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What is Overpressure and Lithostatic Pressure Explained about?
Overpressure, or pressure higher than hydrostatic pressure, can be generated in sedimentary basins through several mechanisms: 1) Disequilibrium compaction occurs when compaction does not keep pace with increasing burial depth, leading to higher than expected pore pressures. 2) Fluid expansion at depth, such as from hydrocarbon cracking/gas generation, thermal pressuring due to temperature increases, mineral phase transformations, and lateral/vertical fluid transfer can all cause pore space volume change
- Author
- Aditya Chourasiya
- Language
- EN