用旋转粘度计法评定蜡晶改性剂的作用效果

Evaluating the Action and Results of Wax Crystals Modifying Agent by Using Rotary Viscosimeter Method

用旋转粘度计来评定蜡晶改性剂作用效果，可用少量的油样，在一个降温周期测定出原油样品（未加剂原油或加蜡晶改性剂原油）的粘度、屈服值和结蜡量，从而可计算出蜡晶改性剂的降粘率、屈服值下降率和防蜡率。在原油集输系统的设计中，可先用旋转粘度计法进行探索性试验，初步确定出工艺参数和筛选出合适的蜡晶改性剂，最终用环道石蜡沉积测试仪进行确认性试验，这样可大大节省原油集输系统设计的费用和加快设计进度。

Using small amount of oil sample , in a temperature - decreasing period the viscosity, yield value and wax precipitating amount of crude sample (adding or unadding wax crystals modifying agent), so that the viscosity-decreasing rate of the wax crystals modifying agent and the decreasing rate and the preventing wax preciptation rate of the yield value can be calculated.