不同水质及双河注入清水中聚丙烯酰胺水解度的测量

Measurement of Hydrolytic Degree of Polyacrylamide 23 in Water of Different Quality and in the Injected Fresh Water in Shuanghe Oilfield

用盐酸滴定、PH计指示终点的方法测量了不同矿化度水质中的HPAM水解度，重点研究了双河注入清水中HPAM水解度的测量，建立了清水量和其消耗的盐酸体积的关系式，校正了碱性离子对水解度测量的干扰。该方法简单准确，不需要对样品进行渗析处理。实验证明．NaCl、CaCl_2对HPAM水解度的测量基本没有影响。

Hydrolytic degree of HPAM in water of different salinity were measured through diluted HCl titration and with a PH instrument measuring the endpoint. We focused on the measurement of hydrolytic degree of HPAM in the injected fresh water in Shuanghe oilfield, and formulated an equation between the weight of fresh water and thc volume of diluted HCl consumed, and corrected the interference with alkaline ions. This method is simple and accurate and there is no need to filtrate the samples. Experimental results show that NaCl and CaCl2 almost have no influences on the measurement of hydrolytic degree of HPAM.