Enhancing heat production by managing heat and water flow in confined geothermal aquifers
Enhancing heat production by managing heat and water flow in confined geothermal aquifers
复制标题
通过管理承压地热含水层中的热量和水流来提高产热能力
DOI：
10.1016/j.renene.2019.03.147
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发表时间：
2019-11
期刊：
影响因子：
8.7
通讯作者：
Yong Wang
中科院分区：
文献类型：
--
作者：
Zhenjiao Jiang;Tianfu Xu;Yong Wang
双井系统被广泛用于开发地热能和保持含水层压力。布井是提高地热能产量的主要优化目标。然而，目前还缺乏既考虑区域地下水流又考虑密度驱动水流的威尔斯井选址的一般原则。研究了承压地热含水层中流体和热量运移的自然状态下的优化布井方案。流体和热量的自然状态的传输被重新审视，并分为四种类型：强迫对流，自由对流，混合对流和传导。在强制对流系统中，低温注水井布置在抽油井的下斜段，可以减少低温突破。在传导系统中，位于承压含水层较深部位的抽采井可产生较高的出流温度。在自然对流系统中，优选在含水层的较深区域注入低温水，在较浅区域提取段，因为注入的低温水可以向下移动，并且在加热后从生产井提取。这些结果可以帮助确定提取和注入段的相对位置，在封闭的地热含水层中，根据初始流体和热量的模式。(C)2019爱思唯尔有限公司版权所有。
Doublet-well systems are widely used to exploit geothermal energy and maintain aquifer pressure. Well placement is a primary optimization target to enhance the geothermal energy production. However, there is a lack of general principles to locate the wells considering both regional groundwater flow and density-driven flow. This study investigated the optimized well placement against the natural status of fluid and heat transport in the confined geothermal aquifer. The natural status of fluid and heat transport is revisited and categorized into four types: forced convection, free convection, mixed convection and conduction. In forced convection system the low-temperature water injection well located down gradient to the extraction well can reduce the low-temperature breakthrough. In conduction system, the extraction well located in the deeper zone of a confined aquifer can yield high outflow temperature. In free-convection system the low-temperature water injecting in the deeper zone in the aquifer and the extraction section in the shallower zone are preferred, as the injected low-temperature water can move downward, and after heated, is extracted from the production well. These results can help determine the relative positions of extraction and injection sections in the confined geothermal aquifer according to the initial fluid and heat patterns. (C) 2019 Elsevier Ltd. All rights reserved.
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影响因子：
3.2
作者：
Anthony J. Smith;J. Turner
通讯作者：
Anthony J. Smith;J. Turner
寒冷地区热电厂供热制冷耦合高温含水层蓄热系统数值模拟
影响因子：
9
作者：
Xiao Xiao;Jiang Zhenjiao;Owen Daniel;Schrank Christoph
通讯作者：
Schrank Christoph
影响因子：
2.8
作者：
R. Weijermars;A. V. Harmelen
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R. Weijermars;A. V. Harmelen
DOI：
10.1016/j.jrmge.2014.12.003
发表时间：
2015-06
影响因子：
7.3
作者：
Jianjun Ma
通讯作者：
Jianjun Ma
影响因子：
9
作者：
A. Yapparova;S. Matthäi;T. Driesner
通讯作者：
A. Yapparova;S. Matthäi;T. Driesner