天津地区新近系地热回灌井不同完井工艺应用效果对比  

Reinjection effect study of different geothermal well completion in Neogene System

作　　者：王光辉[1] 赵娜[2] 赵苏民[2] 高亮[2] 李嫄嫄[2] 

机构地区：[1]天津市国土资源和房屋管理局地质事务中心,天津300042 [2]天津地热勘查开发设计院,天津300250

出　　处：《地质找矿论丛》2013年第3期481-485,共5页Contributions to Geology and Mineral Resources Research

基　　金：国家十一五"863"课题"新近系孔隙型地热回灌配套钻井技术与地面设备研究"(编号:2006AA05Z325)资助

摘　　要：针对新近系地层国内外普遍存在回灌效率低的问题,通过对滤水管和射孔两种不同完井工艺对回灌效果的影响入手,开展两种完井工艺地热回灌的试验研究。研究表明,在地层沉积环境和地层参数相同的情况下,射孔完井工艺回灌量大,回灌持续性好,不易产生堵塞,比滤水管完井工艺效果显著,对提高新近系地热回灌井的回灌效率具有明显的促进作用。Based on the low geothermal reinjection efficiency in Neogene System allover the world, The article describes the two successful geothermal reinjection example in Neogene sandstone aquifer in Huan- ghua depression and Jizhong depression. Two well completion, i.e. the filter and perforation are applied in the two projects. Under similar sedimentation environment and parameter of the strata the perforation completion is more effective than the filter completion in larger reinjection volume and consistent reinjec- tion without blocking.

关 键 词：新近系 地热 回灌 射孔 滤水管 完井工艺 天津地区 

分 类 号：P634.5[天文地球—地质矿产勘探] P641.5[天文地球—地质学]