Legoix, Ludovic, Kossel, Elke , Deusner, Christian , Ruffine, Livio and Haeckel, Matthias (2018) Physicochemical Properties of Gas Hydrate‐bearing Sediments. In: Gas Hydrates 2: Geoscience Issues and Potential Industrial Applications. , ed. by Ruffine, Livio, Broseta, Daniel and Desmedt, Arnaud. John Wiley & Sons, Newark, pp. 121-164. DOI 10.1002/9781119451174.ch8.

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Abstract

This chapter talks about physicochemical properties of gas hydrate‐bearing sediments. Lab‐based experiments are the most cost‐effective and systematic approach to evaluate physicochemical properties and behavior of gas hydrate‐bearing sediments in a systematic way. Physicochemical property studies were largely focused on measurements with respect to homogeneous and reproducible gas hydrate distributions. The chapter includes overviews of thermodynamic and kinetic constraints of relevant processes of gas hydrate formation, dissociation and conversion, fluid transport in gas hydrate‐bearing sediments, thermal and electrical properties and distribution of gas hydrates. It reviews some flow‐through experimental systems and procedures for studying the behavior of gas hydrate‐bearing sediments with different research objectives. The chapter provides a brief overview on available systems for high‐resolution online fluid monitoring, as well as tools for a destruction‐free analysis of the multiphase sample with emphasis on tomographic techniques.

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