Bromine-Based Biocides for Effective Microbiological Control in the Oil Field

摘要

Maintaining biological control of oilfield systems is critical. Microorganisms can cause well souring, equipment plugging, loss of formation injectivity, destruction of essential additives, and MIC (microbially induced corrosion). To minimize these problems, biocides are often used. Systems commonly treated with biocides include water injection, fracturing fluids, and hydrostatic test waters.In this paper we review the family of bromine-based biocides and discuss the basics of their chemistries and properties. We focus on a new stabilized bromine chloride-based biocide that has been demonstrated in a slickwater fracturing fluid field trial. Here, excellent microbiological control was maintained cost-effectively with relatively low biocide residuals.