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 THE ROLE OF MOLECULAR PHYSICS IN THE FORMATION AND PLACEMENT OF HYDROCARBON DEPOSITS IN OROGENIC FORMATIONS

2018 ◽  
pp. 23-29
Author(s):  
Yu. Ya. Bolshakov ◽  
E. Yu. Neyolova
Keyword(s):  
Porous Media ◽  
Oil And Gas ◽  
Capillary Forces ◽  
Gas Content ◽  
Hydrocarbon Accumulation ◽  
Molecular Physics ◽  
Water Saturated ◽  
Gas Fields ◽  
Hydrocarbon Deposits

The article considers the large gas fields geology aspects of which are totally in conflict with the principles of anticline theory of hydrocarbon accumulation. These fields are situated in orogenic formations and associated with large synclinal structures. Any seals and lateral screens are absent. Gas saturated reservoirs are surrounded by relatively large-porous water-saturated sandstones and retained in pools due to the capillary forces. The nature of these fields is determined by the molecular physics laws, which effect in oil-wet porous media. These areas are abundant within the geosynclinal systems where synclinal structures can be considered as perspective for oil-and-gas content.

scholarly journals Interpretation of electrical logging data from the Hettangian-Aalenian terrigenous reservoirs in the Southeast of Western Siberia

Georesursy ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. 73-79
Author(s):  
Olga Loktionova ◽  
Lyudmila Kalinina ◽  
Igor Mikhaylov
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Data Interpretation ◽  
Upper Jurassic ◽  
Lower Jurassic ◽  
Oil And Gas Fields ◽  
Water Saturated ◽  
Gas Fields ◽  
Gas Potential ◽  
Hydrocarbon Deposits

In the southeast of Western Siberia, the most studied are the Upper Jurassic deposits, most of the oil and gas fields being confined to them. However, the probability of discovering new hydrocarbon deposits in the Upper Jurassic horizons is extremely small. Therefore, of great importance is finding new hydrocarbon deposits in less studied deep-lying complexes. The article considers the development of a criterion for determining the saturation type of the terrigenous reservoirs in the Hettangian-Aalenian deposits in the southeast of the West Siberian sedimentary basin. We use the example of the Ust-Tym megadepression, a large depression located in the central part of the Tomsk region. The Lower and Middle Jurassic sections are represented by the Urman and Togur formations, Salat formation (Peshkov formation is its isochronous analogue) and Tyumen formation, and characterized by the alternation of predominantly sandy (potential reservoirs) and argillaceous-carbonaceous (seals) sequences. In the studied interval, tests were carried out in just a few wells, for which reason the identification of deposits and promising objects is complicated. Determining the type of reservoir saturation will significantly improve the assessment of oil and gas potential. As a result of interpreting lateral logging sounding data, the geoelectric parameters of the invasion zone and undisturbed formation were reconstructed for the Lower Jurassic and Aalenian deposits. Based on the well logging data interpretation by means of numerical inversion, we obtained the criterion for the saturation type of the reservoirs (Ju11-17) in the Hettangian-Aalenian complex. The boundary resistivity values for the oil-saturated reservoirs vary from 8 to 20 ohm∙m, while for the water-saturated ones they do not exceed 5 ohm∙m.

scholarly journals IMPACT OF TECTONIC FACTORS AND TIRE ROCKS ON THE OIL AND GAS POTENTIAL OF THE SOUTHERN PART OF THE ABSHERON ARCHIPELAGO

2021 ◽  
Author(s):  
Мухтарова Хураман Зиядхан гызы ◽  
Насибова Гюльтар Джумшуд гызы ◽  
Рустам Джафарзаде Фазиль оглы
Keyword(s):  
Oil And Gas ◽  
Gas Content ◽  
Lower Section ◽  
The South ◽  
South Caspian Basin ◽  
Gas Formation ◽  
Western Side ◽  
Gas Potential ◽  
Hydrocarbon Deposits ◽  
Comprehensive Study

