Recovery of methane from hydrate reservoir with gaseous carbon dioxide using a three-dimensional middle-size reactor

Review of natural gas hydrates as an energy resource: Prospects and challenges

“…aquifer), and Class III (no underlying mobile zone) [174][175][176]. To identify how suitable each classes of hydrate reservoir is for the replacement process, the replacement efficiencies of three different types of hydrate samples: high gas saturation, high water saturation and high methane hydrate saturation were investigated in a 7 L reactor [177]. The methane hydrate sample was prepared with 3.35 wt.% of Na 2 SO 4 and 20-40 mesh quartz sands with a porosity of 38.7%.…”

Evaluation of gas production from methane hydrates using depressurization, thermal stimulation and combined methods

“…Currently, various methods of gas production from hydrate reservoirs have been proposed, and most methods are based on breaking the phase equilibrium of gas hydrate, mainly through depressurization method, thermal stimulation method, inhibitor injection method, carbon dioxide replacement method, etc. [5][6][7]. The obvious gas production approaches involve depressurization, heating and combined methods [8].…”

Review of exploration and production technology of natural gas hydrate

“…It means CO 2 hydrate is more stable than CH 4 hydrate under the same condition of temperature and pressure (Li et al, 2016). Yuan (2012) proposed a conceptual mechanism for CO 2 -CH 4 replacement in hydrate-bearing sediments.…”