A chemical disinfection method flooding

The present invention provides a method of sterilizing chemical flooding. The method comprises the steps of: wastewater export pump distal end continuous addition of a chemical sterilant, sterilization of sewage using a physical sterilization in the front end of the dosing station point formulated surfactant; Pump distal outer sewage, physical sterilization rear end , the implantation station monitoring the content of sewage bacteria, when the bacteria concentration in the effluent rises, to stop the continuous adding of chemical fungicides, the outer water tank impulse transmission addition of a chemical sterilant; continue to monitor the water content of bacteria, when the bacteria concentration again when raised, it stops impact dosing, using continuous dosing; impact make continuous dosing with dosing alternately. The method of sterilization rate, inhibit bacterial growth for a long time, resistant bacteria can be avoided, and low cost, the solution of chemical flooding caused by high levels of bacteria reducing polymer viscosity, causing problems affect displacement efficiency declining production, it is possible to kill At the same time destroy the bacteria to maintain normal production of chemical flooding flooding.