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SYSTEM AND METHODS FOR ESTIMATING SUBSURFACE HORIZONTAL PRINCIPAL STRESSES IN ANISOTROPIC FORMATIONS
SYSTEM AND METHODS FOR ESTIMATING SUBSURFACE HORIZONTAL PRINCIPAL STRESSES IN ANISOTROPIC FORMATIONS
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机译:用于估计各向异性地层地下水平主应力的系统和方法
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摘要
A method for predicting a total minimum horizontal stress (σh) and a total maximum horizontal stress (σH) for an anisotropic formation may comprise: measuring Young's moduli parallel ±15° and perpendicular ±15° to a transverse isotropy plane of a horizontal core sample from the anisotropic subterranean formation; measuring Poisson's ratios parallel ±15° and perpendicular ±15° to the transverse isotropy plane of the horizontal core sample; inputting the measured Young's moduli and Poisson's ratios of the horizontal core sample into a 1-dimensional mechanical earth model (1-D MEM); and calculating, using the 1-D MEM, a predicted total minimum horizontal stress (σh) and a predicted total maximum horizontal stress (σH).
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