INVESTIGATION OF HEAT EXTRACTION FROM SUPERCRITICAL GEOTHERMAL RESERVOIRS
INVESTIGATION OF HEAT EXTRACTION FROM SUPERCRITICAL GEOTHERMAL RESERVOIRS
复制标题
超临界地热储层抽热研究
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
K. Nakatsuka
中科院分区：
文献类型：
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作者：
T. Hashida;Kazuo Hayashi;H. Niitsuma;K. Matsuki;N. Tsuchiya;K. Nakatsuka
本文介绍了东北大学“用于下一代地热能提取的超临界地下锅炉设计方法研究（1997-2002）”新项目的概要。 “超临界地下锅炉”是指利用传递给超临界水的热能的地下换热系统。该项目的目标是发挥超临界水作为热提取流体的潜力，并开发超临界地热储层的设计方法，以提高地热能输出。选定的研究任务涉及（1）超临界储层形成过程的断裂力学研究，（2）超临界储层动力学（超临界水岩相互作用），（3）地下结构和应力监测方法，以及（4）热评估。简要描述了为该项目设置的研究任务，以及各个研究任务的最新初步结果。
This paper presents the outlines of a new project on "Investigation on Design Methodology of Supercritical Subsurface Boiler for Next Generation Geothermal Energy Extraction (1997-2002)" at Tohoku University. The “Supercritical Subsurface Boiler” refers to an underground heat exchanging system which takes advantage of the thermal energy transferred to supercritical water. The goal of the project is to establish the potential of supercritical water as heat extraction fluid, and to develop a design methodology for supercritical geothermal reservoirs with the objective of enhancing the geothermal energy output. The selected research tasks are concerned with (1) fracture mechanics study of the formation processes of supercritical reservoirs, (2) dynamics of supercritical reservoirs (supercritical waterrock interactions), (3) subsurface structure and stress monitoring method, and (4) thermal evaluation. Brief descriptions of the research tasks set up for the project are presented, together with recent preliminary results from the individual research tasks.