A Tentative Discussion on Dynamic Characteristics of the Low-Medium Temperature Geothermal Reservoir Field under the Condition of Exploitation-Reinjection

• 责任者：Zeng Meixiang (Tianjin Geothermal Exploration and Development Designing Institute ; Tianjin 300250 ; China) ; Tian Guanghui
• 刊名：Geology in China
• 出版年：2010
• 卷期：37(1)
• 关键词：地下热水 ; geothermal water ; 温度场 ; temperature field ; 天津 ; Tianjin
• 页码：p.191-197
• 图表：3 illus., 1 table, 15 refs.
• 分类号：1005
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

Tianjin, one of the four municipalities directly under the Central Government, has relatively high temperature field background. The monitoring data on the steady flow temperatures of the continuously explored well head demonstrate that the geothermal fluid temperature of each reservoir has not changed obviously along with the long-term exploitation. The results of the same well temperature testing during the reinjection period and the non-reinjection period show that, when the lower temperature original fluid is reinjected, the temperature of different depths is dropped by 0.1～0.76 ℃/a, but the temperature of the main exploitation section goes up again month by month during the non-reinjection period.