scholarly journals Hazardous natural processes and risks at offshore fields development with the use of subsea production of hydrocarbons (In English).

2020 ◽  
Vol 1 (8) ◽  
pp. 5-13
Author(s):  
Aleksandr Dziublo ◽  
Keyword(s):  
Oil And Gas ◽  
Climatic Conditions ◽  
Gas Production ◽  
Soil Liquefaction ◽  
Project Implementation ◽  
Remedial Measures ◽  
Oil And Gas Fields ◽  
Sakhalin Shelf ◽  
Depth Analysis ◽  
Gas Fields

Introduction. The article considers the main risks (technological, geological, societal and environmental) of offshore fields development, facilities construction and exploitation with the use of subsea production of hydrocarbons. Research aim is to analyze the main risks of offshore oil and gas projects implementation, which are associated with harsh natural and climatic conditions of the Sakhalin Island shelf, their impact on subsea facilities and to develop the remedial measures for the risks. Methodology. Risk analysis made it possible to identify the main risk factors in offshore projects development and determine remedial measures that are high-priority in offshore field exploitation at the stage of design and, most importantly, at the stage of project implementation. Analysis and discussion. Based on actual data of large oil and gas fields development, an in-depth analysis of the main risks associated with the climatic conditions on the Sakhalin shelf has shown that the region’s main geological risks are: seismicity, surface gas, seabed gouging by ice and soil liquefaction. Therefore, it is necessary to use modern environmentally sound technologies of subsea oil and gas production, which are based on successfully implemented projects abroad and the experience of shelf fields development in Russian. Conclusion. Effective development of oil and gas fields on the Sakhalin shelf is possible only if in the course of project implementation the geological, technological, societal and environmental risks are taken into account and controlled based on the developed remedial measures.

scholarly journals NATURAL AND ANTHROPOGENIC DYNAMICS OF PERMAFROST SOILS IN THE AREAS OF OIL AND GAS PRODUCTION IN YAMALO-NENETS AUTONOMOUS OKRUG

2015 ◽  
pp. 99-104 ◽  
Author(s):  
N. L. Mamaeva ◽  
S. A. Petrov
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Permafrost Rocks ◽  
Oil And Gas Fields ◽  
Permafrost Soils ◽  
Extreme North ◽  
Gas Fields ◽  
Cryogenic Processes ◽  
Nenets Autonomous

A research and comparison of natural and damaged (due to the active development of oil and gas fields) permafrost soils in the Jamalo-Nenets Autonomous Okrug were carried out. The analysis was run of correlation between an average monthly temperature of air, an average monthly sum of precipitation, the weight humidity and the thickness of the seasonal thawed layer. The conclusions were drawn about a poor resistance of landscapes on the permafrost rocks to the anthropogenic interventions, which in its turn is accompanied by the cryogenic processes and unfavorable influences on the Extreme North biosphere.

Exploitation of oil and gas fields by horizontal wells

2021 ◽  
Author(s):  
Andrey Serebryakov ◽  
Gennadiy Zhuravlev
Keyword(s):  
Oil And Gas ◽  
Horizontal Wells ◽  
Gas Production ◽  
Federal State ◽  
Oil And Gas Production ◽  
Oil And Gas Fields ◽  
Bottom Hole ◽  
Production Wells ◽  
State Educational ◽  
Gas Fields

The textbook describes the design features of offshore horizontal multi-hole production wells, as well as the bottom-hole components of horizontal multi-hole wells. The classification of complications of multi-hole horizontal wells, methods of their prevention and elimination are given. Methods of underground geonavigation of the development of offshore horizontal production wells are proposed. The geological and field bases of operation of horizontal offshore multi-hole oil and gas wells, modes and dynamics of oil, gas and associated water production, methods for calculating dynamic bottom-hole and reservoir pressures are specified. The technologies of operation of offshore horizontal multi-hole wells are presented. The composition and scope of environmental, field and research marine monitoring of the operation of offshore horizontal multi-hole wells and the protection of the marine environment in the production of oil and gas are justified. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for undergraduates of the enlarged group of "Earth Sciences" training areas, as well as for teachers, employees of the fuel and energy complex, industrial geological exploration and oil and gas production enterprises, scientific and design organizations.

