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Going the Distance: Exploring the Limits of SAGD Well Length

February 9, 2022 @ 11:30 am - 1:00 pm

The Canadian Heavy Oil Association (CHOA) and the Society of Petroleum Engineers (SPE) Calgary Chapter are pleased to announce their collaboration in cross-promoting select upcoming events that benefit both associations’ members. We believe that we are … stronger together. SPE – CHOA partnership promotes innovation, building and sharing knowledge that ignites and drives advances, and cross industry collaboration that supports and inspires the current and future leaders of the energy sector in Canada. With CHOA’s Heavy Oil strength and SPE’s breadth including a Special Interest Group in Data Science, professionals in the energy industry and beyond, have access to a wider variety of events, resources and networking opportunities, thus better chances to evolve and thrive in the continuous changing energy industry.

Part of the CHOA-SPE event cross-promoting collaboration:

Going the Distance: Exploring the Limits of SAGD Well Length

SAGD had humble beginnings as three 160 m long well pairs at the Underground Test Facility (UTF) in the late-1980’s. Those first SAGD tests launched an industry which continued to push the boundary of well length as drilling technologies improved. Over the last decade, the SAGD industry has continued to push well lengths to realize the benefits of accessing resources with fewer wells and fewer pads. SAGD project costs are greatly enhanced as this translates into less surface equipment, fewer artificial lift systems, and fewer wells drilled. Along the way questions have emerged as well length increases: Will longer wells produce at the same efficiency as shorter wells? What are the risks of landing liners and completions? Are there other factors?

Join the CHOA Upstream community and an industry panel in an open discussion on the progress made over the last several years.

The panel discussion is moderated by Scott Thompson.

Panelists include:

  • geoLOGIC Systems – Tanya Fagnan
  • CNOOC – Zim Okafor
  • ConocoPhillips – Mark Anderson
  • Canadian Natural Resources – David Dixon




Tanya Fagnan – geoLOGIC Systems

Tanya has been working in the data management space of the oil industry for over 20 years.  She has focused her career developing and implementing field data capture, production reporting and competitor analysis solutions utilized by small and large producers across North America.  Serving primarily the SAGD market in Alberta and Saskatchewan, Tanya is now part of the Technical Advisory Group at geoLOGIC Systems.  Her role is to support the TOP Analysis offering, while working within the larger organization and its customer base to build out new solutions for the ever-changing industry.


Mark Anderson, P.Eng. – ConocoPhillips

Mark has 15 years in the oil and gas industry and is pursuing Master of Science in Analytics with GeorgiaTech. He has held oilsands reservoir and exploitation engineering roles across a variety of assets including post-CHOPS EOR near Bonnyville and SAGD in Firebag, Jackfish, Pike, and currently Surmont. In his spare time, he enjoys archery, hunting, fishing, ice-fishing, video-games, gardening, and making soap.


Zim Okafor – CNOOC

Zim is the Senior Manager Drilling and Completions for CNOOC Petroleum North America. He holds a degree in Petroleum Engineering and has been in the oil industry for over 25 years. His experience spans several countries and drilling applications, with a focus on the Western Canada operations of CNOOC for the past 9 years. CNOOC operates the Long Lake Oil Sands Project using SAGD technology. As part of CNOOC team, Zim continues to work towards cost reduction strategies and technology application to support production objectives.


David Dixon – Canadian Natural Resources

David has 13 years of oil and gas experience in varying recovery processes including coalbed methane, shale oil and SAGD. Recently he built an analytical tool to streamline oil, steam, and water forecasting for 400+ SAGD wells using a Python-Excel hybrid. The tool is quickly becoming the primary forecasting methodology for multiple SAGD assets in CNRL. He has delivered extensive reservoir simulation projects to guide recompletions/workovers, solvent-enhanced SAGD, non-condensable gas use, and near-term pad developments. He enjoys classical piano, badminton, chess, and spending time with his family.

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February 9, 2022
11:30 am - 1:00 pm
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+1 403 269 1755
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