Inverse modeling of EGS heat reservoir based on micro-seismic data and analysis of its heat recovery performance

LI Tingliang; HUANG Wenbo; CAO Wenjiong; JIANG Fangming

doi:10.11949/j.issn.0438-1157.20180769

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Inverse modeling of EGS heat reservoir based on micro-seismic data and analysis of its heat recovery performance

更新时间：2025-12-10

- Inverse modeling of EGS heat reservoir based on micro-seismic data and analysis of its heat recovery performance
- CIESC Journal Issue 12, Pages: 5001-5010(2018)
- 作者机构：
  
  1. 中国科学院广州能源研究所先进能源系统实验室,广东,广州,510640
  2. 中国科学院可再生能源重点实验室,广东,广州,510640
  3. 广东省新能源和可再生能源研究开发与应用重点实验室,广东,广州,510640
  4. 中国科学院大学,北京,100049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180769
  CLC： K521
- Online First：05 December 2018，
  
  Published：05 December 2018
- 稿件说明：
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LI Tingliang, HUANG Wenbo, CAO Wenjiong, et al. Inverse modeling of EGS heat reservoir based on micro-seismic data and analysis of its heat recovery performance[J]. CIESC Journal, 2018, (12): 5001-5010.
DOI：

LI Tingliang, HUANG Wenbo, CAO Wenjiong, et al. Inverse modeling of EGS heat reservoir based on micro-seismic data and analysis of its heat recovery performance[J]. CIESC Journal, 2018, (12): 5001-5010. DOI： 10.11949/j.issn.0438-1157.20180769.

摘要

人工热储的特性对增强型地热系统（EGS）的性能具有决定性影响，正确还原人工热储的结构特征对EGS实际工程具有重要意义。结合Habanero EGS地质、微震数据等信息，重建出热储的渗透率与孔隙率的空间分布，进一步采用自主开发的三维动态模拟软件，对热储中的渗流场、温度场和EGS的采热曲线进行数值模拟，并将其结果与分块均质热储EGS进行比较，当流体循环流量为15 kg/s，EGS运行到第15年时，非均质热储EGS的采出温度比分块均质热储EGS低9.3℃，前者的累积热采出量比后者低3.7%，热储的非均质性会导致EGS采热性能显著下降。

Abstract

The characteristics of artificial heat reservoir have a decisive influence on the performance of enhanced geothermal systems (EGS). Accurately modeling of the structural characteristics of artificial heat reservoir is of great significance to the actual engineering of EGS. In this paper

we combine Habanero EGS geological information

micro-seismic data and other information

and reconstruct the spatial distribution of heat reservoir permeability and porosity. Based on the reconstructed heat reservoir

with an in-house three-dimensional dynamic simulation software developed previously

we further simulate the EGS heat extraction process and obtain the seepage field

temperature field and EGS heat extraction curve. When the fluid circulation rate is 15 kg/s

the production temperature of EGS with heterogeneous heat reservoir is 9.3℃ lower than that of the EGS with regional-homogeneous reservoir after 15 years of operation

and the total extracted heat of the former is 3.7% lower than that of the latter. These results reveal that the heterogeneity of the heat reservoir causes a significant decrease in the heat extraction performance of EGS.

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