地学前缘 ›› 2020, Vol. 27 ›› Issue (1): 170-177.DOI: 10.13745/j.esf.2020.1.18

• 地热开发利用模拟和实践 • 上一篇    下一篇

地热能可持续开发利用的数值模拟软件OpenGeoSys:原理与应用

孔彦龙,黄永辉,郑天元,陆仁超,潘晟,邵亥冰,庞忠和   

  1. 1. 中国科学院 地质与地球物理研究所; 中国科学院页岩气与地质工程重点实验室, 北京 100029
    2. 中国科学院 地球科学研究院, 北京 100029
    3. 中国科学院大学, 北京 100049
    4. 中国海洋大学, 山东 青岛 266100
    5. 德国亥姆霍兹环境研究中心, 萨克森州 莱比锡 04318
  • 收稿日期:2019-03-31 修回日期:2019-12-30 出版日期:2020-01-20 发布日期:2020-01-20
  • 作者简介:孔彦龙(1987—),男,副研究员,主要从事示踪水文地质与热储工程研究。E-mail:ylkong@mail.iggcas.ac.cn
  • 基金资助:

    国家重点研发计划项目(2018YFB1501801)

Principle and application of OpenGeoSys for geothermal energy sustainable utilization

KONG Yanlong,HUANG Yonghui,ZHENG Tianyuan,LU Renchao,PAN Sheng,SHAO Haibing,PANG Zhonghe   

  1. 1. Institute of Geology and Geophysics, Chinese Academy of Sciences; Key Laboratory of Shale Gas and Geoengineering, Chinese Academy of Science, Beijing 100029, China
    2. Institutions of Earth Science, Chinese Academy of Sciences, Beijing 100029, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China
    4. Ocean University of China, Qingdao 266100, China
    5. Helmholtz Centre for Environmental ResearchUFZ, Leipzig 04318, Germany
  • Received:2019-03-31 Revised:2019-12-30 Online:2020-01-20 Published:2020-01-20

摘要:

地热能规模化利用的可持续开发,通常需要建立数学模型,以实现定量管理和预测。文章评述OpenGeoSys(OGS)数值模拟软件及其在地热资源开发利用过程中的应用算例。OGS是一款基于有限元的免费开源软件,它可处理与地热能开发相关的水流场温度场力学场化学场等多场耦合过程。OGS已应用在国内外多个地热场地,文中着重介绍它在浅层地热能的流体温度变化预测、水热型地热能开发过程中的采灌井距优化、结垢机理和干热岩开发过程中的渗透性演化等方面的应用算例,为地热能的开发提供计算手段和参考。

关键词: OpenGeoSys, 多场耦合, 地热能, 数值模拟

Abstract:

Numerical simulation is very useful in utilizing large scale geothermal energy, predicting reservoir response and optimizing exploitation procedure. Here we describe the OpenGeoSys (OGS) software used to simulate the complex processes in geoscience and hydrological applications, focusing on its application in geothermal energy utilization. OGS is based on an objectoriented finite element method concept and can deal with numerical simulation of thermohydromechanicalchemical processes in porous media. Case studies related to shallow geothermal energy (temperature and pressure prediction), hydrothermal energy (optimization on the distance between production well and reinjection well, scaling) and hot dry rock (hydraulic fracturing, permeability evolution) are shown with the purpose to help managing geothermal energy utilization.

Key words: OGS, multifields coupling, geothermal energy, numerical simulation

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