Patents by Inventor Keith Alan Moriarty

Keith Alan Moriarty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotary downlink system
    Patent number: 7298285
    Abstract: A method for downlink communication with a downhole tool having a mud-powered downhole motor that includes receiving a sensor signal related to a rotational speed of a rotor in the mud-powered downhole motor, and interpreting the sensor signal to derive a downlink signal.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: November 20, 2007
    Assignee: Schlumberger Technology Corporation
    Inventor: Keith Alan Moriarty
  • Methods of casing drilling
    Patent number: 7182153
    Abstract: The present invention provides a method and apparatus for casing while drilling without the use of an underreamer. In one aspect, the invention provides a flexible drill collar that enables drilling of a large enough borehole for passage of the casing string therethrough.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: February 27, 2007
    Assignee: Schlumberger Technology Corporation
    Inventor: Keith Alan Moriarty
  • Method and apparatus enhanced acoustic mud pulse telemetry
    Patent number: 7123161
    Abstract: A method and system for telemetry through a drilling fluid during drilling is disclosed. A reflector (110) is positioned downstream from the drilling mud pumps (80) and causes reflected pressure waves having the same pressure polarity as incident pressure waves traveling upwards. At least one pressure sensor (92) is positioned below the reflector (110) to sense pressure in the drilling fluid. The reflector can be a fixed orifice plate or an adjustable aperture.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: October 17, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Benjamin Peter Jeffryes, Keith Alan Moriarty, Sandra Denisse Reyes
  • Directional casing drilling
    Patent number: 7086485
    Abstract: A directional drilling system, including a casing string, a casing latch disposed inside the casing string proximate a lower end of the casing string and coupled to the casing string, a rotary steerable system disposed inside the casing string and coupled to the casing latch, and a drill bit coupled to the rotary steerable system.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: August 8, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Keith Alan Moriarty, Michael Robert Johnson
  • Method and apparatus enhanced acoustic mud pulse telemetry
    Publication number: 20030151978
    Abstract: A method and system for telemetry through a drilling fluid during drilling is disclosed. A reflector (110) is positioned downstream from the drilling mud pumps (80) and causes reflected pressure waves having the same pressure polarity as incident pressure waves traveling upwards. At least one pressure sensor (92) is positioned below the reflector (110) to sense pressure in the drilling fluid. The reflector can be a fixed orifice plate or an adjustable aperture.
    Type: Application
    Filed: January 13, 2003
    Publication date: August 14, 2003
    Inventors: Benjamin Peter Jeffryes, Keith Alan Moriarty, Sandra Denisse Reyes