Advanced Drilling Technologies' Coiled Tubing Rig

Coiled tubing drilling is being used in the Niobrara Chalk in Kansas, where Advanced Drilling Technologies is drilling a well per day at savings of 35% to 40% per well. ADT has two CT rigs, each with a 2 7/8-in. coil, that have drilled more than 1,000 vertical wells at no more than 3,900 ft since 2005.
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