For the first time the importance of mineralogical and lithological-petrographical ranks in the line of geological information ranks is substantiated for implementation of long-term forecasts, standard and non-standard approaches to research of physical and geochemical parameters as a basis of creation of complex system of forecast criteria and prospecting indicators of hydrocarbons within the sedimentary cover of Black sea based on the theory of global fluid-flows derivation. These criteria have different sensitivity to the object (hydrocarbon deposits) and are therefore ranked. The ranking determined the following parameters: 1) seismic data within the object, obtained by the method of deep seismic sounding, RWM SDP; 2) parameters of tectono-geodynamic structures; 3) the main characteristics of sedimentary cover and bedrock; 4) geochemical characteristics; 5) parameters of mineral complexes and fluid inclusions in mineral neoformations; 6) the value of the distribution of meiobenthos. Based on modern views of oil and gas geology, structural-tectonic and lithological-facies criteria are among the main ones. The study of the mineralogical component of sediments is made with using mineralogical, thermobarogeochemical and X-ray spectral methods. Fixation of anomalies of fluid flow at the bottom of the Black Sea as to the distribution of abiotic parameters in order to assess the prospects of oil and gas is determined by structural and tectonic features and high permeability of fluid flow; parameters of mineral complexes (minerals, facies) and genetic connections; heterogeneity of geochemical characteristics of bottom sediments; the presence of hydrocarbon inclusions in authigenic minerals of bottom sediments.

Роботу орієнтовано на створення керівної предметно-орієнтованої структурної моделі пошукових робіт на родовища вуглеводнів на шельфі. Така модель включає два взаємопов'язані між собою інформаційні блоки: 1. Структура знань у предметній області інформації; 2. Структура досліджень та отримання інформації. Підготовано матеріал для застосування моделі на Прадніпровської структурі зовнішнього шельфу Чорного моря.Ключові слова: флюїдопотоки, поклади вуглеводнів, ранжування, геоінформаційна система ВСТУП Актуальним і важливим є впровадження довгочасних кількісних прогнозів, стандартних і нестандартних підходів дослідження фізичних та хімічних параметрів середовища з метою створення комплексної системи прогнозних прецизійних критеріїв і пошукових ознак покладів (родовищ) вуглеводнів в осадовому чохлі Чорного моря. Ці критерії мають різну чутливість до об'єкта ские, минералогические и микропалеонтологические работы, ранжированные по степени чувствительности к углеводородной залежи и пробурена глубокая (2250 м) параметрическая скважина.

Regions of Ukraine, including the Ukrainian Black Sea, have a number of fields with sufficiently large reserves of hydrocarbons that are available for development in a relatively short time and acceptable in terms of the likely costs and cost-effectiveness. The aim of the study is to establish the characteristics of raw hydrocarbon deposits forming the southwest part of the Odessa-region of Ukraine and determine the prospects of their acquisition. Objectives: 1. Analysis of geological and structural position of the Northern Black Sea region; 2. Evaluation of these data on proven reserves of oil and gas in the Odessa-region, Ukraine. Currently known stratigraphic range of oil and gas in the region include complex Neogene rocks (Sarmatian) and Paleozoic (Upper and Middle Devonian). The most complete information about the geological context of the sedimentary strata in the Odesa-region obtained from the drilling of deep wells located in different structural-tectonic zones. Among the geological prerequisites for determining attribution of certain areas of the Odessa-region to highly promising in regard to search for medium and large deposits of oil and gas, are considered the presence of a strong (up to 8 km) thickness of sedimentary formations favorable combination of geological section of rocks of different lithology and producing, accumulating and screening systems and installation of industrial oil-bearing Devonian sediments. The south-western part of the Odessa-region stands out as highly promising in respect of oil and gas within Prydobrudzkoyi area (Kisslinska and Izmail structure (4.5 billion m3 of natural gas)). Preferential development of hydrocarbon deposits in selected areas in the southwestern part of the Odessa-region due to the relatively low cost and short time (2 years) compared with other areas to ensure their own energy industrial-economic complex of Ukraine.

Problem Statement and Purpose. The diverse and extensive geological materials and geophysical data used in forecasting and prospecting operations for oil and gas exploration within the Black Sea’s northwestern shelf are usually interpreted in a complex manner. This complexity, however, is often spontaneous and fragmentary, with no new theoretical concepts taken into account. For example, the theory of global fluidogenesis represents an alternative hypothesis to the organogenic-sedimentary formation of hydrocarbon deposits but is commonly not considered. The authors of this article believe that the complexity should be replaced by a method of directed rank interpretation of geological information, in which ranking distinguishes the maximum information on one of the sections of geological work with regard to its completeness and consistency. The purpose of this study is to apply expert analysis and rank correlation of obtained information to geological and forecasting research on hydrocarbons. To achieve this goal, two basic principles, rank and direction, are considered. The data include seismic, tectonic-geodynamic, lithological, geochemical, mineralogical, and meiobenthic characteristics of the sea bottom scaled according to their sensitivity to the independent variable, i. e., hydrocarbons. Study area, material, and methods. The Pradneprovskaya area has been chosen for analysis. It is a promising location for oil and gas exploration in the shallow part of the inner northwestern shelf of the Black Sea. Geologically, this is the area of junction for the South Ukrainian monocline with the system of blocks included in the Predobrudzha-Crimean riftogenic trough. The area was studied by geophysical, geochemical (hydrocarbon gases, liquid hydrocarbons), mineralogical (X‑ray diffraction of clay minerals, thermobarogeochemistry of inclusions in minerals), and paleontological (foraminifera, nematodes, ostracods) methods, along with the drilling of a deep (2352 m) parametric well (Pradneprovskaya‑2). Results. It is shown that expert analysis of the diverse information within the framework of selected tasks, which are poorly formalized into a single system, provides the basis for an effective method of comparing information databases formed on different principles. This analysis is founded on the principle of directed (vector) ranking, where each rank narrows the search area and becomes more sensitive to the hydrocarbon deposit. The article gives an example of how this method can be used for a specific objective in its entirety, namely: (a) selection of information ranks (parameters), (b) selection of experts, (c) calculation of the rank matrix, (d) determination of hierarchical dependencies of ranks, (e) verification of the matrix, and (e) calculation of the concordance coefficient. The obtained results indicate that the proposed method of expert analysis with rank correlation under modern conditions using diverse geological materials that are not formalized into a single database, provides high reliability in the comprehensive interpretation of data. The method will help optimize geological and forecasting research on hydrocarbons within the Black Sea shelf.