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:
Jan. 02, 2018
Filed:
Dec. 23, 2013
Applicant:
Restrack As, Kjeller, NO;
Inventors:
Beata Krognes Jessheim, Jessheim, NO;
Sissel Opsahl Viig, Oslo, NO;
Øyvind Dugstad, Hagan, NO;
Helge Stray, Hagan, NO;
Assignee:
RESTRACK AS, Kjeller, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/08 (2006.01); G01N 33/28 (2006.01); C09K 8/58 (2006.01); B09C 1/00 (2006.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
E21B 49/08 (2013.01); B09C 1/00 (2013.01); C09K 8/58 (2013.01); E21B 47/1015 (2013.01); G01N 33/28 (2013.01); G01N 33/2823 (2013.01);
Abstract
A family of organic tracers is proposed for inter-well measurement of residual oil in petroleum reservoirs, as is their use as partitioning tracers in a petroleum reservoir. The tracers consist of at least one benzyl alcohol of formula i) wherein each of Rto Ris independently selected from H, F, CI, Br, I, CFCFCI, CFCIand CCIand wherein at least one of Rto Ris not H.