A Study On The Interface Characteristics And Step-down Lfow Law Of Water-based Nanometer Polysilica Latex

At present, Toutai oil field commomnly exists a long-term high injection pressure ofWells,low injecting quantity, the single well injection pressure differences and other issues inthe water injection development process. Therefore, to improve the development of a kind oflow permeability oil field note the well water absorption capacity, improve low permeableoilfield step-down technological measures is particularly important.The technology ofincreasing injection effect of polysilicon is one of the important try of is one of nanometertechnology in oilfield development. Nano silicon polymer injection increase technology issuitable for low permeability reservoir water injection well decompression and augmentedinjection. In recent years, they have developed a good adsorption performance andhydrophobic membranes of the performance of water-based nanoparticles products, Therefore,the systematic evaluation of water-based nanometer polysilica latex evaluation ofperformance, and the study of the buck the feasibility of the note, mechanism and effect isbenifical to guide the technologies to improve the low permeable reservoirs on the applicationof water absorption capability.This paper mainly introduces the inorganic water as solvent, evaluation of polymericmaterial dispersion stability, compatibility. Study characteristics of viscosity ofpolymerization emulsion in different concentration and different temperature.Through theinterfacial tension and contact angle measurement, evaluat polymeric material on theinterfacial properties of impact.Experiment evaluate the effect of polymerization emulsion toprevent the expansion of clay minerals. And discuss the effects of acidity, alkalinity andsalinity on nano polymerization emulsion.Through the determination of relative wetting index, which represents polymer materialsflooding after stalling for time length on the rock to evaluate the effect of surface. Electronmicroscopy observate polymer materials before and after processing the rock face mineralform, analyse the material properties and adsorption of rock and the effect of surface area.Core displacement experiment research emulsion polymerization improve permeability,reduce injection pressure, increase the effect of injection, and observe the core entrance end.