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Browsing by Author "Ibragimova D."

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Acid compositions for enhanced oil recovery from carbonate reservoir

Ibragimova D.; Ivanova I.; Ivanov D.; Akhmetzanova R. (2019)

© Published under licence by IOP Publishing Ltd. This work is devoted to selection of acidic compositions for use in the process of acid fracturing of carbonate oilfields. The selection is based on the stability of the ...
Aquatermolisys of heavy crude oil in the presence of metal oxide nanoparticles

Petrov S.; Lakhova A.; Ibragimova D.; Bashkirtseva N.; Kayukova G.; Vakhin A. (2016)

The effect of suspended nanoparticles of magnetite and hematite on thermal decomposition of heavy oil at a temperature of 360 ° C in a vapor medium at different pressures in the system was explained. The preferential ...
Aquathermolysis of heavy oil using nano oxides of metals

Lakhova A.; Petrov S.; Ibragimova D.; Kayukova G.; Safiulina A.; Shinkarev A.; Okekwe R. (2017)

© 2017 Elsevier B.V.The effect of suspended nanoparticles of magnetite and hematite on thermal decomposition of heavy oil at a temperature of 360 °C in a vapor medium at different system pressures is revealed. The preferential ...
Choline esterase inhibitors and synthetic oxalic acid receptors based on calix[4]arene derivatives

Stoikov I.; Khrustalev A.; Ibragimova D.; Stoikova E.; Evtyugin G.; Antipin I.; Konovalov A. (2005)

New reversible butyrylcholine esterase inhibitors based on calix[4]arene derivatives were suggested. A series of new distally disubstituted calix[4]arenes were prepared in 60-80% yields. Some of these compounds showed ...
Conversion of organic matter in the carbonaceous medium in the supercritical water

Petrov S.; Ibragimova D.; Safiulina A.; Tohidi Kalorazi B.; Vakhin A.; Okekwe R.; Karalin E. (2017)

© 2017 Elsevier B.V. The work is based on the modeling of geothermal transformations of hydrocarbons in oil-bearing formations of deep horizons of the earth's crust - under abnormally high pressure, in the presence of ...
Conversion of resins and asphaltenes under thermo-catalytic influence of magnetite at 200°C

Khaidarova A.; Zaripova R.; Mukhamatdinova R.; Ibragimova D.; Mukhamatdinov I. (2020)

© 2020 IOP Publishing Ltd. All rights reserved. This paper discusses the influence of magnetite on conversion of Ashal'cha heavy oil under the temperature of 200°C. The role of catalyst in in-situ upgrading of heavy oil ...
Evaluation of the effect of new-synthesized heterocyclic compounds as inhibitors of ARP deposits

Ibragimova D.; Ivanov D.; Sharafieva Z.; Shamsutdinova L.; Milovankin A.; Petrov S. (2020)

© 2020 IOP Publishing Ltd. All rights reserved. This article is devoted to the studying of the problem of the resin and asphaltene deposits formation in the process of oil production and transportation using the example ...
Features of the n-alkanes crystalline phase content in paraffin oil components and their deposits

Ibragimova D.; Safiulina A.; Lakhova A.; Bashkirtseva N.; Petrov S.; Ganeeva Y. (2016)

High-molecular n-alkanes within high paraffin oils of remaining hard-to-recover reseives are studied. Oil paraffin hydrocarbons redistribution between oils and their heavy deposits in the downhole equipment is presented. ...
Geothermal Transformatiom of Organic Matter in Supercritical Water with Magnetite and Coal Particles

Zaidullin I.; Lakhova A.; Ivanova I.; Petrov S.; Ibragimova D.; Bashkirtseva N. (2017)

© 2017, Springer Science+Business Media New York.The mechanisms of conversion of high-viscosity oil in supercritical water in the presence of finely dispersed coal and magnetite are clarified. The experiments were conducted ...
Influence of rock-forming and catalytic additives on transformation of highly viscous heavy oil

Petrov S.; Ibragimova D.; Abdelsalam Y.; Kayukova G. (2016)

© 2016 Pleiades Publishing, Ltd. The influence of the rock-forming additives kaolin and alumina in the presence of nickel compounds on the thermal catalytic conversion of heavy oil at a temperature of 360°C in a reducing ...
Low-Temperature Oxidation of Heavy Oil in Carbonate Medium Using Cobalt (III) Acetylacetonate as Catalyst

