Shear Behavior of Methane Hydrate Bearing Sands during Gas Production

摘要

A series of mechanical tests were performed on methane hydrate bearing sediments with various host sands by using temperature controlled high stress triaxial shear testing apparatus. A high pressure and low temperature plane strain testing apparatus was also developed for visualizing the deformation of methane hydrate bearing sand due to methane hydrate production. Using this testing apparatus, plane strain compression and methane hydrate dissociation by depressurization tests were performed with the measurement of localized deformation.