The tectonic and stratigraphic framework of the United Kingdom's oil and gas fields

2003 ◽  
Vol 20 (1) ◽  
pp. 17-59 ◽  
Author(s):  
John R. Underhill
Keyword(s):  
Oil And Gas ◽  
Wide Spectrum ◽  
Sedimentary Basins ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Oil And Gas Fields ◽  
East Midlands ◽  
Self Sufficiency ◽  
Stratigraphic Framework ◽  
Gas Fields

AbstractOnshore exploration success during the first half of the 20th century led to petroleum production from many, relatively small oil and gas accumulations in areas like the East Midlands, North Yorkshire and Midland Valley of Scotland. Despite this, the notion that exploration of the United Kingdom's continental shelf (UKCS) might lead to the country having self-sufficiency in oil and gas production would have been viewed as extremely fanciful as recently as the late 1950s. Yet as we pass into the new century, only thirty-five years on from the drilling of the first offshore well, that is exactly the position Britain finds itself in. By 2001, around three million barrels of oil equivalent were being produced each day from 239 fields. The producing fields have a wide geographical distribution, occur in a number of discrete sedimentary basins and contain a wide spectrum of reservoirs that were originally deposited in diverse sedimentary and stratigraphic units ranging from Devonian to Eocene in age. Although carbonates are represented, the main producing horizons have primarily proved to be siliciclastic in nature and were deposited in environments ranging from aeolian and fluviatile continental red beds, coastal plain, nearshore beach and shelfal settings all the way through to deep-marine, submarine fan sediments. This chapter attempts to place each of the main producing fields into their proper stratigraphic, tectonic and sedimentological context in order to demonstrate how a wide variety of factors have successfully combined to produce each of the prospective petroleum play fairways and hence, make the UKCS such a prolific and important petroleum province.

scholarly journals Technogenic risks of building and operation of oil and gas complexes in offshore area of the Caspian Sea

2019 ◽  
Vol 2019 (4) ◽  
pp. 46-59
Author(s):  
Николай Панасенко ◽  
Nikolay Panasenko ◽  
Алексей Синельщиков ◽  
Aleksey Sinel'schikov ◽  
Павел Яковлев ◽  
...  
Keyword(s):  
Caspian Sea ◽  
Oil And Gas ◽  
Gas Production ◽  
The Caspian Sea ◽  
Oil And Gas Production ◽  
Offshore Area ◽  
Oil And Gas Fields ◽  
Offshore Oil And Gas ◽  
Gas Fields ◽  
Offshore Oil

The article touches upon the problem of technogenic risks arising in the course of building and operating oil and gas complexes in the Caspian Sea taking into account the adoption of the Con-vention on the legal status of the Caspian Sea and regulation of the territorial division of the Caspian Sea. Technological risks are presented from the position of safety of industrial facilities in the offshore area and in the coastal zone, the impact of these facilities on the ecology of the Caspian is considered. The risk analysis was carried out taking into account world experience, as well as incidents that occurred at the offshore oil and gas production facilities in the Caspian Sea. There has been presented the layout of oil and gas fields at the bottom of the Caspian Sea and the division of the bottom based on adopting the Convention. A general description of the Caspian Sea has been given; unique features of the Caspian and the most unexplored seismic effects have been stated. It has been recommended to conduct a comprehensive assessment of the state of the seabed according to seismological, mud, volcanic and engineering-geological conditions; to develop measures for preventing and reducing the damage from hazardous natural processes and exploitation of oil and gas fields; to forecast the fluctuations of the Caspian Sea level, taking into account today’s economic activity; to study the natural and technogenic factors determining the environmental safety of the Caspian Sea; to monitor seismic phenomena, crustal movement in zones of tectonic faults at the sea bottom, etc. The speed and direction of wind currents in the Caspian Sea have been analyzed. The maps of mud volcanoes location in the Caspian basin (located on land, hidden and identified by seismic, geological, geophysical and geochemical methods, etc.) are illustrated. Conclusions are made about the high risks for developing hydrocarbon deposits in the Caspian Sea basin. There is the need to take into account environmental requirements and standards, to use modern technologies, to prevent incidents at offshore oil and gas production facilities.

scholarly journals Study and apply the advanced analysis algorithm to screen the optimal enhanced oil recovery solution for oil and gas fields in Viet Nam

2021 ◽  
Vol 62 (3a) ◽  
pp. 17-29
Author(s):  
Long Hoang ◽  
Thang Viet Trinh ◽  
Truong Hung Trieu ◽  
Quy Minh Nguyen ◽  
Ngoc Quy Pham ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Large Scale ◽  
Oil And Gas ◽  
Modern Technology ◽  
Oil And Gas Fields ◽  
Depth Analysis ◽  
The World ◽  
Advanced Analysis ◽  
Gas Fields

