配伍性实验在西安市地热水回灌试验中的应用  

Application of Compatibility Experiment in Geothermal Re-irrigation Test in Xi'an

作　　者：陈玉林[1] 田涛[1] 奇富民 

机构地区：[1]西北大学地质学系,陕西西安710069 [2]陕西省黄陵县矿区粉煤灰蒸压制砖有限公司,陕西黄陵727307

出　　处：《地下水》2011年第6期25-26,44,共3页Ground water

摘　　要：西安市地热田储层为砂岩孔隙型储层,孔隙度和渗透率都比较低,很容易发生回灌堵塞现象。对西安市同层回灌水和异层回灌水的配伍性进行研究,配伍性实验结果表明:西安市地热尾水回灌到回灌井后主要的结垢类型为CaCO3,结垢量小于100 mg/L,配伍性较好,不会大量结垢而导致地热储层堵塞。The type of reservoir is the geothermal reservoir of porous type in Xi'an,the porosity and permeability is low that it is easy to clogging the injection well when starts reinjection.The article proposed to stuy the compatibility of the reinjected water in the same geothermal reservoir and different ones.The experimental results of compatibility show that the main type of scaling is CaSO4 and CaCO3 after each compatible test in the same layer and different ones,and the amount of scaling is less than 100mg/L.Therefore,the result of compatibility experiment is well and it will not form a great quantity of scaling to clogging the geothermal reservoir.

关 键 词：地热 孔隙型热储层 回灌 配伍性 堵塞 

分 类 号：P31[天文地球—固体地球物理学]