Intraformation Transformation of Heavy Oil by Mixed Fe(II, III) Oxides

Mukhamatdinov, Irek I.; Vakhin, Аlexey V.; Ситнов, С. А.; Хайдарова, А. Р.; Зарипова, Р. Д.; Garifullina, E. I.; Катнов, В Е; Степин, С Н

doi:10.1007/s10553-018-0962-3

Cited by 23 publications

(3 citation statements)

References 4 publications

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“…The catalysts were synthesized similar to the works of [38,39]. For the laboratory stimulation of the aquathermolysis process, we used a high-pressure reactor (Parr Instruments, Moline, IL, USA) with a stirrer (volume = 300 mL).…”

Section: Objects and Research Methodsmentioning

confidence: 99%

The Composition and Structure of Ultra-Dispersed Mixed Oxide (II, III) Particles and Their Influence on In-Situ Conversion of Heavy Oil

et al. 2020

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This paper discusses the role of magnetite in the conversion of heavy oil from the Ashal’cha reservoir. The effect of catalysts on the in-situ upgrading of heavy oil is directed on the reduction of high-molecular components of oil such as resins and asphaltenes and their molecular masses. Moreover, it is directed on the significant increase in saturates and aromatic fractions. Measuring the temperature-dependent viscosity characteristics revealed the tremendous viscosity decrease of the obtained catalytic aquathermolysis products. X-ray analysis exposed the composition of the initial catalyst that consisted of mixed iron oxides (II, III), as well as catalysts that were extracted from the treated crude oil. The particle size of the catalysts was investigated by scanning electron microscopy. According to the SEM data, aggregates of 200 nm were formed that were in the range of ultra-dispersed particles (200 to 500 nm).

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Section: Objects and Research Methodsmentioning

confidence: 99%

The Composition and Structure of Ultra-Dispersed Mixed Oxide (II, III) Particles and Their Influence on In-Situ Conversion of Heavy Oil

et al. 2020

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“…These EOR methods encompass thermal, gas-based, chemical, and hydrodynamic approaches, along with their amalgamation. Thermal techniques have gained widespread adoption, delineated by steam-based reservoir stimulation, , in situ combustion, , cyclic steam stimulation, − and steam-assisted gravity drainage − potentially achieving an oil recovery factor of around 70%.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Thermal Steam Treatment Duration with Metallic Sodium Nanoparticles on Heavy Oil Upgrading

Trubitsina,

Katnov,

Kayumov

et al. 2024

Energy Fuels

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The escalating share of hard-to-extract, highly viscous oil poses tangible challenges in the realm of oil extraction. Employing thermal steam treatment (TST) technology presents a promising approach, not only for viscosity reduction but also for comprehensive upgrading of extracted hydrocarbons within the reservoir itself. This study meticulously explores the impact of the TST duration, in tandem with organodispersed metallic sodium, on the upgrading of heavy oil sourced from the Ashalcha field. Through meticulous analysis utilizing gas chromatography, SARA analysis, IR spectroscopy, and GC-MS of individual fractions, the optimal duration for enhancing oil composition was pinpointed: 72 h at a temperature of 250 °C during TST. Remarkably, the utilization of sodium nanoparticles neutralizes hydrogen sulfide and carbon dioxide while concurrently catalyzing the degradation and reduction of asphaltenes, notorious for their adverse impact on oil rheology. Noteworthy findings include a discernible upsurge in low-molecular-weight hydrocarbons within the C1−C4 range, ascertained via gas chromatography. Additionally, analysis of saturated hydrocarbon composition using GC-MS highlighted a decline in compounds characterized by longer hydrocarbon chains. IR spectroscopy unveiled alterations in the asphaltene fraction, exhibiting reduced aromaticity attributable to the unfolding of cyclic structures and the elongation of hydrocarbon chains consequent to TST in the presence of a metallic sodium-based suspension.

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“…Therefore, reducing the viscosity of oil is of great significance. Consequently, one option for processing and upgrading such oil is the application of catalytic compositions directly in the porous medium of high-viscosity oil reservoir rocks under hydrothermal conditions. − …”

Section: Introductionmentioning

confidence: 99%

Development of a Nanodispersed Catalyst Based on Iron and Nickel for In Situ Upgrading Ashal′cha Heavy Oil

Mukhamatdinov,

Mahmoud,

Affane

et al. 2023

Energy Fuels

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In this study, we conducted physical modeling to investigate the effectiveness of nanodispersed catalysts, specifically pure magnetite and magnetite with nickel oxide, for in situ upgrading of high-viscosity Ashal′cha heavy oil through thermal steam treatment (TST). The reactions were carried out at 250 °C for different treatment durations (24, 48, and 72 h). The aquathermolysis reactions with Fe 3 O 4 + NiO catalyst exhibited remarkable results, achieving an optimum viscosity reduction of 2000 mPa•s through thermal cracking, which converted heavy highmolecular-weight compounds into lighter compounds. Furthermore, the presence of the catalyst contributed to increased levels of light-saturated compounds and aromatic compounds, while significantly decreasing asphaltenes and resins. Hydrogen donors were introduced to prevent hydrocarbon polymerization. Gas chromatography-mass spectrometry (GC-MS) analysis indicated that increasing the treatment duration did not adversely affect the reaction compared to the absence of the catalyst. Notably, the magnetite catalyst demonstrated high efficiency due to its availability, cost-effectiveness, and small nanosize, facilitating penetration into reservoir rock pores when injected into the reservoir medium. These findings underscore the potential of nanodispersed catalysts for in situ heavy oil upgrading, offering viscosity reduction and the conversion of heavy compounds into valuable light compounds.

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Intraformation Transformation of Heavy Oil by Mixed Fe(II, III) Oxides

Cited by 23 publications

References 4 publications

The Composition and Structure of Ultra-Dispersed Mixed Oxide (II, III) Particles and Their Influence on In-Situ Conversion of Heavy Oil

The Composition and Structure of Ultra-Dispersed Mixed Oxide (II, III) Particles and Their Influence on In-Situ Conversion of Heavy Oil

The Effect of Thermal Steam Treatment Duration with Metallic Sodium Nanoparticles on Heavy Oil Upgrading

Development of a Nanodispersed Catalyst Based on Iron and Nickel for In Situ Upgrading Ashal′cha Heavy Oil

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