Patents Represented by Attorney Rodney Warford

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  • Method and apparatus for releasing a packer
    Patent number: 8240390
    Abstract: Disclosed herein are methods and apparatus for releasing a releasable packer. The apparatus may include shear screws, a mechanism for isolating the shear screw from a shearing force. The mechanism for isolating the shear screw from a shearing force is selectively unlockable to expose the shear screw to the shearing force. The methods may include unlocking a mechanism protecting at least one shear screw, applying a shearing force to the at least one shear screw, and shearing the at least one shear screw.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: James D. Hendrickson, Baozhong Yang