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当钻孔穿过数层含水层,而采用分层或分段抽水试验时,隔离含水层的工作,是一项比较复杂而细致的工作,这项工作做得好坏,它关系到试验的成果,以及造成财力、人力和时间的浪费。在不同的地层中及不同的区域内,所采用的方法也不一致,今就本区在震旦纪坚硬岩层中,所选择的利用双木塞及黄泥球隔离含水层的方法介绍如下,供同志们在工作中参考。一、准备工作在利用双木塞及黄泥球隔离含水层以前,准备工作是一项比较重要的工作,它作得好环,可直接影响其质量,或造成时间上的浪费,准备工作可包括以下
When drilling through several aquifers and using stratified or staged pumping tests, the work of isolating aquifers is a relatively complicated and meticulous task. This work is good or bad and it is related to the test. The results, as well as the financial, manpower and time waste. In different strata and in different regions, the methods used are also inconsistent. Now in the Sinian hard rock formations, the method of using the double cork and the yellow mud ball to isolate the aquifer is described below. Comrades refer to their work. First, preparation work Before using the double cork and the yellow mud ball to isolate the aquifer, the preparation work is a more important task. It works well and can directly affect its quality, or cause a waste of time, preparation work can be Include the following