The application of nitrogen to increase gas recovery from depleten gas deposits
Keywords:deposit, well, gas, nitrogen, displacement, injection, production and separation of nitrogen.
The research results on residual natural gas displacement from depleted gas deposits by various non-hydrocarbon gases are analyzed. The use of nitrogen for this purpose is proved. The research results and industrial experience in obtaining nitrogen from air and purifying nitrogen from the products of gas production wells in case of nitrogen injection into depleted gas deposits to increase gas recovery are summarized.