Aging Cell Aparatus

Manufacturer: Vinci Technologies
Model Number: ACA-700

The apparatus is designed for aging core samples with crude oil so as to restore its reservoir wettability before being used for a SCAL study. The base version is delivered with one core unit but can configured with five coreholders. The aging method entails first saturating a cleaned (and thus water wet) core plug with brine. The brine is then displaced by crude oil until representative initial water saturation is achieved. During this process the smaller pores remain water –filled, whereas the oil invades the remainder of the pore space, leaving thin water films on the pore walls and in crevices. Finally, the core containing crude oil and connate water is left for many weeks at reservoir temperature and pressure. It is at this stage that wettability changes may occur in the oil-invaded pores. However, these changes are dependant upon the stability of the water wet films, trapped between the rock surface and the oil. The pore walls can only become oil-wet if contacted by oil due to the rupture of these films. In this case the core will have achieved a mixed wettability state status.

Maximum confining and pore pressure: 10, 000 psi
Working temperature : up to 150°C
Core length : up to 3”
Core diameter: 1″ and 1 ½”
Flow rate: up to 10 ml/min
Wetted material : stainless steel
N2 requirement: 2,000 psi
Power supply: 220VAC, 50Hz