Patents Represented by Attorney Daryl Robert Wright

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  • Formation isolation valve and method of use
    Patent number: 7617876
    Abstract: The present invention provides for high volume flow from a well. A retrievable formation isolation valve allows high volume flow through the remaining casing or tubing. Alternatively, a large bore valve configuration that is not retrieved, but remains as part of the casing, can be used. The present invention also includes methods to allow for high volume flow using retrievable isolation valves or large bore valves.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: November 17, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Dinesh R. Patel, David A. Hill, Jabus T. Davis, David T. Lamont, Charles D. Harding
  • System and method for determining a flow profile in a deviated injection well
    Patent number: 7536905
    Abstract: A system and method is provided for determining flow profiles in a deviated well. The system and method utilize temperature measurements and a modeling technique that enable the use of temperature profiles in deriving flow profiles for fluid injected into deviated wells.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: May 26, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Younes Jalali, Thang Dinh Bui, Guohua Gao