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Title: Determination of the effective stress law for permeability and deformation in low-permeability rocks

Journal Article · · SPE Formation Evaluation (Society of Petroleum Engineers); (United States)
DOI:https://doi.org/10.2118/20572-PA· OSTI ID:5154438

This paper reports that laboratory experiments were performed to determine the effective stress law of tight sandstones and chalk for permeability and deformation. Permeability and volumetric strain data were taken at various stresses and pore pressures and were analyzed with a statistical model-building approach. Results show that the effective stress laws for both processes are variable with stress and pressure, depend on the material, and do not agree well with present theories. This may be applied for a greater understanding of oil reservoir formations.

OSTI ID:
5154438
Journal Information:
SPE Formation Evaluation (Society of Petroleum Engineers); (United States), Vol. 7:2; ISSN 0885-923X
Country of Publication:
United States
Language:
English