a high-quality data foundation for the fine interpretation,description and evaluation,and three-dimension-al carving of ultra-deep strike slip fault zone.Combined with the previous research results in Shunbei area,the comprehensive use of spectrum recovery to improve the resolution processing,spectrum decomposition process-ing,frequency domain fault detection data,the prediction effect of fault zone characteristics and fault reservoir relationship at different scales is better,which provides technical support for further evaluation of fault zones and deployment of well locations.关键词
超深走滑断裂带/保真保幅优化处理/频谱恢复提高分辨率处理/频谱分解处理/断裂带检测Key words
ultra deep strike slip fault zone/fidelity and amplitude optimization/spectrum recovery im-proves resolution processing/spectrum decomposition processing/fault zone detection分类
天文与地球科学引用本文复制引用
龚伟,吕海涛,林新,李弘艳,张荣..走滑断裂带三维地震特征增强处理与描述研究[J].西北地质,2024,57(2):59-66,8.基金项目
中石化西北油田分公司项目"顺北4号断裂带规模储集体预测与井轨迹优化设计研究"(KJ202005)资助. （KJ202005）
