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.
Patent No.:
Date of Patent:
Mar. 19, 2024
Filed:
Apr. 12, 2022
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Andreas Ellmauthaler, Houston, TX (US);
Glenn Andrew Wilson, Houston, TX (US);
John L. Maida, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); E21B 47/135 (2012.01); G01V 1/38 (2006.01); G01V 1/52 (2006.01); G02B 6/02 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
G01H 9/004 (2013.01); E21B 47/135 (2020.05); G01V 1/38 (2013.01); G01V 1/52 (2013.01); G02B 6/02076 (2013.01); H04J 14/02 (2013.01);
Abstract
A distributed acoustic system (DAS) may comprise an interrogator and an umbilical line attached at one end to the interrogator, a downhole fiber attached to the umbilical line at the end opposite the interrogator. The interrogator may further include a proximal circulator, a distal circulator connected to the proximal circulator by a first fiber optic cable, and a second fiber optic cable connecting the proximal circulator and the distal circulator.