Interpretation of Slug Test Data

Abstract

ABSTRACT Slug tests offer a quick and inexpensive field method of obtaining localized permeability values. The most commonly used method of interpreting slug test data by Black (1978) requires considerable engineering judgement, and can potentially lead to inconsistency in its application. One of the inconsistencies is usually in the estimation of the initial excess head; the proposed Translation Method offers a way of reducing the inconsistency. Another inconsistency can result from the subjective process of matching actual data with published type curves of expected well response in different aquifers. It is proposed that a standard numerical method should be employed for consistent application and automation of this process. The development of these procedures has led to the implementation of an interactive software package that allows the consistent application of slug test analysis at a lower cost.