A reasonable estimation of the geothermal potential of any geothermal system depends on the reliable knowledge of its geological, geophysical and geochemical parameters. The heat flow is an important geophysical criterion used to describe the subsurface temperature profiles in prospecting areas. These profiles are helpful tools to locate high temperatures and thermal disturbances (heating or cooling) that could indicate permeable or fractured zones in the subsurface. A good area to apply this approach is the La Primavera caldera (LP), México, with an estimated geothermal potential high enough to install a 75 MW power plant. A conductive model of La Primavera would provide vital information to understand the heat flow during future work on and eventual exploitation of the geothermal field. We developed a 2D conceptualized numerical model of La Primavera based on the heat transfer equations. Then, we applied the Tri-Diagonal Matrix Algorithm (TDMA) method to discretize the equations. The resulting model described the temperature distribution as a function of depth in 10 geothermal wellbores drilled within an area of 4 km² inside the caldera. The lithology of these exploration wellbores (subsurface stratigraphy) was used to correlate the proposed 2D geological profiles and to construct the model geometry and thermal conductivity at depth. The temperature profiles were used as boundary conditions to calibrate and validate the numerical model. The results indicate that estimated temperatures (450-500 °C) occur at depths of 3 km hosted within the granitic basement beneath La Primavera. These high temperatures may be linked to remnant intrusive bodies located in depth. These results suggest that La Primavera is a promising target for future geothermal exploitation.

对任何地热系统的地热潜力的合理估计取决于对其地质、地球物理和地球化学参数的可靠了解。热流是用于描述勘探区地下温度剖面的重要地球物理标准。这些剖面是定位高温和热扰动（加热或冷却）的有用工具，可以指示地下的渗透区或裂缝区。应用这种方法的一个很好的地区是墨西哥的 La Primavera 火山口 (LP)，估计其地热潜力足以安装 75 兆瓦的发电厂。La Primavera 的传导模型将为了解地热田未来工作和最终开发过程中的热流提供重要信息。我们基于传热方程开发了 La Primavera 的二维概念化数值模型。然后，我们应用三对角矩阵算法 (TDMA) 方法来离散化方程。所得模型将温度分布描述为在 4 公里范围内钻探的 10 个地热井眼中的深度函数²火山口内。这些勘探井筒的岩性（地下地层）用于关联所提议的二维地质剖面并构建模型几何形状和深度热导率。温度分布被用作边界条件来校准和验证数值模型。结果表明，估计温度 (450-500 °C) 发生在 La Primavera 下方花岗岩基底内 3 公里深处。这些高温可能与位于深处的残余侵入体有关。这些结果表明 La Primavera 是未来地热开发的一个有希望的目标。