This research is intended to reveal the difference and connection of oxidation behavior between crude oil its SARA fractions. Thermogravimetry (TG) differential scanning calorimetry (DSC) techniques were used characterize behavior. The results showed that individual components exhibited an obvious difference. Saturates a weak high-temperature (HTO) region. Asphaltenes generated more heat in HTO than low-temperature (LTO) Aromatics intense exothermic activity both LTO regions. Heat release...

Nanoparticles have proven to be successful catalysts for oil combustion. To maximize their catalytic performance, it is necessary provide nanoparticle aggregation stability during the combustion process. The classical approach stabilization of nanoparticles assumes application different stabilizers, like surfactants or polymers, attached particles' surfaces, preventing via steric electrostatic repulsion. Thus, determined by thermal surfactant- polymer-based coatings, which not sufficient...

Oxidation of heavy and extra-heavy oils is recognized as a complicated process due to the heterogeneous nature its reaction medium lack knowledge concerning mechanisms. The next decade likely witness considerable rise in use situ combustion extract oils. However, major issue instability front. For this reason, application catalysts was viewed way initiate early stabilize resultant In study, we have synthesized an efficient precursor iron-containing catalyst, studied effect on heavy-oil...

In recent years, protection of the environment from activities associated with enhanced oil recovery has been considered a crucial priority for decision-makers in international community. The situ combustion process as promising thermal method attracting considerable interest terms improving production and environmental protection. However, this technique is not yet well studied. This paper outlines new approach to improve heavy oxidation by designing biobased oil-soluble catalysts that are...

The combustion front is a crucial parameter in determining the efficiency of situ techniques during enhanced oil recovery. Nowadays, catalytic systems are widely believed to be an efficient tool stabilize front. This study aimed investigate synthesis and activity manganese (II) oxide nanoparticles high-temperature oxidation heavy oils. high low-temperature regions were investigated this study. obtained characterized studied by using X-ray powder diffraction (XRPD), scanning electron...

A remarkable feature of heavy oil oxidation during the in situ combustion process is difficulty maintaining front to flow throughout reservoir. Recent developments suggest use catalysts regarding this issue. Previous works have been limited by catalyst choice. Moreover, many research failed provide a that meets requirements efficiency, low-cost, and positive impact on surrounding. This paper presents new type based tallate, each combined with nickel cobalt, respectively, as highly efficient...

Metal tallates are generating considerable interest as catalysts for thermally enhanced oil recovery. Meanwhile, in situ combustion is considered a promising recovery method. It still viewed complicated process result of its multiphasic, multicomponent, and multistep reactions occurring within it. In this study, we investigated the impact Mn@Cu tallate on heavy oxidation to highlight effect stabilizing front using differential scanning calorimetry combined with an isoconversional principle...

Due to the depletion of conventional hydrocarbon resources, both China and Russia are giving more attention exploration production unconventional oil gas especially those generated accumulated within source rocks. In an attempt further understand mechanisms these detailed mineralogical, lithological, geochemical studies were performed compare rock samples from i) Longmaxi Formation Lower Silurian in Sichuan Basin (China), ii) Semiluksk Frasnian Stage Upper Devonian Volga-Ural region East...

Heavy oil reserves are recognized as being a significant yet challenging energy resource due to high viscosities. It is common knowledge that thermal recovery methods like in situ combustion rely on fuel deposition and oxidation enhance mobility. This study explored micro nanostructured manganese oxide catalysts improve the efficiency of heavy oxidation. MnO composites were synthesized characterized by X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-dispersive...

We synthesized manganese oxide(II) submicroparticles stabilized with oleic acid and used them as oil-dispersible catalyst precursor promoting a heavy oil oxidation process. Size, morphological properties, well composition of the were studied in depth by X-ray phase diffraction analysis, thermogravimetric–mass spectrometry scanning electron microscopy, energy dispersive nitrogen adsorption measurements. applied nonisothermal kinetic analysis coupled an isoconversional approach to study...

Metal tallates are attracting increasing interest in thermal enhanced oil recovery. Biodegraded heavy catalytic oxidation was investigated the presence of manganese tallates. Differential scanning calorimetry (DSC) used to highlight effect on oil. The obtained data have been performed using Kissinger method based isoconversional principle. Strong evidence illustrated high temperature region (HTO). catalyst increased constant rate this almost three times more than when reactions occur its...

The increased contribution of science-intensive clean materials and technologies to the total industrial production is one essential prerequisites for future sustainable development. Chemical activation based on a nonfired or low-temperature approach cementitious from glassy aluminosilicates, including calcined clays, an intensively developing promising technology. This study investigated potential clays as precursors alkali-activated cements (AACs) by considering three types low-grade...

The process of in situ combustion is generally accepted as an important thermal method for enhancing heavy oil recovery. In the history combustion, focus has always been on stabilizing front which viewed key to its successful application. For this reason, most studies have proposed use transition metals a catalytic base order maintain and promote breakthrough. aim our work was broaden current knowledge using oxidation processes. we performed differential scanning calorimetric experiments...

In this paper, we discuss the amount of generated gaseous and liquid hydrocarbons as a product artificial maturation organic matters Domanic black shale. The material balance matter for initial rock sample after thermal treatment at 300 500 °С were estimated. hydrocarbon was minimum °С. As result kerogen destruction, no asphaltenes observed during generation hydrocarbons. Based on results elemental analysis, Van Krevelen diagram plotted.

Oil deposits of the Bashkirian stage low-amplitude uplifts on southwestern slope South Tatar arch are considered. It has been established that in sections stage, only upper two oil potentially productive. The reservoir rocks composed leached packstone-grainstone. productivity is determined by intensity leaching carbonate and nature saturation, while lower one degree oxidation oils manifestation secondary mineralization. Oxidation from deposit associated with penetration peripheral stratal...

Study was conducted of rocks composition and its extracted moving hydrocarbons from Domanic deposits Tatarstan, differing in location occurrence depth 1379 to 1891 m. The are represented carbonate-siliceous pure carbonates with calcite content 24 99%. With increase rocks, the yield extracts them decreases. Within Romashkinskoye field, an bitumoids host - 0.63 2.40% established. Saturated changes 18 39%, asphaltenes 9 26%.