Data-driven time-frequency method and its application in detection of free gas beneath a gas hydrate deposit
The time-frequency (TF) analysis method plays a significant role in the detection of natural
gas hydrates. As a data-driven method, compressed sensing (CS) has been widely used in …
gas hydrates. As a data-driven method, compressed sensing (CS) has been widely used in …
Spatial changes in gas transport and sediment stiffness influenced by regional stress: Observations from piezometer data along Vestnesa Ridge, eastern Fram Strait
Gas transport through sediments to the seabed and seepage occurs via advection through
pores, faults, and fractures, and as solubility driven gas diffusion. The pore pressure gradient …
pores, faults, and fractures, and as solubility driven gas diffusion. The pore pressure gradient …
Local seismicity and sediment deformation in the west Svalbard margin: Implications of neotectonics for seafloor seepage
P Domel, A Plaza‐Faverola… - Geochemistry …, 2023 - Wiley Online Library
Abstract In the Fram Strait, mid‐ocean ridge spreading is represented by the ultra‐slow
system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments …
system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments …
Constraints on gas hydrate distribution and morphology in Vestnesa Ridge, western Svalbard margin, using multicomponent ocean‐bottom seismic data
S Singhroha, S Chand, S Bünz - Journal of Geophysical …, 2019 - Wiley Online Library
Gas hydrates occur within sediments on the western Svalbard continental margin and the
Vestnesa Ridge, a large sediment drift that extends in a west‐northwest direction from the …
Vestnesa Ridge, a large sediment drift that extends in a west‐northwest direction from the …
Detection of gas hydrates in faults using azimuthal seismic velocity analysis, Vestnesa Ridge, W‐Svalbard Margin
S Singhroha, S Bünz… - … Research: Solid Earth, 2020 - Wiley Online Library
Joint analysis of electrical resistivity and seismic velocity data is primarily used to detect the
presence of gas hydrate‐filled faults and fractures. In this study, we present a novel …
presence of gas hydrate‐filled faults and fractures. In this study, we present a novel …
Characterization of coexistence of gas hydrate and free gas using sonic logging data in the Shenhu Area, South China Sea
L Zhan, D Kang, H Lu, J Lu - Journal of Natural Gas Science and …, 2022 - Elsevier
Recent studies have confirmed the coexistence of gas hydrate (GH) and free gas (FG) in gas
hydrate stability zone (GHSZ). However, the acoustic properties of the coexisting sediment …
hydrate stability zone (GHSZ). However, the acoustic properties of the coexisting sediment …
Seismic attenuation from ambient noise across the North Sea Ekofisk permanent array
C Allmark, A Curtis, E Galetti… - Journal of Geophysical …, 2018 - Wiley Online Library
Quality factor (Q) or equivalently attenuation describes the amount of energy lost per cycle
as a wave travels through a medium. This is important to correct seismic data amplitudes for …
as a wave travels through a medium. This is important to correct seismic data amplitudes for …
Frenulate siboglinids at high Arctic methane seeps and insight into high latitude frenulate distribution
Frenulate species were identified from a high Arctic methane seep area on Vestnesa Ridge,
western Svalbard margin (79° N, Fram Strait) based on mitochondrial cytochrome oxidase …
western Svalbard margin (79° N, Fram Strait) based on mitochondrial cytochrome oxidase …
Diffraction imaging for seal evaluation using ultra high resolution 3D seismic data
Cap rock is any impermeable or low permeability formation that may trap oil, gas or water,
preventing it from migrating to the surface. Evaluation of sealing properties of the cap rock is …
preventing it from migrating to the surface. Evaluation of sealing properties of the cap rock is …
Evaluation and modeling of velocity dispersion and frequency-dependent attenuation in gas hydrate-bearing sediments
L Zhan, J Matsushima, H Liu, H Lu - Marine and Petroleum Geology, 2025 - Elsevier
Wave velocity and attenuation of gas hydrate-bearing samples are often extrapolated from
ultrasonic to lower seismic/sonic frequencies, but the impact of measurement frequency on …
ultrasonic to lower seismic/sonic frequencies, but the impact of measurement frequency on …