scholarly journals Wettability change of reservoir rocks during the adsorption of asphaltenes on the interstitial surface

2021 ◽  
pp. 3-15
Author(s):  
N.N. Mikhailov ◽  
O.M. Ermilov ◽  
L.S. Sechina
Keyword(s):  
Oil And Gas ◽  
Gas Condensate ◽  
Carbonate Reservoirs ◽  
Internal Space ◽  
Reservoir Rocks ◽  
Polar Components

The influence of adsorbed polar components on the change in the wettability of terrigenous and carbonate reservoirs of oil and gas condensate fields was studied. The regularities of hydrophobization of the internal space of the reservoir in two cases are established: the effect of only the asphaltene component and the effect of the asphaltene component together with the oil-resinous components. The role of associations of polar components in the change of wettability is shown.

Modern methods for studying the heterogeneous structure of complex carbonate reservoirs and erosion protrusions of the foundation

2020 ◽  
pp. 88-94
Author(s):  
N. M. Kutukova ◽  
V. L. Shuster
Keyword(s):  
Western Siberia ◽  
Oil And Gas ◽  
Carbonate Reservoirs ◽  
Heterogeneous Structure ◽  
Geological Model ◽  
Eastern Siberia ◽  
Reservoir Rocks ◽  
Basement Rocks ◽  
Modern Methods ◽  
The Creation

The paper shows the application of modern methods for studying the structure of combined oil-traps. Methods for determining the conceptual geological model of reservoir rocks are described. The examples of the complex-constructed deposits of the Yurubcheno-Tokhomskoye oilfield (Eastern Siberia) and the deposits in the basement rocks in the fields of Western Siberia and Vietnam are considered in the paper. The creation of a conceptual geological model is also necessary for the successful localization of oil and gas deposits and the identification of promising zones in complex non-traditional traps.

Poroperm properties of reservoir rocks at Kachalivske oil and gas condensate field

2018 ◽  
pp. 18-24
Author(s):  
V. V. Fedoriv ◽  
Ya. M. Ftemov ◽  
I. O. Piatkovska ◽  
A. O. Trubenko
Keyword(s):  
Oil And Gas ◽  
Statistical Processing ◽  
Gas Condensate ◽  
Reservoir Rock ◽  
Geophysical Research ◽  
Reliable Determination ◽  
Reservoir Rocks ◽  
Experimental Laboratory ◽  
Rock Parameters

The results of laboratory, geological and geophysical research methods in Visean and Tournaisian reservoir rocks with complex type deposits of Kachalivske oil and gas condensate feild were analysed. The connection of structural and lithological characteristics with geophysical parameters was substantiated. In some cases, in the Visean and Tournaisian deposits, the multicomponent composition of the rock matrix affects the actual value of geophysical parameter, leading to erroneous conclusions about the reservoir, the nature of the saturation and depth of occurrence. As a result of the statistical processing of experimental laboratory studies and geophysical studies of wells in the Visean and Tournaisian deposits at Kachalivske oil and gas condensate feild, petrophysical models of reservoir rocks were developed allowing reliable determination of poroperm properties of such reservoir rocks. The developed models can be used both for determination the reservoir rock parameters and for quick interpretation of geophysical research results.

Application of multi-stage hydraulic fracturing in the development of Achimov sediments at the Urengoy oil and gas condensate field

2020 ◽  
pp. 38-48
Author(s):  
E. V. Panikarovskii ◽  
V. V. Panikarovskii ◽  
M. M. Mansurova ◽  
M. V. Listak
Keyword(s):  
Hydraulic Fracturing ◽  
Oil And Gas ◽  
Gas Condensate ◽  
Hydraulic Fractures ◽  
High Permeability ◽  
Main Method ◽  
Reservoir Rocks ◽  
New Methods ◽  
Multi Stage ◽  
Oil Gas

The development of deep-lying Achimov deposits makes it possible to extract additional volumes of gas and gas condensate in the fields with decreasing production, as well as implement strategies to introduce new methods to increase oil, gas and condensate production. The decrease in well productivity during the development of gas condensate fields requires the use of new methods of intensification of production. The main method for increasing the productivity of Achimov wells is hydraulic fracturing. The choice of hydraulic fracturing technology for low-permeability Achimov deposits is especially important for creating large hydraulic fractures and high permeability, as well as maintaining the filtration characteristics of reservoir rocks. Multi-stage hydraulic fracturing is the most effective method of intensifying gas and gas condensate production in the development of the Achimov deposits.

