R.S. Bryant

TL;DR: In this article, a method for microbial enhanced oil recovery is provided, wherein a combination of microorganisms is empirically formulated based on survivability under reservoir conditions and oil recovery efficiency, such that injection of the microbial combination may be made, in the presence of essentially only nutrient solution, directly into an injection well of an oil bearing reservoir having oil present at waterflood residual oil saturation concentration.

Abstract: L'utilisation de traitements microbiens, par injection de flux d'eau porteurs de microorganismes et de solutions nutritives dans le reservoir, est potentiellement une methode peu onereuse de recuperation assistee du petrole dans le cas de champs marginaux. Les microorganismes peuvent ainsi causer l'emulsion eau/petrole, reduire la viscosite des huiles lourdes et augmenter la pression dans le reservoir par production de CO 2

TL;DR: The use of microorganisms to enhance oil recovery has become a technically feasible technology for production from stripper wells (those that produce less than 10 B/D (1.6 m/sup 3/d)). As a result of microbial growth and the production of CO/sub 2/ and/or chemicals, oil recovery can be effectively increased in certain reservoirs with temperatures and salinities hospitable to microorganisms.

TL;DR: In this paper, the authors presented simulation and experimental results on the transport of microbes and nutrients in one-dimensional cores and the development of a three-dimensional, three-phase, multiple-component numerical model to describe the microbial transport phenomena in porous media is described.

TL;DR: In this article, the feasibility of improving oil recovery and the economics of microbial enhanced waterflooding in mature oil wells in the United States were evaluated by two field pilots, and a specific microbial formulation was selected that was compatible with the reservoir's environment.