To assess the prospects for prospecting for regional oil and gas accumulations, it is importance to study the main factors that control the development of the processes of oil and gas formation and accumulation in the earth's crust and the criteria for predicting the oil and gas content of the subsoil arising from this study. A comprehensive study of geophysical, geological, tectonic, lithofacies, petrophysical and a number of other factors of oil and gas content and their changes in space over time make it possible to develop the foundations of the main criteria for predicting the distribution of oil and gas territories and the development of hydrocarbon deposits. In order to assess the prospects for prospecting for oil and gas accumulations in the lower section of the PT of the western side of the South Caspian Basin (SCV), based on the available material and taking into account a large number of published works, we considered tectonic criteria and preservation conditions for the formed hydrocarbon accumulations in the South Absheron archipelago., in the example of the Gum-Deniz and Bahar deposits.

scholarly journals Kerogen amount calculation required for the formation of hydrocarbon deposits in the Western oil and gas region of Ukraine

2020 ◽  
Vol 1 (182) ◽  
pp. 52-61
Author(s):  
Yurii KHOKHA ◽  
Oleksandr LYUBCHAK ◽  
Myroslava YAKOVENKO ◽  
Dmytro BRYK
Keyword(s):  
Oil And Gas ◽  
Source Material ◽  
Gas Condensate ◽  
Type Ii ◽  
Generative Capacity ◽  
Gas Generation ◽  
Entropy Maximization ◽  
Kerogen Pyrolysis ◽  
Gas Fields ◽  
Hydrocarbon Deposits

This paper considers the issue of determining the maximum hydrocarbons amount that can be generated by kerogen using thermodynamic methods. It is shown that the chemical composition of natural gas or gas condensate contains information about the generative capacity of kerogen from which it was formed. Based on experiments of type II and I kerogen pyrolysis and thermodynamic calculations by entropy maximization method, we propose a new method for determining the amount of kerogen from which gas was formed, which contains 1 dm3 of methane at a given ratio of butane isomers. The obtained data are interpreted as an indicator of kerogen maturity in the context of the depth of its destruction. This method is applied to theWestern oil and gas region of Ukraine hydrocarbon deposits. The analysis of kerogen transformations in the region sedimentary strata, using criteria of the GASTAR diagram, is carried out. We assessed the trends of kerogen conversion in the region in the areas of “maturity” and “biodegradation” in the ratio of ethane/propane (C2/C3) to ethane/isobutane (C2/i-C4). It is shown that the majority of deposits in the Western oil and gas region developed in the direction of maturation and only a small group of gas deposits – biodegradation. To establish the gases genesis in the region, we built a graph of the two geochemical indicators dependence – the methane/ethane ratio (C1/C2) and ethane/propane ratio (C2/C3). It is shown that some of the gas fields is formed due to the conversion of organic material of oil deposits. At the same time, gas condensate fields in the region, with few exceptions, are formed due to the primary destruction of kerogen. Based on the results of the calculations, maps of the methane (generated by type II kerogen) amount distribution were constructed. It is established that kerogen, which was the source material for hydrocarbon deposits of Boryslav-Pokuts oil and gas region, has practically exhausted its gas generation potential. Instead, kerogen from gas and gas condensate fields in the Bilche-Volytska oil and gas district still retains the potential to generate hydrocarbons.

scholarly journals Topics about Chayanda oil and gas condensate field: tectonic nature of this accumulations; oil and gas content of the Vendian-Lower Cambrian carbonate section; prospects of the "sub-basement" unit

2020 ◽  
Vol 15 (4) ◽  
Author(s):  
M.R. Marsanova ◽  
◽  
A.G. Berzin ◽  
Keyword(s):  
Lower Cambrian ◽  
Oil And Gas ◽  
Fluid Dynamic ◽  
Gas Condensate ◽  
Gas Content ◽  
Fault System ◽  
Main Element ◽  
Resource Base ◽  
Upper Proterozoic ◽  
Gas Potential