The Role of Migration in the Formation of Regional Labour Markets Amidst the Second Wave of Depopulation in Modern Russia

2020 ◽  
Vol 27 (6) ◽  
pp. 26-36
Author(s):  
A. V. Topilin ◽  
A. S. Maksimova
Keyword(s):  
Labour Market ◽  
Oil And Gas ◽  
Labour Markets ◽  
Labour Migration ◽  
Sample Surveys ◽  
Balance Sheets ◽  
Permanent Migration ◽  
Regional Labour Markets ◽  
The Impact

The article reflects the results of a study of the impact of migration on regional labour markets amidst a decline in the working-age population in Russia. After substantiating the relevance of the issues under consideration, the authors propose a methodological analysis toolkit, the author’s own methodology for calculating the coefficients of permanent long-term external and internal labour migration in regional labour markets, and the coefficient of total migration burden. In addition, the authors provide an overview of the information and statistical base of the study. According to current migration records, data of Rosstat sample surveys on Russian labour migrants leaving for employment in other regions, regional labour resources balance sheets based on the calculated coefficients of labour market pressures, the authors analyzed the impact of migration on the Russian regional labour markets over the past decade. It revealed an increasing role of internal labour migration in many regions, primarily in the largest economic agglomerations and oil and gas territories. At the same time, the role of external labour migration remains stable and minimum indicators of the contribution of permanent migration to the formation of regional labour markets continue to decrease. It has been established that irrational counter flows of external and internal labour migration have developed, which indicates not only an imbalance in labour demand and supply but also a discrepancy between the qualitative composition of migrants and the needs of the economy. It is concluded that the state does not effectively regulate certain types of migration, considering its impact on the labour market. The authors justified the need for conducting regular household sample surveys according to specific programs to collect information about labour migrants and the conditions for using their labour. In addition to the current migration records, using interregional analysis, this information allows making more informed decisions at the federal and regional levels to correct the negative situation that has developed in the regional labour markets even before the coronavirus pandemic had struck.

The Role of Oil and Gas in the Economic Development of the Global Economy

2018 ◽  
Author(s):  
Paul Stevens
Keyword(s):  
Economic Development ◽  
Global Economy ◽  
Oil And Gas ◽  
Primary Energy ◽  
Oil And Gas Producers ◽  
The Future ◽  
History Of ◽  
Factor Inputs ◽  
The Impact

This chapter is concerned with the role of oil and gas in the economic development of the global economy. It focuses on the context in which established and newer oil and gas producers in developing countries must frame their policies to optimize the benefits of such resources. It outlines a history of the issue over the last twenty-five years. It considers oil and gas as factor inputs, their role in global trade, the role of oil prices in the macroeconomy and the impact of the geopolitics of oil and gas. It then considers various conventional views of the future of oil and gas in the primary energy mix. Finally, it challenges the drivers behind these conventional views of the future with an emphasis on why they may prove to be different from what is expected and how this may change the context in which producers must frame their policy responses.

Financing Energy Access in Africa

2018 ◽  
Author(s):  
Peter Kayode Oniemola ◽  
Jane Ezirigwe
Keyword(s):  
Oil And Gas ◽  
Sub Saharan Africa ◽  
Capital Investments ◽  
Energy Access ◽  
African Countries ◽  
Sustainable Technologies ◽  
Energy Technologies ◽  
Sub Saharan ◽  
Diesel Motors

To achieve universal energy access will attract huge capital investments. If sub-Saharan Africa is to realize anything close to the ambitious goals set for its energy access, then new actors, innovative funding mechanisms and sustainable technologies will have to be attracted. Finance is needed for activities such as rural electrification, clean cooking facilities, diesel motors and generators, other renewable energy technologies, oil and gas infrastructures, etc. Finance is also needed in research and development of suitable technologies and funding options as well as investment in the capacity to formulate and implement sound energy policies. This chapter examines the varied financing options for energy access in sub-Saharan Africa. It argues that with appropriate laws in place and effective mechanism for implementation, African countries can significantly engage private sector financing, international financial institutions and foreign donors. The role of the law here will be in creating an enabling environment for financing.

Sign in / Sign up

Export Citation Format

Share Document