The high viscosity and low flow properties of some crude oil make them difficult to extract from reservoirs. This study investigated the mechanisms responsible for enhancement recovery using fractured dolomite core models. Bacterial strains, Nocardia cyriacigeorgica, Bacillus species, Pseudomonasputida, isolated Libyan fields, had ability biotransform heavy by reducing its converting heavier co...

in this paper, a simplified formulation for compositional reservoir simulator is presented. these types of simulators are used when inter-phase mass transfer depends on phase composition as well as pressure. the procedure for solving compositional model equations is completely described. for equilibrium calculation, property estimation peng robinson equation of state is used. this equation was ...

recently, a renewed interest arises in the application of nanotechnology for the upstream petroleum industry. in particular, adding nanoparticles to fluids may drastically benefit enhanced oil recovery and improve well drilling, by changing the properties of the fluid, rocks wettability alteration, advanced drag reduction, strengthening the sand consolidation, reducing the inter-facial tension and...

Chemical detection is still a continuous challenge when it comes to designing single-walled carbon nanotube (SWCNT) sensors with high selectivity, especially in complex chemical environments. A perfect example of such an environment would be in thermally oxidized soybean oil. At elevated temperatures, oil oxidizes through a series of chemical reactions which results in the formation of monoacyl...

BACKGROUND The intestinal chronic rejection (CR) is the major limitation to long-term survival of transplanted organs. This study aimed to investigate the interaction between intestinal microbiota and epithelial integrity in chronic rejection of intestinal transplantation, and to find out whether fish oil enhances recovery of intestinal microbiota and epithelial integrity. METHODS/PRINCIPAL F...

In this article, the conceptual design of biomass steam gasification (BSG) processes using raw oil palm (ROP) and torrefied oil palm (TOP) are examined in an Aspen Plus simulator. Through thermodynamic analysis, it is verified that the BSG process with torrefied feedstock can effectively enhance the hydrogen yield. When the heat recovery design is added into the BSG process, the system energeti...

Indonesia has a target of reducing 29% GHG emissions by 2030 (NDC, 2022), reaching net-zero in 2060 (LTS-LCCR, 2021), and obtaining 1 million BOPD oil production 12 BSCFD gas 2030. Oil companies have particular challenges to achieve the line with paying attention national energy security despite reserve declining since 1995 because maturity fields. In such case, enormous amount remaining place ...