RT Journal Article ID 55b121a1260f7bbb A1 Xiu, Jianlong A1 Wang, Tianyuan A1 Guo, Ying A1 Cui, Qingfeng A1 Huang, Lixin A1 Ma, Yuandong A1 Zhu, Weiyao T1 A MATHEMATICAL MODEL OF MICROBIAL ENHANCED OIL RECOVERY IN POROUS MEDIA JF Special Topics & Reviews in Porous Media: An International Journal JO STRPM YR 2017 FD 2018-02-07 VO 8 IS 4 SP 263 OP 272 K1 microbial flooding K1 enhanced oil recovery K1 reversible adsorption K1 irreversible adsorption K1 mathematical model AB The microbial enhanced oil recovery (MEOR) mathematical model, which could accurately describe the growth, migration, and recovery of microorganisms in porous media, provided guidance for the preparation and prediction of field tests. Based on the analysis of microbial migration in porous media, a three-dimensional, three-phase, nine-component mathematical model was developed to reflect the process of microbial flooding. The components were related to oil, gas, water, microbial 1 (suspension phase), microbial 2 (reversible adsorption phase), microbial 3 (irreversible adsorption phase), nutrient 1 (suspension phase), nutrient 2 (adsorption phase), and the electron acceptor. The model described the adsorption and reaction kinetics of each component in porous media, described the reversible and irreversible adsorption process of bacteria, and the reaction kinetics equation took into account the effects of nutrients and oxygen. Microorganism 1 exists in the water phase, whose growth is limited by nutrient 1, and microorganisms 2 and 3 are adsorbed on the rock surface, whose growth are limited by nutrient 2. The microorganisms' effect on fluid properties in the reservoir was analyzed in the model, and the key parameters that played an important role in enhancing oil recovery were also elaborated. In the end, the method of obtaining the model parameters and the solving method of the model equations are shown in the paper. PB Begell House LK http://dl.begellhouse.com/journals/3d21681c18f5b5e7,19a20ad70458ce39,55b121a1260f7bbb.html