发明名称 |
System and method for estimating subsurface principal stresses from seismic reflection data |
摘要 |
A method and system is described for estimating stress characteristics from seismic data. The method includes receiving seismic data acquired over a region, receiving properties of rock at a location within the region, and estimating one or more stress characteristics for a sub-region by combining the seismic data and the rock properties using a relationship between the stress characteristics in the sub-region and elastic stiffness and/or sonic velocity in the sub-region. The relationship is based on a non-linear elasticity theory. The described system and method also includes analyzing in the seismic data azimuth and offset dependence of seismic signatures for seismic anisotropy thereby determining a set of anisotropic coefficients; identifying directions of minimum, intermediate and maximum stresses from orientation of principal axes of seismic anisotropy and signs of the anisotropic coefficients; and inverting the anisotropic coefficients thereby estimating magnitudes of principal stresses in the sub-region using non-linear elastic constants and vertical total stress information derived from the rock properties.
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申请公布号 |
US2003125878(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US20010023293 |
申请日期 |
2001.12.17 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
BAKULIN ANDREY;SINHA BIKASH K.;ANDRE PRIOUL ROMAIN CHARLES |
分类号 |
G01V1/30;(IPC1-7):G01V1/28 |
主分类号 |
G01V1/30 |
代理机构 |
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地址 |
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