Nmegbu, Chukwuma Godwin. J* and Dagde, Kenneth Kekpugile
Microbial Enhance Oil Recovery (MEOR) is a technology that involves the use of microorganisms to extract the remaining oil from the reservoir with an exceptionally low operating cost. In this study, mathematical models describing microbial transport, nutrients propagation and microbial growth in the porous media are presented. The reservoir was assumed to be a perfect rectangular shape and was sub-divided into five grid blocks. The bacteria and nutrients were injected into the first grid block for the period of 10 days before the well was shut-in. After the shut-in, the concentration of bacteria and nutrient consumption rate were calculated in the other grid blocks with time. The results obtained were compared with the plant data obtained from Garzan oil field. The resultsshowed that bacteria concentration increased as the nutrients were consumed with time. However, during the fourth time step (40 days) of the soaking process, severe bacteria decay occurred due to the lack of sufficient nutrients.
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