scholarly journals Automation of workover candidate ranking processes at Krasnoleninskoye oil and gas condensate field

2021 ◽  
Vol 6 (4) ◽  
pp. 116-122
Author(s):  
Tatyana I. Sinitsyna ◽  
Andrey N. Gorbunov
Keyword(s):  
Oil And Gas ◽  
Energy State ◽  
Methodological Approach ◽  
Gas Condensate ◽  
Microsoft Excel ◽  
System A ◽  
Visual Basic For Applications ◽  
Graphical Tool ◽  
Analysis Of Results

Background. Workovers (WO) are the main EOR tool at Krasnoleninskoye reservoirs. Therefore, the issue of increasing the reliability of technological and economic performance when planning various types of workovers is urgent. This is due to the complexity of selecting well candidates, the lack of a comprehensive methodology for assessing the short-term and long-term potential of wells, large WO scopes, as well as declining WO performance associated with the reduction of reserves, deterioration of the energy state of the reservoirs, and advancement of the injected water front. The purpose of the study is to create mathematical tools that will reduce the time of well-candidates selection for various types of workovers and to improve the WO quality for entire field. The paper describes methods of automated selection of well candidates that were successfully applied in the conditions of the field of interest, namely graphical and mathematical tools. The mathematical one has been created based on the correlation-regression analysis of the actual implementation of stimulation methods in various geological-field conditions in Microsoft Excel 2010 with Visual Basic for Applications (VBA). The graphical tool has been generated on the basis of all historical field data verified and processed using methods of primary statistical analysis in RN-KIN software. The study resulted in a technique that was selected and tested in the conditions of Krasnoleninskoye oil and gas condensate field. The process of introducing the developed approaches to the search for well candidates for various types of workovers in the field was accompanied by updating, analysis of results, and cyclic training of the system. A methodological approach has been developed, including the combination of several methods for selecting well candidates for various types of workovers. A combination of statistical and graphical methods made it possible to significantly improve the reliability of WO candidates selection and therefore to reduce the share of uneconomic workovers by 12 % in the period from 2017 to 2020. As part of the study, a script has been developed that automatically computes the rank of a well-candidate which significantly reduces time costs and allows to quickly evaluate the “best” workover candidates.

scholarly journals Approaches to Assessing the Strategic Sustainability of High-Risk Offshore Oil and Gas Projects

2020 ◽  
Vol 8 (12) ◽  
pp. 995
Author(s):  
Alexey Cherepovitsyn ◽  
Anna Tsvetkova ◽  
Nadejda Komendantova
Keyword(s):  
Oil And Gas ◽  
Sustainability Assessment ◽  
Methodological Approach ◽  
The Arctic ◽  
Project Management System ◽  
The Face ◽  
Hierarchy Analysis ◽  
Offshore Oil And Gas ◽  
Offshore Oil

In the face of today’s global challenges, oil and gas companies must define long-term priorities and opportunities in implementing complex Arctic offshore projects, taking into account environmental, economic, technological and social aspects. In this regard, ensuring strategic sustainability is the basis for long-term development. The aim of the study is to analyze existing approaches to the concept of “strategic sustainability” of an offshore Arctic oil and gas project and to develop a methodological approach to assessing the strategic sustainability of offshore oil and gas projects. In the theoretical part of the study, the approaches to defining strategic sustainability were reviewed, and their classification was completed, and the most appropriate definition of strategic sustainability for an offshore oil and gas project was chosen. The method of hierarchy analysis was used for strategic sustainability assessment. Specific criteria have been proposed to reflect the technical, geological, investment, social and environmental characteristics important to the offshore oil and gas project. The strategic sustainability of 5 offshore oil and gas projects was analyzed using an expert survey as part of the hierarchy analysis method. Recommendations were made on the development of an offshore project management system to facilitate the emergence of new criteria and improve the quality of the strategic sustainability assessment of offshore projects in the Arctic.

scholarly journals Dynamics of hydrocarbon production in long-developed fields of the South Caspian basin with emphasis on reserves renewability

2021 ◽  
Vol 11 (3) ◽  
pp. 1081-1091
Author(s):  
A. A. Feyzullayev ◽  
I. Lerche ◽  
I. M. Mamedova ◽  
A. G. Gojayev
Keyword(s):  
Oil And Gas ◽  
Methodological Approach ◽  
Gas Production ◽  
Oil Field ◽  
Gas Condensate ◽  
Caspian Basin ◽  
The South ◽  
South Caspian Basin ◽  
Hydrocarbon Production ◽  
Field Development

AbstractThe scientific basis of the paper is the concept of renewability of oil and gas resources. In accordance with this concept, the purpose of this paper is to estimate the volumetric rate of natural replenishment of the reservoir with oil and gas using the example of long-developed Bibieybat oil and Garadag gas condensate fields in the South Caspian Basin (SCB). The methodological approach of this assessment is based on the authors' assumption that at the late stage of field development, the recoverable amount of hydrocarbon fluids is compensated by the amount of their natural inflow, as a result of which oil or gas production stabilizes. The analysis of the dynamics of hydrocarbon production for the Bibieybat oil field covered the period from 1935 to 2018, and for the Garadag gas condensate field from 1955 to 1979. The rate of natural oil replenishment calculated for 29 operating facilities of the Bibieybat field varies per well within 0.32–1.4 ton/day (averaging 0.76 ton/day) or about 277 ton/year. The rate of natural gas inflow at the Garadag gas condensate field is about 5.2 thousand m3/day per well.

