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.

Date of Patent:
Dec. 15, 2020

Filed:

Oct. 17, 2018
Applicant:

Resman As, Trondheim, NO;

Inventors:

Anton Kulyakhtin, Trondheim, NO;

Christian Andresen, Vikhammer, NO;

Thomas Sperle, Jakobsli, NO;

Assignee:

RESMAN AS, Trondheim, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/11 (2012.01); E21B 49/08 (2006.01); E21B 43/14 (2006.01); E21B 47/113 (2012.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
E21B 47/11 (2020.05); E21B 34/06 (2013.01); E21B 43/14 (2013.01); E21B 47/113 (2020.05); E21B 49/08 (2013.01);
Abstract

A method, a system, tools for use by the system, and an interpretation method for injecting and detecting tracers and conducting flow characterizing of a petroleum well are provided. The method describes monitoring of travel time and slip velocity between two/three different phases (oil/water and possibly gas) in the well. The travel time and slip velocity are determined using an injection tool for injection of an over pressurized injection, thus simultaneous injection to all phases, of the partitioning tracers each of which would follow certain phase. The tracers are detected by a tracer detector downstream the injector. The slip velocity is obtained from the difference of travel time of two tracers which partition to two different phases.


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