For reducing with suppress the method and formulation that in water-based fluid and the system that uses together with them, microorganism concn increases

For reducing with suppress the method and formulation that in water-based fluid and the system that uses together with them, microorganism concn increases

  • CN 101,754,685 B
  • Filed: 07/21/2008
  • Issued: 09/16/2015
  • Est. Priority Date: 07/24/2007
  • Status: Active Grant
First Claim
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1. reduce or suppress the method that in water-based fluid, microorganism concn increases, the method comprises:

  • Described water-based fluid is contacted with following compounds;

    oxazolidine compound, described in oxazolidine compound is selected from by 4,4-dimethyl azoles alkane and 7-ethyl-dicyclo the group of azoles alkane composition, and The phosphorus compound that methylol replaces, the phosphorus compound that described methylol replaces is sulfuric acid four (methylol) , Described in wherein in described water-based fluid the total concentration of the phosphorus compound that oxazolidine compound and described methylol replace is in the scope of 10ppm to 500ppm, and the phosphorus compound that replaces of described methylol and described oxazolidine compound exists with the weight rate in the scope of 5;

    1 to 1;

    10, Described water-based fluid is oil field or natural gas water in field or fluid, and hydrocarbon ils is gentle, paper pulp or paper water or slurries, cooling water, boiler water, industrial production water, ballast water, waste water, metal working fluid, water based slurry, ink or tape joint compound, water base household products or personal care product, latex, paint, coating, or the system used together with them, orDescribed water-based fluid is the gentle water in field in top or surperficial oil field, oil field or gas field functional fluid, such as drilling mud, completion or well workover water-based fluid, stimulation fluids, packing fluid, fracturing fluid, or the component of oil gas field functional fluid, metal working fluid, water based slurry, ink or tape joint compound, water base household products or personal care product, paper pulp or paper water base fluid, boiler water, industrial production water, ballast water, waste water, paint, latex, coating, or open system or water-based fluid wherein, orDescribed water-based fluid or system are water or the fluid of oil field or gas field water filling or production, the functional fluid used in oil field or gas field production operation, hydrocarbon ils or gas storage tank or hydrocarbon ils wherein or gas, degassing tower or water-based fluid wherein, transmission pipeline or water-based fluid wherein, paper pulp or sheet processing system or relative water-based fluid, ballast water, cooling water, metal working fluid and system, water purification system, waste water and treatment system, latex, paint, coating, water based slurry, ink or tape joint compound, water base household products or personal care product, or closed system or open system bottom or water-based fluid wherein, orDescribed water-based fluid is oil field or gas water or fracturing fluid, andDescribed microorganism is aerobic bacterium or anaerobic bacteria.

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