Models for simulating the electrical resistance of porous media

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:6893142

Dicker, A I.M.; Bemelmans, W A

A new approach to simulate the electrical resistance of porous rock based on 2-D and 3-D embedded resistor networks has been developed. The resistors in the network represent cylindrical tubes to which radii and lengths are pseudo-randomly assigned. The numerical calculation of the resistivity index (and hence the saturation exponent) of such networks is described. The simulation is equivalent to injecting a non-wetting, non-conducting fluid into a network of connected pore tubes initially fully saturated with brine. Pore surface roughness is incorporated in the model by allowing a thin layer of water on the tube walls. The simulated data agree well with the experimental observations. In general, the resistivity index calculated as a function of water saturation shows Archie-type behaviour with saturation exponents in the range 1.5-2.0.

• Research Organization: Koninklijke/Shell Exploratie en Produktie Laboratorium, Rijswijk
• OSTI ID: 6893142
• Report Number(s): CONF-8406110-
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
99 GENERAL AND MISCELLANEOUS
990230 -- Mathematics & Mathematical Models-- (1987-1989)
BRINES
DATA ANALYSIS
ELECTRIC CONDUCTIVITY
ELECTRIC LOGGING
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
EXPLORATION
GEOLOGIC DEPOSITS
GEOLOGIC MODELS
GEOPHYSICS
MATHEMATICAL MODELS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PHYSICAL PROPERTIES
POROSITY
RESERVOIR ROCK
RESISTORS
RESOURCES
SATURATION
SURFACE PROPERTIES
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
WATER SATURATION
WELL LOGGING