Sedimentary Geochemistry in the Region of Hydrocarbon Deposits

Nadym-Pursk oil and gas region has been one of the main areas for the production of hydrocarbon raw materials since the sixties of the last century. A significant part of hydrocarbon deposits is at the final stage of field development. An increase in gas and oil production is possible subject to the discovery of new fields. The search for new hydrocarbon deposits must be carried out taking into account an integrated research approach, primarily the interpretation of seismic exploration, the creation of geological models of sedimentary basins, the study of geodynamic processes and thermobaric parameters. Statistical analysis of geological parameters of oil and gas bearing complexes revealed that the most promising direction of search are active zones — blocks with the maximum sedimentary section and accumulation rate. In these zones abnormal reservoir pressures and high reservoir temperatures are recorded. The Cretaceous oil and gas megacomplex is one of the main prospecting targets. New discovery of hydrocarbon deposits are associated with both additional exploration of old fields and the search for new prospects on the shelf of the north. An important area of geological exploration is the productive layer of the Lower-Berezovskaya subformation, in which gas deposits were discovered in unconventional reservoirs.

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Improving the Geodynamic Safety of the Developed Hydrocarbon Fields in the Oil and Gas Bearing Basin

Occupational Safety in Industry ◽

10.24000/0409-2961-2021-8-45-51 ◽

2021 ◽

pp. 45-51

Author(s):

Yu.R. Vladov ◽

◽

M.Yu. Nesterenko ◽

Yu.M. Nesterenko ◽

A.Yu. Vladova ◽

...

Keyword(s):

Oil And Gas ◽

Theoretical Data ◽

Additive Models ◽

Federal Law ◽

Distribution Law ◽

Pearson Criterion ◽

Geological Conditions ◽

Geodynamic Processes ◽

Hydrocarbon Fields ◽

Hydrocarbon Deposits

The predominant area of application of the developed methodology is the construction of the distribution of the geodynamic state of the developed hydrocarbon fields in oil and gas basin, and the identification of the corresponding distribution law. A number of the hydrocarbon deposits in terms of geological conditions of occurrence, structure and other parameters are geodynamically hazardous during their development. The Federal Law «On Subsurface Resources» (Article 24) requires conducting a complex of geological, surveying, and other observations sufficient for ensuring a normal technological cycle of work, and the prediction of hazardous situations. The developed methodology based on the construction of aggregated additive models for each reservoir and field is presented. It includes four sequential stages (24 operations): first — prepare geodynamic data; second — determine the geodynamic state of productive strata; third — find the geodynamic state of the developed deposits subsoil; fourth — build the distribution of the bowels geodynamic state of these fields for the entire oil and gas basin and identify the relevant distribution law. Oil and gas basin in the west of the Orenburg Region (Volga — Ural and Caspian oil and gas provinces) is considered as an example of implementation. Unique data of twenty geodynamic parameters of 320 productive strata (56 fields) were used. It is revealed that in accordance with the Pearson criterion, the theoretical data with a high confidence probability (95 %) correspond to the law of normal distribution. Developed methodology has significant technical and economic advantages, since it allows to identify the geodynamic state of productive strata and subsoil of the fields being developed, to identify hazardous geodynamic processes and to choose rational modes for the development of hydrocarbon deposits.

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The geosolitonic concept of high output hydrocarbon deposits formation

Oil and Gas Studies ◽

10.31660/0445-0108-2021-6-13-22 ◽

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.

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Offshore field trial application of low-frequency passive microseismic technology in the North Sea for exploration, appraisal and development of hydrocarbon deposits

First Break ◽

10.3997/1365-2397.fb2021027 ◽

2021 ◽

Vol 39 (4) ◽

pp. 45-50

Author(s):

Vasilii Ryzhov ◽

Dmitrii Ryzhov ◽

Ilshat Sharapov ◽

Sergey Feofilov ◽

Evgeny Smirnov ◽

...

Keyword(s):

North Sea ◽

Field Trial ◽

Low Frequency ◽

The North ◽

The North Sea ◽

Offshore Field ◽

Hydrocarbon Deposits

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