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:
Sep. 19, 2023

Filed:

Dec. 14, 2017
Applicant:

Schlumberger Technology Corporatoin;

Inventors:

Simon Ivar Andersen, Tikoeb, DK;

Wael Abdallah, Al-Khobar, SA;

Dominic Joseph Brady, Al-Khobar, SA;

Mohammed Badri, Al-Khobar, SA;

Sharath Chandra Mahavadi, Lexington, MA (US);

Bastian Sauerer, Al-Khobar, SA;

Mohamed Ahmed Abdel Reheem Hamdy, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 13/02 (2006.01); E21B 49/08 (2006.01); G01N 21/33 (2006.01); G01N 21/3577 (2014.01); G01N 21/552 (2014.01); G01N 21/59 (2006.01); G01N 21/64 (2006.01); G01N 21/77 (2006.01); G01N 33/28 (2006.01); E21B 47/113 (2012.01);
U.S. Cl.
CPC ...
G01N 13/02 (2013.01); E21B 47/114 (2020.05); E21B 49/08 (2013.01); E21B 49/081 (2013.01); G01N 21/33 (2013.01); G01N 21/3577 (2013.01); G01N 21/552 (2013.01); G01N 21/59 (2013.01); G01N 21/64 (2013.01); G01N 21/77 (2013.01); G01N 33/2823 (2013.01); E21B 49/0875 (2020.05); G01N 2013/0283 (2013.01); G01N 2021/6417 (2013.01);
Abstract

Methods may include emplacing a downhole tool within a wellbore, sampling a fluid downhole with the downhole tool; analyzing the fluid, and calculating an interfacial tension (IFT), wherein calculating the acid-base IFT contribution comprises measuring a concentration of a surface-active species directly. Apparatuses for measuring an interfacial tension (IFT) in a fluid downhole may be part of a downhole tool and may include a sampling head to sample the fluid; and a downhole fluid analysis module that includes a spectrometer capable of measuring a concentration of a surface-active species in the fluid, and a processor configured to determine the IFT of the fluid downhole based on the measured concentration of the surface-active species.


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