METHOD FOR GAS PRODUCTION FROM GAS-HYDRATE DEPOSITS

摘要

The invention relates to gas producing, in particular to gas production from gas hydrate deposits. One forms wells to bottom of gas hydrate layer. Collector rock jointing of layer is formed by directed hydraulic fracturing. With use of gaslift with periodical effect warm water is sucked to layer through pumping out from under-hydrate cavity gas and water under pressure lower than pressure of formation of gas hydrates. Gas liberated from gas hydrates is directed to mouth separator of well and through control valve is goes to collection reservoir. It can be used for gas lift. Water from separator is pumped out to open sea. The invention promotes decrease of power consumption for gas hydrate heating and gas liberation.