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US 11,965,872 B2Granted
High pressure core chamber and experimental vessel
AssigneeConocoPhillips Company
InventorsMartin C. Krueger, Shaina A. Kelly, Gerald E. Michael, Thiago B. Simoes Correa
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Abstract
A high pressure core chamber for use in collecting pressurized core samples from a reservoir is equipped with at least two high pressure access valves, allowing the core chamber to also function as a vessel for various high pressure experiments. In some embodiments, the core chamber is also equipped with a heater, allowing high pressure, high temperature experiments, and thus duplicating reservoir conditions. Various assays using the core chamber are also described.
Claims10
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.
2 more elements
Dependencies are inferred from the claim text.