A S Harrison & Co offers a range of biocides.


Cost-effective, caustic-based, broad-spectrum biocide used for long-term bacteria control in the reservoir


Fast-acting, non-oxidizing biocide that has an outstanding environmental properties because it is non-persistent and degrades to naturally-occurring products. 2,2-dibromo-3-nitrilopropionamide or DBNPA offers an efficient, cost-effective biocidal control at low concentrations, but it provides broad-spectrum control of bacteria.

Glut/Quat Blends

Glut/Quat blends designed and optimised to provide a high level of broad spectrum antimicrobial activity against aerobic and anaerobic bacteria including acid-producing bacteria (APB) and sulfate-reducing bacteria (SRB). The combination of glutaraldehyde and QAC’s has been shown to be more effective in controlling sulfate-reducing bacteria than the individual components.

Glutaraldehyde Based

Glutaraldehyde based biocides that are highly effective against aerobes, SRBs, APBs. Effective in hard waters or brines, and functions as a biocide over a broad pH range and has rapid efficacy at neutral to alkaline pH’s. Glutaraldehyde is non-ionic so it won’t interfere with the action of demulsifiers, corrosion inhibitors, or surfactants. Penetrating ability along with its long-term stability in oilfield waters, makes it an effective product to control established biofilms in pipelines and prevents the formation of new ones. Water Flood Injection Water, Drilling, Completion, Workover, and Fracturing Fluids, Produced waters, Oil and Gas Transmission lines, Gas storage wells and hydrocobon storage facilities, Production Wells.

Broad spectrum

Broad spectrum biocide based on tetrakis (hydroxymethyl) phosphonium sulfate developed to inhibit the growth of bacteria. Effective in both acid and alkaline environments. Especially effective against sulfate-reducing bacteria (SRB) that can cause H2S souring. Completely miscible with water and easily dispersed. This product is added during pumping.

Blend of Hydrogen Peroxide/Peroxyacetic

Blend of Hydrogen Peroxide/Peroxyacetic Acid which effectively controls and helps eliminate biofilm; improves flow assurance by eliminating blockage from biological fouling; Very safe to handle.


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