By using helicopters to solve transportation problems, seismic crews, portable drilling equipment, and gravity meter instruments are rapidly moved across boggy marshes at higher speeds than by using marsh buggies; tripod for gravity meter built into floor of helicopter, is released through hole after landing; when used with surveying crews, helicopter performs functions of lead chain man.
Helicopters speed humble's exploratory operations
Oil Gas J
Oil and Gas Journal ; 50 , n 10
1951
2 pages
Article (Journal)
English
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