scholarly journals Circular structures of the Northern Black Sea Region a consequence of a planetary catastrophe

Author(s):  
V. Klochkov ◽  
S. Klochkov

The paper formulates a new vision of the reasons for the formation of the modern structural-geological appearance of the Northern Black Sea and the offshore area of the Azov Sea. The catastrophic events in the Northern Black Sea, during the Permian-Triassic period, about 250 million years ago, allegedly occurred. Giant asteroid exploded (or just collapsed) when it entered the dense layers of the atmosphere, and its multifarious debris formed numerous circular structures on the Northern Black Sea during the fall. It has suggested that this space catastrophe is the forerunner of the famous Permian extinction of the terrestrial biota.  Graphically and descriptively, it has been proved that approximately along the Bataisk-Krasnoperekopsk-Izmail line, according to the RSD, 3 large circular structures and up to 20 small ones are decoded. It is proved – the line corresponds to the Northern suture zone, which separates the East-European platform from the Scythian epiorogenic zone. The suture area has been active for approximately 250 million years. It has been theoretically proved that it is the invasive effect of the cosmic body that is the root cause of the fault zone, which in Cimmeria evolved into the Northern suture zone. Using modern RSD made it possible to identify large circular structures of the Northern Black Sea Region. These are Azov, Bataisk and Kalamitska. Major research interest in the segments of the Azov astrobleme in the context of the oil and gas exploration work is determined. It is proved by retrospective geological information that the identifying structures have a significant depth of occurrence and here the earth’s crust should be saturated with a significant number of supply channels (decompression zones) favorable for hydrocarbon migration.

2020 ◽  
Vol 42 (4) ◽  
pp. 33-49
Author(s):  
O.V. CHEPIZHKO ◽  
V.V. YANKO ◽  
V.M. KADURIN ◽  
I.M. NAUMKO ◽  
S.M. SHATALIN

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.


Author(s):  
Özlem Arzu Azer

After the dissolution of Soviet Union, the geo-strategical importance of Caucasia, the Central Asia and the Black Sea region increased fastly. This transition period had been difficult while central planned economies had transformed into free market economies and meet capitalism. Geo-strategic importance of the region increased for the West and Russia as well as some countries as China due to the oil and gas resources besides being transit countries of the energy pipelines. The Central Asia, Caucasia and the Black Sea Region had been so important because the region owns rich natural resources and pipelines as well as being a door to Afghanistan and the exit to the Black Sea. During Post Cold-War era, the region became a chess table for imperial countries. While USA and Russia had been playing hegemony game in this region, some other countries as China had been investing silently in important areas. The investments of China in the region are actually so invincible. In this paper, it will be analysed the investments of China in this region and its economically and political interest in Caucasia and the Central Asia.


2021 ◽  
Vol 26 (1(38)) ◽  
pp. 233-248
Author(s):  
О. V. Chepizhko ◽  
V. V. Yanko ◽  
V. M. Kadurin ◽  
І. М. Naumko ◽  
S. М. Shatalin

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.


2021 ◽  
Vol 1-2 (183-184) ◽  
pp. 60-75
Author(s):  
Nataliya Radkovets ◽  
Kostyantyn Hrygorchuk ◽  
Yuriy Koltun ◽  
Volodymyr Hnidets ◽  
Ihor Popp ◽  
...  

The objective of this work was to study the environments and processes of ancient sedimentation in the epi- and mesopelagic basins of the Carpathian-Black Sea region and to clarify the conditions of oil and gas basins formation within the study region as well as the main aspects of hydrocarbon generation. The burial history of the basins, some aspects of their fluid regime, issues of lithogenetic record, features of transformation of sedimentary basins into the rock-formation basins and the development of the latter during the Phanerozoic are considered. The spatial and temporal peculiarities of the evolution of epi-mesopelogic systems and their influence on the formation of oil- and gas-bearing strata within the Carpathian-Black Sea region have been studied. It has been established that in the sedimentary basins of the Carpathian-Black Sea continental margin of the Tethys Ocean during the long geological history the different intensity structural and morphological changes took place: changes of the subsidence rate of the basin bottom, inversion uplifts, sedimentation pauses, deformation of the sedimentary fill. This was reflected both in the peculiarities of the development of sedimentary environments and in the processes of substance differentiation with the formation of certain post-sedimentary mineral-structural parageneses. It was proved that discrete processes of differentiated compaction and defluidization of sediments cause a number of deformation phenomena, which can be reflected in the features of the morphology of the sedimentary basin bottom, influencing the nature of sediment transportation and accumulation. On the basis of the conducted investigations a number of practical results were obtained which will allow forming new approaches to criteria of hydrocarbons prospecting, in particular the lithophysical aspect which is concentrated on the reservoir properties of rocks; sedimentary reconstructions and the diversity of cyclicity of the studied sediments as a factor of the establishment of prospective areas, reconstruction of the burial history, which provides an information on the state of transformation of organic matter and hydrocarbons, and therefore the range of prospective depths for oil and gas occurrence.


