Producing Natural Gas from Shale - Opportunities and Challenges of a Major New Energy Source
Mark Zoback, Department of Geophysics, Stanford University
Monday, January 30, 2012 | 04:15 PM - 05:15 PM | NVIDIA Auditorium, Jen-Hsun Huang Engineering Center | Free and Open to All
It is now clear that enormous quantities of natural gas can be produced from organic rich shales found in many countries throughout the world. Because natural gas is both a flexible fuel and much cleaner than other fossil fuels, it has the potential to significantly transform energy use in many regions. Natural gas used for electrical power generation produces about half as much CO2 as coal.
Despite these advantages, there are also significant challenges associated natural gas development. These include minimizing the impact of shale gas development on the environment and communities. In the U.S. alone, thousands of wells will need to be drilled each year (along with construction of pipelines, compressor and distribution facilities, etc.). While a number of misleading claims have been made about the dangers associated with processes such as hydraulic fracturing, poor well construction and drilling have the potential to cause environmental damage which must be minimized.
Another challenge associated with shale gas development is to significantly improve the efficiency of drilling and production practice. This will require greatly improved understanding of shale gas production from the nano-scale pore structure and flow mechanisms in the shale to the optimal way to stimulate production using horizontal drilling and multi-stage hydraulic fracturing.
Mark D. Zoback is the Benjamin M. Page Professor of Geophysics at Stanford University. Mark conducts research on in situ stress, fault mechanics and reservoir geomechanics. He was one of the principal investigators of the SAFOD project in which a scientific research well was successfully drilled through the San Andreas Fault at seismogenic depth. He is the author of the textbook Reservoir Geomechanics published in 2007 by Cambridge University Press. He is the author/co-author of 300 technical papers and holds five patents. Mark has received a number of awards and honors, including the 2006 Emil Wiechert Medal of the German Geophysical Society and the 2008 Walter H. Bucher Medal from the American Geophysical Union. In 2011, he was elected to the National Academy of Engineering. He currently serves on the National Academy of Energy committee investigating the Deepwater Horizon accident and the Secretary of Energy’s committee on shale gas development and environmental protection.