OceanRep
Electromagnetic Applications in Methane Hydrate Reservoirs.
Schwalenberg, Katrin and Jegen, Marion (2022) Electromagnetic Applications in Methane Hydrate Reservoirs. In: World Atlas of Submarine Gas Hydrates in Continental Margins. , ed. by Mienert, J., Berndt, Christian , Tréhu, A. M., Camerlenghi, A. and Liu, C. S.. Springer, Cham, pp. 73-85. DOI 10.1007/978-3-030-81186-0_6.
Text
Schwalenberg-Jegen.pdf - Published Version Restricted to Registered users only Download (1MB) |
Abstract
Marine electromagnetic methods provide useful and independent measures for the identification and quantification of submarine gas hydrates. The resistivity of seafloor sediments, drawn from area-wide electromagnetic data, mainly depends on the sediment porosity and the nature of the pore fluid. Gas hydrates and free gas are both electrically resistive. The replacement of saline water, thus conductive pore water with resistive gas hydrate or free gas, increases the sediment resistivity and can be used to provide accurate saturation estimates if the background lithology is known. While seismic methods are predominantly used to study the distribution of submarine gas hydrates, a growing number of global field studies have demonstrated that the joint interpretation of marine seismic and electromagnetic methods improves the evaluation of submarine gas hydrate targets. This article discusses the relationship between resistivity and free gas/gas hydrate saturation levels, how the resistivity of the sediment may be measured and summarizes the status and results of current and past field studies.
Document Type: | Book chapter |
---|---|
Keywords: | Marine electromagnetics, methane hydrates,methane hydrate quantification |
Research affiliation: | OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics |
Main POF Topic: | PT8: Georesources |
Publisher: | Springer |
Date Deposited: | 19 Jan 2022 14:13 |
Last Modified: | 20 Jan 2022 12:54 |
URI: | https://oceanrep.geomar.de/id/eprint/54914 |
Actions (login required)
View Item |
Copyright 2023 | GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel | All rights reserved
Questions, comments and suggestions regarding the GEOMAR repository are welcomed
at bibliotheksleitung@geomar.de !