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Title: High-resolution numerical methods for compressible multi-phase flow in hierarchical porous media. Progress report, September 1993--September 1994

This is the second year in the proposed three-year effort to develop high-resolution numerical methods for multi-phase flow in hierarchical porous media. The issues being addressed in this research are: Computational efficiency: Field-scale simulation of enhanced oil recovery, whether for energy production or aquifer remediation, is typically highly under-resolved. This is because rock transport properties vary on many scales, and because current numerical methods have low resolution. Effective media properties: Since porous media are formed through complex geologic processes, they involve significant uncertainty and scale-dependence. Given this uncertainty, knowledge of ensemble averages of flow in porous media can be preferable to knowledge of flow in specific realizations of the reservoir. However, current models of effective properties do not represent the observed behavior very well. Relative permeability models present a good example of this problem. In practice, these models seldom provide realistic representations of hysteresis, interfacial tension effects or three-phase flow; there are no models that represent well all three effects simultaneously.
Authors:
Publication Date:
OSTI Identifier:
10133585
Report Number(s):
DOE/ER/25145--T1
ON: DE94008261; TRN: 94:003664
DOE Contract Number:
FG05-92ER25145
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 15 Mar 1994
Research Org:
Duke Univ., Durham, NC (United States). Dept. of Mathematics
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; POROUS MATERIALS; MULTIPHASE FLOW; COMPUTERIZED SIMULATION; PROGRESS REPORT; TECHNOLOGY ASSESSMENT 420500; 990200; MATERIALS TESTING; MATHEMATICS AND COMPUTERS