The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2008
Filed:
Aug. 18, 2003
Marc Fleury, La Celle Saint Cloud, FR;
Françoise Deflandre, Ermont, FR;
Marc Fleury, La Celle Saint Cloud, FR;
Françoise Deflandre, Ermont, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A method for measuring the wettability of rocks by low-field nuclear magnetic resonance is described which has application for hydrocarbon reservoir engineering or development, or in civil engineering. The method essentially determines the water wet pore surface and the oil wet pore surface when the sample is saturated with water and oil, by measurements of relaxation times (T, T) of the sample placed in a nuclear magnetic resonance device, previously brought to various water or oil saturation states, and calculating the wettability index by combination of values the relaxation times obtained for said surfaces.