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. 21, 2017

Filed:

Apr. 28, 2014
Applicant:

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

Inventors:

Weijun Guo, Houston, TX (US);

Daniel Francois Dorffer, Houston, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01V 5/08 (2006.01); G01V 5/10 (2006.01); E21B 47/00 (2012.01); C09K 8/467 (2006.01); C04B 28/02 (2006.01);
U.S. Cl.
CPC ...
G01V 5/101 (2013.01); C04B 28/02 (2013.01); C09K 8/467 (2013.01); E21B 47/00 (2013.01); E21B 47/0005 (2013.01);
Abstract

Neutron activation measurement techniques may be used to evaluate various properties of a subterranean well structure. In an example implementation, a logging tool can be positioned within a wellbore, such that neutrons generated by a neutron source are directed towards well structure. In response to the neutrons, the well structure emits gamma rays. A portion of the gamma rays can be detected by a gamma detector. To enhance the well structure's response to neutron activation, the well structure can be constructed of materials that include one or more doping materials. The inclusion of these doping materials can increase the number of gamma rays that are emitted when neutrons are directed into the well structure, and these emitted gamma rays can be more easily identified based on their energy level.


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