Results 71 to 80 of about 1,915 (207)
Asphaltene Precipitation Study during Natural Depletion at Reservoir Conditions
, 2010 This study concerns with experimental investigations of asphaltene precipitation at reservoir conditions of a crude sample from an Iranian oil reservoir during pressure depletion.
S.. Afshari +2 more
core +1 more source
Review of asphaltene properties and precipitation modeling [PDF]
, 2019 Asphaltenes are of special interest to the petroleum industry due to their complex, non-linear phase behavior and tendency to deposit in reservoir and production equipment that drives up production and remedial costs associated with oil recovery ...
Anand, Neha
core +1 more source
Towards Carbon Neutralization: Clean and Efficient Use of Coal
Carbon Neutralization, Volume 5, Issue 1, January 2026.This paper provides a comprehensive exploration of the clean and efficient utilization of coal resources, with a particular emphasis on the potential of coal chemical technology, carbon materials, and CCUS technology, and the opening up of innovative pathways for the utilization of coal resources.
Xin Wen +6 more
wiley +1 more source
A Systematic approach to determine the optimal production rate to inhibit asphaltene deposition [PDF]
, 2016 This thesis utilizes a systematic mathematical model, scaling analysis, to quantify the effect of production rate on asphaltene deposition, using a set of uniquely described mathematical equations modeled for the deposition process.
Nosakhare, Adesuwa
core
Molecular thermodynamics for prevention of asphaltene precipitation [PDF]
, 1996 Crude petroleum is a complex mixture of compounds with different chemical structures and molecular weights. Asphaltenes, the heaviest and most polar fraction of crude oil, are insoluble in normal alkanes such as n-heptane, but they are soluble in aromatic solvents such as toluene.
Wu, Jianzhong, Prausnitz, J.M.
openaire +2 more sources
Study on Hydrothermal Catalytic Oxidation Demulsification of Oily Sludge
Engineering Reports, Volume 8, Issue 1, January 2026.Hydrothermal catalytic oxidation (HTCO) treated oily sludge optimally at 50 mg L−1 catalyst, 200°C, 10 min, oxidation coefficient 1, and 1:5 solid–liquid ratio, achieving 89.46% oil recovery. HTCO efficiently breaks emulsions, improves oil quality, lowers costs, and benefits the environment.
Tao Yu +4 more
wiley +1 more source
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Although water flooding is widely applied for enhanced oil recovery (EOR), its efficiency is often limited by excessive water production and scale formation, which damage reservoir permeability and reduce oil recovery. This study evaluates the performance of smart‐water and hybrid‐smart‐water–polymer injection as a novel approach to mitigate these ...
Mohammad Amin Bagrezaie +5 more
wiley +1 more source
Geofluids, Volume 2026, Issue 1, 2026.Aiming at the “three‐low” challenges (low permeability, low gas saturation, and low critical desorption‐to‐storage ratio [CDSR]) of Chinese coalbed methane (CBM) reservoir materials, this study adopted chlorine dioxide (ClO2) chemical modification on long‐flame, coking, and anthracite coal materials.
Chaowen Hu +7 more
wiley +1 more source
Study on Asphaltene Precipitation Using Thin Film Micro-reactor [PDF]
, 2015 Asphaltenes are present in most petroleum materials and in all heavy oils and bitumen from oil sands. Asphaltenes are the heaviest and most complex molecules in crude oil and are defined by its solubility class as the constituents of oil which are ...
Musa, Muhamad Nabil Azmi
core
International Journal of Microbiology, Volume 2026, Issue 1, 2026.Despite the benefits of petroleum hydrocarbon as essential raw energy sources in many industries, they cause major global environmental pollution. Petroleum hydrocarbons pollutants are highly toxic and recalcitrant, making them dangerous and persistent over long periods in an ecosystem.
Zeddy Yegon +5 more
wiley +1 more source