Patent ID: 7257989
Filing Date: 2007-08-21
Classification: G01N

Abstract:
1. Method for measuring the physical characteristics of a solid porous sample saturated with a first fluid by carrying out drainage or imbibition phases, in the presence of a second fluid with a different density from that of the first fluid, involving the use of a centrifugation assembly having at least one vessel for the sample, adjusted for applying to the sample a centrifugal force that is oriented in the elongation direction and variable so as to displace the first fluid by the second fluid, and determination of a final saturation value for displaced-fluid saturation, wherein the drainage or imbibition phases are carried out by applying a porous plate against one end face of the sample traversed by the displaced fluid, said porous plate being wettable by the displaced fluid and being perforated with perforations of a number and cross section that enable rapid drainage of the fluid contained in the core sample and obtain a substantially uniform saturation profile.