基于改进BISQ模型的AVA方程

doi:10.7623/syxb201509008

石油学报 ›› 2015, Vol. 36 ›› Issue (9): 1108-1115.DOI: 10.7623/syxb201509008

基于改进BISQ模型的AVA方程

李红星¹, 桂磊峰¹, 陶春辉², 刘财³

1. 东华理工大学核工程与地球物理学院, 江西南昌 330013;
2. 国家海洋局第二海洋研究所, 浙江杭州 310012;
3. 吉林大学地球探测科学与技术学院, 吉林长春 130012

收稿日期:2015-02-20 修回日期:2015-07-31 出版日期:2015-09-25 发布日期:2015-09-30
通讯作者: 李红星,男,1981年1月生,2002年获吉林大学学士学位,2008年获吉林大学博士学位,现为东华理工大学核工程与地球物理学院副院长、副教授,主要从事地震与声学正、反演研究。Email:lihongxingniran@163.com
作者简介:李红星,男,1981年1月生,2002年获吉林大学学士学位,2008年获吉林大学博士学位,现为东华理工大学核工程与地球物理学院副院长、副教授,主要从事地震与声学正、反演研究。Email:lihongxingniran@163.com
基金资助:
国家自然科学基金项目(No.41364004,No.41104073)、国家729重大科技专项(GZH200900502)、国家高技术研究发展计划(863)项目(2012AA09A404)和江西省自然科学基金项目(2010GQS0002)资助。

AVA analysis equation based on modified BISQ model

Li Hongxing¹, Gui Leifeng¹, Tao Chunhui², Liu Cai³

1. School of Nuclear Engineering and Geophysics, East China Institute of Technology, Jiangxi Nanchang 330013, China;
2. Second Institute of Oceanography, State Oceanic Administration, Zhejiang Hangzhou 310012, China;
3. College of Earth Detection Science and Technology, Jilin University, Jilin Changchun 130012, China

Received:2015-02-20 Revised:2015-07-31 Online:2015-09-25 Published:2015-09-30

摘要/Abstract

摘要：

振幅随入射角变化(AVA)技术是油气储层地震预测核心技术。目前,AVA技术建立在单相介质基础上,但实际储层是典型的多相介质,因此研究多相介质AVA分析技术具有重要意义。通过推导基于改进BISQ模型(不含喷射流长度)的AVA方程,建立了双相-双相、双相-单相、单相-双相、单相-单相介质分界面模型,对AVA曲线进行了数值模拟分析。分析结果显示:BISQ-AVA方程在单相介质分界面时退化为传统Zoeppritz方程,在含双相介质界面处,其反射、透射分析结果与Zoeppritz方程分析结果有较大差异,该结果对油气储层地震解释有重要影响。

关键词: BISQ模型, 振幅解释, AVA, 油气储层, 双相介质

Abstract:

Amplitude Versus Angle (AVA) is a core seismic prediction technology for hydrocarbon reservoirs. At present, the application of AVA technology is based on single-phase medium, but actual reservoirs are typical multiphase medium. Therefore, it is of great significance to study the AVA analysis technology based on multiphase medium. AVA equation based on modified BISQ model (without squirt-flow length) is derived to establish double phase-double phase, double phase-single phase, single phase-double phase and single phase-single phase medium interface models, and further carry out numerical simulation analysis of AVA curve. The analysis results indicate that BISQ-AVA equation degenerates to the traditional Zoeppritz equation in case of single-phase medium interface. At double-phase medium interface, the reflection and transmission analysis results have great differences from the analysis result of Zoeppritz equation. Such results have important influences on seismic interpretation of hydrocarbon reservoirs.

Key words: BISQ model, amplitude interpretation, AVA, oil-gas reservoirs, double phase medium

中图分类号:

TE132

李红星, 桂磊峰, 陶春辉, 刘财. 基于改进BISQ模型的AVA方程[J]. 石油学报, 2015, 36(9): 1108-1115.

Li Hongxing, Gui Leifeng, Tao Chunhui, Liu Cai. AVA analysis equation based on modified BISQ model[J]. Acta Petrolei Sinica, 2015, 36(9): 1108-1115.

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基于改进BISQ模型的AVA方程

AVA analysis equation based on modified BISQ model

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