Distributed acoustic sensing and 4D seismic time-strain inversion for subsurface monitoring
Abstract
Subsurface monitoring plays an important role in utilising subsurface resources and preventing geologic hazards. This thesis comprises dissemination of the research in using seismic methods for subsurface monitoring. Here I demonstrate various applications of ocean-bottom fibre-optic distributed acoustic sensing (DAS) technology to marine seismic exploration and subsurface monitoring using active and passive seismic sources. These include conventional marine seismic sources, whale vocalisations and subsurface shear-wave resonance. In addition, I develop a new time-lapse (4D) seismic method based on traveltime, called “4D seismic time-strain inversion,” to monitor the time-lapse changes in geophysical properties of the subsurface. This method can determine the subsurface changes without prior knowledge nor assumption about geomechanical properties in the field of interest. All the research work done in this thesis could contribute to the advancement of fibre-optic DAS and 4D seismic technologies for subsurface monitoring.
Has parts
Paper 1: Taweesintananon, Kittinat; Landrø, Martin; Brenne, Jan Kristoffer; Haukanes, Aksel. Distributed acoustic sensing for near-surface imaging using submarine telecommunication cable: A case study in the Trondheimsfjord, Norway. Geophysics 2021 ;Volum 86.(5) s. B303-B320 https://doi.org/10.1190/geo2020-0834.1 © 2021 Society of Exploration GeophysicistsPaper 2: Bouffaut, Léa; Taweesintananon, Kittinat; Kriesell, Hannah Joy; Rørstadbotnen, Robin André; Potter, John; Landrø, Martin; Johansen, Ståle Emil; Brenne, Jan Kristoffer; Haukanes, Aksel; Schjelderup, Olaf; Storvik, Frode. Eavesdropping at the Speed of Light: Distributed Acoustic Sensing of Baleen Whales in the Arctic. Frontiers in Marine Science 2022 ;Volum 9. https://doi.org/10.3389/fmars.2022.901348 This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)
Paper 3: Taweesintananon, Kittinat; Landrø, Martin; Potter, John Robert; Johansen, Ståle Emil; Rørstadbotnen, Robin Andre; Bouffaut, Léa; Kriesell, Hannah Joy; Brenne, Jan Kristoffer; Haukanes, Aksel; Schjelderup, Olaf; Storvik, Frode. Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway. Geophysics 2023 ;Volum 88.(3) s. B135-B150 https://doi.org/10.1190/geo2022-0435.1 © 2023 Society of Exploration Geophysicists
Paper 4: Taweesintananon, Kittinat; Landrø, Martin; Narongsirikul, Sirikarn; Folstad, Per Gunnar. Angle-dependent 4D seismic time-strain inversion for estimating subsurface thickness and velocity changes - Publisher version is available at https://doi.org/10.1190/geo2023-0357.1 or https://library.seg.org/doi/10.1190/geo2023-0357.1.