Methods of and formulations for reducing and inhibiting the growth of the concentration of microbes in water-based fluids and systems used with them

摘要

The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use an oxazolidine compound and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield and other industrial applications.

主权项

1. A synergistic formulation for reducing or inhibiting increase in the concentration of microbes in a water-based fluid or a system used with a water-based fluid, the formulation comprising
an oxazolidine compound and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine;wherein the ratio of hydroxymethyl-substituted phosphorus compound to oxazolidine compound is in the range of 1:1 to 1:5.