T R Egorova¹ and N A Sivtsev²

¹ 2nd year master’s student of Institute of Natural Sciences, M.K. Ammosov NorthEastern Federal University, Russia

² 3rd year bachelor’s degree student of the Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, Russia

Abstract

The article deals with the problem of the reliability of the balance gas reserves of the Vilyui oil and gas region calculated by the volumetric method. Based on the analysis of the development of gas and gas condensate fields of the Predverkhoyansk and Vilyui oil and gas bearing regions, the low production capabilities of the depleted fields of the region are shown. It is concluded that the most reliable in the conditions of a complex geological structure of deposits is the assessment of gas reserves by the pressure drop method. The idea is formulated that for the fields of the Vilyui oil and gas bearing area, which have productive horizons with low initial gas saturation of reservoirs, the final gas recovery factors can be estimated at 0.55. The expediency of considering the issue of the special status of the Srednevilyui gas condensate field as a field with strategic gas reserves is noted.