多元醇钻井液高温流变性研究

Study on high temperature rheological properties of polyol drilling fluid

用 Fan- 5 0型高温高压流变仪对聚醚多元醇钻井液高温流变性进行了实验研究 ,对描述该钻井液高温流变性的流变模式进行了优选。实验结果表明 ,幂律模式和赫 -巴模式是描述该钻井液流变性能的较佳模式 ;随温度的升高 ,该钻井液流型指数 n、稠度系数 K、高剪切粘度 ηH和赫 -巴模式的屈服值

The rheological property of polyol drilling fluid was studied by using Fan^50 HTHP rheometer. The results show that Power-law model and Herschel-Bulkley model are suitable to describe the rheological behavior of this fluid. Moreover, the changing rules of different rheological parameters have been investigated.