Abstract:

The authors explore the potential of gas hydrates as a source of energy. They discuss the methods for gas production from gas hydrates, which is widely available in permafrost and oceanic sediments. These hydrocarbon deposits have stimulated worldwide

efforts to understand gas production from hydrate dissociation in hydrate reservoir wells. According to formation conditions of gas hydrates, the production of gas hydrates can only be done through thermal injection, inhibitor injection, or depressurization.

In order to quantitatively assess gas production of natural gas hydrate reservoirs, a gas hydrate exploration well was used as an example to derive the gas volume produced from hydrate reservoir wells by using mathematical methods. The results show that

in gas hydrate reservoirs, the gas volume released from reservoir wells is a sensitive function of temperature and pressure of the boreholes and permeability of the gas hydrate. The function can be used to calculate gas volume produced from gas hydrate

wells and to evaluate the recoverability of gas hydrate reservoirs.