scholarly journals Development of Zone Forecast probability Models for Oil and Gas Potential in the Central Part of the Permian Uplift by Structural and Capacity Criteria

2021 ◽  
Vol 21 (1) ◽  
pp. 2-8
Author(s):  
Konstantin A. Koshkin ◽  
◽  
Ilya A. Tatarinov ◽  
Keyword(s):  
Probabilistic Models ◽  
Oil And Gas ◽  
Gas Content ◽  
Seismic Exploration ◽  
Probability Models ◽  
Deep Drilling ◽  
Structural Problems ◽  
Use Of Data ◽  
Deep Wells ◽  
Gas Potential

The task to which this article is devoted has not received due attention in recent years, since the preparation of structures for deep drilling is carried out using seismic exploration. At the same time, there is a huge array of data on structured drilling, unfortunately, it has not been fully used. Thus, the goal of the study is to use data on structured drilling to solve not only structural problems for marking surfaces, but also more complex ones related to zonal oil and gas potential of territories. The forecast of oil and gas content for marking and oil and gas horizons was carried out in three zones of oil and gas geological zoning. Using the data on these territories, studies were carried out to build probabilistic models for the zonal forecast of oil and gas content. To substantiate the joint use of data on marking surfaces and data on the tops of oil-bearing horizons, materials were studied for 447 deep wells. Probabilistic models of zonal forecast of oil and gas content of the central part of the Permian uplift were developed according to structural and capacity criteria. The complex use of data on the absolute marks of deep and structured wells made it possible to rank the territory of the central part of the Permian uplift by the degree of zonal oil and gas content. Severokamskoye (0.73), Krasnokamskoye (0.67), Baklanovskoye (0.67), Polaznenskoye (0.67), Rassvetnoye (0.64) and Mezhevskoye (0.63) fields were characterized by the maximum values of P COM. For the Kozubaevskoye field, the P COM was 0.57. The Gorskoye, Lobanovskoye, Talitskoye, Zorinskoye and Shemetinskoye fields were characterized by minimum values of P COM, varying in the range of 0.51–0.53. This scheme can be used when designing prospecting and exploration works in this area.

scholarly journals Oil and gas content of the understudied part in the northwest of the Timan-Pechora oil and gas province according to the results of basin modeling

2021 ◽  
Vol 247 ◽  
pp. 66-81
Author(s):  
Oleg Prishchepa ◽  
Ivan Borovikov ◽  
Evgenii Grokhotov
Keyword(s):  
Oil And Gas ◽  
Water Area ◽  
Seismic Facies ◽  
Gas Content ◽  
Basin Modeling ◽  
The North ◽  
Industrial Oil ◽  
Deep Wells ◽  
Gas Potential ◽  
Gas Bearing

Comprehensive interpretation of the results for regional seismic operations and reinterpretation of archived seismic data, their correlation with the drilling data of more than 30 deep wells, including Severo-Novoborsk parametric well, made it possible to clarify the structural maps and thickness maps of all seismic facies structures developed in the territory and water area in the junction of the north of Izhma-Pechora depression and Malozemelsko-Kolguevsk monocline of Timan-Pechora oil and gas province. Data obtained were used at basin modeling in TemisFlow software in order to reconstruct the conditions of submersion and transformation of organic substance in potential oil and gas bearing formations. Modeling made it possible to get an idea of ​​the time and conditions for the formation of large zones of possible hydrocarbons accumulation, to establish space-time connections with possible sources of generation, to identify the directions of migration and on the basis of comparison with periods of intense generation, both from directly located within the operation area and outside them (taking into account possible migration), to identify zones of paleoaccumulation of oil and gas. Work performed made it possible to outline promising oil and gas accumulation zones and identify target objects for further exploration within the site with an ambiguous forecast and lack of industrial oil and gas potential.

scholarly journals Role of multiple reflections in the formationof wave field in the cretaceous successions of the Middli Kura depression in Azerbaijan

2021 ◽  
Vol 43 (3) ◽  
pp. 123-134
Author(s):  
T. R. Akhmedov ◽  
T. Kh. Niyazov
Keyword(s):  
Wave Field ◽  
Upper Cretaceous ◽  
Oil And Gas ◽  
Geophysical Methods ◽  
Geological Structure ◽  
Gas Content ◽  
Seismic Exploration ◽  
Time Interval ◽  
Multiple Reflections ◽  
Seismic Sections

