A5032179953- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Seismology and Earthquake Studies
University of Edinburgh
2021
Evaluation of seismic reflection data has identified the presence fluid escape structures cross-cutting overburden stratigraphy within sedimentary basins globally. Seismically-imaged chimneys/pipes are considered to be possible pathways for flow, which may hydraulically connect deeper strata seabed. The properties migration through must constrained enable secure, long-term subsurface carbon dioxide (CO2) storage. We have investigated a site natural active in North Sea, Scanner pockmark...
<p>Gas chimneys are locations where natural gas leaks from the subsurface causing seabed pockmarks and potentially creating leakage pathways CO<sub>2</sub> storage or other reservoirs. The CHIMNEY project seeks evidence of changes in anisotropy between a chimney surrounding sediments, which would corroborate theories on permeability being caused by fractures.</p><p>Twenty-five ocean bottom seismometers (OBSs) were placed...