scholarly journals INFLUENCE OF BUSINESS DIGITALIZATION ON THE OIL RECOVERY FACTOR AND IMPROVING THE EFFICIENCY OF THE OIL AND GAS COMPANIES ACTIVITY

2019 ◽  
pp. 73-79 ◽  
Author(s):  
A. D. Balashova ◽  
O. I. Bolshakova

Against the background of the decline structure of hydrocarbon reserves in Russia, the maintenance of a stable level of production and enhanced oil recovery at mature fields is associated with the introduction of technologies of the fourth industrial revolution (Industry 4.0). The real and possible impact of digitalization on the oil recovery factor and impact of the technological solutions on the development hard-to-recover reserves have been сonsidered in the article. Special attention has been paid to the transition to intellectual methods of management, within the framework of digitalization, which ensure the effective management for all company’s processes, provide objective and transparent information for making accurate and operational management decisions. To ensure a significant effect from the digital transformation of the industry, it is necessary to create favorable investment conditions, including government regulation and stimulation.

2021 ◽  
pp. 79-90
Author(s):  
Т. A. Pospelova

The article discusses ways to increase the oil recovery factor in already developed fields, special attention is paid to the methods of enhanced oil recovery. The comparative structure of oil production in Russia in the medium term is given. The experience of oil and gas companies in the application of enhanced oil recovery in the fields is analyzed and the dynamics of the growth in the use of various enhanced oil recovery in Russia is estimated. With an increase in the number of operations in the fields, the requirements for the selection of candidates inevitably increase, therefore, the work focuses on hydrodynamic modeling of physical and chemical modeling, highlights the features and disadvantages of existing simulators. The main dependences for adequate modeling during polymer flooding are given. The calculation with different concentration of polymer solution is presented, which significantly affects the water cut and further reduction of operating costs for the preparation of the produced fluid. The possibility of creating a specialized hydrodynamic simulator for low-volume chemical enhanced oil recovery is considered, since mainly simulators are applicable for chemical waterflooding and the impact is on the formation as a whole.


Author(s):  
L.S. Leontieva ◽  
◽  
E.B. Makarova ◽  

The oil and gas sector of the economy in many states remains the main source of foreign exchange and tax revenues to the budget. Moreover, its share, for example, in Russia, accounts for about 12 % of all industrial production. However, this sector, as the practice of world oil prices shows, is experiencing not only a rise, but also a decline. Consequently, the problem of forming a balanced portfolio of oil and gas assets is an object of close attention on the part of national oil and gas companies. The issues of choosing the optimal combination of oil and gas assets in the portfolio are no less urgent, especially among the tasks that all oil and gas companies face, both in Russia and abroad. An investment portfolio or a portfolio of oil and gas assets, which includes new projects for the commissioning of fields, as well as measures to enhance oil recovery, and exploration are objects of real investment. The high volatility of the oil and gas industry is influenced by various factors, including: macroeconomic, innovation risks and a number of others. These circumstances stimulate the sector to increase the resilience of its project portfolios in order to respond flexibly to changes. In an increasingly challenging and uncertain environment, oil and gas companies around the world face constant pressures as difficult strategic decisions and building long-term plans lead to a sustainable portfolio. In order to achieve their goals and maximize profitability, companies should apply certain algorithms in their practice. The article substantiates the role and importance of project portfolio management in achieving the goals of the state and companies in the oil and gas sector. The main goal of the article is to build an algorithm that is aimed both at determining the stability of the portfolio and the ability to flexibly respond to changes in the environment. The scientific novelty of the research lies in the determination of an algorithm for assessing the sustainability of a portfolio of projects of oil and gas companies. Application of this algorithm will allow oil and gas companies to take into account the influence of external factors. The research methodology is based on such methods as analysis of internal regulations and reporting of companies for project portfolio management, risk analysis, project ranking; grouping and classification method.


2020 ◽  
Vol 19 (10) ◽  
pp. 1916-1944
Author(s):  
O.V. Shimko

Subject. The article reviews the production and proved reserves of the largest public oil and gas companies from 2006 to 2018. Objectives. The purpose is to determine key trends in production and proved reserves indicators and identify the factors, leading to this transformation during the studied period. Methods. The study draws on methods of comparative analysis, as well as the generalization of materials of annual financial statements. Results. The paper establishes a proportional increase in the production of liquid hydrocarbons and natural gas, and determines that most of the total production accounts for liquid hydrocarbons. It reveals that there has been an increase in proved reserves, and that the component of liquid hydrocarbons in the structure has gradually reached almost two thirds. It is found that in terms of pace, the increase in the production of liquid hydrocarbons and natural gas was ahead of the increase in the corresponding proved reserves, as compared to the level of the world's largest public oil and gas corporations, and, therefore, there was a general decrease in the level of reserve life of companies. Conclusions. In conditions of increasing production by leading public oil and gas corporations at available prices for raw materials, it becomes difficult for many independent companies to maintain an acceptable level of availability of proved hydrocarbon reserves.


Nafta-Gaz ◽  
2021 ◽  
Vol 77 (2) ◽  
pp. 75-81
Author(s):  
Mirosław Wojnicki ◽  
◽  
Jerzy Kuśnierczyk ◽  
Sławomir Szuflita ◽  
Marcin Warnecki ◽  
...  