The article is devoted to the elucidation of the nature of the wave field recorded below the supporting-dominant seismic horizon «P» in the Middle Kura depression of Azerbaijan. A brief overview of the work carried out here is given; it is indicated that some geologists and geophysicists of our country, in our opinion, mistakenly assume that the observed wave field below the specified horizon is formed mainly by multiple reflections. Since the introduction of the common depth point method into the practice of seismic exploration, individual areas of the Middle Kura depression in Azerbaijan, including the Yevlakh-Agjabedi trough, have been repeatedly studied with varying degrees of frequency tracking. On the basis of this, a fairly large number of promising structures have been identified and mapped. But the structure of the Mesozoic, in particular the deposits of the Upper Cretaceous, still remains insufficiently studied. The study of the geological structure of the Mesozoic sediments, which are considered promising in terms of oil and gas content, is an urgent geological task; exploration work was carried out in the studied areas of the Middle Kura depression using a complex of geophysical methods at the modern technical and methodological level and new results were obtained. The constructed seismic sections show a dynamically pronounced and well-traceable seismic horizon corresponding to the Mesozoic surface and located deeper than it, relatively weak, short, discontinuous reflective boundaries that characterize the structure within the Mesozoic deposits. The studies carried out on the basis of modeling and velocity analysis made it possible to prove that the wave field in the time interval corresponding to the Mesozoic deposits owes its origin to intermittent single reflections from volcanic-carbonate deposits of the Upper Cretaceous age.

scholarly journals GEOLOGICAL STUDIES OF OIL AND GAS FIELDS IN THE EAST ARAL SEDIMENTARY BASIN

2021 ◽  
Author(s):  
С.К. Курбаниязов
Keyword(s):  
Oil And Gas ◽  
Sedimentary Basin ◽  
Raw Materials ◽  
Sediment Accumulation ◽  
Research Area ◽  
Seismic Exploration ◽  
Hydrocarbon Traps ◽  
Oil And Gas Fields ◽  
Detailed Search ◽  
Gas Potential

Объектом исследований являлись верхнепалеозойские, мезозойские и кайнозойские отложения, слагающие разрез в Восточно-Аральском осадочном бассейне, в связи с перспективами выявления месторождений нефти и газа. Обобщены и систематизированы сведения по стратиграфии, литологии, тектонике и нефтегазоносности района исследований. Изучен вещественный состав, палеогеографические, палеотектонические и геодинамические условия накопления осадков данных стратиграфических уровней, установлена их фациальная принадлежность. Составлены литолог-стратиграфические колонки скважин и проведена корреляция стратиграфических подразделений разрезов. Уточнена история геологического развития региона. Выявлены потенциальные коллектора и покрышки. Определены стратиграфические горизонты, благоприятные для формирования залежей углеводородного сырья. Обоснованы наиболее перспективные типы ловушек углеводородного сырья по стратиграфическим уровням и выявлена зональность их распространения. Дана оценка перспектив района на выявление залежей нефти и газа. Выделены информативные и качественные признаки (критерии) нефтегазоносности. Обоснованы площади и конкретные структуры для постановки детальных поисковых работ на выявление залежей нефти и газа. Рассчитана оценкапотенциальных ресурсов углеводородного сырья. Даны рекомендации на проведение первоочередных сейсморазведочных и буровых работ. The object of research was the Upper Paleozoic, Mesozoic and Cenozoic sediments composing the section in the East Aral sedimentary basin, in connection with the prospects for identifying oil and gas deposits. The data on stratigraphy, lithology, tectonics, and oil and gas potential of the research area are summarized and systematized. The material composition, paleogeographic, paleotectonic, and geodynamic conditions of sediment accumulation at these stratigraphic levels were studied, and their facies affiliation was established. The lithological and stratigraphic columns of the wells were compiled and the stratigraphic divisions of the sections were correlated. Updated the history of the geological development of the region. Potential collectors and tires have been identified. The stratigraphic horizons favorable for the formation of hydrocarbon deposits are determined. The most promising types of hydrocarbon traps are justified by stratigraphic levels and the zoning of their distribution is revealed. The assessment of the prospects of the area for the identification of oil and gas deposits is given. Informative and qualitative signs (criteria) of oil and gas potential are identified. The areas and specific structures for setting up detailed search operations to identify oil and gas deposits are justified. The estimation of potential resources of hydrocarbon raw materials is calculated. Recommendations for conducting priority seismic exploration and drilling operations are given.

