摘要
基于呼伦贝尔地区的地下地质特征,在工作区内选取深度、井身结构和套管程序都适宜的废弃油井,依据《浅层地热能勘查评价规范》将底部射孔层位进行封堵改造,实现了超导液闭式循环,达到了深井直接换热的目的.通过对区内ZK1油井的直接换热试验,经稳定测试取得了单井换热功率约162 kWh,每延米换热量为90 W的良好应用效果.ZK1油井直接换热改造的成功,标志着废弃油井直接换热改造是可行的,并总结了一套改造技术流程及取热利用方案,同时为类似改造工程积累了值得进一步推广的经验,为清洁能源地热的利用开辟了一条新的途径.
Based on the subsurface geological characteristics of Hulun Buir area,the abandoned oil wells with suitable depth,well structure and casing program are selected in the work area.According to the“Criteria for Exploration and Evaluation of Shallow Geothermal Energy”,the bottom perforation layers are sealed and transformed to achieve the superconductive liquid closed circulation and direct heat exchange in deep wells.Through the direct heat exchange test of ZK1 oil well,a good application effect of single well heat transfer power about 162 kWh and heat transfer energy of 90 W/m are obtained by stability test.The successful result of ZK1 oil well indicates that the direct heat exchange transformation of abandoned oil wells is feasible.Moreover,it summarizes a set of transformation process and heat utilization scheme,which provides experience for similar projects and opens up a new way for utilization of clean geothermal energy.
作者
胡霞
吕建才
张新成
HU Xia;LYU Jian-cai;ZHANG Xin-cheng(Exploration and Development Research Institute of Daqing Oilfield Co.,Ltd.,Daqing 163712,Heilongjiang Province,China;Daqing Oilfield Water Supply Co.,Ltd.,Daqing 163453,Heilongjiang Province,China)
出处
《地质与资源》
CAS
2020年第5期497-502,共6页
Geology and Resources
基金
中国石油天然气集团有限责任公司科技重大专项“油区地热资源潜力评价”项目(2016A-4802(GF)).
关键词
废弃油井
地热能
换热技术
岩石热导率
地温梯度
abandoned oil well
geothermal energy
heat exchange technology
thermal conductivity of rock
geothermal gradient
