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:
Feb. 19, 2019

Filed:

Aug. 24, 2016
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Shouxiang Ma, Dhahran, SA;

Nedhal Mohamed Abdullah Al-Musharfi, Dammam, SA;

Pablo J. Saldungaray, Al Khobar, SA;

Harold Pfutzner, Richmond, TX (US);

Assignees:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/00 (2012.01); G01V 5/10 (2006.01); G01N 33/28 (2006.01);
U.S. Cl.
CPC ...
E21B 47/00 (2013.01); G01N 33/2823 (2013.01); G01V 5/102 (2013.01);
Abstract

The present disclosure describes various embodiments related to methods for determining salinity of water in a borehole of a formation and the water in the formation. Various methods may use inelastic and capture gamma-ray spectra obtained from a pulsed neutron logging tool. Various embodiments may use a ratio of chlorine from a capture spectrum to oxygen from an inelastic spectrum for a near and a far detector to calculate apparent salinity ratios for water in a borehole and a formation. From the apparent salinity ratios, a borehole salinity and a formation salinity may be calculated using a tool characterization database and without using formation water saturation for the calculation. Other embodiments may be disclosed or claimed.


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