裂缝储层地震方位AVO正演模拟研究及应用

英文篇名：Azimuthal AVO Forward Model for Fractured Reservoirs and Its Application
中文刊名：石油天然气学报
英文刊名：Journal of Oil and Gas Technology
作者：毛宁波 ; 谢涛 ; 杨凯 ; 金明霞
英文作者：MAO Ning-bo ; XIE Tao(Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University) ; Ministry of Education ; Jingzhou 434023 ; Hubei ; China)YANG Kai ; JING Ming-xia(Geophysical Development Department ; China Offshore Oilfield Service Co. Ltd. ; Tanggu 300451 ; Tianjin ; China)
中文关键词：地震勘探 ; 各向异性 ; 裂缝 ; HTI介质 ; 方位AVO ; 正演
英文关键词：seismic exploration ; anisotropy ; fracture ; HTI ; azimuthal AVO ; forward modeling
出版日期：2008-10-15
机构：油气资源与勘探技术教育部重点实验室(长江大学);中海油田服务有限公司物探事业部;
年：2008
期：05
出版单位：石油天然气学报

摘要

一些储层在发育裂缝时,AVO特征常表现为方位各向异性。研究了4类裂缝储层在发育含流体裂缝和含气裂缝时的方位AVO特征。研究表明,4类裂缝储层各个方位的AVO特征有差异,但基本AVO特征不会改变;同种类型的储层发育含流体裂缝和含气裂缝时,方位AVO特征也有差异。最后,用研发的方位AVO模拟软件对某工区A井进行了正演。正演结果表明,不同方位AVO特征可以识别裂缝发育的方位;大炮检距的叠前数据有利于该工区的叠前裂缝检测。
AVO presented azimuthal anisotropic during reservoir growth.Fractures containing fluid and gas,which were induced during the growth of 4 types of reservoirs were studied.It shows that AVO characters of each azimuth of the 4 types are different,but AVO characters are not changed.The azimuthal AVO characters of fractures containing fluid and gas in the same reservoirs are different.The AVO model software is used for a forward modeling in Well A in an area.The result shows that AVO characters in different azimuths can be used for recognizing fracture growing azimuth,the big offset pre-stack data are beneficial for detecting fractures in the area.

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