A combination biocide Glutaraldehyde or OPA , quaternary phosphonium biocide preferably TTPC , alcohol preferably isopropyl alcohol , and functional excipients for the oil and gas recovery industry.
The functional excipients for the oil and gas recovery industry are a cellulose type proppant, a poloxamer wetting agent, a friction-reducing pluronic block copolymer, a drag reducing agent such as polyethylene oxide, and a flocculating agent. Both will produce an inherent bacteriostatic effect and lower surface tension and thus aids in the spread of the TTPC on the biofilm covered surface where it is readily absorbed by the negative surfaces of proteins and bacteria. It thus serves as a binding agent between the TTPC and the application surface.
The foregoing constituents are combined in preferred concentrations within acceptable ranges to provide a synergistic biological chemical complementarity system. The present invention relates to chemical disinfection and sanitizing and, more particularly, to an improved biocidal aldehyde composition particularly suited for secondary oil and gas recovery.
The purpose of disinfection is to reduce microbial contamination to an innocuous level. There is a widespread need for effective antimicrobials across diverse industries, including for oil and gas recovery for treatment, penetration and removal of biofilm.
Without a biocide, microorganism growth leads to biofilm formation, which contributes to corrosion, contamination of oil and gas, and degradation of drilling muds and fracturing. There are a few existing commercial biocides that purport to solve the need. It requires time and temperature control residence time of minutes for disinfection, and controlled temperature of from 20 C. Glutaraldehyde requires activation and dating to make it useful. Thus, proper usage entails a three step procedure and meticulous record-keeping regarding date of activation.
