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Measuring the geotherm with gas hydrate bottom-simulating reflectors: a novel approach using three-dimensional seismic data from the eastern Black Sea

Measuring the geotherm with gas hydrate bottom-simulating reflectors: a novel approach using three-dimensional seismic data from the eastern Black Sea
Measuring the geotherm with gas hydrate bottom-simulating reflectors: a novel approach using three-dimensional seismic data from the eastern Black Sea
Gas hydrate-related bottom-simulating reflectors mark the phase boundary between hydrate and free gas in the subsurface, and therefore may be used to estimate geothermal gradients and hence heat flow. The depth and temperature of the phase boundary depend on the composition of the hydrate-forming gas and of the pore fluid. In the absence of direct sampling, these compositions remain unknown. We develop an alternative approach that is less sensitive to compositional uncertainties and can be applied when the bottom-simulating reflector is densely sampled in a region with significant seabed relief. We apply this approach to a three-dimensional seismic dataset from the eastern Black Sea
131-136
Minshull, Timothy A.
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Keddie, Aaaron
daaf29dd-2fab-433d-8ddc-be0f875f9359
Minshull, Timothy A.
bf413fb5-849e-4389-acd7-0cb0d644e6b8
Keddie, Aaaron
daaf29dd-2fab-433d-8ddc-be0f875f9359

Minshull, Timothy A. and Keddie, Aaaron (2010) Measuring the geotherm with gas hydrate bottom-simulating reflectors: a novel approach using three-dimensional seismic data from the eastern Black Sea. Terra Nova, 22 (2), 131-136. (doi:10.1111/j.1365-3121.2010.00926.x).

Record type: Article

Abstract

Gas hydrate-related bottom-simulating reflectors mark the phase boundary between hydrate and free gas in the subsurface, and therefore may be used to estimate geothermal gradients and hence heat flow. The depth and temperature of the phase boundary depend on the composition of the hydrate-forming gas and of the pore fluid. In the absence of direct sampling, these compositions remain unknown. We develop an alternative approach that is less sensitive to compositional uncertainties and can be applied when the bottom-simulating reflector is densely sampled in a region with significant seabed relief. We apply this approach to a three-dimensional seismic dataset from the eastern Black Sea

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Published date: 21 February 2010

Identifiers

Local EPrints ID: 148469
URI: http://eprints.soton.ac.uk/id/eprint/148469
PURE UUID: bd183748-16f7-481c-b8f9-c6b9e3fdec69
ORCID for Timothy A. Minshull: ORCID iD orcid.org/0000-0002-8202-1379

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Date deposited: 28 Apr 2010 09:07
Last modified: 14 Mar 2024 02:43

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Author: Aaaron Keddie

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