Mathematical modeling of the soaking period in a microbial enhanced oil recovery application

In this study, experimental conditions of the microbial enhanced oil recovery (MEOR) technique applied for Garzan oil (26degrees API; southeast Turkey) were utilized in a mathematical model that describes the transport of bacteria and its nutrients by convective and dispersive forces, including bacterial decay and growth. From the results of the variation of bacterial concentration with distance, it was observed that the bacterial concentration increased as the nutrients were consumed with time. Although some bacteria died during the experiments, this did not slow down the overall increase in bacterial population significantly at earlier times. However, in the later periods of the soaking process, severe bacterial decay occurred due to the lack of nutrients. The pressure behavior in the model during the shut-in period was also calculated and agreed well with the experimental results.


Smart water displacement an alternative enhanced oil recovery technique
Polat, Can; Parlaktuna, Mahmut; Saner, Salih; Department of Petroleum and Natural Gas Engineering (2015)
The aim of this study is to investigate the effect of smart water displacement on oil recovery. The brine samples were prepared considering the characteristics of the samples proved to be effective in oil recovery. The effect of these brine samples on rock wettability was observed using Modified Flotation Test (MFT) procedure. The effect of changing brine salinity on interfacial tension between brine and oil samples was observed using interfacial tension meter and ring tensiometer. Liquids used in spontaneo...
Application of predictive Enhanced Oil Recovery models on a very heavy oil field
Kök, Mustafa Verşan; Akın, Serhat (Informa UK Limited, 2001-12-01)
In this study, several predictive enhanced oil recovery (EOR) techniques are used to evaluate potential thermal oil recovery techniques that could be applied on a very heavy oil (10-12°API) field located in Southeast Turkey. Two of the EOR techniques were found to be applicable after the screening process: in situ combustion and steam injection. Sensitivity of the processes to several operating parameters, such as steam injection rate, air injection rate, and steam quality, were established. It was observed...
Random walk particle modelling of polymer injection using matlab reservoir simulation toolbox
Mamak, Gökhan; Durgut, İsmail; Department of Petroleum and Natural Gas Engineering (2017)
Enhanced oil recovery (EOR) is essential to increase the maximum recoverable oil by natural means of production. Having chosen an EOR method, the effectiveness of the method should be analyzed before applying to a reservoir since the methods are generally costly. Polymer injection is a chemical EOR process, where the injected polymer with water increases the water viscosity, and help increasing the sweep efficiency in the reservoir. In order to model the effects of polymer injection, the random-walk particl...
Bacteria for improvement of oil recovery: A laboratory study
Behlulgil, K; Mehmetoğlu, Mustafa Tanju (2002-05-01)
In microbial enhanced oil recovery (MEOR) technique, microorganisms and/or their products (gases, chemicals) are used in the enhancement of oil recovery. In the present study, MEOR is tested for Garzan (26degrees API) crude oil, produced from Southeast Turkey. This work consists of shut-in pressure tests and microbial water flooding experiments. In shut-in pressure tests, the oil is placed in a stainless steel cell and a certain amount of microbial solution (Clostridium acetobutylicum) is introduced. During...
Application of X-ray CT imaging as an alternative tool for cloud point determination
Karacan, C.Ö.; Demiral, M.R.B.; Kök, Mustafa Verşan (2000-01-01)
This study explains the use of X-Ray CT (computerized tomography) as an alternative tool for cloud point determination of crude oils and dark fuel oils by showing the results for artificially prepared transparent oils. The technique is fully computerized and data gathering and analysis are achieved by taking the advantage of the processing of the CT images. In the study, the cloud points of diesel oil samples containing 5%, 10% and 15% additional wax were determined with this new technique. Results show tha...
Citation Formats
K. Behlulgil and M. T. Mehmetoğlu, “Mathematical modeling of the soaking period in a microbial enhanced oil recovery application,” ENERGY SOURCES, pp. 871–877, 2003, Accessed: 00, 2020. [Online]. Available: