The Research On The Effect Of Reducing Substances And Dissolving Oxygen On The Properties Of Polymer Solution

With the continuous development of the industrial production scale of polymers, and theincreasingly tensing of low salinity water supply. Simply on abuse of water for preparation ofpolymer solution and the dilute polymer solution, it brings more and more prominent.First of all, this paper mainly studies the influence of ferrous ion, sulfide, sulfatereducing bacteria, on the properties of polymers. Only to understand these factors influenceon viscosity degree, to develop the ideal formula polymer compounding, so as to improvethe retention rate of viscosity of polymer solution can we ensure the polymer’s oildisplacement effect. Secondly, in the process of dilution of sewage polymer injection, thefield environmental conditions are different, there are reducing substances in the polymer’s oildisplacement system, this can lead to the differences of polymer solution viscosity of thewellhead samples. In addition, aeration can reduce waste water anaerobic bacteria andreducing substances, but the presence of oxygen, will also affect the stability of the polymerviscosity. At present, the Standard of the rational oxygen exposure in field is not unified,critical oxygen dissolved oxygen should be controlled in the range of what is not very clear.Through field experiments to determine a reasonable oxygen exposure to sewage, it hasreached the maximum retention of the polymer solution viscosity retention, this will play aguiding role in oilfield wastewater treatment.In order to solve these problems, this paper will carry out a series of studies theinfluences of various factors on the properties of polymers and the different sewageconfiguration of polymer’s properties.