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东海油气田中、深层气藏AVO模拟与识别方法研究及应用
海洋石油
2013年 33卷 第1期
阅读：136
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Title
The Study and Application of AVO Modeling and Prediction of Middle and Deep Gas Reservoirs in Oilfields of East China Sea
Authors
TU Qicui
HE Xianke
SONG Chunhua
LIU Jiang
单位
中海石油(中国)有限公司上海分公司研究院, 上海 200030
Organization
Shanghai Branch of CNOOC Ltd., Shanghai 200030, China
摘要
AVO是研究地震CRP道集振幅随炮检距变化规律的技术,能够从叠前地震数据中获取与地层岩性和含油气性相关的地震属性体,进而进行含气预测,是一门适应勘探开发发展需要的地震技术。东海X油气田气藏富集,同时含水层也广泛分布,各类AVO现象共存,通过利用AVO技术,寻找差异,可以有效区分气层与水层。
Abstract
AVO is a technology for the study on change regularity of CRP gathers with geophone offset, by which the seismic at-tributes related with lithology and HC existance can be acquired from prestack seismic data, and gas bearing conditions can be pre-dicted. Thus, AVO is a seismic technology which is suitable for HC exploration and development. There are lots of gas reservoirs in the oil field of East China Sea, and also lots of water-layers. With AVO analyzing technology, the difference between gas and water bearing layers can be found, and gas and water bearing layers can be identified.
关键词：
AVO;
CRP道集;
偏移距;
岩性;
含气预测;
流体替换;
气层;
Keywords:
AVO;
CRP gathers;
offset;
lithology;
gas prediction;
fluid replacement;
gas layer;
DOI
https://doi.org/10.3969/j.issn.1008-2336.2013.01.049
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