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. 02, 2017
Filed:
Jun. 22, 2012
Applicant:
Lars Kilaas, Trondheim, NO;
Inventor:
Lars Kilaas, Trondheim, NO;
Assignee:
RESMAN AS, Ranheim, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/10 (2012.01); C09K 8/03 (2006.01); C09K 8/52 (2006.01);
U.S. Cl.
CPC ...
E21B 47/1015 (2013.01); C09K 8/03 (2013.01); C09K 8/52 (2013.01);
Abstract
A method for a rapid verification of satisfactory clean-up at the end of the completion process when starting production of petroleum fluids while the completion rig is still at the well. The method includes marking one or more of separated zones along the well by one or more distinct tracers, before starting production. The tracers are added along with the completion or the clean-up fluid, and the tracers are arranged to be released by relative high concentrations from each zone to an inflowing fluid of oil or gas.