井损的消除方法及其在抽水试验中的作用  

Identification of well loss and its significance in pumping test

作　　者：肖有才[1,2] 靳向红[2] 杨兰和[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]河南城建学院土木工程系,河南平顶山467001

出　　处：《工程勘察》2009年第11期44-47,90,共5页Geotechnical Investigation & Surveying

摘　　要：在分析抽水试验时,使用抽水井的降深数据必须消除井损。本文研究了井损的消除方法。通过带观测孔的标准抽水试验直接确定井损的准确值,然后用井损的准确值检验已有的各种井损经验公式,提出了消除井损的合理步骤和方法,为解决井损研究成果与工程实际长期脱节的问题提供了参考。It is necessary to identify the well loss if drawdown in the pumping well is utilized in analysis of pumping test. In this paper, the methods of well-loss identification are investigated. A standard pumping test with several observation wells is carried out and the accurate well-loss is directly obtained. Based on the checkout of empirical equations through the pumping test, reasonable routines and methods are suggested in identification of well-loss. It is available to reduce the gap between theoretical study of well-loss and observations in practice.

关 键 词：井损 抽水试验 降深 抽水井 观测井 

分 类 号：P641.2[天文地球—地质矿产勘探]