Low efficiency of gas condensate field development in the Republic of Sakha (Yakutia) is noted. Field characteristics of the main production facility of the Srednevilyui gas condensate field are presented, indicating the imminent onset of the next stage of development using booster compressor stations. The expediency of extending the non-compressor stage of field development by maintaining reservoir pressure is indicated. Information about geological structure, features of oil and gas content and hydrogeological characteristics of the field and the region is presented. A conclusion is made about the relatively low mineralization of formation waters of the Lower Triassic productive horizon and the high content of dissolved gas in it. An unconventional multiplicative method of maintaining reservoir gas with the connection of the process of active degassing of formation water is proposed. The resource potential of dissolved gas in formation waters of the transition zone is shown by calculation. Water mineralization options based on the Kempendyai salt deposit are considered. The most favorable section of the deposit for injecting mineralized water into the layer is substantiated.