论文部分内容阅读
模拟双河油田油藏条件,在70℃、80℃高温下,试验测定5种聚合物样品(分子量范围从1300万～2400万,水解度范围从1.8%～33%)在不同老化时间的粘度和水解度变化及溶液粘度随水解度的变化关系及规律;HPAM聚合物水解反应初期水解增粘速度快,当水解到一定程度后水解增粘减缓;油藏温度越高,聚合物水解速度越快;温度70℃油藏应选用水解度为20%～25%的中等水解度聚合物,80℃油藏条件选用水解度为15%～20%的低水解度聚合物。
To simulate the reservoir conditions in Shuanghe oilfield, the viscosity of the five polymer samples (molecular weight range from 13 million to 24 million, degree of hydrolysis from 1.8% to 33%) at different aging time was tested at 70 ℃ and 80 ℃. And the relationship between the degree of hydrolysis and the change of solution viscosity with the degree of hydrolysis. The HPAM polymer hydrolysis reaction initial hydrolysis fast, when the hydrolysis to a certain extent slowed the hydrolysis of the viscosity; the higher the reservoir temperature, the polymer hydrolysis rate The temperature of 70 ℃ reservoir should be used in the degree of hydrolysis of 20% to 25% of the moderate degree of hydrolysis of the polymer, 80 ℃ reservoir conditions selected degree of hydrolysis of 15% to 20% low degree of hydrolysis of the polymer.