疏水缔合聚合物增稠性能研究

在不同条件下 ,进行了疏水缔合聚合物增稠性能研究 ,结果表明疏水缔合聚合物在蒸馏水中 ,基本上看不到疏水缔合效果 ;疏水缔合聚合物的氯化钠溶液或氯化钙溶液 ,在缔合临界矿化度之前 ,随着溶液矿化度的增大 ,溶液粘度逐渐降低 ;在缔合临界矿化度之后 ,随着溶液矿化度的增大 ,溶液粘度迅速升高 ,达到极大值后又逐渐下降 ;油田采出污水中均存在较高含量的钙、镁等高价离子 ,疏水缔合聚合物在油田采出污水中 ,随着矿化度和温度的升高 ,疏水缔合增稠效果越差。认为目前把疏水缔合聚合物作为油田三次采油用耐温抗盐聚合物研制的主攻方向是不合适的

Study on the Thickening Behavior of Hydrophobically Associating Polymer

The thickening behavior of hydrophobically associating polymer was studied under different conditions. The distilled water solution of hydrophobically associating polymer hardly shows any hydrophobically associating phenomenon. For the sodium chloride solution or calcium chloride solution of hydrophobically associating polymer, the solution viscosity is reduced gradually with an increase of salinity of the solution until the critical salinity, and then the solution viscosity is increased rapidly with increasing of the salinity of the solution, and reduces gradually after a maximum. Oilfield produced waste water contains high contants of calcium and/or magnesium ions. For oilfield produced waste water solution of hydrophobically associating polymer, the hydrophobically associating thickening effect is decreased gradually with salinity and temperature increasing. Choosing hydrophobically associating polymer as the main research orientation is improper for oilfield EOR under hostile conditions at present.