Fuels & Energy

May 2021

Advanced Multiphase Flow Characterization in an Annulus of an Extended Reach Petroleum Well
Date: 04 May 2021 (Tuesday)
Time: 4.00 pm (Thailand) , ~60 Min
Speaker: Dr. Aziz Rahman
Language: English

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Description: The hydrocarbon reserves of conventional/unconventional sources will remain a major source of the world’s energy supply even with the fastest growth of other energy sources including renewable energy. The petroleum and energy industry must be capable of low-energy intensive extraction and transportation of these resources, in an environmentally benign manner. Drilling wellbores is one of the most important part of extracting petroleum resources from the reservoirs. Very complex spatio-temporal flow patterns of multiphase flow, which are often observed in annuli during drilling fluid circulation and wellbore production, are not fully understood. Fundamental understanding of the effects of complex multiphase flow regime on hydrodynamic scaling and geometric scaling is an open challenge. This understanding is essential for substantial economic growth of oil and gas industry. The talk will be based on an experiments and numerical simulations project that helps to understand the multiphase (gas/liquid/solid) flow behavior in annuli under various operating, hydrodynamic and geometric conditions. The objectives of the project are as follows: 1) to develop a tool or model which will optimize and suggest meaningful surface operating parameters for efficient wellbore cleaning and drill cuttings transmittal to surface, particularly during horizontal drilling wells (cuttings settling in the tangential section), 2) to predict multiphase volume fractions (flow metering) and pressure loss in annuli with a wide range of operating, hydrodynamic and geometric conditions.
Speaker: Dr. Mohammad Azizur Rahman received his PhD from University of Alberta, Canada in 2010. Dr. Rahman is currently an Associated Professor in the Petroleum Engineering Program at Texas A&M University at Qatar (TAMUQ). Prior to his appointment at TAMUQ, he was an Assistant Professor at Memorial University of Newfoundland and an Instructor at University of Alberta, Canada. Dr. Rahman has received around 2 million research funding from Qatar Foundation, Natural Sciences and Engineering Research Council of Canada, and Newfoundland Research & Development Corp. He has been involved in a number of research collaborations with companies, including Total, Qatargas, Intecsea, NEL, Syncrude Canada, GRI simulations, and Petroleumsoft. He is also involved in with a number of professional organizations, including SPE, and ASME. He is a registered Profession Engineer in Alberta, Canada. Dr. Rahman established two multiphase flow loop in pipe/annulus and core flooding set-up in his lab. He has contributed to more than 120 refereed journals and conference publications related to multiphase flow experiment and computational fluid dynamics simulation. He supervised several postdoctoral fellows and graduate students.