The tectonic nature of the fields of the Nepa-Botuoba anteclise is considered within the framework of the fluid-dynamic concept. The main element of this concept is basin-forming activated fault systems with the properties of cyclic manifestation, direction of generation, time and period of activation. It has been established that deposits in the Vendian terrigenous section at the Chayandа oil and gas condensate field were formed under the influence of an activated fault system of the early northeastern generation.The hydrocarbons accumulations in carbonate strata of the Lower Cambrian in the neighboring Talakan oil and gas condensate field under the influence of the system of late northwestern generation are discordant to each other. According to a number of the considered criteria related to the tectonic nature, the prospects of oil and gas potential of the Vendian-Lower Cambrian carbonate strata on the territory of the Chayandа field are assessed as low. For terrigenous rocks of the Vendian basal strata, the features of the accumulation in the Khamakin productive level in comparison with the Botuobа are established. Assumptions about the underlying source of subvertical fluid flows of hydrocarbons are argued. It is proposed to study the "basement" unit of the Upper Proterozoic in order to increase the hydrocarbons resource base of the field.

The geosolitonic concept of high output hydrocarbon deposits formation

2021 ◽  
pp. 13-22
Author(s):  
R. M. Bembel ◽  
S. R. Bembel ◽  
M. I. Zaboeva ◽  
E. E. Levitina
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Chemical Elements ◽  
Seismic Exploration ◽  
Oil And Gas Fields ◽  
Recoverable Reserves ◽  
Production Wells ◽  
Cumulative Production ◽  
Gas Fields ◽  
Hydrocarbon Deposits

Based on the well-known results of studies of the ether-geosoliton concept of the growing Earth, the article presents the conclusions that made it possible to propose a model of thermonuclear synthesis of chemical elements that form renewable reserves of developed oil and gas fields. It was revealed that local zones of abnormally high production rates of production wells and, accordingly, large cumulative production at developed fields in Western Siberia are due to the restoration of recoverable reserves due to geosoliton degassing. Therefore, when interpreting the results of geological and geophysical studies, it is necessary to pay attention to the identified geosoliton degassing channels, since in the works of R. M. Bembel and others found that they contributed to the formation of a number of hydrocarbon deposits in Western Siberia. When interpreting the results of geological-geophysical and physicochemical studies of the fields being developed, it is recommended to study the data of the ring high-resolution seismic exploration technology in order to identify unique areas of renewable reserves, which can significantly increase the component yield of hydrocarbon deposits.

scholarly journals Improve The Efficiency Of The Study Of Complex Reservoirs And Hydrocarbon Deposits - East Baghdad Field

2020 ◽  
Author(s):  
Sudad H Al-Obaidi
Keyword(s):  
Oil And Gas ◽  
Water Saturation ◽  
Well Logging ◽  
Well Testing ◽  
Petrophysical Parameters ◽  
Oil And Gas Fields ◽  
Hydrocarbon Fields ◽  
Gas Fields ◽  
Hydrocarbon Deposits

Practical value of this work consists in increasing the efficiency of exploration for oil and gas fields in Eastern Baghdad by optimizing and reducing the complex of well logging, coring, sampling and well testing of the formation beds and computerizing the data of interpretation to ensure the required accuracy and reliability of the determination of petrophysical parameters that will clarify and increase proven reserves of hydrocarbon fields in Eastern Baghdad. In order to calculate the most accurate water saturation values for each interval of Zubair formation, a specific modified form of Archie equation corresponding to this formation was developed.

scholarly journals THE MODEL OF FOLDING PROCESS AND BREACHES FORMATION IN BORISLAV-POKUTTIA ZONE OF THE PRECARPATHIAN DEFLECTION

