LI Gang, LI Xiaosen, TANG Liangguang, et al. Experimental investigation of production behavior of methane hydrate under ethylene glycol injection[J]. CIESC Journal, 2007, (8): 2067-2074.
LI Gang, LI Xiaosen, TANG Liangguang, et al. Experimental investigation of production behavior of methane hydrate under ethylene glycol injection[J]. CIESC Journal, 2007, (8): 2067-2074.DOI:
This paper investigates the flow characteristics of dissociated methane gas and water from methane hydrate (MH) by ethylene glycol (EG) injection in porous sediments by utilizing a one-dimensional experimental apparatus.With the developed apparatus
the experiment was run for hydrate dissociation with the chemical inhibitor stimulation method by injecting EG solution with different concentrations and rates.The experimental result suggested that the gas production process was generally divided into four steps: initial injection
chemical inhibitor dilution
hydrate dissociation
production of remaining gas.However
the water production rate keeps nearly constant during the whole production process.Under the experimental condition
the production efficiency was affected by both EG concentration and injection rate
and it reached a maximum with the EG concentration of 60%(mass).