scholarly journals ПЕРСПЕКТИВЫ НЕФТЕГАЗОНОСНОСТИ СЕВЕРО- АБШЕРОНСКОГО АРХИПЕЛАГА ЮЖНО- КАСПИЙСКОЙ ВПАДИНЫ В СВЯЗИ С ТЕКТОНИЧЕСКИМ РАЗВИТИЕМ СТРУКТУР

2019 ◽  
pp. 16-22
Author(s):  
Насибова Г. Д. ◽  
Мухтарова Х. З.
Keyword(s):  
Oil And Gas ◽  
Deep Structure ◽  
Geophysical Methods ◽  
Seismic Exploration ◽  
The South ◽  
Gas Field ◽  
Foreign Companies ◽  
Oil And Gas Resources ◽  
Hydrocarbon Fields ◽  
Exploration Drilling

Over the past decades, discovery of giant hydrocarbon fields at the depth of above 10 km in the World oceans enables the possibility of identifying oil and gas at great depths of the South Caspian depression (SCD).The main oil and gas resources in this region are associated with the Productive Series (PS) -Red Series (RS) of the Lower Pliocene. Paleogene-Miocene and Mesozoic sediments in the southern Caspian are submerged to great depths, the prospects of their oil and gas potential are associated with the most uplifted tectonic zones.The Northern Absheron, that is considered as one of the promising areas of this region, covers the uplifts zone under the same name that is the most elevated tectonic unit of the South Caspian. The zone under consideration consists of two anticlinal lines, within which about 20 structures have been identified and explored. Currently, about 10 structures are covered by prospecting and exploration drilling and 5 prospective oil and gas structures have been identified: Absheron kupesi, Western Absheron, Novkhany, Ashrafi, Garabakh.Testing of exploration wells on the structures Gilavar, Hali, Arzu, Ashrafi, Mardakan-deniz and Oguz has not been positive. It should be noted that the deep structure of these uplifts is poorly studied by seismic exploration. Detailed integrated geophysical survey at modern technological and methodological levels is necessary to examine the relation of structural plans of sediments of various ages. The prospects oil and gas field exploration are associated with the lower part of the PS, Miocene, Cretaceous and Jurassic.It should be noted that despite negative conclusions of some foreign researchers on non-productiveness of the structures above, in recent years, the data obtained from the results of new geological and geophysical methods give SOCAR the basis to resume exploration drilling without involvement of foreign companies.

Tectonic state and oil-gas prospects of Khidirly-Bandovan structure according to the new gravimetric data

2020 ◽  
pp. 11-18
Author(s):  
A.S. Hasanov ◽  
◽  
◽  
Keyword(s):  
Geophysical Methods ◽  
Geological Mapping ◽  
Seismic Exploration ◽  
Huge Amount ◽  
Ray Method ◽  
Common Depth Point ◽  
Geophysical Surveys ◽  
Gravimetric Data ◽  
Exploration Drilling ◽  
Oil Gas

Khidirly-Bandovan structures have been studied through geological mapping, structural exploration drilling, geophysical methods (gravimetric, magnetic, electrical, seismic exploration methods) since the 1930s. Small amount of oil from different wells in the upper part of Productive Series (PS) and huge amount of gas fountain from Middle Absheron sediments have been obtained. As the interest to these areas had not decreased, the geophysical surveys continued during further years. Seismic exploration surveys were executed in Bandovan structure via Common Depth Point (CDP) method in 2004, refracted ray method and gravimetric exploration complex in 2006 and 3D seismic exploration works and gravimetric investigations with “Scintrex CG-5 Autograv” devices in 2016, correspondingly. In the result of analysis of distribution characteristics for local gravimetric anomalies, as well as 3D descriptions of new gravimetric data, up-to-date logs on tectonic state of Khidirly-Bandovan structure have been obtained and as the new oil-gas exploration objects, the west and south-west wings of these structures highlighted.

scholarly journals The Mesozoic of the South Caspian oil and gas province, Southwestern Turkmenistan – prospects for gas and oil exploration

2021 ◽  
pp. 102-133
Author(s):  
V.N. Melikhov ◽  
N.A. Krylov ◽  
I.V. Shevchenko ◽  
V.L. Shuster
Keyword(s):  
Oil And Gas ◽  
High Efficiency ◽  
State Of The Art ◽  
Oil Field ◽  
Seismic Exploration ◽  
Oil Exploration ◽  
The South ◽  
Analytical Review ◽  
Drilling Operations ◽  
Low Efficiency

Regarding the South Caspian oil and gas province, it is concluded that the Pliocene productivity prevails in the western part of the province, and that the gas and oil prospects of the eastern land side in the Mesozoic are prioritized. A retrospective analytical review of geological and geophysical data and publications on the Mesozoic of Southwestern Turkmenistan was carried out, which showed the low efficiency of the performed seismic and drilling operations in the exploration and evaluation of very complex Mesozoic objects. A massive resumption of state-of-the-art seismic exploration and appraisal drilling in priority areas and facilities performed by leading Russian companies is proposed. For some areas, a new, increased estimate of the projected gas resources is given. An example of modern high-efficiency additional exploration of the East Cheleken, a small Pliocene gas and oil field, which turned this field into a large one in terms of reserves, is given.

