Advantages of trailer mounted rigs capable of drilling to 4000 ft and deeper with 4 1/2 in. drill pipe; use of folding telescoping masts; distribution of weight on axles of trailer; fewer highway limitations overseas.
Trailer-mounted rigs cut downtime between wells
Petroleum Engr
Petroleum Engineer ; 27 , n 6
1955
Aufsatz (Zeitschrift)
Englisch
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