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:
Apr. 07, 2020

Filed:

Dec. 02, 2016
Applicant:

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

Inventors:

Mikhail Stukan, Moscow, RU;

Bastian Sauerer, Dhahran, SA;

Wael Abdallah, Al-Khobar, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 99/00 (2009.01); G01N 33/28 (2006.01); E21B 47/06 (2012.01); E21B 49/08 (2006.01); G01N 9/36 (2006.01); G01N 13/02 (2006.01); G06F 17/11 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G01V 99/005 (2013.01); E21B 47/06 (2013.01); E21B 47/065 (2013.01); E21B 49/087 (2013.01); G01N 9/36 (2013.01); G01N 13/02 (2013.01); G01N 33/2823 (2013.01); G06F 17/11 (2013.01); E21B 49/088 (2013.01); E21B 2049/085 (2013.01); G01N 2013/0283 (2013.01); G06F 17/5009 (2013.01);
Abstract

Methods may include measuring an interfacial tension (IFT) for a dead oil sample prepared from a fluid within an interval of a formation; calculating a gas:oil ratio for the fluid within the interval of a formation at a specified temperature and pressure; calculating a live oil density for the fluid within the interval of a formation for the specified temperature and pressure; and converting the IFT for the dead oil sample to a corrected IFT measurement for a live oil within the interval of the formation from the calculated gas:oil ratio and the calculated density. Methods may also include constructing a depletion path for the dead oil sample from one or more isobars and one or more isotherms; and converting the IFT for the dead oil sample to a corrected IFT measurement from the calculated gas:oil ratio and the calculated live oil density for a live oil.


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