Rig is completely transportable by helicopter, in 4000 lb packages; it is designed to work on diesel-direct electric power and provides capacity for drilling 9 7/8 in. hole to 12,000 ft with 4 1/2 in. light weight drill pipe; drilling 6 1/8 in. hole to 15,000 ft with tapered string of 4 in. and 3 1/2 in. light weight drill pipe; running 7 5/8 in. casing to 12,000 ft, and running 4 1/2 in. casing to 15,000 ft. (see also World Petroleum v 31 n 9 Aug 1960 p 54, 57)
Fly-in rig speeds up Bolivian exploration
Petroleum Engr
Petroleum Engineer ; 32 , n 6
1960
Article (Journal)
English
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Fly-in rig speeds up Bolivian exploration
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