直接测量地层深处温度的方法是钻孔测温。由于受到泥浆循环的影响,钻孔温度并不一定等于地层的真正温度。为了弄清钻孔温度和地层温度的关系,许多人做了大量的研究。1947年Bullard基于把钻孔看作线性热源的假设,推出了热平衡的计算公式。根据热平衡的要求,可以从数值上计算热平 The direct method of measuring the depth of the formation is borehole temperature measurement. Due to mud circulation, the borehole temperature does not necessarily equal the true temperature of the formation. In order to understand the relationship between borehole temperature and formation temperature, many people have done a lot of research. In 1947 Bullard introduced a heat balance calculation based on the assumption that boreholes are linear heat sources. Depending on the heat balance, the heat level can be numerically calculated