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Stress and fracture modeling using the principle of superposition
Stress and fracture modeling using the principle of superposition
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机译:使用叠加原理的应力和断裂建模
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摘要
Stress and fracture modeling using the principal of superposition is provided. A system simulates linearly independent far field stress models for a subsurface earth volume, computing stress, strain, and displacement values based on superposition of independent stress tensors. Based on the precomputed values, the system generates real-time recovery of paleostress values, or, stress, strain, and displacement parameters for any point in the subsurface volume as the user varies far field stress values. The system recovers one or more tectonic events, or a stress tensor represented by a ratio of principal magnitudes and associated orientation, using fault geometry, well bore data (fracture orientation and secondary fault plane data), GPS, InSAR, folded and faulted horizons, tiltmeters, slip and slikenlines on faults. The system uses different geologic data from seismic interpretation, well bore readings, and field observation to provide numerous results, such as predicted fracture propagation based on perturbed stress field.
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