Study of the stability of methane hydrates in normal conditions

A method developed to increase technological and ecological efficiency of gas production from hydrate deposits

“…When using the obtained results in practice, it is also necessary to take into account the effect of self-conservation [16] and heat loss during the movement of gases and solutions in the columns of the well.…”

“…For the extraction pressure in the gas hydrate layer (6) to be equal to or above the pressure of the water saturated with gas, the working pressure in the ejector pump (9) is maintained so that the gas does not get separated from the water. Water with dissolved gas begins to penetrate into the annular space (16) and moves towards the ejector pump (9).…”

“…This regulates the compensation of the heat that is absorbed in the endothermic reaction of the decomposition of gas hydrates. The coolant, having performed its function, gets mixed with the liquid phase of the gas hydrate and enters the annular space (16), moving towards the ejector pump (9). In the ejector pump (9), the well output, together with the coolant, mixes with the working fluid of the ejector pump (9) and then enters the annular space (12) by which the whole mixture rises to the surface of the platform (2).…”