scholarly journals Heavy oil oxidation in the nano-porous medium of synthetic opal

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 18110-18116 ◽  
Author(s):  
Andrey Galukhin ◽  
Dmitrii Bolmatenkov ◽  
Yuri Osin
Keyword(s):  
Porous Medium ◽  
Heavy Oil ◽  
Textural Properties ◽  
Synthetic Opal ◽  
Oil Oxidation

In the current study we synthesized nano-porous opal, investigated its morphological and textural properties, and showed that nanoconfinement affects reactivity of oil.

Improving heavy oil oxidation performance by oil-dispersed CoFe2O4 nanoparticles in In-situ combustion process for enhanced oil recovery

Fuel ◽  
2021 ◽  
Vol 285 ◽  
pp. 119216
Author(s):  
Seyedsaeed Mehrabi-Kalajahi ◽  
Mikhail A. Varfolomeev ◽  
Chengdong Yuan ◽  
Almaz L. Zinnatullin ◽  
Nikolay O. Rodionov ◽  
...  
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Combustion Process ◽  
Oil Oxidation ◽  
Cofe2o4 Nanoparticles ◽  
In Situ Combustion ◽  
Oxidation Performance

The Effect of Injected Fluid Volume on Heavy Oil Displacement in a Porous Medium

1986 ◽  
Author(s):  
V. Reitman ◽  
V.S.V. Rajan ◽  
T.R. Heidrick
Keyword(s):  
Porous Medium ◽  
Heavy Oil ◽  
Fluid Volume ◽  
Oil Displacement

In-Situ Upgrading of Heavy Oil/Bitumen During Steam Injection by Use of Metal Nanoparticles: A Study on In-Situ Catalysis and Catalyst Transportation

2013 ◽  
Vol 16 (03) ◽  
pp. 333-344 ◽  
Author(s):  
Y.. Hamedi Shokrlu ◽  
T.. Babadagli
Keyword(s):  
Porous Medium ◽  
Porous Media ◽  
Zeta Potential ◽  
Raney Nickel ◽  
Heavy Oil ◽  
Nickel Nanoparticles ◽  
Steam Injection ◽  
Metal Particles ◽  
Electrostatic Forces

Summary Studies on the application of transition-metal catalysts for heavy-oil or bitumen in-situ upgrading were conducted in the absence of a porous medium, mainly measuring the characteristics of heavy oil in reaction with metal ions at static conditions with the help of a magnetic stirrer. Metal species in ionic form are not soluble in oil phase. Therefore, metal particles, as inhomogeneous catalysts, are considered in this paper. Furthermore, dynamic tests in porous media are needed to clarify the injection possibility of the metal particles and their effect on in-situ upgrading of heavy oil. Injection of metal particles may deteriorate the recovery process by damaging porous media because of attractive forces such as van der Waals and electrostatic forces between particles and porous rock. A better understanding of these forces and their importance in the retention of particles is required. In this paper, the catalysis effect of pure nanometer-sized nickel during steam-injection application was compared with that of an industrial catalyst such as micron-sized Raney nickel. The changes in the viscosity, refractive index, and asphaltene content were measured after each test to analyze the catalysis effects. Nickel nanoparticles showed a better catalysis compared with Raney nickel. The approximate optimum concentration of the catalysts was determined. Then, the catalysis effect of nickel nanoparticles was studied in the presence of sandpack as a porous medium. The results showed accelerated catalysis in presence of the sands. Also, nickel nanoparticles improved the oil recovery factor. The next phase of this paper studies the injectivity and transport of nickel particles. The injected suspension was stabilized by use of xanthan gum polymer and ultrasonication. The effect of solution pH, which controls the magnitude of the repulsive electrostatic forces, was clarified. Stabilization of the metal particles’ suspension was studied at different pH values through zeta-potential measurements. Also, the zeta potential of the recovered suspensions was studied to confirm the stability of the suspension during travel through the porous medium. Depending on the size, particles carry different charges and have different settling velocities. Therefore, the stabilization pH and dispersant concentration were different from one sample to another. The results of the injectivity tests confirmed the lower retention and better injectivity of nanoparticles in comparison with micron-sized particles.

