ABSTRACT
An exploratory well was drilled in the North West part of TAL Exploration License which penetrated multiple potential formations. Open hole logs were acquired and in view of the open hole log interpretation, Wireline Formation Tester (WFT) was planned to be conducted. Main objectives were to determine vertical pressure profile across the prospective formations of fractured limestone and sandstone nature, to identify fluid/contacts present in different formations and collect representative fluid samples. Based on open hole logs analysis, 30 points/intervals were selected across multiple potential formations for recording pretests using Single probe module and Dual Packer module. During the course of recording WFT log, Real Time data transmission system was also utilized that helped in taking many critical decisions. During the execution of WFT, valuable data was acquired successfully which facilitated in meeting the pre-defined objectives. This paper confers the results & analysis on data congregated during WFT campaign and its part played in formation evaluation and reducing number of DSTs in the well. Transient testing techniques were also employed on data acquired from Dual packer module (Mini DST) for the estimation of flow regimes and reservoir parameters. This paper also presents the comparison of reservoir parameters estimated from WFT-Dual Packer (Mini DST) & CHDST and discusses the possible causes of some of the variations.
