Potential applications of distributed optical fiber sensor in hydrate-induced sedimentary deformation research

Teng, Ying1,2,3; Wang, Pengfei4,5,6; Zhou, Yabin7; Wei, Yang1

2021-11-01

10.1002/ese3.1016

ENERGY SCIENCE & ENGINEERING   影响因子和分区

2050-0505

Natural gas hydrate is regarded as a potential clean energy source. However, hydrate phase transition during gas production leads to significant hydrate-bearing sedimentary layer deformation, which is one of the main obstacles for safe hydrate exploitation. In this study, distributed optical fiber sensors were used to examine the porous medium deformation induced by phase change and verify its feasibility for application in hydrate research. Experiments on ice formation in a porous medium were conducted to mimic the hydrate formation in sediments. Optical fiber sensors were used to record and analyze the strain characteristics caused by the deformation of porous medium during the phase change process. The frequency shift during the cooling process shows that the fiber segment sensitivity is influenced by its initial length and tightness. In experiments with porous medium, the strain caused by the phase change exhibited a linear trend. In a comparative experiment using pure water, the strain caused by the phase change showed a nonlinear trend. The results indicate that the porous medium deformation induced by phase change can be accurately evaluated using strain data from distributed optical fiber sensors. The strain results also reflect the rate of the phase change. This study proves that the distributed optical fiber sensor has the potential to clarify the deformation characteristics of porous medium caused by hydrate phase change.

distributed fiber sensor gas hydrate strain

SCI ; EI

英语

通讯

National Natural Science Founding of China[52106092,52006118] ; Department of Science and Technology of Guangdong Province[2019ZT08G315] ; Guangdong Province Basic and Applied Basic Research Fund Project[2019A1515110855] ; Young Innovative Talents Project in Ordinary Universities in Guangdong Province[2019KQNCX134] ; Shenzhen Clean Energy Research Institute[CERI-KY-2019-003] ; Shenzhen Key Laboratory of Natural Gas Hydrates[ZDSYS20200421111201738] ; Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education["LOEC-201901","LOEC-201902"]

Energy & Fuels

Energy & Fuels

WOS:000718346600001

WILEY

20214711196587

Deformation ; Fiber optic sensors ; Gas hydrates ; Hydration ; Optical fibers

Natural Gas Deposits:512.2 ; Gas Fuels:522 ; Fiber Optics:741.1.2 ; Materials Science:951

Web of Science

1.Shenzhen Univ, Inst Adv Study, Shenzhen, Peoples R China
2.Shenzhen Univ, Guangdong Prov Key Lab Deep Earth Sci & Geotherma, Shenzhen, Peoples R China
3.Shenzhen Univ, Coll Civil & Transportat Engn, Inst Deep Earth Sci & Green Energy, Shenzhen Key Lab Deep Engn Sci & Green Energy, Shenzhen, Peoples R China
4.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
5.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Peoples R China
6.Southern Univ Sci & Technol, Shenzhen Key Lab Nat Gas Hydrates, Shenzhen, Peoples R China
7.Zaspor Guangdong IOT Technol Co Ltd, Guangzhou, Peoples R China

Teng, Ying,Wang, Pengfei,Zhou, Yabin,et al. Potential applications of distributed optical fiber sensor in hydrate-induced sedimentary deformation research[J]. ENERGY SCIENCE & ENGINEERING,2021,10:4-12.

Teng, Ying,Wang, Pengfei,Zhou, Yabin,&Wei, Yang.(2021).Potential applications of distributed optical fiber sensor in hydrate-induced sedimentary deformation research.ENERGY SCIENCE & ENGINEERING,10,4-12.

Teng, Ying,et al."Potential applications of distributed optical fiber sensor in hydrate-induced sedimentary deformation research".ENERGY SCIENCE & ENGINEERING 10(2021):4-12.