基于GIS与GOCAD的天津双窑凸起构造区热储三维地质建模

因地制宜开发利用地热能已成为助力国家碳达峰、碳中和目标实现的有效途径。通过三维地质建模技术，实现热储空间结构透明化，有利于地热资源精细化管理，从而实现因地制宜开发。以天津双窑凸起构造区为例，通过地理信息系统(geographic information system, GIS)与地质对象计算机辅助设计软件(geology object computer aided design, GOCAD)相结合的方法，利用GIS对钻孔、平面地质图、地质剖面、地球物理资料、文献等多源数据资料综合分析，并对数据可信度进行优先级排序，利用GOCAD对构造、地层面和地质实体进行了构建，建立了热储三维地质模型。模型实现了对研究区新近系、奥陶系、寒武系、蓟县系等不同层位热储及其边界断裂的空间发育情况的三维刻画，研究结果可以为热储结构研究、地热资源评价和因地制宜开发提供技术支撑。

Tree-Dimensional geological modeling of thermal reservoir of Shuangyao uplift structural area in Tianjin based on GIS and GOCAD

The development and utilization of geothermal energy according to local conditions is considered to be an effective measure to help achieve the national peak carbon dioxide emission and carbon neutrality targets. The transparency of the geothermal reservoir space can be realized by tree-dimensional geological modeling technology. It is conductive to the fine management of geothermal resources to further realize the development according to local conditions. Taken Shuangyao uplift tectonic area in Tianjin as an example, the method was carried out by combining GIS and GOCAD softwaree. GIS was used to make comprehensive analysis of well data, planar geological map, geological section, geophysical data, literature and other multi-source data, and to prioritize data credibility. GOCAD was used to construct the structure, ground level and geological entity, and to establish the 3D geological model of geothermal reservoir, which described different geothermal reservoirs and in Neogene, Ordovician, Cambrian and Jixian systems and the space of boundary faults. The results provide technical support for the study of geothermal reservoir structure, the evaluation of geothermal resources and the development of geothermal resources according to local conditions.