By OGJ editors
HOUSTON, Oct. 13 -- Signet Energy Inc., operator of the Sawn Lake oil sands development in Alberta, has suspended the three wells drilled so far in the Bluesky formation of the Sawn Lake area and has cancelled plans to drill a fourth well, which was to be at 13-29-91-12W5M.
The decisions came after tests of the horizontal wells, at surface locations 4-32-91-12W5M (4-32) and 7-30-91-12W5M (7-30), indicated that no cold pump production could be achieved.
To date, no assessment of in-situ production capability has been made, Signet said.
The vertical sections of the 4-32 and 7-30 wells were cored, logged, and drillstem tested. The cores indicate that the formation has porosity greater than 30%, permeabilities ranging up to 8 Darcies, and is impregnated with heavy oil. Log analysis assigns net oil pays of 23 and 22 m to the 4-32 and 7-30 wells, respectively, with average oil saturations over the pay sections of 78% and 68%, respectively.
While core and log analysis of the 7-30 well show high average oil saturation over the pay zone, to date the well has produced water with only some flecks of oil show.
