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

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.

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 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.

scholarly journals LIGHT CEMENT MIXTURES

2018 ◽  
pp. 42-45
Author(s):  
V. M. Orlovskyi ◽  
A. M. Pokhylko
Keyword(s):  
Oil And Gas ◽  
Thermal Power ◽  
Technological Properties ◽  
Power Stations ◽  
Thermal Power Stations ◽  
Cement Mortars ◽  
Geological Conditions ◽  
Hydrocarbon Fields ◽  
Well Cement ◽  
Cement Mixtures

Lightweight cement mixtures with high technological properties based on the standard well cement Portland cement ПЦТІ-100 and building cements ПЦІ-500-Н, ШПЦ Ш/А-400 with a light impurity-acid fly ash of thermal power stations were developed and investigated. The minimum density of cement mortars based on the developed mixtures is, respectively, 1 460–1 530 and 1 580–1 650 kg/m3, while ensuring the high quality of other technological properties of cement mortar and stone. The development and selection of optimal recipes for new lightweight cement mixtures has been carried out. The results of the work are of practical use in cementing oil and gas wells in complex mining and geological conditions in geological exploration areas and industrial hydrocarbon fields.

scholarly journals Geodynamic and geological factors in the formation of large hydrocarbon deposits in subsalt sediments of the North Caspian region

2020 ◽  
Vol 63 (2) ◽  
pp. 47-60
Author(s):  
S. A. Aliyeva
Keyword(s):  
Subduction Zones ◽  
Oil And Gas ◽  
Upper Devonian ◽  
Lower Permian ◽  
Northwestern Part ◽  
Caspian Region ◽  
The North ◽  
Geological Conditions ◽  
Geological Factors ◽  
Hydrocarbon Deposits

Background. The Astrakhan-Primorsk region of oil and gas deposits located in the North Caspian region is one of the world’s largest reserves of hydrocarbons. This region stretches from land in the northwestern part of the Caspian basin, through the northern waters of the Caspian, to the south-eastern land part of the region under consideration.Aim. To identify geodynamic and geological factors in the formation of large hydrocarbon deposits in subsalt sediments in the complex structure of the North Caspian region of the Caspian syneclise. Materials and methods. An analysis of data on the geodynamic and geological evolution of the North Caspian region of the Caspian syneclise revealed specific features of its geological structure and development.Results. The nature of the formation series, as well as the geodynamic and geological conditions (the presens of spreading and subduction zones that caused an intense heat flow, the presense of an isolated sedimentation basin with intensive accumulation of carbonates in the Upper Devonian-lower Permian, a powerful salt-bearing Kungurian cap) were favourable for the generation, migration and accumulation of hydrocarbons in large tectonic-sedimentary Upper Devonian–Lower Permian uplifts characteristic of the Astrakhan-Primorsk oil-and-gas bearing region of the North Caspian. These uplifts were formed by shelf bioherms, barrier reefs and large reeftogenic atolls and emerged through ancient troughs. The large hydrocarbon accumulations, such as Kashagan, Tengiz, Astrakhanskoye and Korolevskoye, with high specific hydrocarbon reserves (more than 100 thousand/km2) are associated with these troughs.Conclusion. During the Upper Paleozoic, the main paleodepressions of the isolated basin of the North Caspian underwent a steady and long-term subsidence process, favourable for the accumulation of a thick stratum of carbonate (mainly reef) formations. This period was also characterized by the geothermal and baric conditions necessary for the transformation and subsequent migration of hydrocarbons from oil- and gas-producing complexes to reservoirs, which were mainly presented by massive carbonate formations of reef genesis. The as-formed deposits were preserved by thick salt-bearing Kungurian sediments. Directions for prospecting and exploration works aimed at discovering new hydrocarbon deposits in the subsalt sediments of the region were outlined.