2019 ◽  
pp. 7-16
Author(s):  
H.O. Zhuchenko ◽  
I.R. Mykhailiv ◽  
N.V. Hoptariova ◽  
H.D. Horvanko
Keyword(s):  
Oil And Gas ◽  
Traditional Approach ◽  
Geological Structure ◽  
Reliable Prediction ◽  
Local Structures ◽  
Tectonic Disturbances ◽  
Gas Potential ◽  
Potential Traps ◽  
Quantitative Indicators ◽  
Hydrocarbon Deposits

The topicality of the research is determined by the detailed study of the peculiarities of the geological structure of Boryslav-Pokuttia zone of the Precarpathian deflection, in particular of local structural forms as probable traps for oil and gas, for reliable prediction of the oil and gas potential of the subsoil. Boryslav-Pokuttia zone of the Precarpathian deflection refers to one of the oldest oil and gas producing regions in Ukraine. Its hydrocarbon potential is far from being exhausted. The complex block structure of Boryslav-Pokuttia zone requires the development of specific methods for conducting oil and gas prospecting. In this regard, determining the distribution nature of the local structures and specifying the peculiarities of their morphological forms in the area under investigation are of great importance. The issue of tracing tectonic disturbances and determining their screening ability which determines the possible existence of hydrocarbon deposits remains to be an urgent matter. Solving these issues will significantly improve the geological efficiency of prospecting and exploration in the areas of Boryslav-Pokuttia zone. At the modern stage of the Earth sciences development computer processing of geological data is widely used.Therefore, along with the traditional approach to describing structures as potential traps for oil and gas, it isnecessary to analyze their quantitative (numerical) parameters. It gives a possibility to confirm the stablished regularities more reasonably. Handling large array of quantitative indicators of local structures and the dependencies established among them makes it possible to simulate the processes that formed them and to determine the regularities of their distribution. The most important scientific and practical results include: the quantitative indicators ranking of the local structures of Boryslav-Pokuttia zone (the ranking contains four groups of structures classified according to their morphological texture); the investigated conditions for the formation of morphological varieties of local structures and the character of the distribution of tectonic deformations in them. The results of geological and mathematical simulation according to a complex of quantitative indicators help to state that local structures with certain morphological features, which are revealed to various extent in their deformations, are formed by tectonic movements of different magnitude and direction and are described by the numerical parameters peculiar only to them. Investigating the distribution of tectonic stresses and deformations, which can be estimated in quantitative indicators, will contribute to a more reliable prediction of the oil and gas potential of the subsoil. In its turn, it will improve significantly the geological performance of oil and gas prospecting in the areas of BoryslavPokuttia zone of the Precarpathian deflection.

scholarly journals FEATURES OF THE STRUCTURE AND OIL AND GAS POTENTIAL OF LOWER CRETACEOUS AND UPPER JURASSIC SEDIMENTS IN WESTERN AREAS OF WESTERN SIBERIA

2017 ◽  
pp. 25-34
Author(s):  
G. .. Mukher ◽  
S. F. Kulagina ◽  
A. V. Goryachev ◽  
E. A. Pakhomova ◽  
A. A. Gladyshev
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Integrated Approach ◽  
Upper Jurassic ◽  
Geological Structure ◽  
Silty Sand ◽  
Reservoir Rocks ◽  
Bazhenov Horizon ◽  
Gas Potential ◽  
Hydrocarbon Deposits

The features of the geological structure and oil and gas potential of the Bazhenov-Abalak oil and gas complex are discussed. Based on new geological and seismic data, using an integrated approach, the zones of distribution and the boundaries of thinning out of silty sand reservoir rocks of Vogulkinskaya strata were mapped, four traps and two zones (Ourinskaya, Eastern Tolumskaya), which are perspective for hydrocarbon deposits search, were distinguished. In Bazhenov horizon, the zones of development of anomalous sections and bituminous sediments were mapped, laying above Bazhenov formation, which are perspective for hydrocarbon deposits search. Recommendations for further exploration are given.

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