SZ36—1油田聚驱聚合物溶解速度的影响因素研究

Study on solubility of hydrophobically associate polymer in SZ36-1 offshore oilfield of Bohai Bay

为实现渤海绥中361油田规模注聚，要求将聚合物的溶解时间从120分钟缩短为40分钟。通过室内实验，研究了影响聚合物溶解速度的主要因素。针对渤海绥中36—1油田使用的APP4疏水缔合聚合物，通过母液粘度法和未溶物含量考察了温度、聚合物干粉粒径、矿化度、搅拌速度等因素对其溶解速度的影响，通过目标液粘度考察了溶解过程中各因素对分子结构的影响。实验结果表明在一定范围内增加溶解温度或者减小干粉粒径都能在对AP—P4聚合物目标溶液粘度影响不大的条件下，明显加快聚合物的溶解速度；矿化度和搅拌速度对AP—P4聚合物的溶解速度影响不大。研究证明温度和干粉粒径是影响疏水缔合聚合物AP—P4溶解速度的主要因素。

Aimed at the hydrophobically associate polymer AP-P4 in SZ36-1 offshore oilfield of Bohai Bay, the solubility law was conducted by viscosity means and undissolved solids content, and the effect of temperature, particle size, salinity and stirring speed was inspected. Studies show that the dissolution time is shortened with little viscosity loss of polymer solution when the particle size is smaller or the temperature is higher. Laboratory experiments indicate that particle size and temperature are main influencing factors for dissolution rate of hydrophobically associate polymer AP-P4.