Magnetic and gravity anomaly patterns related to hydrocarbon fields in northern West Siberia

Geophysics ◽  
1997 ◽  
Vol 62 (3) ◽  
pp. 831-841 ◽  
Author(s):  
Alexey L. Piskarev ◽  
Mikhail Yu Tchernyshev
Keyword(s):  
Potential Field ◽  
Oil And Gas ◽  
Spatial Relationship ◽  
Gravity Anomalies ◽  
West Siberia ◽  
Gas Reservoirs ◽  
Gravity And Magnetic ◽  
High Gradients ◽  
Hydrocarbon Fields ◽  
Hydrocarbon Deposits

A study of the features of gravity and magnetic fields in the vicinity of oil and gas reservoirs in West Siberia demonstrated a spatial relationship with the hydrocarbon deposits. The relevant magnetic and gravity anomalies cover approximately [Formula: see text] in northern West Siberia. Amplitude and frequency were investigated initially using double Fourier spectrum (DFS) analysis. This was followed by (1) application of transformations, filtering, and “moving windows” analysis; (2) compilation of maps of regional and local anomalies, and potential field derivatives; and (3) investigation of the distribution of parameters in areas of known deposits. Hydrocarbon deposits are located mostly at the slopes of positive regional gravity and magnetic anomalies which are interpreted as relating to deep riftogenic structures. At the same time, it is established that the location of hydrocarbon depositions coincides commonly with local gravity and magnetic minima generated by lows in basement density and magnetization. All known hydrocarbon deposits in northern West Siberia are in areas characterized by comparatively high gradients of constituent of gravity anomalies with a wavelength of about 90–100 km. These newly revealed links between reservoirs and potential field parameters may be a means to predict new discoveries in poorly explored territories and seas, primarily in Russia's Arctic shelf.

scholarly journals Analysis of tendencies of oil and gas engineering development

2020 ◽  
pp. 90-100
Author(s):  
O. V. Panevnyk ◽  
D. O. Panevnyk
Keyword(s):  
Oil And Gas ◽  
New Technologies ◽  
Spare Parts ◽  
Gas Production ◽  
Engineering Industry ◽  
Local Conditions ◽  
Oil Companies ◽  
Service Companies ◽  
Geological Conditions ◽  
Hydrocarbon Deposits

Based on the study of the dynamics of global costs for oilfield equipment, it was found that its production shows slow growth, the largest share of oil and gas machinery is in North America, and the largest segment of production belongs to the manufacture of equipment for collecting and transporting hydrocarbons and pipe products. In the process of analysis of the nomenclature and geography of production of machines, mechanisms, individual components and parts of drilling and oil and gas equipment, the inconsistency of the level of development of oil and gas engineering in Ukraine with the needs of the fuel and energy complex is shown. The required level of production of equipment and spare parts directly depends on the quality of maintenance of oil and gas machines, which with the development of new technologies for the development of hydrocarbon fields should increase. The main reasons for failures of oil and gas equipment are the lack of proper maintenance. Domestic oil companies are focused on the import of oil equipment, and a negative problem for the development of the domestic market of oil services is the reduction of their own production of oil and gas equipment. One of the most important competitive advantages of domestic service companies is a lower level of prices for services, as well as a deeper knowledge of the specifics and features of local conditions for the development of hydrocarbon deposits. An important aspect of the development of the service market is the transition to innovative technologies in the field of geological engineering and drilling. In accordance with the development trends of the world oil and gas engineering industry, the staffing requirements of service companies are increasing. Given the complexity of mining and geological conditions for the development of hydrocarbon deposits, the development of new technologies for oil and gas production requires increasing attention to training specialists who are aware of modern methods of design, operation and maintenance of oil and gas equipment.

