Geochemical modeling with the use of vertical and horizontal relative concentrations of oil compounds for the heavy oil fields

Chemodanov, A. E.; Akhmadullin, R. R.; Sudakov, Vladislav; Usmanov, Sergey; Khayrtdinov, Rinat

doi:10.1080/10916466.2018.1463251

Cited by 12 publications

(3 citation statements)

References 4 publications

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“…The components of samples were identified using the NIST electronic library of mass spectra together with literature data. The procedure of the measurement is described in detail by Chemodanov et al [25].…”

Section: Ftir Gc and Gc-ms Measurementsmentioning

confidence: 99%

Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions

Al‐Muntaser

Varfolomeev

Suwaid

et al. 2020

Journal of Petroleum Science and Engineering

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Section: Ftir Gc and Gc-ms Measurementsmentioning

confidence: 99%

Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions

Al‐Muntaser

Varfolomeev

Suwaid

et al. 2020

Journal of Petroleum Science and Engineering

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“…Decomposition of kerogen is reflected in the results of the group composition of bitumen extracted from rock samples by organic solvents [23] after experiments at different temperatures (Table 2). The initial bitumen contains 29.0% of asphaltenes, 37.0% of resins, 14.8% of saturated, and 19.2% of aromatic hydrocarbons.…”

Section: Composition Of Bitumens Before and After Autoclave Experimentsmentioning

confidence: 99%

Sub- and supercritical water in the processes of conversion of Domanik rock organic matter

et al. 2021

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Studies on the conversion of organic matter of high-carbon Domanik (siliceous-clay carbonate) rock of the Romashkinskoye deposit with a mineral content Corg of 7.07% in sub- and supercritical water have been carried out. It was shown that subcritical water at a temperature of 320°С and 17.0 MPa leads to a partial decomposition of the kerogenic structure, increasing the yield of bitumen from 3.12 to 3.98%, and a more complete recovery of asphaltenes and heavy C22-C30 n-alkanes from the rock sample. Supercritical water at temperatures of 374 and 420°C and pressures above 24.4 MPa leads to intensive formation of hydrocarbon and inorganic gases in the processes of kerogen decomposition, destruction of aliphatic substituents from condensed heteroatomic structures of resins and asphaltenes, and the carbonate component of Domanik rock. Degradation of the organic matter of the Domanik rock is also accompanied by the formation of saturated hydrocarbons with an increased content of light C12-C21 n-alkanes, and carbonaceous substances, such as carbene-carboids. Changes in the structure of asphaltenes and their paramagnetic properties were determined by the EPR method. The influence of sub- and supercritical water on phase changes in the composition of rock minerals, as well as on the yield and composition of formed gases, was revealed.

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“…The authors proposed the catalytic role of metal ions in the aquathermolysis process. Since then, substantial advances in catalysis have made the catalytic aquathermolysis a distinct process, and catalytic steam-based heavy oil recovery techniques has been investigated as a promising technology to recover heavy oil resources [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. More importantly, this process occurs in the cheapest high-pressure reactor of all, petroleum formations [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

et al. 2021

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The aquathermolysis process is widely considered to be one of the most promising approaches of in-situ upgrading of heavy oil. It is well known that introduction of metal ions speeds up the aquathermolysis reactions. There are several types of catalysts such as dispersed (heterogeneous), water-soluble and oil soluble catalysts, among which oil-soluble catalysts are attracting considerable interest in terms of efficiency and industrial scale implementation. However, the rock minerals of reservoir rocks behave like catalysts; their influence is small in contrast to the introduced metal ions. It is believed that catalytic aquathermolysis process initiates with the destruction of C-S bonds, which are very heat-sensitive and behave like a trigger for the following reactions such as ring opening, hydrogenation, reforming, water–gas shift and desulfurization reactions. Hence, the asphaltenes are hydrocracked and the viscosity of heavy oil is reduced significantly. Application of different hydrogen donors in combination with catalysts (catalytic complexes) provides a synergetic effect on viscosity reduction. The use of catalytic complexes in pilot and field tests showed the heavy oil viscosity reduction, increase in the content of light hydrocarbons and decrease in heavy fractions, as well as sulfur content. Hence, the catalytic aquathermolysis process as a distinct process can be applied as a successful method to enhance oil recovery. The objective of this study is to review all previously published lab scale and pilot experimental data, various reaction schemes and field observations on the in-situ catalytic aquathermolysis process.

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Geochemical modeling with the use of vertical and horizontal relative concentrations of oil compounds for the heavy oil fields

Cited by 12 publications

References 4 publications

Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions

Hydrothermal upgrading of heavy oil in the presence of water at sub-critical, near-critical and supercritical conditions

Sub- and supercritical water in the processes of conversion of Domanik rock organic matter

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

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