...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy >Numerical analysis of heat mining and geological carbon sequestration in supercritical CO_2 circulating enhanced geothermal systems inlayed with complex discrete fracture networks
【24h】

Numerical analysis of heat mining and geological carbon sequestration in supercritical CO_2 circulating enhanced geothermal systems inlayed with complex discrete fracture networks

机译：超临界CO_2循环增强地热系统中热挖掘和地质碳封存的数值分析，复杂离散断裂网络

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Enhanced geothermal systems using supercritical CO2 (scCO(2)-EGS) as working fluid in place of water provides better heat extraction rate and sequestrates CO2 in the formations for reducing atmospheric CO2 content and the greenhouse effect. This paper proposed a numerical three-dimensional fully coupled thermo-hydro-mechanical (THM) model to simulate and evaluate the performances of heat mining and geological carbon sequestration in scCO(2)-EGS embedded in complex discrete fracture networks. The variable thermophysical properties of supercritical CO2 in response to pressure and temperature are taken into account during the reservoir development. Verification, sensitivity analysis, and convergence for the model are accomplished. The three-spot layout of the practical EGS project at Soultz-sous-Forets is then simulated using a stochastic DNF model under different operation pressures. The efficiencies and quantities of heat mining, carbon sequestration, and production of electric power for a period of 30 years have been studied and discussed. By verification against analytical solutions, the results demonstrate that the current nuermical model is effective to investigate the details of the multi-physical interactions in scCO(2)-EGS. (C) 2019 Published by Elsevier Ltd.
机译：使用超临界CO2（SCCO（2）-EGS）作为工作流体代替水的增强的地热系统提供了更好的热提取率，并在形成常压CO2含量和温室效果中进行更好的热提取率和螯合CO2。本文提出了一种数值三维完全耦合的热水机械（THM）模型，用于模拟和评估嵌入复杂的离散骨折网络中的SCCO（2）-EGS中的热挖掘和地质碳封存的性能。在储层发育期间考虑了响应于压力和温度的超临界CO2的可变热物理性质。实现了模型的验证，灵敏度分析和收敛。然后在不同的操作压力下使用随机DNF模型模拟Soultz-Sous-Forets的实用EGS项目的三点布局。研究和讨论了耗材，碳封存和电力耗尽和电力生产的效率和量。通过对分析解决方案的验证，结果表明，目前的肾功能模型可以有效地研究SCCO（2）-EGS中的多物理相互作用的细节。 （c）2019年由elestvier有限公司发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号