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 STRATEGIC ANALYSIS OF COMPETITIVE POSITIONS OF OIL AND GAS COMPANIES IN KAZAKHSTAN

2017 ◽  
pp. 79-85
Author(s):  
Tatyana Vasilyevna Pervitskaya ◽  
Olga Anatolievna Gavrilova ◽  
Tamara Nikolaevna Nikulina ◽  
Maria Vladimirovna Shendo
Keyword(s):  
Oil And Gas ◽  
Oil Production ◽  
World Market ◽  
Strategic Analysis ◽  
Foreign Companies ◽  
The Matrix ◽  
Exploration Drilling ◽  
Abc Analysis ◽  
Oil And Gas Companies ◽  
Oil Gas

The article highlights the methods of strategic analysis in order to define the competitive positions of oil and gas companies of Kazakhstan. The forecast of oil production in Kazakhstan in 2016-2030 in the context of land and sea production and the footage in exploration drilling in Kazakhstan in the context of the largest customers have been submitted. The main barriers for entering and functioning of the market of oil sale have been defined. Oil production by the companies subject to the share of "National Company KazMunaiGas", JSC has been analyzed. The characteristic of the market of oil production and petroservice has been given. The competitive analysis revealed that dynamics of the market share in 2015-2016 for the majority of the presented companies was stated as negative, which was the result of growing competition from the foreign companies (Chinese) and strengthening of competitive force of "JSCKazMunaiGas", JSC and its affiliates (50% and 100% societies). The strategic analysis of the leading oil and gas companies of Kazakhstan was fulfilled with application of methods of ABC analysis; it allowed to reveal groups of oil and gas companies in the Kazakhstan market which have the greatest impact on formation of significant indicators in the considered economic area. There has been built the matrix of analysis of growth rate of branch share and sales in the context of dynamics of exploration drilling, revenues from sales of oil, gas and their processing products. The market leader is "Tengizshevroil", JSC. It has been found that the external economic conditions, which were characterized by low price per oil barrel in the world market, had a great impact on the oil production sector in Kazakhstan.

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.

Geophysical investigation of deep crustal structure of the Siberian Platform region

1989 ◽  
Vol 20 (2) ◽  
pp. 39 ◽  
Author(s):  
V.S. Surkov ◽  
V.I. Lotyshev
Keyword(s):  
Crustal Structure ◽  
Siberian Platform ◽  
Oil And Gas ◽  
Deep Structure ◽  
Practical Importance ◽  
Geophysical Methods ◽  
Crustal Thickness ◽  
Crystalline Basement ◽  
The West ◽  
Deep Crustal Structure

A sparse network of regional profiles developed in Siberia using deep seismic sounding methods (DSS) does not allow a valid three dimensional model of Siberian deep crustal structure to be constructed. To create such a model, interpretation methods of available geophysical and geological data are suggested. These are based on modelling of geological objects using potential fields. Information on DSS key profiles is considered to be key data.The results of such interpretation are shown in the crustal thickness map and in that of crystalline basement, as well as on a deep geological-geophysical profile across the West Siberian Plate and Siberian Platform. The crustal thickness in Siberia varies from 30 to 55 km. It is on average 4?6 km thicker on the Siberian Platform than the West Siberian Plate. The least crustal thickness of 30 to 33 km appears to be beneath regions with maximum thickness of Mesozoic deposits. Modern and Early Mesozoic rift zones are characterized by decreased crustal thickness of 36?39 km. Ancient shields of the Siberian Platform and adjacent folded mountain units are up to 45?55 km thick.The geometry of the top of crystalline basement in the young West Siberian Plate is sharply different from that of the ancient Siberian Platform. Within the West Siberian Plate structural features with 5 to 11 km of relief dominate, while on the Siberian Platform the structural relief varies from 2?3 to 14 km.The peculiarities of deep crustal structure have greatly influenced the formation and distribution of sedimentary units. The constructed section shows the depths and thicknesses of the Riphean, Vendian?Silurian, Devonian?Middle Triassic and Mesozoic?Cenozoic megacomplexes, most promising for oil and gas in Siberia. Data obtained on the deep structure of Siberian Platform regions are thus of great practical importance. They can be used to predict areas of petroleum potential and determine optimal trends of further oil and gas exploration by geophysical methods.

scholarly journals Assessment of undiscovered oil and gas resources of the South Africa Coastal Province, Africa

Fact Sheet ◽  
2012 ◽  
Author(s):  
Michael E. Brownfield ◽  
Christopher J. Schenk ◽  
Ronald R. Charpentier ◽  
Timothy R. Klett ◽  
Troy A. Cook ◽  
...  
Keyword(s):  
South Africa ◽  
Oil And Gas ◽  
The South ◽  
Oil And Gas Resources ◽  
Coastal Province

scholarly journals Replenishment of oil deposits from the position of a new concept of oil and gas formation

