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Now showing items 27481-27500 of 76175

Features of heavy oil spraying with single evaporation

Petrov S.; Nosova A.; Bashkirtseva N.; Fakhrutdinov R. (2019)

© Published under licence by IOP Publishing Ltd. Development of resources of heavy hydrocarbons is possible due to the evolution of technologies of their processing, including through the intensification of technological ...
Temperature influence on the composition of high-carbonic Domanic rocks organic matter during hydrothermal treatment in CO<inf>2</inf> atmosphere

Kayukova G.; Mikhailova A.; Nasurova Z.; Sotnikov O.; Nazimov E. (2019)

© Published under licence by IOP Publishing Ltd. Depositions of the Domanic type in the territory of Tatarstan are stratigraphically associated with carbonate-siliceous deposits of the Upper Devonian part of the section. ...
Overhauser-driven dynamic nuclear polarization for petroleum systems: Literature survey and comparing with experiments

Alexandrov A.; Gafurov M. (2019)

© Published under licence by IOP Publishing Ltd. Overhauser dynamic nuclear polarization (ODNP) in solutions of various paramagnetic complexes has been studied for 60 years, but only in recent years has found applications ...
An estimation of Ufimian terrigenous reservoir lithology influence on oil recovery factor by steam stimulation basing on tube experiments

Rojas A.; Idrisov I.; Sudakov V.; Nurgaliev D.; Grachev A. (2019)

© Published under licence by IOP Publishing Ltd. The settings, scale and geometry of lab facilities to simulate enhanced recovery methods play a significant role in the approximation of underground conditions of oil fields. ...
Multifrequency (9 and 95 GHz) EPR study of stable radicals in asphaltenes fractions of oils and bitumen

Gafurov M.; Mamin G.; Ganeeva Y.; Yusupova T.; Volodin M.; Gracheva I.; Orlinskii S. (2019)

© Published under licence by IOP Publishing Ltd. Structural characterization of asphaltenes in complex systems such as native hydrocarbons is in the focus of scientific and industrial interests since many years. Various ...
Comparison of upgrading of heavy oil and vacuum distillation residues by supercritical water

Djimasbe R.; Al-Muntaser A.; Suwaid M.; Varfolomeev M. (2019)

© Published under licence by IOP Publishing Ltd. The purpose of this work is to test the upgrading technology by supercritical water of two different raw materials heavy oil and vacuum distillation residue. The experiments ...
The study of the selectivity of the catalyst based on Pt-Re/γ-Al<inf>2</inf>O<inf>3</inf> in the cracking reactions of n-hexane

Petrov S.; Valieva A. (2019)

© Published under licence by IOP Publishing Ltd. The actual task in the fuel and energy sector is the conversation of alkanes, which are a part of the light hydrocarbon fractions of petroleum, into the top requested chemical ...
Analysis of the results of tracer tests for the monitoring of the development of super-viscous oil deposit

Shipaeva M.; Sudakov V.; Akhmadullin R. (2019)

© Published under licence by IOP Publishing Ltd. The article describes the results of implementation tracer studies at one of the super-viscous oil deposits in the Republic of Tatarstan. Accurate information on the flow ...
Numerical study of polymerization processes on various catalytic systems

Grigoryev I.; Mustafina S.; Medvedeva O.; Larin O. (2019)

© Published under licence by IOP Publishing Ltd. A set of algorithms for determining the averaged molecular characteristics of the polymer and finding the optimal initial concentrations was built on the basis of the ...
Catalytic Conversion of Tatarstan Heavy Oil using Copper Based Catalysts at 250°C

Suwaid M.; Varfolomeev M.; Almuntaser A.; Djimasbe R.; Khramov S.; Al-Rubaye A.; Khaziakhmetov L. (2019)

© Published under licence by IOP Publishing Ltd. In this work, the in-situ upgrading of heavy oil from Tatarstan oilfield using steam and copper stearate as a catalyst at 250°C and 35 bar for 24 hours was studied in ...
Effect of pressure, temperature and gas phase composition on the rheological properties of heavy crude oil

