DOI:10.24411/2076-6785-2020-10082
Abstract
This article explores influence of a leaky pump on results of the well test. The detailed description of the main cases of distortion. This article describes visual patterns of analyzed effects ("hump", "plateau"). Discovered the criterion in the
form of a second local positive extremum of the pressure derivative for diagnosing the presence of leaks in the pump wells system. The criterion is effective even then, “hump” and “plateau” do not manifest themselves. The article explains method to split data to ranges which are affected by well's outflow and which aren't.
Materials and methods
The results are in the form of figures and conclusions.
Keywords
pumping wells, liquid level, bottomhole pressure, leaky pump. well test, pressure derivative, pump, сriterion