An easy approach based on textural properties to evaluate catalyst deactivation during heavy oil hydrotreating

2020 ◽  
Vol 133 ◽  
pp. 105823 ◽  
Author(s):  
Vicente Sámano ◽  
Mohan S. Rana ◽  
Jorge Ancheyta
Keyword(s):  
Heavy Oil ◽  
Catalyst Deactivation ◽  
Textural Properties

Oxidation characteristics of heavy crude oil in ignition process

2017 ◽  
Vol 20 (1) ◽  
Author(s):  
Yi-fei LIU ◽  
Kai LIU
Keyword(s):  
Crude Oil ◽  
Heavy Oil ◽  
Oil Reservoirs ◽  
Ignition Process ◽  
Oil Oxidation ◽  
Oxidation Reactions ◽  
Heavy Oil Reservoirs ◽  
Oxidation Characteristics ◽  
Heavy Crude

Abstract:The ignition process has a significant influence on the success of in-situ combustion at heavy oil reservoirs. During this process, oxidation reactions between crude oil and injected air mainly occurred. In this paper, a series of oxidation experiments were performed at different reaction temperatures and air-oil ratios to investigate the heavy oil oxidation characteristics at different stages of the ignition process. The results revealed that heat release and production of CO and CO

Thermal Study on Stabilizing the Combustion Front via Bimetallic Mn@Cu Tallates during Heavy Oil Oxidation

2019 ◽  
Vol 34 (5) ◽  
pp. 5121-5127
Author(s):  
Mohammed A. Khelkhal ◽  
Alexey A. Eskin ◽  
Danis K. Nurgaliev ◽  
Alexey V. Vakhin
Keyword(s):  
Heavy Oil ◽  
Combustion Front ◽  
Thermal Study ◽  
Oil Oxidation

Specific kinetic triplet estimation of Tahe heavy oil oxidation reaction based on non-isothermal kinetic results

Fuel ◽  
2019 ◽  
Vol 242 ◽  
pp. 545-552 ◽  
Author(s):  
Yafei Chen ◽  
Wanfen Pu ◽  
Xueli Liu ◽  
Yibo Li ◽  
Xiaolong Gong ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oxidation Reaction ◽  
Oil Oxidation ◽  
Kinetic Triplet ◽  
Isothermal Kinetic

Oil-Dispersed α-Fe2O3 Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

2021 ◽  
Author(s):  
Seyedsaeed Mehrabi-Kalajahi ◽  
Mikhail A. Varfolomeev ◽  
Chengdong Yuan ◽  
Nikolay O. Rodionov ◽  
Almaz L. Zinnatullin ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Oxidation ◽  
Fe2o3 Nanoparticles

scholarly journals Influence of Carbonate Minerals on Heavy Oil Oxidation Behavior and Kinetics by TG-FTIR

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8136
Author(s):  
Kristina A. Ariskina ◽  
Zhenfeng Ding ◽  
Mustafa Abaas ◽  
Chengdong Yuan ◽  
Dmitrii A. Emelianov ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oxidation Behavior ◽  
Coupled Analysis ◽  
Significant Shift ◽  
Oil Oxidation ◽  
Heavy Oils ◽  
Temperature Oxidation ◽  
Positive Effects ◽  
Ft Ir ◽  
The Impact

The impact of rock minerals on the performance of in situ combustion (ISC) techniques for enhanced oil recovery (EOR) is very important. This work is aimed at investigating the influence of carbonate rocks (dolomite and calcite) on heavy oil oxidation by Thermogravimetry–Fourier-Transform-Infrared (TG-FT-IR) coupled analysis. Two heavy oils with 19.70° and 14.10° API were investigated. Kinetic analysis was performed using TG data by differential and integral isoconversional methods. From TG-DTG curves, three reaction stages, i.e., low-temperature oxidation (LTO), fuel deposition (FD), and high-temperature oxidation (HTO), were defined for both two heavy oil samples, and their reaction mechanism was explained combining the FT-IR data. After the addition of calcite or dolomite, three reaction stages became two with the disappearance of FD, and a significant shift of reaction stages into lower temperatures was also observed. These significant changes in oxidation behavior are because calcite and dolomite promoted the coke formation and combustion by reducing the activation energy barrier and changing reaction pathways, which results in a smooth transition from LTO to HTO. Dolomite exhibited a slightly better promotion effect on LTO-FD than calcite, while calcite exhibited a better acceleration effect on FD-HTO than dolomite in terms of shifting reaction stages. Generally, calcite exhibited a better catalytic effect than dolomite. In spite of the different catalytic performance of calcite and dolomite, they do both show positive effects on combustion process regardless of the difference in the properties and composition of heavy oils. The findings in this work indicate that calcite and dolomite rocks are favorable for the ISC process, and when it comes to the ISC kinetics, the interaction between crude oil and rock must be considered.

scholarly journals Response to Comment on Oil-Dispersed α-Fe2O3 Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

2021 ◽  
Author(s):  
Seyedsaeed Mehrabi-Kalajahi ◽  
Mikhail A. Varfolomeev ◽  
Chengdong Yuan ◽  
Nikolay O. Rodionov ◽  
Almaz L. Zinnatullin ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Oxidation ◽  
Fe2o3 Nanoparticles
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