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Title: Stress sensor for cement or fluid applications

Abstract

A system and method measuring subterranean stress. The system and method includes a non-destructive sheath enveloping a tubular structure positioned in direct contact with a lateral subterranean rock formation for sensing expansive changes in the subterranean rock formation. A fiber optic is directly embedded in the non-destructive sheath positioned adjacent to the exterior surface of the tubular structure. The fiber optic transmits light and thereafter receives light in proportion to the expansive changes in the subterranean rock formation. A spectrometer connected to the fiber optic remote from the non-destructive sheath. The spectrometer measures hydrostatic stress in the subterranean rock formation without estimating acoustoelastic effects or occluding the tubular structure.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600200
Patent Number(s):
10,451,497
Application Number:
15/675,473
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/11/2017
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Polsky, Yarom, Lance, Michael J., and Hemrick, James Gordon. Stress sensor for cement or fluid applications. United States: N. p., 2019. Web.
Polsky, Yarom, Lance, Michael J., & Hemrick, James Gordon. Stress sensor for cement or fluid applications. United States.
Polsky, Yarom, Lance, Michael J., and Hemrick, James Gordon. Tue . "Stress sensor for cement or fluid applications". United States. https://www.osti.gov/servlets/purl/1600200.
@article{osti_1600200,
title = {Stress sensor for cement or fluid applications},
author = {Polsky, Yarom and Lance, Michael J. and Hemrick, James Gordon},
abstractNote = {A system and method measuring subterranean stress. The system and method includes a non-destructive sheath enveloping a tubular structure positioned in direct contact with a lateral subterranean rock formation for sensing expansive changes in the subterranean rock formation. A fiber optic is directly embedded in the non-destructive sheath positioned adjacent to the exterior surface of the tubular structure. The fiber optic transmits light and thereafter receives light in proportion to the expansive changes in the subterranean rock formation. A spectrometer connected to the fiber optic remote from the non-destructive sheath. The spectrometer measures hydrostatic stress in the subterranean rock formation without estimating acoustoelastic effects or occluding the tubular structure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

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Works referenced in this record:

Methods for locating a cement sheath in a cased wellbore
patent, January 2017


Pile with sound abatement for vibratory installations
patent, November 2017


Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity
patent, December 2017


Reservoir feed method of making ceramic composite structures and structures made thereby
patent, February 1990