Distributed fibre optic strain sensing of an axially deformed well model in the laboratory
Well integrity is crucial in enabling sustainable gas production from methane hydrate reservoirs and real-time distributed monitoring techniques can potentially facilitate proper and timely inspection of well integrity during gas production. In this research, the feasibility of distributed fibre opt...
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ftcdlib:oai:escholarship.org:ark:/13030/qt9181g9bb 2024-02-04T10:02:04+01:00 Distributed fibre optic strain sensing of an axially deformed well model in the laboratory Sasaki, Tsubasa Park, Jinho Soga, Kenichi Momoki, Taichi Kawaguchi, Kyojiro Muramatsu, Hisashi Imasato, Yutaka Balagopal, Ajit Fontenot, Jerod Hall, Travis 2019-12-01 application/pdf https://escholarship.org/uc/item/9181g9bb unknown eScholarship, University of California qt9181g9bb https://escholarship.org/uc/item/9181g9bb public Civil Engineering Engineering Wellbore integrity Fibre optic monitoring Methane hydrate Reservoir compaction article 2019 ftcdlib 2024-01-08T19:06:10Z Well integrity is crucial in enabling sustainable gas production from methane hydrate reservoirs and real-time distributed monitoring techniques can potentially facilitate proper and timely inspection of well integrity during gas production. In this research, the feasibility of distributed fibre optic strain monitoring with Brillouin optical time domain reflectometry/analysis (BOTDR/A) for well monitoring was examined by conducting a laboratory test on a well model subjected to axial tensile deformation, which occurs due to reservoir compaction during gas production. First, the validity of the proposed experimental methodology is assessed by a finite element analysis and theoretical modelling of a well subjected to reservoir compaction. A 3 m long well model is developed from the modelling and is instrumented with different types of fibre optic cables to measure the distributed strain development during tensile loading. Results show that the proposed well model and loading scheme can satisfactorily simulate the axial tensile deformation of the well in the laboratory condition. BOTDR is capable of capturing the tensile strain development of the well model accurately within the limitation of the spatial resolution of the BOTDR measurement. To enable accurate distributed strain monitoring of well deformation with BOTDR/A, the following issues are discussed: tightly buffered coating layers around optical fibre cores through mechanical compression and/or chemical adhesion, and a small number of coating layers. Article in Journal/Newspaper Methane hydrate University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Civil Engineering Engineering Wellbore integrity Fibre optic monitoring Methane hydrate Reservoir compaction |
spellingShingle |
Civil Engineering Engineering Wellbore integrity Fibre optic monitoring Methane hydrate Reservoir compaction Sasaki, Tsubasa Park, Jinho Soga, Kenichi Momoki, Taichi Kawaguchi, Kyojiro Muramatsu, Hisashi Imasato, Yutaka Balagopal, Ajit Fontenot, Jerod Hall, Travis Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
topic_facet |
Civil Engineering Engineering Wellbore integrity Fibre optic monitoring Methane hydrate Reservoir compaction |
description |
Well integrity is crucial in enabling sustainable gas production from methane hydrate reservoirs and real-time distributed monitoring techniques can potentially facilitate proper and timely inspection of well integrity during gas production. In this research, the feasibility of distributed fibre optic strain monitoring with Brillouin optical time domain reflectometry/analysis (BOTDR/A) for well monitoring was examined by conducting a laboratory test on a well model subjected to axial tensile deformation, which occurs due to reservoir compaction during gas production. First, the validity of the proposed experimental methodology is assessed by a finite element analysis and theoretical modelling of a well subjected to reservoir compaction. A 3 m long well model is developed from the modelling and is instrumented with different types of fibre optic cables to measure the distributed strain development during tensile loading. Results show that the proposed well model and loading scheme can satisfactorily simulate the axial tensile deformation of the well in the laboratory condition. BOTDR is capable of capturing the tensile strain development of the well model accurately within the limitation of the spatial resolution of the BOTDR measurement. To enable accurate distributed strain monitoring of well deformation with BOTDR/A, the following issues are discussed: tightly buffered coating layers around optical fibre cores through mechanical compression and/or chemical adhesion, and a small number of coating layers. |
format |
Article in Journal/Newspaper |
author |
Sasaki, Tsubasa Park, Jinho Soga, Kenichi Momoki, Taichi Kawaguchi, Kyojiro Muramatsu, Hisashi Imasato, Yutaka Balagopal, Ajit Fontenot, Jerod Hall, Travis |
author_facet |
Sasaki, Tsubasa Park, Jinho Soga, Kenichi Momoki, Taichi Kawaguchi, Kyojiro Muramatsu, Hisashi Imasato, Yutaka Balagopal, Ajit Fontenot, Jerod Hall, Travis |
author_sort |
Sasaki, Tsubasa |
title |
Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
title_short |
Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
title_full |
Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
title_fullStr |
Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
title_full_unstemmed |
Distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
title_sort |
distributed fibre optic strain sensing of an axially deformed well model in the laboratory |
publisher |
eScholarship, University of California |
publishDate |
2019 |
url |
https://escholarship.org/uc/item/9181g9bb |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
qt9181g9bb https://escholarship.org/uc/item/9181g9bb |
op_rights |
public |
_version_ |
1789968413387390976 |