Georesursy ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 40-48 ◽  
Author(s):  
Renat Kh. Muslimov ◽  
Irina N. Plotnikova
Keyword(s):  
Oil And Gas ◽  
Deep Structure ◽  
Sedimentary Cover ◽  
Crystalline Basement ◽  
The South ◽  
Gas Saturation ◽  
Oil Reserves ◽  
Long Term Study ◽  
The Earth ◽  
Deep Wells

The article is devoted to the problem of replenishing of oil reserves and considers it (the problem) in the aspect of deep degassing of the Earth. Based on an analysis of the results of a long-term study of the Precambrian crystalline basement in the territory of Tatarstan and adjacent areas, a number of new criteria are formulated that allow us to identify the processes of deep degassing of the Earth within the studied region. The article provides a brief overview of current views on the problem of replenishing oil reserves, considers options for possible sources and the mechanism of replenishment of hydrocarbons in the developed deposits. The arguments in favor of the modern process of deep degassing within the South Tatar arch and adjacent territories are examined, which are unequivocally confirmed by: the dynamics of the hydrochemical parameters of the deep waters of the crystalline basement obtained in the monitoring mode at five deep wells; uneven heat flux and its anomalies, recorded according to many years of research under the guidance of N.N. Khristoforova. The degassing processes are also confirmed by the dynamics of gas saturation of decompressed zones of the crystalline basement recorded in well 20009-Novoelkhovskaya, the dynamics of gas saturation of oil of the sedimentary cover and the composition of the gas dissolved in it, identified by oil studies in piezometric wells located in different areas of the Romashkinskoye field; the seismicity of the territory of Tatarstan, as well as its neotectonic activity. As criteria proving the existence of a process of replenishing the reserves of the developed oil fields of the South Tatar Arch, the features of the deep structure of the earth’s crust according to seismic data, as well as the results of geochemical studies of oils are considered.

scholarly journals The oil and gas potential of the north of the Siberian platform and adjacent shelf

2021 ◽  
Vol 1201 (1) ◽  
pp. 012076
Author(s):  
A N Dmitrievskiy ◽  
N A Eremin ◽  
N A Shabalin ◽  
I K Basnieva ◽  
A T Kondratyuk
Keyword(s):  
Siberian Platform ◽  
Seismic Data ◽  
Oil And Gas ◽  
Deep Structure ◽  
The Arctic ◽  
The North ◽  
Common Depth Point ◽  
Oil And Gas Resources ◽  
The Common ◽  
Gas Potential

Abstract The objective of this article is an estimation of the oil and gas potential of the north of the Siberian platform and adjacent shelf. The Siberian platform is characterized by a large concentration of oil and gas resources in the southern and central parts of the platform. The main oil and gas province of the Siberian Platform is the Leno-Tungus oil and gas province. The oil- bearing strata in the Lena-Tungus oil and gas province are confined to the Riphean, Vendian, Lower-Middle Cambrian deposits, in which large oil and gas fields are discovered. In modern contours the Siberian platform in the north and north-west is fringed by the Yenisei-Khatanga regional trough. In the east, the Yenisei-Khatanga regional trough is connected with the Anabar- Lena trough, framing the north-eastern part of the Siberian platform. Analysis of the available geological and geophysical materials shows a fairly high potential of the Anabar-Lena and Yenisei-Khatanga troughs for the discovery of large hydrocarbon fields. The basic understanding of the geologic-tectonic structure and petroleum potential of the northern part of the Siberian Platform and the adjacent shelf of the Arctic zone are currently based on seismic data by the method of the common depth point (CDP), tied to the existing deep search and parametric wells. Representations of the deep structure and oil and gas potential of specific areas, the allocation of targeted promising oil and gas horizons can change dramatically as the depth of seismic acquisition of the method of the common depth point increases and the software for processing and interpreting seismic data is improved. The localized oil and gas resources of the north of the Siberian platform and adjacent shelf are 41017,3, subsequently, 27582,3 - onshore and offshore - 13435 MMT (million tons) of oil equivalent.

scholarly journals Application of scattered and emitted seismic waves for improving efficiency of exploration and development of hydrocarbon fields

2017 ◽  
pp. 54-59
Author(s):  
O. L. Kouznetsov ◽  
V. G. Gaynanov ◽  
A. A. Radwan ◽  
I. A. Chirkin ◽  
E. G. Rizanov ◽  
...  
Keyword(s):  
Seismic Waves ◽  
Oil And Gas ◽  
Seismic Exploration ◽  
Side View ◽  
Gas Wells ◽  
Seismic Location ◽  
Hydrocarbon Fields ◽  
Observation Selection ◽  
Hydrocarbon Deposits ◽  
Exploration And Development

The success of drilling oil and gas wells is largely determined by the presence of high HC-content and permeability of the reservoir at the point of penetration. For a reliable study of these characteristics should be used microseismic emission and the scattered reflection waves. For their observation, selection and positioning in geomedium we developed technology “Seismic Location of Emission Centers” and “Side-View Seismic Location”, which significantly extend the range of problems solved during seismic exploration of hydrocarbon deposits. Examples of application of these technologies in the exploration and development of hydrocarbon deposits are provided.

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