SIMPLE SOLUTIONS FOR SAFE AND EFFICIENT WELL GEOLOGY STUDIES IN THE REPUBLIC OF SAKHA (YAKUTIA)
The purpose of the article is to identify the simplest solutions for the safe and efficient production of work on the study of well geology in the Republic of Sakha (Yakutia). The article provides basic information about the geological structure of oil and gas deposits in the Russian Federation, which is characterized by a specific stratigraphic, formational and phase-chemical range of oil and gas potential with a variety of deep conditions, which predetermines the distribution, composition and operating conditions of hydrocarbon deposits. The study materials were data on the features of the geology of wells in the Republic of Sakha (Yakutia), while using the methods of generalization, systematization and analysis of scientific literature on the research issues. Simple solutions were identified for the safe and efficient execution of well geology surveys in the Republic of Sakha (Yakutia). It is shown that the development of well fields in the Republic of Sakha (Yakutia) in modern conditions requires the construction of new production wells to prevent contamination of the bottomhole formation zone during fastening and ensure reliable isolation of the annulus. This can be achieved by using lightweight and light cement slurries, which make it impossible for a large drawdown on the reservoir and the risk of unforeseen losses of the cement slurry and hydraulic fracturing in the reservoir.