Capillary Pressure

Capillary Pressure Refrigerated Centrifuge

Manufacturer: Vinci Technologies
Model Number: RC4500

The RC4500 is a refrigerated centrifuge modified to enable rapid determination of capillary pressure characteristics at atmospheric and/or overburden pressures on six core samples simultaneously. It can also be utilized for rapid sample preparation to restore state conditions for subsequent testing in various test equipment. Custom designed sample chambers offer the ability to spin core plug samples up to 1.5 inches in diameter at rotational speeds up to 4,500 RPM. It includes a rotor and drainage cells which can accommodate either 1”, or 1.5” diameter cores. A digital speed control with the ability to ramp speeds at specified intervals and a precision temperature control system is included. An over-temperature setpoint stops the centrifuge if the temperature exceeds the setpoint by a specified value. The system is also equipped with a sensor for rotor imbalance. It is equipped with a digital camera system that allows to user to measure the displaced fluid volumes in each of the cells sequentially.

Capillary Pressure and Resistivity System

Manufacturer: Vinci Technologies
Model Number: CAPRI-700

The CAPRI system is dedicated to the determination of the capillary pressure curves (positive and negative) and the electrical resistivity index as a function of core sample saturation at reservoir conditions. Saturation exponent “n”, formation factor and cementation exponent “m” are also calculated. The instrument consists of a core holder furnished with hydrophobic and hydrophilic ceramics and electrodes pattern for resistivity measurement, an automated pumping system for fluid control and a resistivity cell for brine resistivity measurement. The whole is housed in a temperature controlled air bath.