scholarly journals Criteria for petroleum potential and forecast of oil and gas prospective zones in the Achimov deposits of the Gydan Peninsula

2021 ◽  
pp. 4-31
Author(s):  
N. I. Shestakova ◽  
S. V. Ershov ◽  
V. N. Bardachevskiy
Keyword(s):  
Oil And Gas ◽  
Wave Pattern ◽  
Seismic Facies ◽  
Seismic Exploration ◽  
Petroleum Potential ◽  
Lower Aptian ◽  
Sandy Material ◽  
Seismic Sections ◽  
Gas Potential ◽  
Sand Bodies

The structure and seismogeological characteristics of the Achimov strata of the Gydan Peninsula are considered. Geological and geophysical criteria for the regional forecast of oil and gas potential, taking into account the clinoform structure of the Berriasian-Lower Aptian deposits, are proposed. Based on the interpretation of drilling data and 2D seismic exploration, predictive maps of the thickness of sand bodies were constructed, depocenters of accumulation of sandy material were mapped. Seismostratigraphic studies, which are based on a comprehensive analysis of the wave pattern of time seismic sections, dynamic and seismic facies analyzes, as well as paleotectonic and paleogeomorphological reconstructions, made it possible to identify the Salmanovskaya and Yuzhno-Gydanskaya oil and gas zones in the Achimov strata of the Gydan Peninsula.

scholarly journals Assessment of the facial affiliation of local oil and gas objects based on geophysical data

2021 ◽  
Vol 21 (4) ◽  
pp. 241-247
Author(s):  
Boris A. Golovin ◽  
◽  
Konstantin B. Golovin ◽  
Marina V. Kalinnikova ◽  
Sergey A. Rudnev ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Facies Analysis ◽  
Geophysical Methods ◽  
Well Logging ◽  
Geophysical Data ◽  
Gas Content ◽  
Seismic Exploration ◽  
Core Material ◽  
Genetic Characteristics ◽  
Reservoir Potential

In the established practice of geological exploration for oil and gas conclusions about the facies belonging of the rocks of oil and gas basins and individual exploration areas were made mainly on the basis of the study of core material. Recently for this purpose the results of seismic exploration and well logging have been used. Geophysical methods despite their obvious progress are indirect and intermittent core sampling and incomplete coring make facies analysis difficult. Тhe study of cuttings during the well logging process makes it possible to fill this gap through direct continuous observations along the well section. The use of the whole complex of geophysical methods allows one to mutually compensate for the limitations and disadvantages of each of them and more fully and reliably assess the genetic characteristics and reservoir potential of productive deposits. Sequential accumulation, comparison and analysis of heterogeneous geophysical data make it possible to continuously refine apriori facies models and forecast oil and gas content which ultimately allows to optimize the directions and volumes of drilling.

scholarly journals GEOLOGY AND PETROLEUM POTENTIAL OF NOVY PORT FIELD ON THE RESULTS OF THE INTERPRETATION OF 2D SEISMIC AND DEEP DRILLING

2019 ◽  
Vol 2 (1) ◽  
pp. 206-216
Author(s):  
Ekaterina Surikova
Keyword(s):  
Oil And Gas ◽  
Gas Content ◽  
Upward Movement ◽  
Deep Drilling ◽  
Petroleum Potential ◽  
Seismic Sequences ◽  
Sedimentary Sequences ◽  
Tectonic Processes ◽  
Isopach Maps ◽  
Intensive Growth

The objective of this study was to build a set of structural and isopach maps of seismic sequences, seismic-geological sections, paleo-sections and correlation schemes; structural-tectonic and paleotectonic analysis of Novy Port shaft; to study the influence of tectonic processes and lithological factors on the oil and gas content of Jurassic and Cretaceous sedimentary sequences. It was concluded that the formation of the structural trap of Novy Port field began in Berrias-Aptian, the most intensive growth of the structure occurs in the post-Turonian time due to the upward movement of the basement block.

scholarly journals FEATURES OF THE FORMATION OF THE LOWER-MIDDLE CAMBRIAN DEPOSITS IN CONNECTION WITH THE ASSESSMENT OF OIL AND GAS POTENTIAL IN THE TERRITORY OF THE NORTH-TUNGUSKA OGA

