摘要
中国拥有丰富的水热型地热能资源,但普遍品位较低,利用程度较低,中低温地热利用效率的提升更是迫在眉睫。主要研究了中低温地热综合利用方式中的单一供热与供热供冷两种模式,并结合不同热储特征以及工程项目经验数据,对不同利用方式的工艺流程、工艺计算、设备选型、经济评价进行了分析。结果表明,在单一供热与供热供冷两种模式中,供热供冷模式经济性最佳,且对于某热储二地热资源(120℃)而言,在1采1灌的地热井配比下,税后财务内部收益率可达14.13%;在实际工程应用中,应结合下游市场进行判定,当具备开展供热供冷条件时,宜优先采用供热供冷模式。
China is endowed with hydrothermal geothermal resources,but the general quality and utilization efficiency remain relatively low.Increasing the utilization efficiency of low-and medium-temperature geothermal resources is critical.This study focuses on two comprehensive utilization modes of low-and medium-temperature geothermal resources:single heating and combined heating and cooling.Based on different thermal storage characteristics and engineering project data,the study analyzes the process flow,process calculation,equipment selection,and economic evaluation of various utilization modes.The results show that the combined heating and cooling mode is more cost-effective than the single heating.The after-tax financial internal rate of return for a specific geothermal resource(120℃)with ageothermal well ratio of 1:1for production and injection can reach 14.13%.In practical engineering applications,the mode should be chosen based on downstream market conditions.The combined heating and cooling mode should be first used when its prerequisites are met.
作者
林云涛
LIN Yuntao(Iraq Branch of PetroChina International Investment Co.,Ltd.,Beijing 100034,China)
出处
《石油工程建设》
2023年第5期75-82,共8页
Petroleum Engineering Construction
关键词
地热综合利用
中低温地热
经济评价
comprehensive utilization of geothermal resources
low-and medium-temperature geothermal resources
economic evaluation
作者简介
林云涛(1992-),男,吉林舒兰人,工程师,2017年毕业于中国石油大学(北京)石油与天然气工程专业,硕士,现从事石油地面工程建设工作。Email:linyuntao@cnpcint.com。
