Patents Assigned to Geolink (UK) LTD, A UK Limited Liability Company
  • Signaling system for drilling
    Patent number: 6484817
    Abstract: A pressure pulse generator for use in transmitting pressure signals to surface in a fluid-based drilling system. The generator is arranged in use in the path of a pressurized fluid to operate a drilling assembly and is capable of being actuated to generate pressure signals in such fluid for transmission to surface pressure monitoring equipment. The pulse generator includes pulse height compensation to keep the pulse height within acceptable limits over a wide flow range.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: November 26, 2002
    Assignee: Geolink (UK) LTD, A UK Limited Liability Company
    Inventor: Frank Innes