This work presents a systematic study of asphaltene pre-aggregation phenomena in the absence and presence ionic liquids (ILs) from family 1-alkyl-3-methylimidazolium by molecular dynamics simulations. The effects alkyl chain length cation (studying ILs with chains between C4 C10) dimension anion (testing chloride bromide) on aggregation behavior asphaltenes have been studied. To correlate resul...

Abstract Bitumen contains approximately 5 wt% sulfur so it must be removed before being used as fuel. Herein, we performed oxidative desulfurization of bitumen at room temperature using n-pentane and ultrasound to reduce viscosity mix the bitumen-dissolved aqueous reaction solution physically. The states in ratio were investigated confirm process. Additionally, developed a novel method for sepa...

As a physiochemical property, asphaltenes are known to be one the most surface active compounds in crude oil. Due to such property, their behavior is most probably influenced by fluid-fluid interactions at the contact surface (interface). Potentially and naturally, in most cases, water is in contact with crude oil and is co-produced with it as well. Considering that asphaltene molecules are pol...

In view of the deterioration oil well liquid supply capacity and increase effect after multiple rounds carbon dioxide (CO2) huff puff, according to actual conditions Ng12 reservoir in XA oilfield, an indoor physical simulation experimental model was established. The parameters were determined, five CO2 puff experiments carried out, crude produced water flooding stage different collected. effect...