Cryogels as a solution to the issues of environmental management and trunk pipeline operation in Arctic

2020 ◽  
Vol 10 (2) ◽  
pp. 173-185
Author(s):  
Lyubov K. Altunina ◽  
◽  
Vladimir P. Burkov ◽  
Petr V. Burkov ◽  
Vitaly Y. Dudnikov ◽  
...  
Keyword(s):  
Composite Materials ◽  
Field Experiments ◽  
Oil And Gas ◽  
Soil Layer ◽  
Soil Microflora ◽  
Russian Arctic ◽  
Thaw Cycle ◽  
Trunk Pipeline ◽  
Geological Conditions ◽  
Spatial Lattice

In the Russian Arctic, a soil cryostructuring technique (i.e. strengthening of soil horizons with cryogel-based composite materials with no excavation of unstable soils required) seems to be showing promise. Experiments have proven that mechanical and thermal insulation properties attributed to cryogels make them appropriate for use in strengthening and thermally insulating the soil, while their structure makes it possible to form a stable vegetation cover. Field experiments have confirmed that cryostructuring efficiently strengthens the soil layer with cryogels stimulating soil microflora. An experience of using cryotropic compositions in the oil and gas sector was described. Notably, cryogels can be used to strengthen unstable soil foundations of trunk pipelines, as well as to bind soil (e.g. on slopes). In addition, cryogels are advised for use in engineering protection to prevent the uneven settlement of a trench base and its creep: thus, cryogels are pumped into the soil of the trench bottom base to create a support system representing a spatial lattice. After the first freeze and thaw cycle, cryotropic material is formed and then increases its strength and elasticity with each new cycle. More broadly, opportunities have been considered regarding cryogels used in various engineering and geological conditions, while taking into account the outcomes of landscape and territorial analysis. It was concluded that cryogel-based composite materials are a promising innovative scientific field expanding technological capabilities for developing and using spaces and resources in the Russian Arctic.

scholarly journals Geothermal Boreholes in Poland—Overview of the Current State of Knowledge

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3251
Author(s):  
Tomasz Sliwa ◽  
Aneta Sapińska-Śliwa ◽  
Andrzej Gonet ◽  
Tomasz Kowalski ◽  
Anna Sojczyńska
Keyword(s):  
Heat Exchangers ◽  
Oil And Gas ◽  
Produced Water ◽  
Geothermal Water ◽  
Laboratory System ◽  
Water Production ◽  
Injection Wells ◽  
Geological Conditions ◽  
Geothermal Wells ◽  
Borehole Heat Exchangers

Geothermal energy can be useful after extraction from geothermal wells, borehole heat exchangers and/or natural sources. Types of geothermal boreholes are geothermal wells (for geothermal water production and injection) and borehole heat exchangers (for heat exchange with the ground without mass transfer). The purpose of geothermal production wells is to harvest the geothermal water present in the aquifer. They often involve a pumping chamber. Geothermal injection wells are used for injecting back the produced geothermal water into the aquifer, having harvested the energy contained within. The paper presents the parameters of geothermal boreholes in Poland (geothermal wells and borehole heat exchangers). The definitions of geothermal boreholes, geothermal wells and borehole heat exchangers were ordered. The dates of construction, depth, purposes, spatial orientation, materials used in the construction of geothermal boreholes for casing pipes, method of water production and type of closure for the boreholes are presented. Additionally, production boreholes are presented along with their efficiency and the temperature of produced water measured at the head. Borehole heat exchangers of different designs are presented in the paper. Only 19 boreholes were created at the Laboratory of Geoenergetics at the Faculty of Drilling, Oil and Gas, AGH University of Science and Technology in Krakow; however, it is a globally unique collection of borehole heat exchangers, each of which has a different design for identical geological conditions: heat exchanger pipe configuration, seal/filling and shank spacing are variable. Using these boreholes, the operating parameters for different designs are tested. The laboratory system is also used to provide heat and cold for two university buildings. Two coefficients, which separately characterize geothermal boreholes (wells and borehole heat exchangers) are described in the paper.

Main directions of searching for hydrocarbons in Nadym-Pursk oil and gas region

2021 ◽  
pp. 23-31
Author(s):  
Y. I. Gladysheva
Keyword(s):  
Oil And Gas ◽  
Raw Materials ◽  
Accumulation Rate ◽  
Sedimentary Basins ◽  
Seismic Exploration ◽  
Research Approach ◽  
Field Development ◽  
The North ◽  
The Sixties ◽  
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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