Paper: Samples of Pressure Transient Analysis of Permian Basin Pumping Wells

This paper provides five examples of pumping well buildups and the pressure transient analysis of the buildup data. The bottomhole pressure data is also included for each test. All of the buildup data was collected through the use of automatic acoustical fluid level machines. When the examples were picked an attempt was made to show typical buildup responses from Permian basin wells. Some of the buildups selected are from wells that are tight and have three phase flow. The tight wells have been stimulated, and do not fit the standard reservoir response models. The samples consist of a classic homogeneous buildup response, a well that has suffered a local reduction in permeability over time, a new drill from the same field, a well that sees interference from offset production during the buildup, and a well that has a changing storage; due to the fill up of a hydraulic fracture.