Patents by Inventor LUCIAN JOHNSTON

LUCIAN JOHNSTON 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).

  • Publication number: 20110132663
    Abstract: A method of steering a drilling operation of a well using rock stress measurements. The method includes obtaining well data from at least one logging while drilling tool in the well, where the well data includes stress direction information, generating, using a central processing unit (CPU), a well trajectory using survey data from the well, where the well trajectory includes a borehole direction, determining, using the CPU, a direction of minimum horizontal stress using the well data, and comparing, using the CPU, the direction of minimum horizontal stress to the borehole direction to determine that a directional criteria is not satisfied. The method further includes in response to determining that the directional criteria is not satisfied, generating an updated well trajectory that satisfies the directional criteria and adjusting the drilling operation using the updated well trajectory.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 9, 2011
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: LUCIAN JOHNSTON, SELIM DJANDJI, ANDY HAWTHORN
  • Publication number: 20090167556
    Abstract: A method of transmitting borehole image data from a borehole location to a remote location includes obtaining a set of image data describing formation surrounding a borehole using a logging tool at a selected depth or range of depths in the borehole, extracting one or more image features from the set of image data downhole, and transmitting a representation of the extracted image features to the surface.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Claude Signer, Lucian Johnston, Stein Inge Pedersen
  • Publication number: 20090107724
    Abstract: A wellbore formation sample acquisition and analysis instrument includes an annular drill bit configured to couple to one end of a drill string. The bit defines a passageway extending from a cutting face thereof to an exterior surface at a longitudinally spaced apart position from the cutting face. The instrument includes at least one sensor configured to measure a selected parameter of a sample of subsurface formation urged into the passageway by action of the cutting face against subsurface formations. Samples of the subsurface formations are ejected from the exterior surface end of the passageway by the samples entering the cutting face end thereof.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 30, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: ROBERT UTTER, Lucian Johnston, Daniel Codazzi, Fadhel Rezgui
  • Publication number: 20070017671
    Abstract: Wellbore communication systems and methods for a wellsite having a downhole tool deployed from a rig into a wellbore penetrating a subterranean formation are disclosed. One example communication system includes a first mud pulse telemetry device positioned in a downhole tool and at least one additional non-mud pulse telemetry device positioned in the downhole tool. The example system also includes at least one of a pressure transducer or a pressure sensor adapted to detect a modulated pressure provided by at least one of the telemetry devices.
    Type: Application
    Filed: May 10, 2006
    Publication date: January 25, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: BRIAN CLARK, LUCIAN JOHNSTON, REMI HUTIN, NICOLAS PACAULT, PABLO CODESAL, STEVE GOMEZ, RANDALL LEBLANC