CATASTROPHIC GAS HYDRATE GROWTH UNDER SHUT-IN AND COLD START UP CONDITIONS

SUNDRAMOORTHY, JEGA DIVAN (2015) CATASTROPHIC GAS HYDRATE GROWTH UNDER SHUT-IN AND COLD START UP CONDITIONS. Masters thesis, Universiti Teknologi PETRONAS.

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Abstract

In this present work, capillary aided catastrophic gas hydrate growth is observed
under shut-in and cold start-up conditions employing newly fabricated customized
apparatus, consisting of six units of identical rocking gas hydrate cell. The
observation of a capillary-aided mass-transport mechanism for a catastrophic hydrate
growth with and without kinetic hydrate inhibitor is presented. Visual observation
shows that the hydrate crystal formation at the brine wetted area close to the brine/gas
interface initiates capillary-aided catastrophic hydrate growth. Moreover, no masstransfer
restriction of brine towards catastrophic gas hydrate growth is observed. The
capillary force may provide a greater driving force to form gas hydrates than the
diffusion rate of gasses into the bulk water phase. It is also found that the production
profiles such as different shut-in time and capillary aided water transport influences
the produce water to grow hydrate in distinctive ways.

Item Type: Thesis (Masters)
Subjects: T Technology > TP Chemical technology
Departments / MOR / COE: Engineering > Chemical
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Sep 2021 21:13
Last Modified: 18 Sep 2021 21:13
URI: http://utpedia.utp.edu.my/id/eprint/21425

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