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Hydrocarbon prospects in the Dniepr-Donets Basin, Ukraine, and the Ukrainian Carpathians : an overview

100%

Stovba S. , Khriashchevska O. , Mazur S. , Stephenson R. , Vengrovych D. , Drachev S.

2024

tom Vol. 94, No. 2

111--137

This paper provides a brief overview of geology and petroleum geology of the Dniepr-Donets Basin (DDB) and the Ukrainian Carpathians. Selected examples reveal the significant undiscovered hydrocarbon potential of these provinces and show that it is due to the presence of a large number of promising but poorly explored hydrocarbon accumulations and traps. It is also shown that revision of the existing geological models of many known fields will significantly increase reserve estimates for these fields. This will permit an increase in the annual hydrocarbon production at each of the underexplored fields in a short period of time. The authors also show that the revision of geological models is needed for many structural traps. They failed to detect hydrocarbons, owing to ‘dry’ wells or wells that were not even tested, despite logging data, indicating the presence of hydrocarbon-bearing reservoirs. This will make it possible to bring into operation previously missed productive formations. Special attention is paid to predicting new hydrocarbon fields in underexplored areas of the Ukrainian Carpathians. Very important further research in the DDB should involve the revision of geological models of both productive and unproductive structural traps, associated with salt tectonics at depths penetrated by wells. As well, it should include exploration for new structural traps near salt stems and beneath the overhangs of salt diapirs, where they may be much more numerous than currently thought and larger in size. The implementation of the exploration and geological research discussed in this paper will ensure that Ukraine’s hydrocarbon resources will meet domestic demand for oil and gas and also become an important source of petroleum for Europe.

Methodology for the Formation of a New Economic Model for Geological Exploration in Subsoil Use

72%

Kuzina E.

tom Tom 23

891--901

In modern realities, there is no unified methodology for the economic assessment of geological exploration in subsoil use. The main research question of this study was to develop a methodology for the new economic model formation for assessing geological exploration in the subsoil use for the mineral resource base rational use. The new methodology can facilitate the assessment of subsoil users of hydrocarbon reserves and resources and government bodies when putting resources and reserves on the balance sheet. In the course of the study, modeling, observation, description, and analysis methods were used. The result of the study was a new economic model for evaluating geological exploration in subsoil use. The main conclusions can be characterized by the optimization of the main indicators of the valuation of mineral raw materials. The basic principles for calculating discounted cash flow, discount rate, payback period and internal rate of return were developed.

Risk management capabilities in the extraction of sea hydrocarbons in the Arctic region

72%

Tsvetkova A. , Fadeev A. , Cherepovitsyn A. , Ivanov I.

tom z. 145

547--557

Purpose: The article discusses the range of economic approaches to risk management in the implementation of projects for the development of offshore hydrocarbon deposits. Design/methodology/approach: The article utilizes methods and tools of systemic, situational and strategic analysis, expert assessments, as well as methods for evaluating investment projects. Findings: Within the work, the main risks at the stages of project implementation and formulated proposals for their levelling were analysed. Originality/value: To create competitive conditions for the development of offshore fields, we have identified the main risks arising from the realisation of oil and gas projects, and evaluated their impact on the economic efficiency of projects. This scientific work includes an analysis of investment costs in the development of offshore oil and gas fields in different climatic conditions. This article also discusses the issues of industrial safety and environmental protection in the development of offshore fields.