The challenge related to the need for an increase of the recovery factor concerns numerous mature, also domestic oilfields, including the most important ones – located in Main Dolomite formation. Satisfactory recovery factor can be ensured only through applying an effective enhanced oil recovery method (EOR). Water Alternating Gas (WAG), as one of the most effective EOR methods, has been tested in conditions characteristic for domestic deposits in carbonate formations. The results of experimental and simulation works carried out at the Oil and Gas Institute (INiG – PIB) indicate significant potential for the application of the WAG method in domestic conditions. An unquestionable advantage of the WAG method is the opportunity to utilize various types of gases, including flue/waste gas or low-energy natural gas. This issue deserves special attention because, as we know, the reduction in the emissions of gases involved in global warming is critical for the future of our planet. Their utilization in EOR methods, coupled with their safe storage in geological structures, constitute measures that reduce the environmental footprint of produced oil. In the article, based on the of experimental results, a simplified economic analysis of the utilization of four gas types in the form of acidic gases (carbon dioxide and its mixture with hydrogen sulfide) and natural gases (high and very high nitrogen content) in the WAG method was carried out. That allowed to identify the most economically optimal variants of the WAG method. The results showed that despite significantly lower effectiveness of nitrogen-rich natural gases in enhancing oil recovery (in the context of recovery factor), their application might be justified in economic terms. The selection of the optimal variant for enhancing recovery is strongly influenced by the assumed (current) cost of acquiring the injected media, and of course by the current (and forecasted) crude oil price.


Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Yiming Wu ◽  
Kun Yao ◽  
Yan Liu ◽  
Xiangyun Li ◽  
Mimi Wu ◽  
...  

A condensate gas reservoir is an important special oil and gas reservoir between oil reservoir and natural gas reservoir. Gas injection production is the most commonly used development method for this type of gas reservoir, but serious retrograde condensation usually occurs in the later stages of development. To improve the recovery efficiency of condensate oil in the middle and late stages of production of a condensate gas reservoir, a gas injection parameter optimization test study was carried out, taking the Yaha gas condensate reservoir in China as an example. On the premise that the physical experimental model and key parameters met the actual conditions of the formation, the injection method, injection medium, injection-production ratio, and other parameters of the condensate gas reservoir were studied. Research on the injection method showed that the top injection method had a lower gas-oil ratio and higher condensate oil recovery. The study of injection medium showed that the production effect of carbon dioxide (CO2) injection was the best injection medium, and the maximum recovery rate of condensate oil was 95.11%. The injection-production ratio study showed that the injection-production ratio was approximately inversely proportional to the recovery factor of condensate gas and approximately proportional to the recovery factor of condensate oil. When the injection-production ratio was 1 : 1, the maximum recovery rate of condensate oil was 83.31%. In summary, in the later stage of gas injection development of the Yaha condensate gas reservoir, it was recommended to choose the development plan of CO2 injection at the top position with an injection-production ratio of 1 : 1. This research can not only provide guidance for the later formulation of gas injection plans for Yaha condensate gas reservoirs but also lay a foundation for the research of gas injection migration characteristics of other condensate gas reservoirs.


2021 ◽  
Vol 266 ◽  
pp. 09007
Author(s):  
R.A. Perdomo ◽  
N.I. Serdyuk

Many companies are now workingto converge business models and engineering processes with the technologies of the fourth industrial revolution. The automation of industrial processes together with the implementationof infrastructure,makes it possible to interconnect people and performance indicators in real-time, reducing the decision-making time and time in themarketplace. This provides companies with unprecedented opportunities to create and capture value while rethinking business models but brings vulnerabilities and risks that must be properly assessed and mitigated. New malicious third parties are emerging and directly threaten the efforts of companies. The purpose of this article is to enumerate the possible attackers (vectors) and to define the possible areas where they can attack companies (surfaces), illustratingwith the example of drilling operations in the oil and gas industry, in order to provide discussion points about what new competencies technicians need to developto face these emerging threats.


2020 ◽  
Vol 10 ◽  
pp. 67-78
Author(s):  
Tran Vu Tung ◽  
Tran Ngoc Trung ◽  
Ngo Huu Hai ◽  
Nguyen Thanh Tinh

The fourth industrial revolution (Industry 4.0) with the breakthrough of internet and artificial intelligence has had a strong impact, changing all aspects of global socio-economic life. Digital transformation in the spread of Industry 4.0 is no longer a choice but has become an inevitable development trend for businesses to truly stand up to the times. Digital transformation is the transformation of business activities, processes, products, and models to fully leverage the opportunities of digital technologies, characterised by development, growth, innovation, and disruption. In particular, "digital disruption" is the situation when new technology competes with the traditional business way that we now often refer to under the concepts of cloud computing, big data, and internet of things (IoT). This competition will help businesses utilise digitised data and processes to create a new model that is more efficient and convenient. Digital technologies in oil and gas companies can have a significant business impact as it contributes to increasing hydrocarbon recovery, ensuring safety across the business ecosystem, and improving operational reliability. This paper addresses the oil and gas industry’s trends in digital transformation and the initiatives at Bien Dong POC.


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