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:
Jul. 13, 2021

Filed:

Oct. 28, 2016
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Matthew Chase Griffing, Kingwood, TX (US);

Imran Sharif Vehra, Kingwood, TX (US);

Hsu-Hsiang Wu, Sugar Land, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01V 3/30 (2006.01); E21B 49/00 (2006.01); G01V 13/00 (2006.01); E21B 47/125 (2012.01);
U.S. Cl.
CPC ...
G01V 3/30 (2013.01); E21B 47/125 (2020.05); E21B 49/00 (2013.01); G01V 13/00 (2013.01);
Abstract

A logging tool and a method for in-situ, independent calibration of receiver amplifier electronics separately from transmitter electronics. A logging tool can perform in-situ gain and phase calibration on one or more receiver assemblies, each consisting of at least a receiver amplifier electronics and a receiver antenna, and based on a calculated gain and phase of the receiver assembly, determine the true antenna amplitude and phase associated with a measurement made by the receiver assembly. The logging tool can perform in-situ crosstalk measurement and calibration, by determining a crosstalk matrix for all of the receiver assemblies and for each receiver assembly, removing the crosstalk interference from the measurement made by the receiver assembly.


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