2021 ◽  
Vol 2 (1) ◽  
pp. 130-136
Author(s):  
Sergey A. Moiseev ◽  
Andrei M. Fomin ◽  
Igor A. Gubin
Keyword(s):  
Oil And Gas ◽  
Gas Content ◽  
Middle Cambrian ◽  
The North ◽  
Key Features ◽  
Gas Potential ◽  
Sedimentation Conditions

The key features of the structure, lithology and sedimentation conditions of the Lower and Middle Cambrian of the North Tunguska OGO are considered. A seismogeological model of the section in the zone of its facies replacement was compiled. A description of two paleogeographic schemes of the Toyon and May centuries is given. The high prospects for the oil and gas content of this territory have been substantiated.

scholarly journals Oil and Gas Potential in the Territory of the South-Eastern Part of the Bukhara-Khiva Region

2021 ◽  
Vol 11 (4) ◽  
pp. 4699-4708
Author(s):  
Odiljon G. Khayitov ◽  
Gulnarakhon K. Salizhanova ◽  
Marhamat A. Mutalova ◽  
Sevara I. Aminzhanova ◽  
Malika Y. Mishareva
Keyword(s):  
Oil And Gas ◽  
High Capacity ◽  
Gas Condensate ◽  
Gas Content ◽  
Southeastern Part ◽  
Promising Target ◽  
Gas Fields ◽  
Gas Potential ◽  
Filtration Properties ◽  
Hydrocarbon Deposits

The article analyzes the oil and gas content of the southeastern part of the Bukhara-Khiva region. It is shown that this territory is the main promising target for prospecting for new oil, gas and hydrocarbon deposits. It was revealed that the main productive deposits are carbonate deposits. It has been established that the most widespread and large ones are massive deposits in traps of the structural-lithological type, confined to the Callovian-Oxfordian reef deposits and distinguished by high capacity and filtration properties. It is argued that the lower part of the reservoirs is flooded in all fields of this type. The characteristic is given of 44 open oil, oil and gas condensate, gas condensate and gas fields of the specified region. Pre-Jurassic deposits contain hydrocarbons. The features of the structural plans of carbonate and salt-anhydrite formations and their influence on the location of oil and gas deposits within the southeastern part of the Bukhara-Khiva region for increasing hydrocarbon reserves have been determined. The fields under development in the stage of deep drilling have been clarified. Recommendations for deepening geological exploration are offered.

scholarly journals GEOLOGICAL STRUCTURE AND OIL AND GAS POTENTIAL OF THE SOUTHERN EDGE OF THE PRE-URAL FORE DEEP

Neft i gaz ◽  
2020 ◽  
Vol 3-4 (117-1118) ◽  
pp. 69-83
Author(s):  
KH.B. ABILKHASIMOV, ◽  
Keyword(s):  
Oil And Gas ◽  
Geological Structure ◽  
Seismic Exploration ◽  
Well Log ◽  
The Core ◽  
Search Facility ◽  
Gas Potential

This article contains the lithofacies characteristic of the ShR-1 well log according to the core analyses results and the results of seismic exploration operations on Shirak site, located in the closure zone of the southern edge of Pre-Ural fore deep. The example of Shirak site demonstrates oil and gas potential of the Kazakhstan part of fore deep and describes the prospective resources. A new structure in Paleozoic sedimentary complex, which could be the first search facility in this area was discovered.

scholarly journals PROMISING SITES FOR OIL AND GAS NADYM DEPRESSIONS

2016 ◽  
pp. 33-37
Author(s):  
R. I. Safin
Keyword(s):  
Oil And Gas ◽  
Well Logging ◽  
Geological Structure ◽  
Gas Content ◽  
Seismic Exploration ◽  
Paleozoic Basement ◽  
Well Tests ◽  
Gas Bearing

The paper describes the geological structure and oil and gas content in Nadym depression, which is almost entirely located over the oil-and-gas geological zoning in the oil and gas bearing area Yarudey of Frolovskaya petroleum bearing region. The generalization of the results of drilling, regional seismic exploration, core studies, well logging and well tests lead to identification of potential productive formations in the Jurassic-Cretaceous platform complex and in the Paleozoic basement. Some recommendations for further direction of exploration are proposed.

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