US Patent for Z-Reamer design has been issued on April 9th, 4 years after filing. Unlike France where almost everything is now electronic, ... the USPO keeps sending a nice paper copy with golden seal.

Replacing bicenter bit with near-bit Z-Reamer enabled California operator to drill their smoothest section in months. Improved directional ... control and enlarged hole quality solved well control, casing running and cementing issues when running slim casings.
https://t.co/nHWStGOtJZ

Come and meet us at IADC INTERNATIONAL DRILLING CONFERENCE & EXHIBITION 5-7 March 2019!