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Wettability literature survey - Part 4: Effects of wettability on capillary pressure

Journal Article · · J. Pet. Technol.; (United States)
DOI:https://doi.org/10.2118/15271-PA· OSTI ID:5787845
The capillary-pressure/saturation relationship depends on the interaction of wettability, pore structure, initial saturation, and saturation history. No simple relationship exists that relates the capillary pressures determined at two different wettabilities. Therefore, the most accurate measurements are made with cores that have native reservoir wettability. The article describes pore geometry and the pore medium and concludes that because of wettability, pore structure, initial saturation, and inhibition behavior interactions, there is a large range of contact angles where neither oil nor water will imbibe freely into a uniformly wetted reservoir core. In contrast it is sometimes possible for both fluids to imbibe freely into a core with fractional or mixed wettability.
Research Organization:
Conoco Inc., Production Research Div.
OSTI ID:
5787845
Journal Information:
J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 39:10; ISSN JPTJA
Country of Publication:
United States
Language:
English

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