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:
Nov. 28, 2000
Filed:
Aug. 24, 1998
Applicant:
Inventor:
Voldi E Maki, Jr, Austin, TX (US);
Assignee:
Dresser Industries, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7330 / ;
Abstract
An apparatus and method for wettability measurements are provided. The apparatus includes a surface having a pair of electrodes separated by an insulator affixed thereto. The electrodes are operable for supporting an oil film, and the may be immersed in a surfactant solution. Circuitry for measuring the complex impedance between the electrodes is coupled to the electrodes. The capacitive part of the complex impedance provides a measure of the oil thickness as it is removed by the surfactant solution. A rotating member is provided for agitating the surfactant solution thereby modifying the effectiveness of the solution in removing the film.