天津市地热资源可持续利用管理模型研究
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摘要
以天津潘庄凸起区为例,利用TOUGH2.0模拟软件建立了地热流体的数值模型,并利用2002年10月至2014年10月的水位动态资料进行了模型的识别与验证,针对18眼雾迷山组热储层地热井开发利用现状,以区域地热资源发挥最大的经济、环境和社会效益为目标函数,以区域水位降深最小、不超过限制水位埋深及满足实际需水量为约束条件,建立了区域地热资源优化管理模型,利用MATLAB软件求解模型得到了最优开采方案。通过与现状开采方案对比,说明所制定的优化开采方案合理。
Taken Panzhuang bulge of Tianjin as an example, TOUGH2.0 simulation software is used to establish the numerical model of geothermal fluid. The model validity is verified by the observation data of dynamic groundwater table in the period from Oct. 2002 to Oct. 2014. The regional geothermal resources optimization management model is also established, using MATLAB software to solve the model to get the optimal scheme on the base of the development status of 18 geothermal wells in Wumishan Group, the regional geothermal resources playing the biggest economic, environmental and social benefit as the objective function, regional water level drawdown minimum and not exceeding the limit water level depth, and meeting the actual demand for the constraint. Through comparing with the status quo of mining scheme, it is suggested that the optimization scheme is reasonable.
Taken Panzhuang bulge of Tianjin as an example, TOUGH2.0 simulation software is used to establish the numerical model of geothermal fluid. The model validity is verified by the observation data of dynamic groundwater table in the period from Oct. 2002 to Oct. 2014. The regional geothermal resources optimization management model is also established, using MATLAB software to solve the model to get the optimal scheme on the base of the development status of 18 geothermal wells in Wumishan Group, the regional geothermal resources playing the biggest economic, environmental and social benefit as the objective function, regional water level drawdown minimum and not exceeding the limit water level depth, and meeting the actual demand for the constraint. Through comparing with the status quo of mining scheme, it is suggested that the optimization scheme is reasonable.
引文
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[2]GB/T 11615-2010地热资源地质勘查规范[S].
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[2]GB/T 11615-2010地热资源地质勘查规范[S].
[3]胡燕,林黎,等.天津市地热资源可持续开发潜力评价报告[R].天津:天津地热勘查开发设计院,2015.
[4]宗振海,刘杰,等.2015年天津地热资源开发利用动态监测项目[R].天津:天津地热勘查开发设计院,2015.
[5]宁立波,董少刚,马传明,等.地下水数值模拟的理论与实践[M].武汉:中国地质大学出版社,2010.
[6]国家技术监督局.地下水资源管理模型工作要求(GB/T14497-93)[Z].1993.
[7]舒艳,王红旗,等.地下水管理模型研究进展[J].水文地质工程地质,2005,32(6):85-90.
[8]卢文喜.地下水系统的模拟预测和优化管理[M].北京:科学出版社,1999.
[9]王沫然.MATLAB与科学计算[M].北京:电子工业出版社,2005,第2版.
[10]尹尚先.地下水管理模型中响应函数解法探讨[J].水文地质工程地质,2001,29(2):33-35.