scholarly journals Analysis of Dynamical Heat Conductivity of the Reservoir and Fluid Evacuation Zone on the Gas Condensate Well Flow Rate

J ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 124-137
Author(s):  
Kouadio Fabrice Anzian ◽  
Mykhailo Illich Fyk ◽  
Al-Sultan Mohammed Bassam ◽  
Mohammed Khaleel Abbood ◽  
Haval Mohammed Abdullatif ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Oil And Gas ◽  
Methodological Approach ◽  
Field Evaluation ◽  
Gas Condensate ◽  
Bias Estimation ◽  
Gas Field ◽  
Field Development ◽  
Oil And Gas Field ◽  
Practice Methods

This study shows that the thermal conductivity of the rock borehole adjacent to the wells varies depending on the operation of the well. This is due to the fact that the actual temperature and temperature difference affect the humidity and other thermal properties of the rocks, which in turn affect the heat transfer coefficient across the section between the moving gas and the rocks. The static temperature field of primitive geothermal gradients acquires changes in a dynamic form. Theoretical consideration of changes in the thermal conductivity of rocks near the face and the wells is proposed to improve the prediction of gas condensate wells production. The result is achieved by introducing the specified equations of the thermal energy balance in the radial filtration and lifting of well products, which contain the coefficients of heat exchange and throttling. The refinement bias estimation of the 10%–15% level of gas condensate well extraction is shown using proposed methodological approach to relatively well-known (traditional in the field development practice) methods for estimating the extraction of a “medium well” from a particular oil and gas field evaluation. The results of this work demonstrate important scientific, applied, educational and methodological significance of using the methodology presented by the authors.

scholarly journals What’s Conventional and what’s Special in a Reservoir Study for Underground Gas Storage

2018 ◽  
Author(s):  
Francesca Verga
Keyword(s):  
Oil And Gas ◽  
Methodological Approach ◽  
Gas Storage ◽  
Reservoir Engineering ◽  
Underground Gas Storage ◽  
Gas Reservoirs ◽  
Gas Reservoir ◽  
Oil And Gas Reservoirs ◽  
Oil And Gas Reservoir

The development of an underground gas storage (UGS) project and its subsequent management must ensure technical feasibility, commercial value and long-term efficiency. The UGS industry has borrowed much of its knowledge from other disciplines (primarily oil and gas reservoir engineering), but it has also developed its own technology. This paper provides a methodological approach based on current practices and available methods for designing and safely operating a UGS (including the so-called “delta-pressure” option to enhance UGS performance) and highlights what is special in UGS compared to oil and gas reservoirs.

The Belt and Road Initiative: Goals and Challenges

2020 ◽  
pp. 167
Author(s):  
Adnan Khalaf i Hammed Al-Badrani ◽  
Hind Ziyad Nafeih
Keyword(s):  
Development Strategy ◽  
Soft Power ◽  
Oil And Gas ◽  
Power Lines ◽  
Belt And Road Initiative ◽  
Belt And Road ◽  
Ancient Silk Road ◽  
Main Engine ◽  
The Belt And Road

The Belt and Road Initiative is an initiative to revive the ancient Silk Road, through networks of land and sea roads, oil and gas pipelines, electric power lines, the Internet and airports, to create a model of regional and international cooperation.       It is essentially a long-term development strategy, launched by the Chinese president in 2013 to become the main engine of Chinese domestic policy and foreign diplomacy and within the framework of the soft power strategy, to enhance its position and influence in the world as a peaceful and responsible country.   The study includes identifying the initiative and setting goals for China, as well as the challenges and difficulties that hinder the initiative.

Threatening Conditions and Challenges in the Modern Living of the Old People in Republic of Macedonia

2016 ◽  
Vol 2 (2) ◽  
pp. 110
Author(s):  
Hava Rexhep
Keyword(s):  
Kidney Diseases ◽  
Methodological Approach ◽  
Research Problem ◽  
Functional Dependency ◽  
Old People ◽  
Stomach Diseases ◽  
Social Challenge ◽  
The Social ◽  
Build System

The aging is not only a personal but also a social challenge from several aspects, several dimensions; a challenge aiming to build system approaches and solutions with a long term importance. Aims: the main aim of this research is to investigate the conditions and challenges in the modern living of the old people, primarily in terms of the social care. However, this research is concentrated on a big group of the population and their challenges are the most intensive in the modern living. The investigation of the conditions and challenges in the aging are basis and encouragement in realizing the progressive approaches in order to improve the modern living of the old people. The practical aim of the research is a deep investigation and finding important data, analyzing the basic indicators of the conditions, needs and challenges in order to facilitate the old population to get ready for the new life. Methods and techniques: Taking into consideration the complexity of the research problem, the basic methodological approach is performed dominantly by descriptive-analytical method. The basic instrument for getting data in the research is the questionnaire with leading interview for the old people. Results: The research showed that the old people over 70-79 years old in a bigger percentage manifested difficulties primarily related to the functional dependency, respectively 39,33 % of the participants in this category showed concern about some specific functional dependency from the offered categories. The percentage of the stomach diseases with 38,33 % is important, as well as the kidney diseases with 32,83% related to the total population and the category of the old people over 80. Conclusion: The old people very often accept the life as it is, often finding things fulfilled with tolerance and satisfaction. However the health problems of the old people are characterized with a dominant representation. The chronic diseases and the diseases characteristic for the aging are challenge in organizing adequate protection which addresses to taking appropriate regulations, programs and activities.

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