Applying the methods of enhanced oil recovery (EOR) for oil and gas fields has always many risks of economic and technology because EOR projects are influenced by many characteristic factors of the reservoir such as structure of reservoir, reservoir formation, geological properties, parameters of reservoir engineering, production technology to EOR application. Some EOR methods have been successfully applied in the world, but when these methods conduct in specific reservoir with different geological characteristics, tight production conditions have resulted in failures and ineffective economic, even caused dreadful aftermath to be handled in operations. Researches, evaluations and EOR applications in Vietnam are limited and only carried out on a laboratory scale. Therefore, the ability to be applied the EOR modern technology with a large scale or full field still faces many difficulties and the feasibility of projects is not high enough. The authors have been analysed all EOR projects successfully that applied many oil and gas fields in the world and then building EOR database. Based on EOR database, a study has been conducted on statistical analysis to build EOR screening criteria for reservoir parameters from past to now. The study also combined in-depth analysis algorithms such as Fuzzy, K - mean, PCA Artificial Intelligence to screen the optimal EOR method for sandstone reservoirs of Cuu Long Basin.

scholarly journals FOR THE PRINCIPLES OF STEPPE LANDSCAPES OPTIMIZATION UNDER OIL AND GAS PRODUCTION

2020 ◽  
Author(s):  
K.V. Myachina ◽  
Keyword(s):  
Natural Environment ◽  
Oil And Gas ◽  
Steppe Zone ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Oil And Gas Fields ◽  
Steppe Region ◽  
Gas Fields ◽  
Ecological Optimization

A number of principles of geo-ecological optimization of landscapes of the Volga-Ural steppe region that are influenced by oil and gas production are proposed. The optimization provisions are developed taking into account the classical approaches to optimizing the natural environment and the principles of formation and functioning of technogenic geosystems of oil and gas fields in the steppe zone.

scholarly journals Computer technologies to determine offshore facilities suitable for the climatic conditions

2021 ◽  
Vol 1201 (1) ◽  
pp. 012068
Author(s):  
I Shatrovskii ◽  
A Zolotukhin
Keyword(s):  
Network Performance ◽  
Oil And Gas ◽  
Climatic Conditions ◽  
Future Research ◽  
Data Set ◽  
Oil And Gas Fields ◽  
Computer Technologies ◽  
Offshore Oil And Gas ◽  
Gas Fields ◽  
Python Programming

Abstract This article provides an overview of computer technologies and an analysis of their application possibilities to determine the quantitative and qualitative composition of the facilities for the development of offshore oil and gas fields for given climatic conditions. The first question covered in the article is how to form a data set including the information about offshore fields development conditions. The author gives examples of using the Python programming language, NumPy, Tesseract and OpenCV libraries for that purpose. For each designated variable, a test program code was done to obtain the required value. Another question, which is given in the article, is how to analyze the obtained results and determine which offshore facilities are best suited for certain climatic conditions. For this purpose, a deep neural network of forwarding propagation was created with the help of Keras, TensorFlow and Scikit-learn Python libraries. The network performance was tested on a sample of a small size, the results were analyzed, and future research tasks were defined.

scholarly journals Development of the digital oil and gas complex in Arctic areas of Russia

2021 ◽  
Vol 1201 (1) ◽  
pp. 012075
Author(s):  
A N Dmitrievskiy ◽  
N A Eremin ◽  
A T Kondratyuk ◽  
I K Basnieva
Keyword(s):  
Large Scale ◽  
Oil And Gas ◽  
Cost Optimization ◽  
Research Work ◽  
Digital Technologies ◽  
Integrated Approach ◽  
Climatic Conditions ◽  
Gas Production ◽  
Capital Productivity ◽  
Gas Fields

Abstract This article examines the issues of digital modernization of the oil and gas complex of Russia, the evolution of digital oil and gas technologies. The main results of research work in the field of creating digital technologies for preventing complications and accidents, transferring drilling data in blockchain format, monitoring the state of pipelines using magnetic tomography are briefly outlined. The digital modernization strategy is aimed at large-scale digitalization of oil and gas production facilities and lays a reliable basis for the growth of capital productivity of fields in the long term. The approach is based on improving the quality of management, analyzing the effectiveness of control actions when using an integrated model or a digital twin of the field. The integrated application of digital technologies for effective management is the basis for cost optimization, ensuring the transition to robotic control, and increasing the capital productivity ratio of key gas assets. These solutions are especially effective in regions with difficult natural and climatic conditions or undeveloped infrastructure, Arctic fields. The proposed integrated approach makes it possible to extend the periods of profitable exploitation of gas fields at the stage of declining production and complicated production conditions. By the end of 2025, the number of digital fields using technologies for processing Big Geo Data will exceed 10% of the total number of oil and gas fields in Russia.

