The first offshore mobile drilling platform was the Breton Rig 20, first operated in 1949. This rig had evolved from the inland drilling barges which were used to drill in marshes and protected waters in up to 10 feet of water. The Breton Rig 20 was 160 feet by 85 feet, and could work in 20 feet water depth.
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[pdf] Big Stan is a vehicle-mounted drill rig built in 1986 by Anderson Drilling. The rig has been used on a number of construction projects in which conventional, smaller drilling rigs were unable to be used, particularly when projects call for drilling into hard soil. Notably, Big Stan was used in the construction of the First National Bank Tower in Omaha, the Benicia-Martinez bridge near San Francis. HistoryBig Stan was built in 1986 by Anderson Drilling (Now part of ) in . The machine. .
Big Stan was designed as a v that is normally mounted on a 40 feet (12 m) long, 5-axle truck, but is also compatible with a specially designed -style carrier. When made fully operati.
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