Laboratory Measurement of Capillary Pressure

Laboratory Measurement of Capillary Pressure 2016-10-25T11:54:43-06:00

Fundamentals of Fluid Flow in Porous Media


Chapter 2

Multi-phase Saturated Rock Properties:

Laboratory Measurement of Capillary Pressure

Laboratory experiments have been developed to simulate the displacing forces in a reservoir in order to determine the magnitude of the capillary forces in a reservoir and, thereby, determine the fluid saturation distributions and connate water saturation. Essentially four methods of measuring capillary pressure on small core samples are used:

  • The Porous Diaphragm (or restored capillary pressure) Method
  • The Centrifugal Method
  • The Mercury Injection Method
  • Dynamic capillary pressure method

Differences in wetting characteristics should be taken into account when applying laboratory data to the field. Thus air-water and mercury-air data obtained on cleaned core will represent a fully water wet system for the drainage case. They may not adequately describe a mixed or oil wet system. The closest one can get to this situation, on a routine basis, is with an actual oil water (oil-brine) system when one would expect to find lower Swi values than a water wet system.




If you have any questions at all, please feel free to ask PERM!  We are here to help the community.


Sign up and NOW to receive the latest news, updates and technological advancements made for the Special Core Analysis & Enhanced Oil Recovery Industry

If you don't sign up, you won't know when the next breakthrough occurs!

Sign up for our FREE Newsletter!

We respect your privacy!