Analysis of soil structure effects based on geothermal deveplopment

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Ge, Yan^1^2 ; Wu, Ye^3

No.2. Institute of Geo-Environment Survey of Henan, Zhengzhou

450053, China^1

Henan Engineering Research Center of Deep Exploration, Zhengzhou

450053, China^2

Henan University of Engineering, Zhengzhou

451191, China^3

关键词: Analysis of soils;    Continuous development;    Control variable;    Development and utilizations;    Geothermal resources;    Insulation materials;    Single-factor experiments;    Temperature changes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/3/032089/pdf
DOI  :  10.1088/1755-1315/267/3/032089

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

With the deepening of people's understanding of new energy, geothermal has become more and more "hot." The abundant geothermal resources of Henan Province will be an important resource pillar for the future economic growth of the Central Plains[1]. However, the vigorous development and utilization of geothermal resources will largely affect the soil structure. Through the data analysis of Luoyang A area, the influence of temperature change on soil structure was studied by using control variables and single factor experiment. The results showed that: with the continuous development of geothermal resources in Luoyang A area, the total amount of microbes, organic carbon and total nitrogen in the soil would chang with the increase of temperature.Among them, the number of microorganisms growed faster with the increase of temperature and reached the highest value up to 40 °C. As the temperature continuing to rise, the number of microbes growed slowly or on a downward trend.In order to avoid the influence of temperature changes on the soil structure, it is recommended to put insulation materials around the wellhead and the reservoir to prevent the lowest loss temperature from exceeding 30 °C or 3 wells alternating every other quarter[2].