The use of water soluble polymers for enhanced oil recovery (EOR) provides an additional chance to extract between 5 to 30% of total oil in place from drilled and mature reservoirs [1]. A big number of patents, mainly from multinational companies, remark the importance of polymers for EOR [2]. The role of the polymer in the aqueous solution is to increase the viscosity of the displacement solut...

Polymer flooding is a chemical enhanced oil recovery method that improves the of by controlling mobility water to phase. It uses polymer solutions increase viscosity displacing thereby decreasing water/oil ratio (Speight, 2013). The volumetric and displacement sweep efficiencies are positively affected flooding. aqueous phase increased due molecular size structure used. main objective this rese...

Abstract Chemical enhanced oil recovery applications continue to face a variety of obstacles, particularly in high saline and high-temperature reservoirs, addition chemical prices. This issue creates difficulty developing optimal recipes that can withstand these extreme circumstances so achieve maximal hydrocarbon at the lowest feasible cost. The usefulness surfactant polymer (SP) mobilizing in...

The potential target of water flooding measures has gradually changed to thin differential reservoir in three types reservoirs. fracturing proportion block oil well reached more than 60%, and the existing design code can not fully meet needs fracturing. Through effect evaluation technical parameters matching different reservoir, field test is carried out establish limit optimal technological fo...

BACKGROUND Biodegradation is a cheap and environmentally friendly process that could breakdown and utilizes heavy crude oil (HCO) resources. Numerous bacteria are able to grow using hydrocarbons as a carbon source; however, bacteria that are able to grow using HCO hydrocarbons are limited. In this study, HCO degrading bacteria were isolated from an Omani heavy crude oil field. They were then id...

In enhanced oil recovery (EOR), the micro-oil droplet heavily affected the stability of foam and prevented foam flooding. In this paper, the oil bridge-stretching mechanism of foam rupture was described through molecular dynamics with the aim of providing supplements to the experiments at the molecular level. Two important phenomena for foam rupture have been pointed out by the simulation. One ...

Surfactant flooding is a proven method employed to improve the recovery of crude oil from subsurface reservoirs but knowledge about microemulsion formation, factors related their stability, and trapping mechanism components in still not clear for designing injection fluid specific type. The interaction mechanisms four oils with surfactant-brine solutions were studied this work better insight in...

In this study, a chemical additive made by a combination of polymer, alkaline, and silica nanoparticles is used to control the oil recovery and relative permeability curves. Various parametersincluding the type and concentration of polymer, alkaline, and nanosilica particles have been studied.To evaluate the efficiency of these additives, we performed unsteady state displaceme...