砂岩地热回灌井射孔完井与滤水管完井对比研究  

作　　者：宋现龙 汪浩 刘瑞军 

机构地区：[1]河北绿源地热能开发有限公司,河北雄安新区071800 [2]河北省地热能循环梯级利用技术创新中心,河北雄安新区071800 [3]西安交通大学人居环境与建筑工程学院,西安710049

出　　处：《科技创新与应用》2024年第18期81-85,91,共6页Technology Innovation and Application

摘　　要：地热能作为一种储量大、分布广的清洁、可再生能源,在开发利用过程中需要进行同层回灌。目前砂岩回灌井施工完井工艺主要为止水器滤水管完井、分级固井滤水管完井,但是都存在回灌能力衰减快、长期回灌易发生堵塞等弊端。而射孔完井在油井中使用较为普遍,是提高油井产能的重要措施,但该工艺在地热井上的应用研究较少,该文通过射孔完井产能影响因素、滤水管完井优缺点分析,以及射孔完井与滤水管完井实例分析,对比砂岩区域2种完井产能测试情况分析,为砂岩区域地热井施工提供参考。As a kind of clean and renewable energy with large reserves and wide distribution,geothermal energy needs to be recharged in the same layer in the process of development and utilization.At present,the completion technology of sandstone recharge well construction is mainly water filter pipe completion and hierarchical cementing filter pipe completion,but they all have some disadvantages,such as rapid attenuation of recharge capacity,long-term recharge prone to blockage and so on.However,perforation completion is widely used in oil wells,which is an important measure to improve oil well productivity,but there is little research on the application of this technology in geothermal wells.This paper analyzes the influence factors of perforation completion productivity and the advantages and disadvantages of filter pipe completion,and analyzes the examples of perforation completion and filter pipe completion,and compares the two kinds of completion productivity test in sandstone area,so as to provide reference for geothermal well construction in sandstone area.

关 键 词：地热能 回灌 射孔完井 滤水管完井 产能测试 

分 类 号：TK529[动力工程及工程热物理—热能工程]