Six Years of Paraffin Control and Enhanced Oil Recovery with the Microbial Product, Para-Bac™

Abstract The history of the first commercial microbial culture product for controlling paraffin accumulation in oil field production systems is described. This product is composed of a consortium of different, naturally occurring marine microorganisms that are selectively isolated and adapted to reduce the precipitation of high molecular weight alkanes. First used in 1986 in the Austin Chalk formation, the Para-Bac™ product line began as a single product for paraffin control. Now in use throughout the major producing formations of North America, the product line currently consists of over twelve different products directed at enhanced oil recovery, mitigation of sulfate-reducing bacteria, as well as control of scale, corrosion, and paraffin. A typical treatment is described including testing and monitoring protocols. Case histories are presented describing the use of the product on individual wells and extended formation treatments. New applications include use in various types of lift systems and in hydrogen sulfide control.