Figure 1
From: Acoustic characterization for creep behaviors of marine sandy hydrate-bearing sediment
Photograph of the experimental device (left) and 3D diagrams of the high-pressure vessel (right). The system is composed of a data-collection system, a confining pressure control system, a step-in temperature control system, a methane supplier, an axial loading system, and a high-pressure vessel. The high-pressure vessel is the main space for hydrate-bearing sample preparation and creep test. The time-stress–strain curves are obtained by the axial loading module. Additional ultrasonic transducers are equipped at each side of the sample in the height-direction to measure acoustic signals during hydrate formation and creep test.
