利用地震正演模拟实现高保真AVO处理质量监控
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摘要
本文介绍了一种利用偶极声波和密度测井资料进行叠前道集正演,对实际地震处理道集振幅随偏移距距变化特征进行对比和监控的方法。通过采用实测偶极声波和密度测井资料,利用Zoeppritz方程及其近似公式计算井的叠前正演道集,选取沉积稳定的区域标志层,分析其截距和梯度属性。通过对比正演AVO道集和井旁实际偏移道集波组特征及AVO属性特征,达到检验处理过程和结果是否保幅的目的,实现了AVO特征定量监控。
This paper introduces a method comparing and controlling the changes of track amplitudes varying with displacements during processing seismic data,which applies dipole sonic logging and density logging to pre-stack forward track modeling.By using Zoeppritz function and its similar equations,the pre-stack forward track is measured in intercept and gradient attributes based on a stable sedimentary mark layer.Through comparison between forward AVO track,practical displacement track wave features by wells and AVO attributes,the amplitude is retained from processing and results,which achieves a quantitative control of AVO features.
This paper introduces a method comparing and controlling the changes of track amplitudes varying with displacements during processing seismic data,which applies dipole sonic logging and density logging to pre-stack forward track modeling.By using Zoeppritz function and its similar equations,the pre-stack forward track is measured in intercept and gradient attributes based on a stable sedimentary mark layer.Through comparison between forward AVO track,practical displacement track wave features by wells and AVO attributes,the amplitude is retained from processing and results,which achieves a quantitative control of AVO features.
引文
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[10]陈建阳,田昌炳,李胜利,等.相控储层地质建模在剩余油分布预测中的应用[J].资源与产业,2010,12(2):163-169
[2]Ruben M.用于AVO分析的地震数据约束处理流程和实例[J].石油物探译丛,1993,3:38-42
[3]Aki K,Richards P G.Quantitative seismology:Theory and methods[M].New York:W.H.Freeman Comparg,1980
[4]邹才能,张颖.油气勘探开发实用地震新技术[M].北京:石油工业出版社,2002
[5]高军.时频域球面发散与吸收补偿[J].石油地球物理勘探,1996,31(6):865-866
[6]凌云研究组.叠后相对保持振幅处理处理研究[J].石油地球物理勘探,2003,38(5):433-440
[7]凌云研究组.叠前相对保持振幅、频率、相位和波形的地震数据处理与评价研究[J].石油地球物理勘探,2004,39(5):541-552
[8]胡英,张研.改进陆上地震资料处理质量的监控方法[J].石油地球物理勘探,2006(6):28-32
[9]王连刚,李俊乾.地震技术在煤层气储层研究与物性预测中的应用[J].资源与产业,2010,12(2):158-162
[10]陈建阳,田昌炳,李胜利,等.相控储层地质建模在剩余油分布预测中的应用[J].资源与产业,2010,12(2):163-169
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