Charlie Williams is chief scientist of well engineering and production technology for Shell worldwide. He was appointed chief scientist in 2005 and has also been serving as well delivery manager for Shell’s Alaska Venture since January 2010. He is also industry task force chair for the subsea well control and containment task force. His work has included developing equipment, procedures, and practices for extreme environment wells including high pressure, high temperature, H2S, CO2 CCS wells, as well as high rate/high ultimate deepwater wells. He has extensive and continuing technical expertise and involvement in Shell’s Deepwater developments beginning with Shell’s initial DW TLP - Auger.