TY  - SER
AU  - Groesbeck,Brad
AU  - McCormick,John
TI  - Unique roller tools ease around the bend
PY  - 2009///
CY  - 
PB  - 
N2  - Transcripción del resumen del autor. Engineered solutions for torque-and-drag gain new recognition with extended-reach wells
ER  -