Geomechanical analysis of initial stage of gas production from interbredded hydrate-bearing sediment

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Abstract

Geomechanical stability of marine hydrate reservoirs during gas production by depressurization is the focus of this study. The reservoir considered here consists of thin hydrate rich sandy layers interbedded with mud layers. Because of the input parameter uncertainties involved, it is prudent from a geomechanical perspective to estimate the likely bounds of potential responses. A decoupled approach is presented herein for which the pressure and hydrate saturation in the sediments during gas production are obtained from multiphase flow computation, but could also be synthesized from various scenarios. This procedure is illustrated with sample problems.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Geomechanical analysis of initial stage of gas production from interbredded hydrate-bearing sediment
Year Published 2017
Language English
Publisher NETL
Contributing office(s) Woods Hole Coastal and Marine Science Center
Description 6 p.
Conference Title 9th International Conference on Gas Hydrates
Conference Location Denver, CO
Conference Date June 25-30, 2017