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. 28, 2020

Filed:

Oct. 25, 2017
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Jesus Manuel Felix Servin, Dhahran, SA;

Howard Khan Schmidt, Dhahran, SA;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/30 (2006.01); G01V 11/00 (2006.01); E21B 47/04 (2012.01); G01V 3/34 (2006.01); E21B 43/32 (2006.01); E21B 49/00 (2006.01);
U.S. Cl.
CPC ...
G01V 3/30 (2013.01); E21B 43/32 (2013.01); E21B 47/042 (2013.01); G01V 3/34 (2013.01); G01V 11/002 (2013.01); E21B 49/00 (2013.01);
Abstract

Provided are systems and methods for monitoring water cresting in a subsurface formation. Embodiments include, for each of a plurality of locations along a length of a horizontal section of a wellbore extending into a hydrocarbon reservoir of a subsurface formation, advancing an omnidirectional electromagnetic logging tool (ODEMLT) to the location, operating the ODEMLT to transmit (into a portion of the subsurface formation below the horizontal section of the wellbore) an electromagnetic (EM) source signal comprising a multi-frequency waveform, operating the ODEMLT to sense an EM return signal comprising a reflection of the multi-frequency waveform from the subsurface formation, and generating a subset of saturation data for the location corresponding to the sensed EM return signal, and generating, based on the subsets of saturation data, a radargram including a two-dimensional mapping of water saturation within the portion of the subsurface formation.


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