| 基于BISQ机制三维双相正交裂隙各向异性介质衰减及频散方位特性研究 |
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| 引用本文： | 张显文,王德利,王者江,郝奇.基于BISQ机制三维双相正交裂隙各向异性介质衰减及频散方位特性研究[J].地球物理学报,2010,53(10):2452-2459. |
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| 作者姓名： | 张显文 王德利 王者江 郝奇 |
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| 作者单位： | 1. 吉林大学地球探测科学与技术学院,长春 130026;
2. 中海油研究总院,北京 100027 |
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| 基金项目： | 国家自然科学基金项且 |
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| 摘 要： | 对于复杂裂隙介质,双相各向异性介质模型更能真实地反映实际地层特征.本文基于BISQ机制推导了三维双相各向异性介质的频散方程,给出了用于确定相速度和逆品质因子的波数方程及其表达式,研究了固体骨架各向异性、固流耦合效应各向异性、渗透率各向异性对衰减及频散的影响,并对频散和衰减的方位特性进行了分析,为预测储层流体的存在、分布以及孔隙结构提供有力的理论依据,使得多方位储层地球物理参数联合反演具有可行性.
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| 关 键 词： | BISQ机制 双相正交介质 衰减 速度频散 方位特性 |
| 收稿时间： | 2009-12-14 |
The study on azimuth characteristics of attenuation and dispersion in 3D two-phase orthotropic crack medium based on BISQ mechanism |
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| ZHANG Xian-Wen,WANG De-Li,WANG Zhe-Jiang,HAO Qi.The study on azimuth characteristics of attenuation and dispersion in 3D two-phase orthotropic crack medium based on BISQ mechanism[J].Chinese Journal of Geophysics,2010,53(10):2452-2459. |
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| Authors: | ZHANG Xian-Wen WANG De-Li WANG Zhe-Jiang HAO Qi |
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| Institution: | 1. College of Geo-Exploration Science and Technology of Jilin University, Changchun 130026, China;
2. CNOOC Research Institute, Beijing 100027, China |
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| Abstract: | Considering the complexity of subsurface medium, two-phase anisotropic model can veritably reflect the actual medium characteristics. Based on BISQ mechanism, this article derives the dispersion equation of 3D two-phase anisotropic medium, and gives the wave-number equation and expression used to derive phase velocity and 1/Q. Then we investigate the effects of the solid skeleton anisotropy, the solid/fluid coupling anisotropy and permeability anisotropy on attenuation and dispersion, and also make analysis of the azimuth characteristics of attenuation and dispersion. All of these studies can provide powerful theoretical criteria for predicting the existence and distribution of fluid in reservoir and the pore structure, and make multi-azimuth joint inversion for reservoir geophysical parameters be feasible. |
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| Keywords: | BISQ mechanism Two-phase orthotropic medium Attenuation Velocity dispersion Azimuth characteristics |
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