Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst

This paper investigates aquathermolysis of heavy oil in carbonate reservoir rocks from Boca de Jaruco, which is developed by the cyclic steam stimulation method. The nickel-based catalyst precursor was introduced in order to intensify the conversion processes of heavy oil components. The active form...

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Main Authors:	Alexey V. Vakhin, Firdavs A. Aliev, Irek I. Mukhamatdinov, Sergey A. Sitnov, Andrey V. Sharifullin, Sergey I. Kudryashov, Igor S. Afanasiev, Oleg V. Petrashov, Danis K. Nurgaliev
Format:	Article
Language:	English
Published:	MDPI AG 2020-05-01
Series:	Processes
Subjects:	heavy oil in situ upgrading nickel aquathermolysis catalyst SARA-analysis
Online Access:	https://www.mdpi.com/2227-9717/8/5/532

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record_format	Article
spelling	doaj-93e9f35c407a481f863f9b351bb02e6a2020-11-25T02:34:28ZengMDPI AGProcesses2227-97172020-05-01853253210.3390/pr8050532Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble CatalystAlexey V. Vakhin0Firdavs A. Aliev1Irek I. Mukhamatdinov2Sergey A. Sitnov3Andrey V. Sharifullin4Sergey I. Kudryashov5Igor S. Afanasiev6Oleg V. Petrashov7Danis K. Nurgaliev8Kazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaKazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaKazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaKazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaKazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaJSC «Zarubezhneft», Armiyansky per., 9/1/1, Bld.1., Moscow 101990, RussiaJSC «Zarubezhneft», Armiyansky per., 9/1/1, Bld.1., Moscow 101990, RussiaJSC «Zarubezhneft», Armiyansky per., 9/1/1, Bld.1., Moscow 101990, RussiaKazan Federal University, 18 Kremlyovskaya str., Kazan 420008, RussiaThis paper investigates aquathermolysis of heavy oil in carbonate reservoir rocks from Boca de Jaruco, which is developed by the cyclic steam stimulation method. The nickel-based catalyst precursor was introduced in order to intensify the conversion processes of heavy oil components. The active form of such catalysts—nickel sulfides—are achieved after steam treatment of crude oil at reservoir conditions. The experiments were carried out on a rock sample extracted from the depth of 1900 m. Changes in composition and structure of heavy oil after the conversion were identified using SARA-analysis, Gas Chromatography-Mass Spectroscopy of saturated fractions, FTIR spectroscopy of saturated fractions, and MALDI of resins. It is revealed that catalyst particles provide a reduction in the content of resins and asphaltenes due to the destruction of carbon-heteroatom bonds. Moreover, the destruction of C=C<sub>arom. </sub>bonds and interactions with aromatic rings are heightened. In contrast, the results of experiments in the absence of catalysts exposed polymerization and condensation of aromatic rings. The most remarkable result to emerge from the thermo-catalytic influence is the irreversible viscosity reduction of produced crude oil enhancing the oil recovery factor. Moreover, the introduction of catalysts increases the gas factor due to additional gas generation as a result of aquathermolysis reactions. The yield of methane gas is significantly high in the experimental runs with oil-saturated rocks rather than crude oil experiments. The gas factor reaches 45 m<sup>3</sup>/ton.https://www.mdpi.com/2227-9717/8/5/532heavy oilin situ upgradingnickelaquathermolysiscatalystSARA-analysis
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Alexey V. Vakhin Firdavs A. Aliev Irek I. Mukhamatdinov Sergey A. Sitnov Andrey V. Sharifullin Sergey I. Kudryashov Igor S. Afanasiev Oleg V. Petrashov Danis K. Nurgaliev
spellingShingle	Alexey V. Vakhin Firdavs A. Aliev Irek I. Mukhamatdinov Sergey A. Sitnov Andrey V. Sharifullin Sergey I. Kudryashov Igor S. Afanasiev Oleg V. Petrashov Danis K. Nurgaliev Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst Processes heavy oil in situ upgrading nickel aquathermolysis catalyst SARA-analysis
author_facet	Alexey V. Vakhin Firdavs A. Aliev Irek I. Mukhamatdinov Sergey A. Sitnov Andrey V. Sharifullin Sergey I. Kudryashov Igor S. Afanasiev Oleg V. Petrashov Danis K. Nurgaliev
author_sort	Alexey V. Vakhin
title	Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst
title_short	Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst
title_full	Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst
title_fullStr	Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst
title_full_unstemmed	Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst
title_sort	catalytic aquathermolysis of boca de jaruco heavy oil with nickel-based oil-soluble catalyst
publisher	MDPI AG
series	Processes
issn	2227-9717
publishDate	2020-05-01
description	This paper investigates aquathermolysis of heavy oil in carbonate reservoir rocks from Boca de Jaruco, which is developed by the cyclic steam stimulation method. The nickel-based catalyst precursor was introduced in order to intensify the conversion processes of heavy oil components. The active form of such catalysts—nickel sulfides—are achieved after steam treatment of crude oil at reservoir conditions. The experiments were carried out on a rock sample extracted from the depth of 1900 m. Changes in composition and structure of heavy oil after the conversion were identified using SARA-analysis, Gas Chromatography-Mass Spectroscopy of saturated fractions, FTIR spectroscopy of saturated fractions, and MALDI of resins. It is revealed that catalyst particles provide a reduction in the content of resins and asphaltenes due to the destruction of carbon-heteroatom bonds. Moreover, the destruction of C=C<sub>arom. </sub>bonds and interactions with aromatic rings are heightened. In contrast, the results of experiments in the absence of catalysts exposed polymerization and condensation of aromatic rings. The most remarkable result to emerge from the thermo-catalytic influence is the irreversible viscosity reduction of produced crude oil enhancing the oil recovery factor. Moreover, the introduction of catalysts increases the gas factor due to additional gas generation as a result of aquathermolysis reactions. The yield of methane gas is significantly high in the experimental runs with oil-saturated rocks rather than crude oil experiments. The gas factor reaches 45 m<sup>3</sup>/ton.
topic	heavy oil in situ upgrading nickel aquathermolysis catalyst SARA-analysis
url	https://www.mdpi.com/2227-9717/8/5/532
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Catalytic Aquathermolysis of Boca de Jaruco Heavy Oil with Nickel-Based Oil-Soluble Catalyst

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