Microbial Enhanced Oil Recovery (MEOR) is a potential technology for residual heavy oil recovery. Many heavy oil fields in Oman and elsewhere have difficulty in crude oil recovery because it is expensive due to its high viscosity. Indigenous microbes are capable of improving the fluidity of heavy oil, by changing its high viscosity and producing lighter oil fractions. Many spore-forming bacteri...

Surfactant flooding is an enhanced oil recovery (EOR) method for recovering residual in the reservoir through mechanism of interfacial tension (IFT) reduction and wettability alteration. Due to toxicity high cost associated with conventional surfactants, recent research has focussed on developing low-cost environmentally benign surfactants. Herein, a green surfactant extracted from Vernonia Amy...

In conventional chemical Enhanced Oil Recovery (EOR), surfactant mixtures must be optimized to obtain the so-called “optimum formulation” characterized by a three-phase behaviour (WIII) and an ultra-low interfacial tension between crude oil injected water. To attain this condition, discontinuous salinity scans of Surfactant-Oil-Water (SOW) systems are usually performed in series sealed pipettes...

Carbon dioxide storage combined with enhanced oil recovery (CCS-EOR) is an important approach for reducing greenhouse gas emissions. We use pore-scale imaging to help understand CO2 and during CCS-EOR at immiscible near-miscible injection conditions. study in situ flooding oil-wet reservoir rock elevated temperature pressure using X-ray micro-tomography. observe the predicted, but hitherto unre...

Production of mature oil fields emits significant amount CO2 related to circulation and handling large volumes gas water. This can be reduced either by (1) using a low-carbon energy source and/or (2) reducing the non-hydrocarbon produced/injected fluids. paper describes how improved recovery techniques designed reduce intensity (kgCO2/bbl oil) production efficient use injectants. It is shown th...

■ Fully automatic operation From the world’s first commercial CO2 membrane plant for CO2 recovery in EOR applications (Scurry Area Canyon Reef Operators [SACROC] oil field) to the world’s largest CO2 membrane plant for natural gas cleanup (1.28 Bcf/d, Cakerawala Gas Field Development—Petronas Carigali Hess Operating Company), Schlumberger continues to lead the industry with state-of-the-art CYN...

The present work proposes for the first time a mathematical model for describing the rheological behavior of heavy and extra-heavy crude oils in the presence of nanoparticles. This model results from the combination of two existing mathematical models. The first one applies to the rheology of pseudoplastic substances, i.e., the Herschel-Bulkley model. The second one was previously developed by ...

The relative immobility of foam in porous media suppresses the formation of fingers during oil displacement leading to a more stable displacement which is desired in various processes such as Enhanced Oil Recovery (EOR) or soil remediation practices. Various parameters may influence the efficiency of foam-assisted oil displacement such as properties of oil, the permeability and heterogeneity of...

Residual oil zones (ROZs) could present a new, potentially large and commercially viable resource for Australia provide an avenue geological storage of carbon dioxide (CO2) through CO2 enhanced recovery (CO2-EOR). These reservoirs, which can contain moderate amount residual resemble water-flooded fields, be associated with conventional fields (brownfields) or occur no main pay zone (greenfields...