Print Email Facebook Twitter New capillary number definition for displacement of residual nonwetting phase in natural fractures Title New capillary number definition for displacement of residual nonwetting phase in natural fractures Author Alquaimi, B. (TU Delft Reservoir Engineering; Saudi Aramco) Rossen, W.R. (TU Delft Reservoir Engineering) Date 2017-06-16 Abstract We propose a new capillary number for flow in fractures starting with a force balance on a trapped ganglion in a fracture. The new definition is validated with laboratory experiments using five distinctive model fractures. Capillary desaturation curves were generated experimentally using water-air forced imbibition. The residual saturation-capillary number relationship obtained from different fractures, which vary in aperture and roughness, can be represented approximately by a single curve in terms of the new definition of the capillary number. They do not fit a single trend using the conventional definition of the capillary number. Subject capillary numberdesaturation curveflow in fracturetrapping in fracture To reference this document use: http://resolver.tudelft.nl/uuid:f612cb36-bf5f-41bd-afdc-e7a3f6daffdf DOI https://doi.org/10.1002/2017GL073211 Embargo date 2018-01-01 ISSN 0094-8276 Source Geophysical Research Letters, 44 (11), 5368-5373 Part of collection Institutional Repository Document type journal article Rights © 2017 B. Alquaimi, W.R. Rossen Files PDF AlQuaimi_et_al_2017_Geoph ... etters.pdf 456.24 KB Close viewer /islandora/object/uuid:f612cb36-bf5f-41bd-afdc-e7a3f6daffdf/datastream/OBJ/view