2021 ◽  
Vol 16 (3) ◽  
pp. 189-198
Author(s):  
Pitarsono Yulihartanto

Pelaksanaan kegiatan operasional di area offshore pada perusahaan eksplorasi dan eksploitasi minyak dan gas bumi membutuhkan bahan bakar yang cukup banyak. Bahan bakar ini sebagian besar digunakan untuk mobilisasi berbagai jenis kapal sebagai fuel object dan operasional harian proses produksi. Terdapat beberapa kriteria umum yang menjadi dasar penjadwalan pengisian BBM, namun setiap koordinator berhak menyusun penjadwalan berdasarkan pengalaman dan subjektifitas masing-masing. Oleh karena itu jadwal yang disusun antar koordinator bisa sangat berbeda, agar memiliki standar yang seragam maka sangat diperlukan suatu metode yang terstruktur dengan kriteria standar dalam pengambilan keputusan penyusunan penjadwalan pengisian BBM. Penelitian ini bertujuan untuk mengetahui kriteria apa saja yang menjadi dasar pertimbangan dalam penjadwalan pengisian BBM dan mengembangkan suatu sistem agar keputusan penjadwalan yang diambil bisa terukur dan dipertanggungjawabkan dengan baik. Metode yang digunakan pada penelitian ini adalah rating approach Analytical Hierarchy Process (AHP), sedangkan pengelompokan kapal (klaster) yang akan diisi menggunakan metode hierarki agglomerative, complete linkage dengan euclidean distance. Hasil dari penelitian ini menunjukkan bahwa area kerja akan dibagi menjadi 3 klaster dengan jumlah SPOB sebanyak 3.  Selanjutnya kriteria yang dijadikan dasar pertimbangan dalam pengambilan keputusan penjadwalan pengisian BBM adalah  fuel remaining day fuel object, prioritas operasi, akses menuju fuel object dan jarak SPOB dengan fuel object. Berdasarkan analisis implementasinya, metode penjadwalan dengan menggunakan rating approach AHP dapat memberikan jadwal yang konsisten, terukur,bisa dipertanggungjawabkan, dan sangat mudah diimplementasikan serta dapat menghindari terjadinya perbedaan penjadwalan (subjektivitas) antar koordinator.        Abstract[Fuel Distribution Scheduling For Self Propelled Oil Barge (SPOB) Based On The Hierarchy Process Analityc Method] The implementation of operational activities in the offshore area of oil and gas exploration and exploitation companies requires quite a lot of fuel. This fuel is mostly used for the mobilization of various types of ships as a fuel object and for the daily operations of the production process. There are several general criteria that form the basis for scheduling refueling, but each coordinator has the right to arrange a schedule based on their own experience and subjectivity. Therefore, the schedule prepared between the coordinators can be very different, in order to have a uniform standard, it is necessary to have a structured method with standard criteria in making decisions on the preparation of fuel filling scheduling. This study aims to find out what criteria are the basic considerations in scheduling refueling and develop a system so that scheduling decisions taken can be measured and accounted for properly. The method used in this study is the rating approach Analytical Hierarchy Process (AHP), while the grouping of ships (clusters) to be filled using the agglomerative hierarchy method, complete linkage with euclidean distance. The results of this study indicate that the work area will be divided into 3 clusters with the number of SPOB as much as 3. Furthermore, the criteria that are used as the basis for consideration in making decisions about fuel filling scheduling are fuel remaining day fuel object, operating priority, access to fuel object and distance between SPOB and fuel. objects. Based on the implementation analysis, the scheduling method using the AHP rating approach can provide a schedule that is consistent, measurable, accountable, and very easy to implement and can avoid scheduling differences (subjectivity) between coordinators.Keywords: Analytical Hierarchy Process; Fuel Object; Scheduling; SPOB


2020 ◽  
pp. 439-453
Author(s):  
Oleg Grishin ◽  
Ralitsa Todorova ◽  
Aleksandr Tolochko

The purpose of the article is the analysis of the state of energy security in the states of the Black Sea region in terms of the geopolitics and geostrategies of different regional and international political forces. Energy security is interpreted as the provision of steady energy supply from different types and sources (diversification) and energy market stability. Energy security analysts have always emphasized the importance of energy and energy policies, but too often focused solely on the utilization of resources as an element of political power. The problem of energy and its security is often viewed as vague, misunderstood or unsolvable, with countries hostage to threats with hazardous consequences. A quality selection of analytical and statistical resources has been made to identify energy security problems, such as the growing dependence of most advanced industrial countries on oil and gas supplies, and increasing demand from developing economies for fuel. The objectives of the study are based on the notion of the regional division between the states of the Black Sea basin. The results of the study are founded on the analysis of the operations of the Black Sea Economic Cooperation Organization and the geostrategic and geopolitics interests of the major players in the Black Sea region in the context of their energy security. The article is concluded with the suggestion of a potential solution to the problem of uneven geographic distribution of energy resources such as oil and gas on the political map of the world. The political instruments for influencing energy security in the EU, NATO, USA, Russia and Turkey are analyzed in the article. Recommendations for reducing potential conflicts in the Black Sea region and minimizing the impact on the energy security of the states involved by providing a steady energy supply are given.


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