초록

There is provided a biocide composition for oil field fluid polymers and oil field water polymers. The composition comprises a biocide adsorbed on the surface of a solid, particulate adsorbent. The composition lessens personal and environmental contamination by spilled or splashed liquid biocides.

대표청구항 ▼

1. A method of inhibiting bacterial growth in oil field fluids comprising adding thereto an effective bacterial inhibiting amount of a biocide consisting essentially of a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, the weight ratio of the former to the latter

1. A method of inhibiting bacterial growth in oil field fluids comprising adding thereto an effective bacterial inhibiting amount of a biocide consisting essentially of a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, the weight ratio of the former to the latter being from about 94 percent to about 64 percent, adsorbed on a solid, particulate adsorbent. 2. Method of claim 1 wherein said fluid is a fracturing fluid. 3. Method of claim 1 wherein said fluid is a drilling fluid. 4. Method of claim 1 wherein said fluid is a water flood system. 5. Method of claim 1 wherein said fluid is an oil field water.