Special Issue "Catalysis in Aquathermolysis of Heavy Oil"
Deadline for manuscript submissions: 20 December 2023 | Viewed by 7138
Interests: research in the field of thermal and chemical enhanced oil recovery using catalysts for in situ heavy oil upgrading; design and synthesis of oil-soluble, nanosized catalysts and catalytic systems with hydrogen donors for the process of aquathermolysis; investigation of catalysts active form composition, structure, and their transformation after thermal influences; investigation of composition, structure, and transformation of heavy oil components after thermal influences; modernization of thermal heavy oil recovery technologies
Interests: enhanced oil recovery; chemical EOR; gas EOR; thermal EOR; digital rock; reservoir physics; multiphase flow; hydraulic fracturing; special core analysis; microfluidics; hydrogen production
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Nowadays, the current global trend is focusing on actively developing heavy oil deposits, which requires the use of unconventional production methods. In fact, thermal enhanced oil recovery methods are occupying a prevailing place among other unconventional enhanced oil recovery methods, in particular, injection of superheated steam (cyclic steam injection, steam-assisted gravity drainage, etc.). Such an impact on the reservoir, due to high temperature and the presence of catalytically active rocks minerals, may lead to improvements in the composition of the produced oil and its decreased viscosity. This process is called aquathermolysis, as recommended by Hyne and co-workers. However, at the same time, the high temperature promotes the removal of gaseous products and the formation of free radicals which initiate condensation reactions, and the viscosity of the oil at the surface becomes even higher. All this leads to an increase in capital and operating costs as obstacles for the development of the field as a whole.
The development of special reagents that would maintain the high mobility of heavy oil during production and thereby increase the energy efficiency of thermal technologies is important and relevant. Such reagents can be present in various catalytic systems. Actually, various compounds of transition metals formed in situ from oil-soluble precursors as well as directly stabilized suspensions or emulsions of nanoparticles can be used as such catalysts for oil aquathermolysis reactions.
It is also important to study the influence of various factors on the efficiency of catalytic systems during the conversion of certain compounds and their groups that make up heavy oil, such as resin and asphaltene components. In addition to this, the metal nature of the catalyst, the morphology and sizes of its particles, as well as the spatial arrangement of metals in the crystal lattice in the case of bi- and polymetallic catalysts are also important factors to study during aquathermolysis processes.
Establishing the relationship between the composition, size, and morphology of catalyst particles and their cracking activity during in situ upgrading of heavy and extra-heavy oil in superheated steam environments will facilitate the development of modern enhanced heavy oil production technologies.
Dr. Sergey A. Sitnov
Prof. Dr. Alexey Cheremisin
Manuscript Submission Information
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- heavy oil
- transition metals
- dispersed catalysts
- supported catalysts
- oil-soluble catalysts
- hydrogen donors
- in situ upgrading