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U.S. Department of Energy
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Drilling of three horizontal hole pattern Fort McMurray, Alberta

Conference · · Annual CIM Petrol. Soc. Tech. Mtg.; ()
OSTI ID:5159914
Between Oct. 1980 and Feb. 1981, Texaco Canada Resources Ltd. drilled 3 horizontal holes in soft, shallow, unconsolidated Athabasca tar sands at their Fort McMurray Pilot Plant, Alberta, Can. Objectives of the project were to produce bitumen at very shallow depths with minimum drilling cost, lease cost, and environmental impact. The accomplishment is believed unique in that all 3 wells were drilled from the same drilling pad, each well being spudded in at a vertical angle of 45, and a horizontal attitude was achieved at a true vertical depth from surface of ca 125 m (410 ft). Over 350 m (1,000 ft) of horizontal hole was drilled to complete each well. A new, innovative, hydraulically operated drilling rig was built for this project with a 110,000 kg. (240,000 lb) hoist and 22,700 kg (50,000 lb) push-down capacity. New techniques were developed to drill, enlarge, and underream the horizontal hole up to 368.3 mm (14-1/2 in.) diameter. Mud motors were used to power the bit and the force on the bit was accomplished by pushing down on the drill pipe.
OSTI ID:
5159914
Report Number(s):
CONF-8206151-
Conference Information:
Journal Name: Annual CIM Petrol. Soc. Tech. Mtg.; () Journal Volume: 82-33-68
Country of Publication:
United States
Language:
English