Decommissioning Offshore Production Facilities

2002 ◽  
Author(s):  
Fabio M. Ruivo ◽  
Celso K. Morooka
Keyword(s):  
Oil And Gas ◽  
Gas Production ◽  
International Affairs ◽  
Oil And Gas Production ◽  
Oil And Gas Fields ◽  
Offshore Oil And Gas ◽  
National Industry ◽  
Gas Fields ◽  
Offshore Oil ◽  
Production Facilities

Decommissioning offshore oil and gas production facilities have been progressively increasing the concern of the industry, government and other interest groups through the last years. There are at least two reasons for this sudden regard. First, it is the maturing of several oil and gas fields around the world in recent years. Second, it is the growing impact of environmental concerns in international affairs. Despite several works published address to some techniques and to potential problems and risks related to decommissioning offshore oil and gas production installations its procedures are in some extent an innovative issue, especially in Brazil. Therefore, the motivation of this paper is the novelty of the subject in Brazil, since the national industry is just beginning to deal with the end-of-leasing obligations, which involve decommissioning operations. The main ambition is to stimulate debate about appropriate issues.

scholarly journals REGARDING REAL PROSPECTS FOR DISCOVERING NEW DEPOSITS AND INCREASING OIL AND GAS PRODUCTION IN THE WESTERN REGION OF UKRAINE

2019 ◽  
pp. 7-19
Author(s):  
L. S. Monchak ◽  
S.H. Anikeiev ◽  
G.O. Zhuchenko ◽  
T. V. Zderka ◽  
Yu. L. Monchak ◽  
...  
Keyword(s):  
Cross Sections ◽  
Oil And Gas ◽  
Gas Production ◽  
Gas Content ◽  
Western Region ◽  
Oil And Gas Production ◽  
Oil And Gas Exploration ◽  
Oil And Gas Fields ◽  
The Western Region ◽  
Gas Fields

The article deals with the research of the potential of oil-and-gas content within the Western Ukrainian oil and gas region.  The main directions and ways of increasing oil and gas production are determined. Consequently, the discovery of new hydrocarbon fields is the major direction to boost oil and gas production. The issue of the discovery of new oil and gas fields is suggested to divide into the following directions: a search for oil and gas fields at shallow depths (short-term prospect), a search for oil and gas fields at mid-depths and a search for oil and gas fields at great depths (the main prospects of increasing oil and gas production). The geological and geophysical data were thoroughly analyzed throughout structural and tectonic units within the Western region of Ukraine with the aim of substantiating the prospects of their oil-and-gas content and introduction of new directions of oil-and-gas exploration. The prospects of oil-and-gas content of the Neogene and the Mesozoic deposits of the exterior of the pre-Carpathian depression and flysch of the interior of the pre-Carpathian depression are provided. The prospects of oil-and-gas content of the Cretaceous and the Paleogene deposits of folded Carpathians are characterized. The promising directions for further oil-and-gas exploration within indicated tectonic elements of Carpathian region are identified; the top priority project sites are suggested. Wildcat drilling and further oil-and-gas exploration are strongly recommended for all identified project sites. The research has identified the most promising exploration project sites. All of them are illustrated with appropriate maps and cross-sections. Thus, the most promising ones at shallow depths (up to 2000 m) are the following ones: South-Slyvkinske, Anhelivka, Hoshiv and Verkhnii Hutyn elevations. At mid-depths there are Pechenizhyn, Kliuchiv, Uhilnia and Boratychi elevations. At depths over 4000 m there are the following ones: Horodyshche structure, Posada, Dubliany, South-Lopushnia, Biskiv, Sloboda-Dolyna and Mizhrichchia elevations, Pidrezhzhia and Dobromyl-Strilbychi structures. The assessment of the resource potential of identified exploration project sites was done.

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