Patent ID: 11965872
Assignee: CONOCOPHILLIPS COMPANY
Field: Measurement (Instruments)
Classification: CPC E  G | IPC E  G

Claim 0:
1. A method of determining wettability of a core sample, said method comprising:
a) collecting a core sample from a reservoir in a high pressure chamber operably equipped with a pressure sensor, a temperature sensor, a heater, a first high pressure access port at a first end and a second high pressure access port at a second end, said high pressure chamber maintaining said core sample in an inert fluid at reservoir pressure and temperature;
b) injecting a first test fluid into said first access port and collecting said inert fluid at said second access port without exposing said high pressure chamber to ambient pressure or temperature;
c) measuring a first change in pressure within the chamber over time; and
d) determining wettability from a measured change in pressure.