scholarly journals Petroleum Potential in the Center of Song Hong Basin of the Northern Continental Shelf Vietnam

2021 ◽  
Vol 132 (1) ◽  
pp. 25-29
Author(s):  
N. T. Thinh ◽  

The sedimentary basin Song Hong is one of the largest Cenozoic oil and gas bearing sedimentary basins, in which the center of the basin covers a large part. It elongates from block 105 to block 115. This article presents the geological structure, history of geological development, oil and gas potential and characteristics of reservoirs f the central basin, where the thickness of the basin deposits reaches more than 16 000 m.

Author(s):  
A. Khuduzade ◽  
Sh. Akhundov ◽  
S. Shabanova ◽  
T. Imamalili ◽  
O. Ismaylov

The article continues the series of publications devoted to the forecast of oil and gas potential in the Middle Kura Depression. Systematization and analysis of published materials show that the effectiveness of prospecting and exploration for oil and gas depends on the fairness and accuracy of scientific ideas about the origin and patterns of hydrocarbon localization. The established heterogeneity of the structure of sedimentary basins and the uneven distribution of oil and gas deposits in them allows us to make a predictive assessment of territories based on historical-geological methods and a synthes analysis of criteria for assessing the prospects of oil and gas. These methods are based on fundamental research in geology, the most important of which are structural-tectonic analysis and the genesis of oil and gas-bearing structures, the study of geological and geochemical factors in the simulation model “Uniform continuous lowering”, the study of the staged conversion of organic matter in the catagenetic process and show the oil and gas windows, prediction of collector and overlying seal zones, study of organic substances dissolved in water and other hydrogeological factors contributing to the formation and prevent of oil and gas deposits. Analysis of the geological history of the first stage of research,the assessment of petroleum potential of the region. Based on the results of seismic surveys, we carried out paleotectonic reconstructions for the northwestern zone of the Ganja oil and gas-bearing region, which illustrate the maps of total thickness in the form of isopachic triangle, paleotectonic profiles and graphic of subsidence size. Modeling of structural surfaces made it possible to establish the historical development of not only local structures, but also to notice new features in the formation of chronostratigraphic surfaces, and to judge the tectonic regime of the sedimentation basin, to justify the mechanism of formation in the sedimentary cover of the Middle Kura depression, both of plicative dislocation and faulting as well as zones of oil and gas accumulation associated with them. The study can be considered as a positive argument when choosing the location of the prospecting well.


Georesursy ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 4-12
Author(s):  
Antonina V. Stoupakova ◽  
Alexander A. Pashali ◽  
Victoria V. Volyanskaya ◽  
Anna A. Suslova ◽  
Anna P. Zavyalova

“Paleobasin” is an area of long-term and steady subsidence of the Earth’s crust at a certain stage of geological development in the past, during which a body of sedimentary rocks of a mega-regional scale is formed, subsequently subjected to the influence of various kinds of geological processes leading to a reduction in its size, as well as changes in geometry and structure. Paleobasin is not a new concept. However, for petroleum, historical analysis was used only for those sedimentary strata that were not metamorphosed or collapsed into folds. As a result, the side zones of the basins and deep horizons were excluded from the basin modeling. The proposed approach to the analysis of paleobasins, regardless of the degree of their subsequent transformation, makes it possible to assess the petroleum potential of past eras, both primary and residual, especially in those zones and horizons that were previously derived from a general consideration of the prospects for finding oil and gas. The article shows the need for an integrated historical approach to the analysis of the oil and gas potential of the territory, both at the basin level and at the local level, including sedimentary strata and strata, which are often referred to as the “acoustic foundation”. Unfortunately, very often when modeling a promising object and assessing its resources or reserves, some of these attributes are taken for the type of work already done and do not adapt to a single model of oil and gas deposits, which reduces the reliability of the final result.


2019 ◽  
Vol 489 (3) ◽  
pp. 272-276
Author(s):  
V. A. Kontorovich ◽  
A. E. Kontorovich

On the Kara Sea shelf, there are two sedimentary basins separated by the North-Siberian sill. Tectonically the southern part of the Kara Sea covers the South Kara regional depression, which is the northern end of the West Siberian geosyncline. This part of the water area is identified as part of the South Kara oil and gas region, within which the Aptian-Albian-Senomanian sedimentary complex is of greatest interest in terms of gas content, in terms of liquid hydrocarbons - Neocomian and Jurassic deposits. The northern part of the Kara Sea is an independent North Kara province, for the most part of which the prospects of petroleum potential are associated with Paleozoic sedimentary complexes. Oil and gas perspective objects of this basin may be associated with anticlinal, non-structural traps and reef structures.


