Microbial enhanced oil recovery (MEOR) is an economical method used to improve the oil recovery from reservoirs. In the MEOR techniques, by applying different microorganisms, a variety of products such as bioacid, biogas, biosurfactant, and biopolymer are generated, among which biosurfactant, one of the important metabolites, is produced by bacteria. It is worthy to note that bacteria are suita...

Computational homogenization allows to let the macroscopic constitutive behavior of materials emerge from microscale simulations without loss generality with respect microstructure and response. Although computationally demanding, computational works very well for hardening response where stress strain fields are smooth. However, in case softening materials, when localization deformation takes ...

Abstract Holistic understanding of multiphase reactive flow mechanisms such as CO 2 dissolution, displacement, and snap-off events is vital for optimisation large-scale industrial operations like sequestration, enhanced oil recovery, geothermal energy. Recent advances in three-dimensional (3D) printing allow cheap fast manufacturing complex porosity models, which enable investigation specific p...

[1] The transport and deposition behavior of pathogenic Escherichia coli O157:H7 was studied under unfavorable electrostatic conditions in saturated quartz sands of various sizes (710, 360, 240, and 150 mm) and at several flow rates. At a given velocity, column effluent breakthrough values for E. coli tended to decrease in magnitude, and concentration curves became more asymmetric with decreasi...

Exopolymer-producing bacteria can be used to modify soil profiles for enhanced oil recovery or bioremediation. Understanding the mechanisms associated with biomass plug development and propagation is needed for successful application of this technology. These mechanisms were determined from packed-bed and micromodel experiments that simulate plugging in porous media. Leuconostoc mesenteroides w...

Carbon capture and subsequent storage (CCS) is identified as a necessity to achieve climate commitments. Permanent of carbon dioxide (CO 2 ) in subsurface saline aquifers or depleted oil gas reservoirs feasible, but large-scale implementation such has so far been slow. Although sandstone formations are currently most viable for CO sequestration, carbonates play an important role widespread CCS;...

Numerous mechanisms have been proposed to untangle the effect of a low concentration dissolved salts in water flooding medium. One potential mechanism for enhanced oil movement is with osmosis effect, however, process transport through phase, due salinity contrast, not fully understood. In our study, we used three aqueous solutions and two alkanes series microfluidic experiments hydrophobically...

Abstract In this study, we initially performed interfacial tension (IFT) tests to investigate the potential of using Persian Gulf seawater (PGSW) as smart water with different concentrations NaCl, KCl, MgCl 2 , CaCl and Na SO 4 . Next, for each salt, at concentration where IFT was minimum, conducted contact angle, zeta potential, micromodel flooding tests. The results showed that is minimized i...

Driven by the need to accelerate numerical simulations, use of machine learning techniques is rapidly growing in field computational solid mechanics. Their application especially advantageous concurrent multiscale finite element analysis (FE$^2$) due exceedingly high costs often associated with it and number similar micromechanical analyses involved. To tackle issue, using surrogate models appr...