基于热藏-井筒-地面一体化的地热田智能开发研究与实践

Research and practice of intelligent development of geothermal field based on the integration of heat storage,wellbore and ground

地热能开发利用对于优化能源结构、实现碳达峰、碳中和目标具有重要意义。按照总体规划、逐步实施、突出重点的思路,进行了智能地热田整体架构设计,并结合地热供暖业务开展了实践,整体架构为“一个中心、两个平台”,即数据资源中心、地热余热生产指挥平台、地下地面一体化协同应用平台,以地质热藏、地热井筒作为地热资源开发的地面边界条件,建立基于IAM(综合资产模型)技术的地质热藏-井筒-地面一体化耦合模型,结合机器学习等技术初步实现了地热供热智能辅助决策,支撑预测预警、平稳开发、智能运维、安全生产。该技术方案在地热田开发优化调整、管网及换热站内工艺设备优化、智能供热运维等方面得到了应用,整体架构设计符合信息技术发展方向,对于地热资源智能开发具有参考价值。

The exploitation and utilization of geothermal energy plays an important role in optimizing energy structure,achieving carbon peak and carbon neutrality.According to the idea of overall planning,gradual implementation and highlighting key points,the overall architecture of intelligent geothermal field is designed,and the practice is carried out in combination with geothermal heating business.The overall architecture is"one center,two platforms",namely data resource center,geothermal waste heat production command platform,underground and ground integrated collaborative application platform,of which data resource center is the foundation.The geothermal waste heat production command platform is the core,and the underground and ground integrated collaborative application platform is an important support.Taking geological heat reservoir and geothermal wellbore as the ground boundary conditions of geothermal resource development,an integrated coupling model of geological heat reservoir-wellbore and ground based on IAM(integrated asset model)technology was established,and combined with machine learning and other technologies,intelligent auxiliary decision-making for geothermal heating was initially realized,supporting prediction and early warning,stable development,intelligent operation and maintenance,and safe production.The technical scheme has been applied in the optimization and adjustment of geothermal field development,the optimization of process equipment in pipe network and heat exchange station,intelligent heating operation and maintenance,etc.The overall architecture design conforms to the development direction of information technology,and has reference value for the intelligent development of geothermal resources.