多分量地震裂缝预测技术进展

张 明;姚逢昌;韩大匡;甘利灯

doi:10.11764/j.issn.1672-1926.2007.02.293

天然气地球科学 >

2007 , Vol. 18 >Issue 2: 293 - 297

DOI: https://doi.org/10.11764/j.issn.1672-1926.2007.02.293

天然气地球物理勘探

多分量地震裂缝预测技术进展

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(中国石油勘探开发研究院，北京 100083)

张明(1978-)，男，上海人，博士研究生，现主要从事地球物理方法研究工作.

收稿日期: 2006-11-19

修回日期: 2007-02-15

网络出版日期: 2008-06-20

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PROGRESS OF MULTI-COMPONENT SEISMIC FOR FRACTURE DETECTION

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（Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China）

Received date: 2006-11-19

Revised date: 2007-02-15

Online published: 2008-06-20

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摘要

多分量勘探技术近年来发展迅速，在非均质性储层的含油气预测、油藏精细描述中发挥了重要作用并显示了巨大的应用潜力，由于横波对介质的各向异性响应比纵波敏感，故利用多分量技术探测介质各向异性参数比常规纵波勘探更有优势。回顾了近年来利用多分量技术探测裂缝各向异性的进展状况，重点介绍了利用横波双折射现象预测裂缝走向、密度的方法原理和实际应用的一些主要方法如最小熵旋转法、正交基旋转法、全局寻优法等及其应用效果，并指出了每种方法的优点与不足，最后展望了该技术的应用前景。

关键词： 多分量地震; 双折射; 裂缝; 各向异性

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张明;姚逢昌;韩大匡;甘利灯 . 多分量地震裂缝预测技术进展[J]. 天然气地球科学, 2007 , 18(2) : 293 -297 . DOI: 10.11764/j.issn.1672-1926.2007.02.293

Abstract

The fast growing technique, multicomponent seismic, has played an important roleand shown a great potential for application to the oil and gas prediction of heterogeneous reservoir and the reservoir fine description. As S wave is more sensitive to anisotropy medium than P wave, multicomponent seismic has many advantages over the pure P wave exploration in estimating anisotropy parameters. The paper reviews the progress of multicomponent methods for detecting fractures in recent years, and provides a brief introduction to the theory of using S wave birefringence to predict fracture orientation and density, as well as some main methods in practice such as minimum entropy rotation method, orthogonal base rotation method and simulated annealing method. It also presents the effects, advantages and disadvantages of every method, and offers a prospect for the technique application.

Key words： Multicomponent seismic; Birefringence; Fracture; Anisotropy

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