技术方法

AVO 技术在铁匠炉地区油气检测中的应用

  • 李继亭 ,
  • 曾溅辉 ,
  • 吴嘉鹏
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  • 1.中国石油辽河油田公司; 2.辽河石油职业技术学院; 3.中国石油东方地球物理公司辽河物探分公司
徐丽英,1969 年生,女,高级工程师,从事石油地质综合研究及地震技术方法研究工作。地址:(124010)辽宁省盘锦市兴隆台 区石油大街95 号辽河油田勘探开发研究院盆地所东区室。电话:(0427)7821535。E-mail:yyllxx222@sina.com.cn

网络出版日期: 2011-10-20

Application of AVO technology to hydrocarbon detection in Tiejianglu area

  • LI Jiting ,
  • ZENG Jianhui ,
  • WU Jiapeng
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  • 1. Liaohe Oilfield Company, PetroChina, Panjin 124010, China; 2 . Liaohe Petroleum Technology College, Panjin 124103, China; 3. Liaohe Geophysical Prospecting Company, BGP Inc. of CNPC, Panjin 124010, China

Online published: 2011-10-20

摘要

勘探开发实践证实,铁匠炉斜坡带沙河街组岩性-地层油气藏油水关系复杂。由于叠前相对振幅 保持处理的地震资料比叠后地震资料包含更丰富的岩性和流体信息,因此利用叠前地震资料进行油气检 测的敏感性更强。该文主要基于Zoeppritz 方程的Aki & Richards 和Shuey 近似公式,利用叠前地震资料 开展了油气检测方面的研究,即在进行AVO 正演模拟确定流体响应的AVO 异常类型基础上,提取过井 点的角道集并识别AVO 异常,最后对AVO 反演的属性体进行解释,识别油气异常分布区域。该方法很 好地指导了铁匠炉地区的勘探部署工作。

本文引用格式

李继亭 , 曾溅辉 , 吴嘉鹏 . AVO 技术在铁匠炉地区油气检测中的应用[J]. 岩性油气藏, 2011 , 23(5) : 73 -77 . DOI: 10.3969/j.issn.1673-8926.2011.05.015

Abstract

The lithologic-stratigraphic reservoirs of Shahejia Formation in Tiejianglu slope belt have complex oil/ water relationship. The prestack seismic data with relative amplitude preservation contain more information about lithology and fluid than the poststack seismic data. Therefore, the prestack seismic data can be used for hydrocarbon detection. The primary application of prestack seismic data of Aki & Richards and Shuey approximate expressions based on Zoeppritz equation in hydrocarbon detection is introduced. AVO forward modeling is conducted to define fluid-corresponding AVO abnormity, then to identify AVO abnormity across well point trace gather, and finally to interpret AVO multi-attribute body, thus to find abnormal hydrocarbon distribution zones and guide the exploration deployment in the study area.

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