David Cadrin

I have worked in Western Canadian heavy oil since 1980 — beginning as a production technologist and District Production Foreman with Saskoil in Saskatchewan and Alberta, then in consulting roles covering well-site supervision, well recompletions, workover programs, project management and production optimization across heavy oil, conventional oil, gas, and waterflood operations in Alberta and Saskatchewan.

Since 2010, I have focused specifically on horizontal heavy oil wells with slotted liners in unconsolidated sand reservoirs — tracking why these wells decline the way they do, identifying which of them are mechanically restricted rather than genuinely depleted, and designing a workover procedure to restore inflow and fully exploit the contacted reservoir using primary production.

In 2024, the SPE Calgary Section recognized my work as a subject matter expert in non-thermal heavy oil recovery from unconsolidated sand reservoirs with the SPE 2024 Regional Completions Optimization & Technology Award.

I have applied my experience and the knowledge I have accumulated to identify under-valued, inactive horizontal heavy oil wellbores across Western Canada that appear to be positioned for divestiture and would respond to the workover I have designed.