Invention Grant
- Patent Title: Topside distributed acoustic sensing interrogation of subsea wells with a single optical waveguide
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Application No.: US17718493Application Date: 2022-04-12
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Publication No.: US11933664B2Publication Date: 2024-03-19
- Inventor: Andreas Ellmauthaler , Glenn Andrew Wilson , John L. Maida
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: C. Tumey Law Group PLLC
- Agent John Wustenberg
- Main IPC: G01H9/00
- IPC: G01H9/00 ; E21B47/135 ; G01V1/38 ; G01V1/52 ; G02B6/02 ; H04J14/02

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.
Public/Granted literature
- US20220236106A1 Topside Distributed Acoustic Sensing Interrogation Of Subsea Wells With A Single Optical Waveguide Public/Granted day:2022-07-28
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