What is (are) seismic data? Why should I not trust it (them)?

Sam Gray

Sam Gray

Wednesday, March 27th, 2019 – 11:30 AM MST
Calgary Petroleum Club, Devonian Room (+15 Level), 319 5 Ave SW


The seismic method has been instrumental in finding and delineating oil and gas reservoirs inside the Earth for nearly a century. The method consists of acquiring seismic data, processing those data, and interpreting the processed results to help predict the best drilling locations. I present an overview of these steps, and I emphasize the pitfalls arising from failure to recognize limitations in the steps, individually or in combination. Most or all the material will be familiar to geophysicists, but the conclusions I draw might be surprising.


Sam Gray

  • PhD math, long ago
  • Joined the oil and gas industry (Amoco), 1984. Learned about seismic imaging.
  • Moved to Canada, 1994. Learned about land seismic.
  • 1994-1999: Amoco – BPAmoco – BP
  • 1999-2016: Veritas – CGGVeritas – CGG
  • Retired from CGG 2016
  • Best Paper awards: SEG, CSEG
  • SEG Distinguished Lecturer, 2012
  • SEG Reginald Fessenden Award (2010), SEG Maurice Ewing Medal (2017)