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Title: Spontaneous Imbibition in Low Permeability Medium, SUPRI TR-114

Abstract

A systematic experimental investigation of capillary pressure characteristics and fluid flow in diatomite was begun. Using an X-ray CT scanner and a specially constructed imbibition cell, we study spontaneous water imbibition processes in diatomite and, for reference, Berea sandstone and chalk. The mass of water imbibed as a function of time is also measured. Imbibition is restricted to concurrent flow. Despite a marked difference in rock properties such as permeability and porosity, we find similar trends in saturation profiles and weight gain versus time functions. Imbibition in diatomote is relatively rapid when initial water saturation is low due to large capillary forces. Using a non-linear regression analysis together with the experimental data, the capillary pressure and water relative permeability curves are determined for the diatomite in the water-air system. The results given for displacement profiles by numerical simulation match the experimental results.

Authors:
;
Publication Date:
Research Org.:
National Petroleum Technology Office, Tulsa,Office, Tulsa, OK (US)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE) (US)
OSTI Identifier:
9325
Report Number(s):
DOE/BC/14994-13
TRN: AH200122%%206
DOE Contract Number:  
FG22-96BC14994
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 9 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; DIATOMACEOUS EARTH; CAPILLARY FLOW; FLUID FLOW; PERMEABILITY; POROSITY; REGRESSION ANALYSIS; SANDSTONES; WATER SATURATION; ROCK MECHANICS

Citation Formats

Kovscek, Anthony R., and Schembre, Josephina. Spontaneous Imbibition in Low Permeability Medium, SUPRI TR-114. United States: N. p., 1999. Web. doi:10.2172/9325.
Kovscek, Anthony R., & Schembre, Josephina. Spontaneous Imbibition in Low Permeability Medium, SUPRI TR-114. United States. doi:10.2172/9325.
Kovscek, Anthony R., and Schembre, Josephina. Mon . "Spontaneous Imbibition in Low Permeability Medium, SUPRI TR-114". United States. doi:10.2172/9325. https://www.osti.gov/servlets/purl/9325.
@article{osti_9325,
title = {Spontaneous Imbibition in Low Permeability Medium, SUPRI TR-114},
author = {Kovscek, Anthony R. and Schembre, Josephina},
abstractNote = {A systematic experimental investigation of capillary pressure characteristics and fluid flow in diatomite was begun. Using an X-ray CT scanner and a specially constructed imbibition cell, we study spontaneous water imbibition processes in diatomite and, for reference, Berea sandstone and chalk. The mass of water imbibed as a function of time is also measured. Imbibition is restricted to concurrent flow. Despite a marked difference in rock properties such as permeability and porosity, we find similar trends in saturation profiles and weight gain versus time functions. Imbibition in diatomote is relatively rapid when initial water saturation is low due to large capillary forces. Using a non-linear regression analysis together with the experimental data, the capillary pressure and water relative permeability curves are determined for the diatomite in the water-air system. The results given for displacement profiles by numerical simulation match the experimental results.},
doi = {10.2172/9325},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Technical Report:

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