Production mapping of Heavy Oil Horizontal wells in Western Canada over the past 15 years has shown that despite having more than 1,000 times the reservoir contact than a vertical well, recovery is similar.

This profound failure to translate physical access into production has left most of the producable oil behind pipe.

A workover design in the range of $130,000 to $250,000 can stimulate inflow for an estimated Capital Efficiency of $1,500 to $6,000/flowing barrel/day. Estimated payout is less than 6 months.

The workover procedure and operational follow-up required to fully realize recovery does not require stimulation with steam, heat, or the injection of fluids, gases, solvents, or chemicals.

I have catalogued an inventory of mostly long term inactive wells with a few still producing wells, and some cold flood injection schemes that will respond to the workover design. They would be sound acquisition assets for a company looking to grow its portfolio and reserves without the cost of drilling.

David Cadrin, D. Cadrin Enterprises Ltd. SPE Calgary Section 2024 Regional Completions Optimization & Technology Award recipient for subject matter expertise in non-thermal heavy oil production and recovery from unconsolidated sand reservoirs