Numerical simulations of sand production in interbedded hydrate-bearing sediments during depressurization

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Abstract

Geomechanical behavior of hydrate-bearing sediments during gas production is complex, involving changes in hydrate-dependent mechanical properties. When interbedded clay layers are present, the complexity is more pronounced because hydrate dissociation tends to occur preferentially in the sediments adjacent to the clay layers due to clay layers acting as a heat source. This would potentially lead to shearing deformation along the sand/clay contacts and may contribute to solid migration, which hindered past field-scale gas production tests. This paper presents a near-wellbore simulation of sand/clay interbedded hydrate-bearing sediments that have been subjected to depressurization and discusses the effect of clay layers on sand production.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Numerical simulations of sand production in interbedded hydrate-bearing sediments during depressurization
Year Published 2017
Language English
Contributing office(s) Central Energy Resources Science Center
Description 10 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Proceeding of the 9th International Conference on Gas Hydrates
Conference Title 9th International Conference on Gas Hydrates
Conference Location Denver, CO
Conference Date June 25-30, 2017