Patent ID: 11940437
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G  E | IPC E  G

Claim 2:
3. The method of claim 2, wherein testing the reservoir core sample to obtain a set of water saturation (Sw,avg) and imbibition capillary pressure (Pci) data points comprises:
saturating the reservoir core sample with connate formation water and dead crude oil;
placing the reservoir core sample in an imbibition bucket of the centrifuge, the imbibition bucket being at least partially filled with injection water;
setting a temperature in the imbibition bucket to a threshold reservoir temperature;
rotating the reservoir core sample at a first rotational speed until no oil production from the reservoir core sample is observed; and
rotating the reservoir core sample at a second rotational speed higher than the first rotational speed until no oil production from the reservoir core sample is observed.