Patent Number: 6,490,531

Title: Optimized method for determining physical parameters of a sample subjectedto centrifugation

Abstract: A method for faster determination of physical parameters (capillarypressure curves and relative permeabilities for example) of a geologicsample initially saturated with a first fluid placed in a vessel andsubjected to centrifugation in the presence of a second fluid. Theequilibrium saturations are determined before complete stabilization isreached through analytic modelling involving exponential functions, bestadjusting to an effective production curve, for each speed stage. Adatabase, obtained by means of various simulations, is used to obtain therelative permeability curves corresponding to the centrifuged sample. Themethod can be applied for measurement of petrophysical characteristics.

Inventors: Goglin; Elodie (Bignicourt, FR), Fleury; Marc (Domalne St Fran.cedilla.ois d'Asslse, FR), Egermann; Patrick (Rueil Malmalson, FR)

Assignee:

International Classification: G01N 15/08 (20060101); G01N 33/24 (20060101); G01N 015/08 ()

Expiration Date: 12/02015