Research And Application Of The Technology Of Long-acting Scale Prevention

Oilfield China Huachi152near wellbore reservoir plug frequent periodic fouling, plugging in the workload measures, valid for a short, high capital investment.To solve this problem, the paper152from China, Xifeng, and other key reservoir properties and scaling mechanism blocks and other aspects of prescription anti-scaling system Qing-depth research, to optimize the construction process and construction parameters, and application of long-term comprehensive study of anti-Ching scale technology. Acidification of the technology integration, scale-based integrated two functions plugging technology, with clear scale, scale of the dual role, scale inhibitor of the active ingredient for the high concentration of complex viscosity, such as through the chelate effect, in reservoir can slowly release, to be made of dirt ion formation, to prevent scale formation, valid for the purpose of extending measures. A total of38tests, the average number of measures to extend the effective day one hundred and sixty days (36%of the test wells still remain in force), good effect, as I plant to further improve the long-term clear anti-scaling technology Longdong field basis.