A framework for inferring field‐scale rock physics relationships through numerical simulation
A framework for inferring field‐scale rock physics relationships through numerical simulation
复制标题
通过数值模拟推断现场尺度岩石物理关系的框架
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
R. Knight
中科院分区：
文献类型：
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作者：
S. Moysey;K. Singha;R. Knight
岩石物理学试图将岩石的地球物理响应与感兴趣的地质特性（如孔隙度、岩性和流体含量）联系起来。然而，通过现场规模调查估计的地球物理性质受到其他因素的影响，例如调查规模的复杂平均异质性和通过数据反演引入的伪影，这些因素是岩石物理学传统方法无法解决的。我们通过蒙特卡洛模拟创建地球物理调查的数值模拟来解释这些场尺度因子。类比用于开发现场规模的岩石物理关系，适用于将从调查估计的地球物理特性转换为地质特性。我们证明了该技术使用合成的例子，雷达层析成像是用来估计含水量。
Rock physics attempts to relate the geophysical response of a rock to geologic properties of interest, such as porosity, lithology, and fluid content. The geophysical properties estimated by field‐scale surveys, however, are impacted by additional factors, such as complex averaging of heterogeneity at the scale of the survey and artifacts introduced through data inversion, that are not addressed by traditional approaches to rock physics. We account for these field‐scale factors by creating numerical analogs to geophysical surveys via Monte Carlo simulation. The analogs are used to develop field‐scale rock physics relationships that are appropriate for transforming the geophysical properties estimated from a survey into geologic properties. We demonstrate the technique using a synthetic example where radar tomography is used to estimate water content.