2021 ◽  
Vol 2 (1) ◽  
pp. 282-290
Author(s):  
Andrei M. Fomin ◽  
Igor A. Gubin ◽  
Sergey A. Moiseev

The article discusses the history of the geological study of the Aldan-Maya oil and gas region, during which numerous signs of oil and gas potential were identified. The description of oil and gas bearing complexes of sedimentary strata is given. It is shown that the prospects for the discovery of new oil and gas fields in the Aldan-Maya oil and gas bearing area were assessed quite high.


2017 ◽  
pp. 58-66 ◽  
Author(s):  
A. B. Tugareva ◽  
G. A. Chernova ◽  
N. P. Yakovleva ◽  
M. L. Moroz

In the presented work the features of the geological structure and oil and gas potential of the pre-Jurassic basement rocks are discussed. In the sediments of the oil and gas bearing horizon of zone of contact five types of reservoir rocks are distinguished. The greatest prospects for oil and gas potential are associated with the carbonate depositions of the Middle Paleozoic and effusive of the medium-acidic composition of the Permian-Triassic and Triassic age. From these deposits in the territory of the district the maximum oil inflows were received. 15 promising zones of oil and gas accumulation in the deposits of the oil and gas bearing horizon of zone of contact were distinguished, three of which are poorly studied by drilling and one zone (Predeniseyskaya) is in the Paleozoic oil and gas complex.


Author(s):  
Alexandr S. Salnikov ◽  
◽  
Valery S. Staroseltsev ◽  

In tectonic zoning of large regions, the latter are traditionally made into platform and folded territories, which are estimated, respectively, as potentially oil and gas bearing and unpromising for oil and gas. The expansion of the Siberian platform in the southeast due to the territory of a more complex geological structure requires an analysis of the prerequisites for its possible oil and gas potential both from available materials and from the results of additional regional studies.


2019 ◽  
Vol 3 (180) ◽  
pp. 60-75
Author(s):  
Oleksandr Prykhodko ◽  
Ihor Hrytsyk ◽  
Ihor Kurovets ◽  
Svitlana Melnychuk

For the predictive appraisal of the perspective exploratory territories as well as prediction of separate producing horizons of prospecting and exploration areas for oil and gas it is necessary to establish the regularities of distribution of already explored deposits of hydrocarbons with structural-tectonic construction, lithological-stratigraphic features, hydrogeological and geothermobaric conditions of oil- and gas-bearing region taken into account. Interconnection between geothermobaric parameters and the phase state of hydrocarbons in the vertical section should be an important factor for the solution of the posed task. Within the limits of the Eastern oil- and gas-bearing area of Ukraine, the spatial zoning is established in the location of gas, oil and gas-condensate deposits. As a whole, the distribution of temperatures and pressures at different depths, average geothermal gradients, gradients of the lithological-stratigraphical horizons of the same name (sustained both as to the area and thickness) are closely connected with the deep geological structure of the studied region (area) and confirm the existing notions of the role of tectonic, lithological-stratigraphic and hydrogeological factors in the formation of the thermal regime of sedimentary basins. Vertical zoning of the distribution of hydrocarbon deposits of oil- and gas-bearing horizons was developed according to geothermobaric parameters of the north-western part of the Dnieper-Donets Depression and 8 areas from 15 ones of the Eastern oil- and gas-bearing region, namely: Monastyryshche-Sofiivka and Talalaivka-Rybalske oil- and gas-bearing areas, Glynsk-Solokha gas- and oil-bearing area, Ryabukhyne-Northern Golubivka and Mashivka-Shebelynka gas-bearing areas, Rudenky-Proletarske oil- and gas-bearing region, Krasna Rika gas-bearing area and also oil- and gas-bearing area of the Northern edge. Revealed regularities of the distribution of formation temperatures, pressures, geothermal and thermobaric coefficients with peculiarities of the tectonic structure of the Dnieper-Donets graben taken into account will make it possible to solve theoretical problems connected with hydrocarbon migration, the formation and preservation of deposits in more well-founded way that will make it possible to conduct prospecting for new fields at great depths within the studied territory more effectively.


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