Patents Represented by Attorney Bud Ehrlich

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  • Subsea well production system
    Patent number: 8336630
    Abstract: A subsea completion testing tree (SCTT) for connection in a tubular string includes a lower tree portion having a control valve; an upper tree portion separably connected to the lower tree portion at a latch; a circulation valve connected with the upper tree portion; and a retainer valve connected with the upper tree portion between the circulation valve and the latch.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: December 25, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: John A. Kerr