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:
May. 21, 2002
Filed:
May. 14, 1998
Applicant:
Inventors:
Philippe Chevalier, Verrieres le Buisson, FR;
Gerard Segeral, Gif sur Yvette, FR;
Assignee:
Schlumberger Technology Corporation, Ridgefield, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/44 ;
U.S. Cl.
CPC ...
G01F 1/44 ;
Abstract
The invention relates to a method of characterizing an oil borehole effluent, formed by a multiphase fluid mixture typically containing water, oil, and gas. According to the invention, a gadolinium 153 source is used to emit gamma rays at a first energy level of about 100 keV and at a second energy level of about 40 keV, and the attenuation of the gamma rays at these two energy levels is measured after the rays have passed through the effluent.