叠前道集优化处理及其在AVO分析中的应用  

Optimized Processing of Pre-Stack Gathers and Its Application in AVO Analysis

作　　者：李远娟 王泽胜[2] 阎建国[1] 吴杰[1] 闫小伟[1] 徐松[1] 

机构地区：[1]成都理工大学地球物理学院,成都610059 [2]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《新疆石油地质》2016年第4期479-483,共5页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(41174114)

摘　　要：以叠前道集的保幅处理为核心,建立了一个针对实际地震资料的道集优化处理流程,对叠前共反射点道集进行优化处理,利用反Q滤波方法补偿能量损失、谱均衡法校正子波拉伸畸变以及波形匹配法消除剩余时差。将所建立的道集优化处理流程应用于渤海湾盆地某碳酸盐岩潜山储集层的AVO分析中,取得了良好的效果。表明道集优化处理技术可以更好地突显地下地层的AVO响应特征。Focusing on amplitude-preserving processing, the authors establish a gather optimization processing procedure of actual seismic data to optimize pre-stack common-reflection-point （CRP） gathers, by which energy loss compensition can be made using inverse Q filtering, wavelet stretch distortion correction can be made by spectrum equilibrium, and residual moveout removing will be realized by wave-form matching approach, and good effects have been gained after the optimized procedure was applied to AVO analysis of carbonate buried-hill reservoirs in Bohai Bay basin. This paper indicates that the optimized gather processing technology can better highlight the AVO response characteristics of subsurface strata.

关 键 词：共反射点道集 优化处理 保幅处理 AVO异常 能量补偿 子波拉伸畸变 剩余时差 

分 类 号：P631.443[天文地球—地质矿产勘探]