Comments on: GOM deepwater case studies: Hybrid bit minimizes vibrations, increases ROP, directional control /gom-deepwater-case-studies-hybrid-bit-minimizes-vibrations-increases-rop-directional-control-39668 Get the latest oil drilling news with Èý•NÌåÓý Wed, 22 Jun 2016 16:21:43 +0000 hourly 1 https://wordpress.org/?v=6.1.1