In-situ method for determining pore size distribution, capillary pressure and permeability

Patent · Tue Feb 17 00:00:00 EST 1987

OSTI ID:7097553

Vinegar, H J; Waxman, M H

A method is described for determining the pore sizes entered by the oil phase in an oil-bearing formation, comprising: logging the formation of interest with an induced polarization logging tool having at least one source electrode; computing from the induced polarization measurements obtained by the logging tool a normalized induced polarization response function; obtaining core material from the formation of interest; extracting the water and hydrocarbons from the core material; resaturating the core material with formation brine; measuring the normalized induced polarization response function for the core material; and determining the pore sizes containing oil in the formation by comparing the normalized induced polarization response function from the formation with the normalized induced polarization response function of the core.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4644283
• OSTI ID: 7097553
• Resource Relation: Patent File Date: Filed date 19 Mar 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM DEPOSITS
DRILL CORES
INDUCED POLARIZATION LOGGING
PERMEABILITY
POROSITY
PRESSURE MEASUREMENT
BRINES
CALCULATION METHODS
DATA ANALYSIS
ELECTRODES
EXTRACTION
HYDROCARBONS
RESERVOIR PRESSURE
RESPONSE FUNCTIONS
WATER REMOVAL
WATER SATURATION
WELL LOGGING EQUIPMENT
ELECTRIC LOGGING
EQUIPMENT
FUNCTIONS
GEOLOGIC DEPOSITS
MINERAL RESOURCES
ORGANIC COMPOUNDS
REMOVAL
RESOURCES
SATURATION
SEPARATION PROCESSES
WELL LOGGING
020200* - Petroleum- Reserves
Geology
& Exploration