Antimicrobial compositions and method

Details Antimicrobial compositions and method Antimicrobial compositions and method

A - Human Necessities

01

N

167/23.3

A01N 41/02 (2006.01) A01N 25/34 (2006.01) A01N 35/08 (2006.01) A01N 43/00 (2006.01) C09K 8/54 (2006.01)

Patent

CA 1266433

Abstract Novel solid antibacterial compositions suitable for use in an oil or gas well comprise at least 50% by weight of a solid antibacterial nitroalkanol compound active against sulphate-reducing bacteria and a carrier, the composition having a density of at least 1.2 g/cm3 and being adapted to dissolve, disintegrate or disperse in water but not in oil. A preferred antimicrobial compound is bronopol (2-bromo-2-nitro- propane-1,3-diol). The antibacterial compositions are introduced into the aqueous layer in the sump as the bottom of the collecting system of the oil or gas well. This inhibits corrosion in the metal work of the oil or gas well, for example the pipe lines of the collecting system.

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