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:
Jan. 10, 2017

Filed:

Sep. 19, 2014
Applicant:

Schlumberger Technology Corporation, Sugar land, TX (US);

Inventor:

Yves Manin, Le Plessis-Robinson, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/06 (2012.01); E21B 43/14 (2006.01); E21B 47/10 (2012.01);
U.S. Cl.
CPC ...
E21B 43/14 (2013.01); E21B 47/06 (2013.01); E21B 47/10 (2013.01);
Abstract

A method and system for estimating water cut or water fraction. The method may include independently establishing a production index for a region in a well. An initial flow rate in the region may be computed from the production index. Further, a measured flow rate may also be monitored within the region on an ongoing rate, for example, with a Venturi device. Thus, a comparison of the initial and measured flow rates may also take place on an ongoing basis so as to provide a real time read of fluid density. This, in turn may be used to estimate water cut of anywhere between 0 and 100% for the region in a dynamic manner. As a result, production from the overall well may be optimized with greater accuracy as a determination on the amount of production allowed, if any, is made on a region by region basis with improved water cut accuracy regarding each region.


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