Stability and performance of poly γ-(glutamic acid) in the presence of sulfate ion for enhanced heavy oil recovery

Performance evaluation of produced biopolymers by native strains on enhanced oil recovery

“…To visualize the mechanism of biopolymer flooding procedure, a glass micro‐model was used. The glass and transparent nature of the micromodel exposes macro and microscopic displacements 7 . The heterogeneous pattern of micromodel was designed by Corel Draw software.…”

“…This increase in the viscosity of injected fluid (biopolymer solution) reduces the mobility ratio of injected biopolymer solution relative to the oil. 7 Therefore, the displacement of entrapped oil was improved and thereby, the front fingering in the porous medium was decreased in comparison to what occurred during water flooding. As a consequence, the recovery of oil was increased from micromodel medium.…”

“…Furthermore, new methods must be developed for extracting the rest of the oil in the reservoir. Among these new methods, microbial‐enhanced oil recovery (MEOR) is one of the most economical and effective methods that are environmental friendly and non‐toxic to humans 7 …”

“…Among these new methods, microbialenhanced oil recovery (MEOR) is one of the most economical and effective methods that are environmental friendly and non-toxic to humans. 7 MEOR is based on the strains, its biological production, and its effect on oil, water, and rock properties in reservoir. Besides, the most of the strains involved in the process of oil recovery have been bacteria.…”

Effect of Ligand Structure on the Kinetics of Heavy Oil Oxidation: Toward Biobased Oil-Soluble Catalytic Systems for Enhanced Oil Recovery

“…However, the main limitation of this type of oils is their high viscosity and density, which challenge and complicate their exploitation and production. − Therefore, research on enhanced heavy oil recovery (EOR) methods is essential to increase the rate of heavy oil production on one hand and on the other hand to improve the quality of the obtained oil as well . Until now, water injection, chemical injection, gas, and thermal injection have been considered the main proposed methods in the field of EOR. ,,,− However, thermal methods are widely believed to be the most important enhanced oil recovery methods in terms of the produced oil quality and economic aspects. According to the literature, in situ combustion (ISC) as a subset of the thermal injection method has been always considered as an effective and appropriate technology, especially when it comes to heavy oil reservoir exploitation. − Basically, this technology consists mainly of air injection into the reservoir under high pressure to provide the necessary conditions for initiating oxidation reactions and promoting a stable combustion flame front for a better oil recovery factor.…”