Transformation of residual oil in producing formations of the Romashkino oil field during hydrothermal treatment

Kayukova, G. P.; Kiyamova, A. M.; Nigmedzyanova, L. Z.; Rakmankulov, S; Sharipova, N. S.; Smelkov, V. M.

doi:10.1134/s0965544107050027

Cited by 6 publications

(1 citation statement)

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“…The composition changes of crude oil in the presence of carbonate rock were studied on model systems "oil-carbonate rock" [22]. The impact of rock-forming minerals, quartz, kaolin, montmorillonite, on the composition and characteristics of the products of hydrothermal treatment was studied in [23,24]. Based on the results of the experiments, it might be concluded that minerals accelerated hydrothermal transformation of heavy oil from Liaohe field and led to a decrease in the viscosity and average molecular weight of the oil.…”

Section: Introductionmentioning

confidence: 99%

Influence of Metal Oxides and Their Precursors on the Composition of Final Products of Aquathermolysis of Raw Ashalchin Oil

et al. 2021

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Experiments were conducted simulating hydrothermal conversion of heavy oil in the presence of carbonate, kaolin, Al2O3, Ni2+ and Cu2+, NiO mixed with poly-α-olefins, C6H8O7, C2H4O2 at 290–375 °C and 10–135 bar. Al2O3, carbonate at 375 °C and 135 bar, accelerated the resin degradation. Experiments with carbonate at 350 °C and 10 bar showed no significant composition changes. NiSO4, CuSO4, kaolin mineral, at 350 °C and 78 bar, accelerated decomposition of resins (from 35.6% to 32.5%). Al2O3 and carbonate at 290 °C and 14 bar led to the destruction of asphaltenes (from 6.5% to 4.7% by weight), which were adsorbed on the surface of carbonate. Al2O3, NiO, poly-α-olefins at 350 °C and 78 bar accelerated C–C bond cracking of high-boiling asphaltenes. C6H8O7, rock-forming carbonate, at 360 °C and 14 bar, contributed to the polymerization and polycondensation of hydrocarbons with the formation of additional resins. C2H4O2 and kaolin at 360 °C and 12 bar affected the reduction in the resin content from 35.6% to 31.9% wt. C2H4O2 interacted with the active metals with the formation of acetate salts exhibiting catalytic activity.

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Section: Introductionmentioning

confidence: 99%