【摘要】 本文引入了三个反映泥浆抗温性能的特征参数:泥浆耐热临界温度Tc、泥浆热失效速率指数G和泥浆热絮凝-聚结判别系数C。得到了泥浆动切力-温度关系式。这个关系式获得了27种泥浆的实验验证。根据以上三个抗温特征参数的数值范围,文中将各种高温泥浆的流变状态区分成三类:高温稳定态、高温絮凝态和高温聚结态。这个分类也有实验的验证,这些特征参数和关系式,可用于泥浆和泥浆处理剂抗温性能的预测、评价和研究。更多还原

【Abstract】 In the work, three characteristic parameters(critical temperature of heat resistance Tc,functionthermodecaying rate inder G, and thermal flocculation-coagulation determinant coefficient C) were proposed for characterizing the heat-resistance of water-based mud. An equation for temperature dependence of yield value was derived. This equation was well substantiated by experimental data on 27 kinds of muds. According to the value range of the three characteristic parameters,the rheological states of various high--temperature muds can be classified into the flowing three types,thermostable,thermoflocculated and thermocoagulated states. This classification was briefly illustrated by experimental data.更多还原