A Study On Scaling Regulation Of Weak Base ASP In North 2 Weak

ASP is a new technology of alkali,surfactant and polymer three compounds proportionately composed of enhanced oil recovery,can greatly improve the oil recovery technology of three yuan compound drive.Including alkali technology three yuan compound drive three yuan(NaOH)and alkaline(composite flooding Na2CO3)three element compound,the basic three Yuan compound drive technology has more advantages,base three yuan compound drive to become flooding technology has more development prospects.However,due to weak by scaling problems three yuan compound drive,thus affecting its application.Using the method of detection equipment and theory,on the north two West End production and injection end scale sample analysis,comprehensive research and analysis in the area of basic three element composite scaling law and its influencing factors.Through sampling observation,data analysis and mining injection end end scaling respectively.The crystallization kinetics from thermodynamics,fouling mechanism analysis of carbonate.Fluid dynamics,through the experimental study of polymer,alkali,surfactant,suspended solids,temperature,calcium ion concentration and different factors on the preparation of water injection end system scaling.The effects of detection and analysis of alkali concentration,calcium ion concentration,the concentration of carbonate ion and silicon aluminum.The ion concentration on the recovery effect of end system scaling,so as to analyze the scaling law of three yuan compound drive on the north two basic areas of the West.Through the comparison of various methods of descaling descaling effect,found that the effects of chemical detergent cleaning method.The most significant were selected through experiments on the chemical scale inhibitor,the result is two three five ethylene amine methylene phosphonic acid(DTPMPA)and edtmps(EDTMPS)in accordance with the proportion of 1: 1 compound of calcium the scale anti scaling effect than other anti fouling agent,two hydroxy ethylidene phosphonic acid(HEDP)than other organic acids on silica scale anti fouling effect is good.