Estimation of capillary pressure and relative permeability functions from centrifuge experiments

Journal Article · Sun Oct 31 23:00:00 EST 1993 · SPE Reservoir Engineering (Society of Petroleum Engineers); (United States)

DOI:https://doi.org/10.2118/20805-PA· OSTI ID:5627491

Nordtvedt, J E; Mejia, G; Yang, Pin Heul; Watson, A T ^[1]

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1. Texas A and M Univ., College Station, TX (United States)

A method to estimate capillary pressure and relative permeability curves simultaneously from transient, multirate centrifuge experiments performed on homogeneous rock is presented. The unknown functions are represented with B-splines, and the number of knots and coefficient values are selected through a regression-based procedure. The method is demonstrated by use of experimental data for dolomite and sandstone samples with air/water and oil/water fluid systems. An analysis of the accuracy of the estimates is presented. The capillary pressure curve and regions of both relative permeability curves can be estimated accurately.

• OSTI ID: 5627491
• Journal Information: SPE Reservoir Engineering (Society of Petroleum Engineers); (United States), Journal Name: SPE Reservoir Engineering (Society of Petroleum Engineers); (United States) Vol. 8:4; ISSN 0885-9248; ISSN SREEEF
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
020300 -- Petroleum-- Drilling & Production
ACCURACY
CAPILLARY FLOW
CARBONATE ROCKS
DATA
DRILL CORES
ENERGY SOURCES
ENGINEERING
EXPERIMENTAL DATA
FLOW MODELS
FLUID FLOW
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
INFORMATION
MATHEMATICAL MODELS
MINERAL RESOURCES
NUMERICAL DATA
OIL WELLS
PERMEABILITY
PETROLEUM
PETROLEUM DEPOSITS
RESERVOIR ENGINEERING
RESERVOIR PRESSURE
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
WELLS