EPS 700-Electrical properties system @ overburden pressure


The EPS 700 determines at overburden (up to 700 bar) conditions, rock and brine resistivity for both fully and partially brine saturated core samples. The data obtained from this device can be utilized to derive Formation factor, cementation exponent m, resistivity index and Archie saturation exponent n and also aid depth adjustment in a drilling or wireline log. The apparatus also serves as a desaturator thereby enabling the determination of capillary pressure-saturation curves. The system includes a hydrostatic electrical core holder, a manual hydraulic pump to generate confining pressure, and a pressure control panel for core desaturation. The system can be proposed for multi sample core holders.


Core diameter: 1" and 1.5"
Core Length: up to 3"
Resistivity measurement: 2 and 4 electrodes
Overburden pressure: 700 bar (10,000 psi)
Temperature: Room condition
Power supply: 110-220 VAC, 50 or 60 Hz
Air: 150 psi