Patents Represented by Attorney Brigid M. Laffey
  • Patent number: 7644761
    Abstract: A method of creating multiple fractures in a well traversing a formation is described using pressurized fluids in a highly deviated or horizontal section of the well at a pressure above the fracturing pressure of the formation, wherein for creating a fracture the pressurized fluid is alternated between an acid fracturing fluid and a proppant loaded fluid, such that the proppant blocks the flow of pressurized fluid into a fracture created during a previous step of the method and the subsequently pressurized acid fracturing fluid creates a new fracture at a location along the highly deviated or horizontal section different from the location of the previously created fracture.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: January 12, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Hongren Gu, J. Ernest Brown, Fakuen F. Chang