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根据钻井测温数据及前人研究结果,编制了四川盆地1000,2000,3000和4000m四个特定深度的等温线图,以及中、新生界陆相地层地温梯度等值线图。通过对该区岩心放射性含量数据的搜集和样品的测定、地层生热率的统计和热导率的估计,并且辅助数值模拟计算,认识到四川盆地区域地温场的特征与本区区域构造特征相关,除此以外,个别局部地温较高地段可能还与基底中放射性元素的局部富集有关。
According to the data of drilling temperature and previous research results, four isothermal maps of 1000, 2000, 3000 and 4000 m in Sichuan Basin and the contour maps of geothermal gradients in the Meso-Cenozoic continental strata are compiled. Through the collection of core radioactive content data, the determination of samples, the statistics of formation heat rate and the estimation of thermal conductivity and the numerical simulation calculation, it is concluded that the geothermal field in the Sichuan Basin is related to the regional tectonic features , In addition, the individual local high ground temperature may also be related to the local enrichment of radioactive elements in the substrate.