Petroleum Technology VIRTUAL "Luncheon" meeting December 14 at 11:30AM
Presentation: 11:00AM - 12:00PM
On Repurposing Oil and Gas Wells to Geothermal Wells
A. Dahi Taleghani
SPE Distinguished Lecturer
Professor Petroleum Engineering Pennsylvania State University
PRE-REGISTRATION REQUIRED. Please register NOW by going to this link https://tinyurl.com/2p87m2yb
The number of abandoned oil and gas wells are growing over millions, significant costs are imposed to companies and government for decommissioning these wells. However, it would be very encouraging for the oil and gas industry to take advantage of these wells and use them as a source of geothermal energy. Huge upfront costs have always been a major obstacle for the development of geothermal energy. As a rule of thumb, a quarter of the costs for harvesting geothermal energy is going toward drilling and one third of the costs is spent for completions. One obvious solution is avoiding these costs by repurposing existing oil and gas wells to generate geothermal power at the end of their economic production life. In some regions of extensive hydrocarbon explorations, the geothermal gradient can be very steep, providing potential well candidates for conversion. Taking into consideration the local energy demand, potential market, existing infrastructure, and technical challenges, a conversion strategy for the existing wells is discussed specially in terms of the wellbore integrity requirement and steps to ensure hydrocarbon containment during the heat extraction process. Potential challenges in inspection and preparation of these wells in terms of well integrity and productivity with possible remedies will be discussed in this presentation.
Dr. Arash Dahi Taleghani is a tenured associate professor of petroleum engineering at Pennsylvania State University. Before joining Penn State, he was an associate professor of Petroleum Engineering at Louisiana State University. He earned his Ph.D. in Petroleum Engineering from the University of Texas at Austin. He has about 12 years combined experience in applied engineering, research and in academia and is a registered professional engineer. Dr. Dahi Taleghani is the associate editor of ASME journal of Energy Resources and Technology and has numerous publications and six patent applications in the field of drilling and completion. In 2014, he received the Distinguished Achievement Award for Petroleum Engineering Faculty from the Society of Petroleum Engineering (SPE). He has also received SPE Eastern North America Regional Completion Optimization and Technology in 2017. He is currently conducting research in reservoir geomechanics, hydraulic fracturing, wellbore integrity, and geothermal energy.
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