From seismic traces to reservoir properties Physics-driven inversion
From seismic traces to reservoir properties Physics-driven inversion
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DOI：
10.1190/1.2907175
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发表时间：
2008-04
期刊：
影响因子：
3.3
通讯作者：
K. Spikes;J. Dvorkin;M. Schneider
中科院分区：
文献类型：
--
作者：
K. Spikes;J. Dvorkin;M. Schneider
正演模拟和反演是将地震轨迹转化为弹性地球性质的常用工具。对真实地震数据和多次迭代合成地震数据的比较提供了这种转换，后者是根据弹性特性的初始模型和扰动模型计算的。最终的地球模型，即真实地震数据与合成地震数据最匹配的模型，可能代表了p波阻抗（Ip）和泊松比（ν）等独立弹性常数的空间分布。虽然这些弹性属性图对地球物理学家来说很有意义，但它们无法为需要岩性、流体和孔隙度的工程师提供必要的信息，即块状属性图和原位条件。
Forward modeling and inversion are commonly used tools to translate seismic traces into elastic Earth properties. Comparisons of real and multiple iterations of synthetic seismic data, the latter computed from initial and perturbed models of elastic properties, provide this translation. The final Earth model, the one corresponding to the best match between the real and synthetic seismic data, possibly represents the spatial distribution of independent elastic constants such as P-wave impedance (Ip) and Poisson's ratio (ν). Although these maps of elastic properties are meaningful to geophysicists, they fail to supply necessary information to engineers who require lithology, fluid, and porosity, i.e., bulk property maps and in-situ conditions.