雄县地热田示踪试验的解释及分析  

Interpretation and Analysis of Tracer Test in Xiongxian Geothermal Field

作　　者：庞菊梅[1] 王树芳[2] 孙彩霞 高小荣[4] 刘久荣[2] 

机构地区：[1]首都师范大学,北京100048 [2]北京市水文地质工程地质大队,北京100195 [3]陕西绿源地热能源开发有限公司,咸阳712000 [4]中国石化集团新星石油公司,北京100083

出　　处：《城市地质》2011年第2期12-17,共6页Urban Geology

摘　　要：雄县地热田在2009-2010年地热回灌期间开展了示踪试验。示踪试验过程中没有从生产井和观测井群所取水样中检测到示踪剂,但是基于生产井和回灌井之间流动通道的若干假设,对示踪剂回收的浓度及峰值的出现时间进行了模拟预测,对通道的流体流速进行了估计。并且运用水平裂隙介质模型对由于长期地热采暖尾水回灌可能引起的热储冷却进行了预测,为回灌井和生产井的合理井间距的选择,提供一定的依据。A tracer test was conducted during the reinjection experiment in the Xiongxian geothermal field from 2009 to 2010. No tracer was detected in the water samples collected from production and observation wells during the test. But based on careful assumptions of specific flow channels connecting the injection and production wells, the concentration of tracer recovery, the peak time and the velocity of fluid flow in the flowchannel, the data of the tracer test are simulated. In addition, a horizontal fractured model was used to predict the possible cooling of the geothermal reservoir due to reinjection of tail water of the geothermal heating system, so as to choose the reasonable distance between reinjection and production wells safely.

关 键 词：地热回灌 示踪试验 热储冷却 模拟预测 

分 类 号：P314[天文地球—固体地球物理学]