江55区块地震反射振幅异常因素分析及河道砂体预测

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英文篇名：Seismic Reflection Amplitude Anomaly Factor Analysis and the Prediction of Channel Sandbody in Block Jiang 55 中文刊名：石油天然气学报 英文刊名：Journal of Oil and Gas Technology 作者：么忠文 ; 刘兴冬 英文作者：YAO Zhong-wen ; LIU Xing-dong(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Institute of Sedimentary Geology ; Chengdu University of Technology ; Chengdu 610059 ; Sichuan ; China ; No.9 Oil Production Plant ; Daqing Oilfield Co Ltd ; CNPC ; Daqing 163853 ; Heilongjiang ; China) 中文关键词：中、弱振幅 ; 疏松薄互砂岩储层 ; 西部斜坡区江55区块 ; 地震振幅本质 ; 河道砂体 英文关键词：medium-weak amplitude ; unconsolidated thin interbred sandstone reservoir ; Block Jiang 55 in West Slope Area ; seismic wave amplitude essence ; river channel sand body 出版日期：2013-01-15 机构：成都理工大学"油气藏地质及开发工程"国家重点实验室;成都理工大学沉积地质研究院;中石油大庆油田有限责任公司第九采油厂; 年：2013 期：01 出版单位：石油天然气学报

摘要

松辽盆地北部西部斜坡区江55区块属于高孔、中高渗透砂岩储层,平均砂岩厚度3.2m。经统计,主力油层组SⅡ+Ⅲ2砂岩发育井点大多落在地震振幅属性平面图的中、弱振幅区域。针对疏松薄互砂岩储层中、弱振幅地震响应的特点,从褶积模型理论出发,分析了地震振幅本质,多方面探讨了该区振幅异常形成的原因,并对弱振幅河道砂体进行了预测。
Block Jiang 55 in the west slope of northern Songliao Basin belonged to high porosity and medium-high permeability sandstone reservoir with average sandstone thickness of 3.2m.Statistics indicates that the most of sandstone development wells in main Layer SⅡ+Ⅲ2 were located in medium-weak amplitude area of seismic amplitude attribute map.Aiming at the seismic response characteristics of unconsolidated thin interbed sandstone reservoir,weak amplitude river channel sand body is predicted by analyzing the essence of seismic wave amplitude and discussing the reason of amplitude anomaly in this area based on convolution model theory.

引文

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