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Understanding hydrothermal behavior of the Maneadero geothermal system, Ensenada, Baja California, Mexico
Geothermics ( IF 3.9 ) Pub Date : 2020-11-02 , DOI: 10.1016/j.geothermics.2020.101985
José Alonso Aguilar-Ojeda , José Rubén Campos-Gaytán , Almendra Villela , Claudia Soledad Herrera-Oliva , Jorge Ramírez-Hernández , Thomas Gunter Kretzschmar

A hydrogeological conceptual model has been developed that describes the geothermal system located at the Maneadero region in Ensenada, Baja California, Mexico. In addition, a two-dimensional steady state simulation of water flow and heat transfer of a model profile using COMSOL Multiphysics software is also presented. The proposed hydrogeological conceptual model considers that the old local anoxic subsurface seawater feeds the system, and a remnant magmatic intrusion in the surface from past volcanism at 2 km of depth works as heat source. The intersection between the south Agua Blanca Fault and the L3 alignment promote the fluids ascent to the submarine hydrothermal vent. The results of the simulation show a reservoir temperature of 164 °C and an affluent temperature of 105 °C, varying between 1 °C and 3 °C, respectively, with previous studies. Moreover, a geothermal potential of 0.48 MW was estimated for the simulated profile. The current policy of exploitation of geothermal resources in Mexico makes the development of these models particularly relevant, serving as a tool for their evaluation and management.



中文翻译:

了解墨西哥下加利福尼亚州恩塞纳达的Maneadero地热系统的热液行为

已开发出描述位于墨西哥下加利福尼亚恩塞纳达的Maneadero地区的地热系统的水文地质概念模型。此外,还介绍了使用COMSOL Multiphysics软件对模型轮廓的水流和热传递进行二维稳态仿真的过程。拟议的水文地质概念模型考虑到了旧的局部缺氧地下海水为该系统供水,而过去2公里深度的火山作用对地表的残余岩浆侵入作为热源。南阿瓜布朗卡断层和L3线之间的相交点促使流体上升到海底热液喷口。模拟结果显示,先前的研究表明,储层温度为164°C,流出温度为105°C,分别在1°C和3°C之间变化。此外,模拟剖面的地热潜力估计为0.48兆瓦。墨西哥现行的开采地热资源的政策使这些模型的开发特别有意义,成为其评估和管理的工具。

更新日期:2020-11-02
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