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This document presents a new model for predicting pore pressure in subsurface formations. It accounts for compaction disequilibrium caused by rapid sedimentation and low permeability, which can lead to abnormal pore pressures like overpressure. The model relates porosity, effective stress, and compressional velocity through exponential equations. It also considers the impact of stress unloading during uplift, which causes smaller effective stress and higher pore pressure than the loading path. Field and lab

Author
Wassef MB
Language
EN