E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 15/04 (2006.01) E21B 7/04 (2006.01)
Patent
CA 2553470
A rig for drilling wells or holes at virtually any angle, from nearly horizontal to vertical, has a trailer mounted derrick which can be tilted to a desired angle, a top drive unit slidably mounted within such derrick and a hydraulic jacking apparatus. An automated pipe handling apparatus permits efficient transfer of pipe sections from the derrick to a truck, pipe rack or other storage facility.
Landry Harold Wayne
Macrae & Co.
LandOfFree
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