Real Time Monitoring of Well Testing: A Revolutionary approach to Prove, Confirm & Improve - A Case Study

East coast of India has got few very challenging gas fields to explore. One of these fields was awarded to a state owned Oil & Gas Company. At field level, the challenges are to explore tight reservoirs, high pressure/ high temperature reservoirs and isolated gas sand pockets. In one of the well test the maximum temperature recorded was 4500 F. The last exploratory well was drilled at the periphery of the block and client wanted to test conclusively. After lots of complications during drilling, logging & cementing, the well was finally got ready to test. Due to unsuccessful attempts to complete MDT, there was a lack of dynamic permeability information which plays a crucial role in well test design. The only reference for permeability was a CMR log which was not calibrated using dynamic permeability. Another complication in well testing was poor response of CBL-VDL log due to losses occurred during the cement job. Petrophysical analysis from openhole data acquired was showing a good column of gas reservoir and relatively cleaner sand but due to lack of permeability information, the well test design was uncertain. There were few water