With the increasing demand for efficient extraction of residual oil, enhanced oil recovery
(EOR) offers prospects for producing more reservoirs' original oil in place. As one of the most …

Understanding the rock/fluid interaction is key to the success of any enhanced oil recovery
(EOR) method. However, EOR methods are significantly affected when the reservoir …

It is widely accepted that oil recovery during waterflooding can be improved by modifying the
composition of the injected brine. A typical approach is diluting the formation water to a …

More than half of the oil and gas resources of the world are hosted in carbonate reservoirs.
Also, a total of 60% of their residual oil is left unswept during conventional primary and …

The spontaneous combustion of coal in goaf was effectively prevented by adding nano-
aluminum hydroxide (Nano-ATH) into the composite foaming agent solution in the …

In mature reservoirs, over 60% of oil remains trapped after waterflooding and can only be
recovered using enhanced oil recovery (EOR) methods, including chemical EOR …

Surfactant-polymer (SP) flooding is considered an efficient technique to increase the
recovery of oil, especially from carbonates reservoirs, because of their complex nature. The …

Injection of surfactant and polymer at the same time is one of the challenges that reduce
their performance in reservoirs. Using a polymeric surfactant (PS) as a single new material …

Several core-flooding-based experimental studies demonstrated the effect of calcium and
magnesium ions and it is found that these hard ions have detrimental effects on oil recovery …

Composite systems of surfactants have been extensively applied in the recovery and
removal of heavy oil. In this work, the characteristics and mechanisms of heavy oil removal …