Imbibition studies of low-permeability porous media

Date

1999-01-01

Author

Akın, Serhat

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A systematic investigation of capillary pressure, relative permeability, and fluid flow characteristics within diatomite (a high porosity, low permeability, siliceous rock) is reported. Using an X-ray computerized tomography (CT) scanner, and a specially constructed imbibition cell, we study spontaneous cocurrent water imbibition into diatomite samples at various initial water saturations. Air-water and oil-water systems are used. Despite a marked difference in rock properties between diatomite and sandstone, including permeability and porosity, we find similar trends in saturation profiles and dimensionless weight gain versus time functions. Diatomite is roughly 100 times less permeable than sandstone, yet it imbibes water at rates rivaling sandstone. Importantly, the spontaneous imbibition data when combined with CT-scan images provides a means to determine dynamic relative permeability and capillary pressure functions

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85057417069&origin=inward
https://hdl.handle.net/11511/87820

DOI

https://doi.org/10.2118/54590-ms

Conference Name

SPE Western Regional Meeting 1999, WRM 1999, (26 - 27 Mayıs 1999)

Collections

Department of Petroleum and Natural Gas Engineering, Conference / Seminar

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Citation Formats

S. Akın, “Imbibition studies of low-permeability porous media,” presented at the SPE Western Regional Meeting 1999, WRM 1999, (26 - 27 Mayıs 1999), Alaska, Amerika Birleşik Devletleri, 1999, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85057417069&origin=inward.