YQZ trailer-type drilling rig is suitable for: *Drilling of drinking water wells in urban and rural areas *Agricultural irrigation water drilling *Industrial and other water well drilling holes *Engineering constructi.
[pdf] SLB (formerly Schlumberger) has topped our list this year as it continues to secure a pipeline of contract awards with customers announcing new projects and the expansion of existing developments glob.
[pdf] 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.
[pdf] 
