The use of the modular dynamic tool in petrophysical parameters evaluation : application to the Bir-Berkine reservoirs - Algeria

Abstract

The technological development and the complexity of the reservoirs unceasingly encourage us to improve our working methods, of acquisition processing and interpretation of well logs, but the information provided by the well logs related to the localisation of hydrocarbons bearing zones is not perfect. The Modular Dynamic formation Tester (MDT) is a new generation of tools designed for the more pointed tests of formation. By using its various configurations and options it offers, unquestionable opportunity to obtain, starting from the pressure taps, a varied range of invaluable information for the management of the reservoirs. The virgin reservoirs service MDT is used:To determine the levels of the contacts of fluids (WOC and GOC): to determine the densities of the fluids; to characterize the reservoir heterogeneity; to decide the completion mode; to optimize the mud density to be used. In the development of reserves: to establish a pressure profile; to estimate the vertical and horizontal permeabilities; to detect the robbers zones; to determine the communications between the wells; The principal goal of this work is by combining the results of petrophysic measurements and pressure. To achieve this goal the study is articulated on four essential points:• The evaluation of the petrophysical parameters of the Bir-Berkine reservoirs; • Interpretation of pressure measurements; • Well to well correlation; • Result synthesis