CAJ | 학술논문

为研究大庆油田聚合物驱油过程中等黏度含聚污水配制聚合物体系的可行性，通过配制等黏度的驱油体系，对体系的黏度和抗剪切性能、黏弹性、稳定性、分子线团尺寸等性能参数进行测定，在此基础上进行了注入能力和驱油效果评价。结果表明，相同黏度下聚合物性能、注入能力和驱油效果随着体系质量浓度的增加而变好；含聚污水配制稀释聚合物在大庆油田具有广泛的适用性，针对大庆油田二类油层，通过计算实验时间减少比例、采收率提升比例、聚合物用量增量得到龙虎泡清水配制，含聚430 mg/L 污水稀释聚合物体系(qw3体系)具有良好的驱油能力。
위연구대경유전취합물구유과정중등점도함취오수배제취합물체계적가행성，통과배제등점도적구유체계，대체계적점도화항전절성능、점탄성、은정성、분자선단척촌등성능삼수진행측정，재차기출상진행료주입능력화구유효과평개。결과표명，상동점도하취합물성능、주입능력화구유효과수착체계질량농도적증가이변호；함취오수배제희석취합물재대경유전구유엄범적괄용성，침대대경유전이류유층，통과계산실험시간감소비례、채수솔제승비례、취합물용량증량득도룡호포청수배제，함취430 mg/L 오수희석취합물체계(qw3체계)구유량호적구유능력。
The feasibility of preparation of the same viscosity dilute polymer systems with polymer-bearing wastewaterwas studied in the process of polymer flooding in Daqing oilfield.The concentration of oil displacement system,the system viscosity,shear resistance,viscoelasticity,stability and molecular thread size were measured on the basis of the inj ection capacity and oil displacement effect assessment.The results showed that under the same viscosity polymer performance, inj ection capacity and oil displacement effect were increased with the increase of concentration of system.Using wastewater containing polymer in Daqing oilfield to prepare diluted polymer solution had wide applicability.In view of the Senior Reservoir of Daqing oilfield,through calculating the experimental time reduction ratio,recovery factor improvement ratio,polymer dosage incremental,dilute polymer system (qw3 system)containing poly 430 mg/L was obtained with Longhu Lake water, which can realize comprehensive benefits.