01432nmc a2200229 4500 20260520005646.0 260224s xxu CD W938 1 0013960 WPC (16th.) A revolutionary approach to reducing well costs 12/09/06 ; 26/08/2003 3 p. Resumen del autor, extraido del trabajo. Casing Drilling™1 is an emerging technology for simultaneously drilling and casing a well where the casing is used to transmit mechanical and hydraulic energy to the bit, instead of using a conventional drillstring. A drilling assembly, positioned in the lower end of the casing, replaces the tools normally located on the lower end of the conventional drillstring. This assembly is retrieved with a wireline to access bits, motors, underreamers, MWD/LWD, and other components while leaving the casing in place. The Casing Drilling process has been used on portions of ten wells during a field trial phase. The system is still undergoing development but these wells have demonstrated the functionality of the casing drilling system. v. 2, p. 156 CONGTP Tessari, R.M. 9543 TESCO 2253 World Petroleum Congress (16th. : 2000 jun. 11-15 : Calgary, Alberta, Canada) 34 TESCO 2253 Tessari, R.M. 9543 133442 133442 0 0 0 0 204361 BAAB BAAB CD W938 1 0013960 2026-03-04 200005905 0 CD W938 1 0013960 200005905 2026-03-04 14:03:16 2026-03-04 ARCHIVO