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Estimation of Gas Hydrates in the Pore Space of Sediments Using Inversion Methods

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World Atlas of Submarine Gas Hydrates in Continental Margins
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Abstract

Gas hydrates form in marine sediments when there is enough gas and water present and the temperature/pressure conditions allow for stability. The formation of gas hydrates changes the composite physical properties of the sediment, including: porosity, permeability, stiffness, and both thermal and electric conductivity. These parameters can, therefore, be used to estimate the amount of hydrate present. Bottom simulating reflectors mark the base of gas hydrate stability zones, impacting the reflection amplitudes within gas hydrate-bearing sediments. This is another important indicator used to estimate the properties of hydrate-bearing sediments at and above the bottom simulating reflector, as they are dependent on hydrate saturation. These different parameters can be simultaneously inverted to acquire more robust measurements of hydrate saturation.

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Correspondence to Shyam Chand .

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Chand, S. (2022). Estimation of Gas Hydrates in the Pore Space of Sediments Using Inversion Methods. In: Mienert, J., Berndt, C., Tréhu, A.M., Camerlenghi, A., Liu, CS. (eds) World Atlas of Submarine Gas Hydrates in Continental Margins. Springer, Cham. https://doi.org/10.1007/978-3-030-81186-0_5

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