Topical issues concerning the possibilities of effective development of unconventional gas fields, in particular gas hydrate as an element of Ukraine’s energy security, are covered. Attention is drawn to the need for an integrated approach to the development of unconventional hydrocarbon deposits using project management methods. The main challenges, opportunities, scenarios of energy security of Ukraine are studied. Priority tasks in the gas sector are analyzed in accordance with the implementation of the New Energy Strategy of Ukraine for the period up to 2035 at the stage “Optimization and innovative development of energy infrastructure (until 2025)” and “Ensuring sustainable development (until 2035)”. Peculiarities of development of unconventional hydrocarbon deposits at each stage of management – discovery, evaluation, development, production and closure of the project are determined. The purpose of the article is a comprehensive substantiation of organizational and technological decisions to increase the efficiency of development of offshore gas hydrate fields in comparison with other unconventional gas fields.

The article examines the current problems of the development and modernization of the Ukrainian national gas transmission system in the context of the implementation of the main strategic tasks (according to the New Energy Strategy of Ukraine) and a number of provisions regulating the legal basis of the functioning of the natural gas market of Ukraine (in particular, the Law of Ukraine "On the Natural Gas Market"). However, Russia's invasion of Ukraine not only made it impossible to fulfill these tasks, but also led to the disruption of the global energy market and the world energy security system. Today, there is an urgent need to transform Europe's energy system, coordinate planning and financing of cross-border and national infrastructure, as well as the development and implementation of a large number of various energy projects.The need for a new approach to EU-wide infrastructure planning based on regional cooperation with Member States and relevant stakeholders to identify projects of common interest (PCIs) that contribute to the development of energy infrastructure priority corridors and thematic areas is proven. It is justified that the possibilities of transportation and storage of renewable gases (hydrogen, biomethane and synthetic methane) become one of the priority tasks for Ukraine, which offers itself to Europe as a promising and reliable partner.

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