METHOD OF CREATION AND ADAPTATION THERMOHYDRODYNAMIC MODELS OF DEVELOPMENT TURONIAN GAS DEPOSITS BASED ON HYDRODYNAMIC MODELS OF ISOTHERMAL FILTRATION FOR PREDICTION THERMOBARIC CONDITIONS OF HYDROCARBON RAW MATERIALS DURING THEIR DEVELOPMENT

Abstract

The current high rates of exploration and involvement in thedevelopment of hard-to-recover natural gas reserves associated with theTuronian deposits require an increase in the level of digitalization ofdevelopment, including the development of means to ensure integratedintegrated design and forecasting of development processes. The articledescribes the developed methodology for the creation and adaptation ofthermohydrodynamic models for the development of Turonian gasdeposits based on hydrodynamic models of isothermal filtration to predictthe thermobaric conditions of hydrocarbon raw materials duringtheir development. The main advantages of the thermohydrodynamicmodel include the ability to use it to solve applied and practical tasks forthe design of development and monitoring of its implementation. Inparticular, it is possible to assess the impact of the hydrate formationprocess on changes in the productivity of producing wells, develop proposalsfor optimizing the applied methods of gas-dynamic studies andinterpreting data taking into account the risk of hydrate precipitation inunacceptable operating modes, justify the maximum and maximumdepressions during the entire development period for existing and projectwells to control the thermobaric conditions of hydrate formation andprevent the formation of hydrates in well completion system. Taking intoaccount the urgency of the issue of import substitution, the developedmethodology was implemented and tested using the domestic tNavigatorhydrodynamic simulator. The stage of analysis of initial data (fluid data,core research data, geological and field data on wells) is described, thebasic concepts of thermohydrodynamic modeling of development (thermalconductivity, Fourier law, enthalpy, internal energy, entropy, Joule-Thomson effect) are given, the stage of integration of the thermal optioninto the isothermal filtration model is described, approaches are presentedto adapt the thermohydrodynamic model to the actual geologicaland field data, the evaluation and analysis of the results obtained werecarried out.