Petrov S.; Kayukova G.; Lakhova A.; Zaidullin I.; Ibragimova D.; Bashkirtseva N. (2017)

© 2017, Springer Science+Business Media, LLC, part of Springer Nature. The results of laboratory experiments on modeling of heavy oil oxidation processes in an air-oxygen environment using cobalt (III) acetylacetonate as ...
Modification of asphalt-free super viscous oil using ethylene copolymer with vinyl acetate

Petrov S.; Ibragimova D.; Kayukova G.; Gadelshin R.; Lakhova A.; Bashkirtseva N. (2016)

In this work the composition as well as the physical and mechanical properties of deasphalted bitumen of the Ashalchinsky field compounded by ethylene vinyl-acetate copolymer was studied. The possibility of development of ...
Modification of Petroleum Bitumen by Oxygen-Containing Compounds and Transition Metal Oxides

Zakieva R.; Gussamov I.; Gadel’shin R.; Petrov S.; Ibragimova D.; Baibekova L. (2015)

© 2015 Springer Science+Business Media New York The patterns of change in component and structural-group composition of bituminous binders modified by oxygen-containing compounds and finely dispersed Mn (II) oxide are ...
Molecular transport in thiacalix[4]arene-modified nanoporous colloidal films

Mollard A.; Ibragimova D.; Antipin I.; Konovalov A.; Stoikov I.; Zharov I. (2010)

The surface of nanopores in colloidal films assembled from 200 nm silica spheres was modified with thiacalix[4]arene moieties and transport of two redox-active species, ferrocene dimethanol and iron tris(bipyridyl) ...
New materials based on tubular nanodimensional structures 1. Synthesis, structural studies and determination of interproton distances in solutions of functionalized thiacalix[4]arenes according to NMR spectroscopic data (NOESY)

Stoikov I.; Ibragimova D.; Antipin I.; Konovalov A.; Gadiev T.; Khairutdinov B.; Karataeva F.; Klochkov V. (2004)

New derivatives of p-tert-butylthiacalix[4]arene were synthesized. The conformation of the macrocycles and interproton distances in the synthesized thiacalix[4]arenes in solutions were determined by NMR spectroscopy. ...
Reforming of extra viscous oil in the presence of mineral additives of carbonate rock

Petrov S.; Ibragimova D.; Abdelsalam Y.; Lakhova A.; Bashkirtseva N.; Kayukova G. (2016)

© Copyright 2016.Conversion of superviscous oil in the presence of mineral additives of carbonate rock. In the presence of carbonaceous additive at a temperature of 360 ° C, degree of aromaticity of the transformed oil ...
Regioselective alkylation of the lower rim of p-tert-butylthiacalix[4]arene with n-(p-nitrophenyl)-α-bromoacetamide

Stoikov I.; Ibragimova D.; Shestakova N.; Krivolapov D.; Litvinov I.; Antipin I.; Konovalov A.; Zharov I. (2009)

The preparation of partially substituted thiacalix[4]arenes 2-6 has been accomplished by conducting the reaction of the thiacalixarene 1 with N-(p-nitrophenyl)-α-bromoacetamide in acetone or acetonitrile in the presence ...
Steam – Air Conversion of Heavy Oil in the Presence of Nanosized Metal Oxide Particles

Petrov S.; Kayukova G.; Lakhova A.; Soldatova R.; Ibragimova D. (2016)

© 2016 Springer Science+Business Media New YorkThe effect of suspended nanosized magnetite and hematite particles on the thermal degradation of heavy oil at 360°C in a steamair atmosphere was studied at various pressures. ...
Steam-Air conversion of heavy oil in the presence of nanosized metal oxide particles

Petrov S.; Kayukova G.; Lakhova A.; Soldatova R.; Ibragimova D. (2016)

© 2016 Springer Science+Business Media New York.The effect of suspended nanosized magnetite and hematite particles on the thermal degradation of heavy oil at 360°C in a steamair atmosphere was studied at various pressures. ...
Synthetic receptors based on calix[4]arene functionalized at the lower rim in molecular recognition of dicarboxylic, α-hydroxycarboxylic, and α-amino acids

Stoikov I.; Gafiullina L.; Ibragimova D.; Antipin I.; Konovalov A. (2004)

New calix[4]arenes, di- and tetrasubstituted at the lower rim, with different functional groups were synthesized. They were studied as carriers of a series of dicarboxylic and α-hydroxycarboxylic acids through a liquid ...

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Browsing by Author "Ibragimova D."

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