Currently, to determine the productive characteristics and diagnose the state of the bottomhole zone of wells (BHZ) operating the gas condensate deposits of the Beregovoye field, studies are being carried out, which include a set of interrelated methods that differ in theoretical basis, technology and execution technique. The purpose of these studies is to obtain information on the thermobaric parameters of the formation fluid in the reservoir, on the productive characteristics of wells, on the filtration-volumetric and mechanical properties of the porous medium. In this case, the curve of the derivative of the pressure drop at the bottom of the well with respect to the logarithm of time, built in two logarithmic axes, is widely used. To construct this diagnostic curve, three types of data are used: pressure recovery curve (HPC); pressure stabilization curve at constant well flow rate and studies with arbitrary change in flow rate and bottomhole pressure. Using the curve of the derivative of the pressure drop over the logarithm of time, a very wide range of possible structure of the wellbore area, the shape of its drainage boundaries, fractures, double media, etc., is diagnosed. When determining the productive characteristics during the development of the reservoir, the nature of the pressure change over the reservoir area was studied. The frequency of measurement of reservoir pressure by wells was established taking into account the geological features of the Beregovoye field and the rate of formation gas withdrawal from the reservoir.

This article assesses the prospects for the use of geological and technical measures related to the creation of non-traditional methods. The essence of which is not only high manufacturability, but also energy saving with a significant expansion of geological criteria for their applicability. Hydraulic fracturing is widely used in wells operating an oil reservoir, which in most cases is proved theoretically and practically. According to the results of geological field analysis, it was found that for the conditions of development of deposits of the Krasnoleninsky field, the introduction of hydraulic fracturing into wells is a tool, the reuse of which, regardless of the current water cut, will help to increase the productivity of production wells. A further increase in the efficiency of work is associated with their complex organization in a reasonable combination of well operating modes, hydraulic fracturing technologies, and optimization of the waterflooding system.

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At present, publications devoted to modern experimental equipment are widely used in domestic and foreign scientific journals aimed at specialists in the field of hydrocarbon processing. Thus, the installation of PVT ratios from Chandler Engineering allows us to conduct research in a wide range of pressures and temperatures and determine the phase processes of hydrocarbons. In the experimental work performed with natural mixtures and reservoir gas condensate systems, a pattern was found. At high reservoir pressures and temperatures, condensates are characterized by an increased content of high molecular weight hydrocarbons of complex structure, which affects phase processes. The parameters and indicators determined on this installation are the initial ones for calculating the balance reserves of ethane, propane, butane, non-hydrocarbon components in the formation gas, designing development and field development, as well as further processing of condensate. The main goal of the work is to determine the effect of contact condensation, which manifests itself when the deposits are unevenly developed by the area of the field on the development of hydrocarbon reserves based on experimental thermodynamic studies.

The article presents the results of the study of the geological structure of oil and gas deposits in Botuobinsky horizon, affecting the gasification of producing wells and gas breakthrough into the oil rim in the conditions of field development. In the course of the research, a characteristic of the reservoir was given, and the optimal gas-free flow rate was determined by a computational method, which allows us to limit the gas inflow for the operating conditions of the Srednebotuobinskoye oil and gas condensate field. The field under consideration is one of the unique storehouses of the East-Siberian oil cluster located in the Republic of Sakha (Yakutia). The main factors influencing the effective development of oil reserves of gas and oil deposits within the Central block and the Kurung license area are substantiated.