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Case History: SC-HydroPull Stimulation & Cleaning Tool

Sand cleanout and solvent stimulation in horizontal heavy oil wells Saskatchewan

April 17, 2013 | by Admin

Well production increased from 44 to 605 bbl (6996 to 96,187 l) per day with low water cut. For the first well, a 1.69-in. (43-mm) HydroPull tool was operated on 1.5-in. (38 mm) coil to enter a 7-in. (18 mm) slotted liner in a heavy oil horizontal completion. Prior attempts to enter this well were prevented because of obstructions between 3100 and 3800 ft (945 and 1158 m). A bullnose nozzle was run. The tool was operated at a flow rate of 1.3 bpm (207 lpm) of produced water plus 15% AS-1 solvent (kerosene and xylene). The tool slowed in the area of the obstructions, but moved through at a feed rate of 8 ft/min (2.4 m/min), then it resumed at a feed rate of 20 ft/min (6 m/min). TD was reached at 4592 ft (1400 m), and the tool was run out of the hole at 33 ft/min (10 m/min). A total of 280 bbl (44,516 l) of fluid was pumped. Well production increased from 44 to 605 bbl (6996 to 96,187 l) per day with low water cut.