Formation Evaluation Society of Malaysia (FESM)

Formation Evaluation Society of Malaysia (FESM)

“What is the fluid type in my reservoir?”

  This is a million dollar question (several millions, actually) every petrophysicists have to face each time they interpret logs. A haunting task that, surprisingly, the oil & gas industry have yet to come up with a single tool that effectively answer that question when the solution is only either gas, oil or water.

  This presentation covers the review of the open hole logs signatures acquired from a set of basic wireline logging tools, which are typically used to identify reservoir fluid types. Common interpretation challenges and examples from mainly the  clastic reservoirs will be discussed. Thorough exercise of adequate evaluation of  combined data, such as formation pressure, production test, fluid sampling, and mud logs the task of identifying the fluid type can hopefully be made not only easier, but  more correctly! ! 

Bio data: 

  Zarool Hassan Bin Tajul Amar is a petrophysicist with twenty-eight years of experience in petrophysical evaluations and four years in wireline/LWD operations. He has a Bachelor of Engineering in Aeronautical Engineering degree from University of Sydney and a Masters of Engineering in Petroleum Engineering from Heriot-Watt University. He has worked for Saudi Aramco for over six years in the Reserves Assessment Division where he was responsible for building saturation-height functions, performed reservoir characterization using hydraulic flow unit technique, and identifying fluid contacts for hydrocarbon-in-place calculations in 3D geological models. Prior to that, he was with Petronas Carigali for fifteen years and was actively involved in providing trainings and mentoring young petrophysicists. He started his career as a wireline engineer with Schlumberger in the mid-eighties. Now he is with Vestigo Petroleum chasing for that marginal oil nobody wants to touch.