Akhmadiyarov A.; Petrov A.; Rakipov I.; Varfolomeev M. (2019)

© Published under licence by IOP Publishing Ltd. Influence of pressure, temperature and the nature of gas on the viscosity of heavy crude oil from the Tatarstan field was studied using rheology method (rheometer MCR 302). ...
Prospect of heat-treat of the reservoir for the active mechanism of oil recovery, due to the study of the geochemical composition of terrigenous rocks of the section of Karkali, South-East of Tatarstan

Fakhrutdinov E.; Nurgalieva N.; Mudarisova R. (2019)

© Published under licence by IOP Publishing Ltd. The present paper shows the thermal features of the treatment on the reservoir, geochemistry of sediments, and intensity of chemical weathering of terrigenous rocks of the ...
Natural heavy oil reservoirs porosity and saturation coefficients estimation based on wavelet analysis of X-Ray computed tomography histogram

Kadyrov R.; Starovoytov A.; Utemov E.; Statsenko E.; Sagirov R.; Validov M. (2019)

© Published under licence by IOP Publishing Ltd. With the development of unconventional resources the standard task of evaluation the porosity and oil saturation needs new approach. Heavy oil and bitumen can act as cement ...
Building a model of the isoprene polymerization process in the presence of microheterogeneous neodimiumcatalytic systems

Miftakhov E.; Mustafina S.; Medvedeva O.; Zhavoronkov D. (2019)

© Published under licence by IOP Publishing Ltd. In the research is built the mathematical model of the isoprene polymerization process in the presence of microheterogeneous neodimium catalytic systems. The direct problem ...
Paleotemperature research of coals in the Volga-Ural oil and gas province (Russian Federation) in connection with forecasting of non-traditional hydrocarbon sources

Khasanov R.; Gafurov S.; Rakhimzyanov A.; Mullakaev A. (2019)

© Published under licence by IOP Publishing Ltd. Using of thermal methods of influence on the formation allows engaging in the extraction unconventional sources of hydrocarbons. One of the most important unconventional oil ...
Regulating temperature of oil saturation with paraffins to avoid asphaltene, resin and paraffin substances deposition during oil production

Valiev D.; Kemalov R.; Kemalov A. (2019)

© Published under licence by IOP Publishing Ltd. In order to regulate temperature of oil saturation with paraffins to avoid asphaltene, resin and paraffin substances (ARP-S) deposition using thermal method as well as ...
Stages of thermal transformation of oil shales organic-mineral substance of the Middle Volga region during combustion

Korolev E.; Eskin A.; Korolev A.; Barieva E. (2019)

© Published under licence by IOP Publishing Ltd. The study of the staging of the thermal conversion of oil shale, common in the Middle Volga region, was carried out. It is established that the organic matter of rocks due ...
Thermal Conversion of Heavy Crude Oil in the Presence of Formic Acid as a Hydrogen-donor Solvent

Almuntaser A.; Varfolomeev M.; Suwaid M.; Djimasbe R.; Garayeva D.; Ulbaev A. (2019)

© Published under licence by IOP Publishing Ltd. In this study, thermal conversion experiments of heavy oil using steam and formic acid as a hydrogen donor were carried out in a batch reactor at T = 380°C and P = 165 bar. ...
Comparison of reaction media of Aquathermolysis: Water in different physical states

Soldatova R.; Petrov S.; Bashkirceva N.; Lakhova A.; Vasilev E. (2019)

© Published under licence by IOP Publishing Ltd. The experimental results and the character of the heavy oil transformation in a vapor-air medium, at temperatures and pressures providing the water availability in superheated ...
A comparative study of heavy oil oxidation thermal behavior in the presence of Cu-Mn tallates

Khelkhal M.; Eskin A.; Vakhin A. (2019)

© Published under licence by IOP Publishing Ltd. Heavy oil in-situ combustion process has many benefits among other thermal enhancing oil recovery methods. However, its application is still a complex task due to the irregular ...

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