Physical Properties of Gas Hydrate-Bearing Pressure Core Sediments in the South China Sea

Figure 2

(a) comparison of the pressure and temperature conditions with the gas hydrate phase diagram. Pink line: phase boundary of methane hydrates within a 3.5 wt% NaCl solution [8]. Black line: deployment of the pressure coring system, including from the vessel to the seafloor, within the borehole, from the seafloor back to the vessel, and from the deck to the lab. Blue line: within the PCATS for the entire triaxial test. Red line: degassing of the pressure core. (b) Temperature and pressure variations of the core with time.

(a)

(b)