可再生能源2014，Vol.32Issue(6)：829-835,7.
增强型地热系统垂直裂隙热储热开采过程数值模拟
Numerical simulation of vertical fractures heat mining process of the enhanced geothermal system
摘要
Abstract
As the most effective method to extract deep geothermal resources,enhanced geothermal systems (EGS) has been a hot spot of academic research all over the world.It is of vital significance to make a full understanding mining process of the heat in reservoir for assessment of reservoir performance and project's optimal control.In this paper,a numerical simulation has been made to study the heat mining process in the EGS reservoir by FLUENT with vertical multi-fracture model.And the value of two influential factors,fracture width and fluid velocity has been changed to find out how they will affect the heat mining process.The results showed both the two factors have a heavy but nearly the same influence on the heat mining process.And either 1 mm of the original fracture width or 1 cm/s of fluid velocity is doubled,the mining ratio of economic & available heat energy in the reservoir has increased by over 25％,and also the mining rate of heat energy in the reservoir has increased by 252％.关键词
增强型地热系统/地热能/热开采/垂直裂隙/数值模拟Key words
EGS / geothermal energy / heat mining/ vertical fracture / numerical simulation分类
能源科技引用本文复制引用
胡剑,苏正,吴能友,翟海珍,曾玉超..增强型地热系统垂直裂隙热储热开采过程数值模拟[J].可再生能源,2014,32(6):829-835,7.基金项目
国家“863”计划项目(2012AA052802) （2012AA052802）
中科院广州能源所所长基金培育项目(y107a41001). （y107a41001）
