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涌砂井的治理

时间:2010-12-28 23:15 作者:中井水利工程 点击:次
水井维修涌砂井的治理正确判断涌砂成因及出砂位置.

水井维修涌砂井的治理正确判断涌砂成因及出砂位置。
①了解掌握水井原始资料及当时成井情况,了解止水位置及最上层滤水管位置和地层情况,了解井管材料、砾料直径、滤水管类型;
②测量静、动水位和井内沉渣深度;
③了解泵量、下泵位置及使用过程中异常情况;
④利用井下电视检测来确定涌沙的破漏位置,是静水位至动水位区间井管连接处,下泵位置、变径位置,还是过滤器部位。根据井下电视检测的结果,实施科学合理有效的维修方。
 

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