Patents by Inventor W. Gregory Presley

W. Gregory Presley 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).

  • Enhanced offset stabilization for eccentric reamers
    Patent number: 6739416
    Abstract: Enhanced stabilization is provided for an eccentric reaming tool when a pilot borehole is undersized with respect to a following pilot stabilization pad (PSP). Alternatively, offset of a rotational axis of at least a portion of the assembly including the reaming tool is employed to accomplish stabilization of the reaming tool. In either case, a reamed diameter larger than a physical diameter of the reaming tool may be drilled. More specifically, an enlarged PSP relative to pilot bit diameter or PSP offset or even pilot bit offset is employed in order to engage a PSP with the wall of a pilot borehole of greater diameter than a physical diameter of the pilot bit. The PSP or pilot drill bit, or both, may be laterally offset, angularly offset, or a combination thereof in order to effect substantially continuous PSP contact with the pilot borehole wall.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 25, 2004
    Assignee: Baker Hughes Incorporated
    Inventors: W. Gregory Presley, Christopher S. Charles, D. Jay Clinkscales, Jeffrey B. Lund, Matthew J. Meiners, Steven R. Radford, Robert A. Laing, Matthew D. Mumma
  • Reaming apparatus and method with enhanced structural protection
    Patent number: 6695080
    Abstract: A method and apparatus for reaming or enlarging a borehole with the ability to drill cement, cement float equipment, and debris out of a casing without substantial damage to the casing interior or the reaming apparatus. The reaming apparatus also provides enhanced protection from contact with the casing wall for selected structural features and elements thereof.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: February 24, 2004
    Assignee: Baker Hughes Incorporated
    Inventors: W. Gregory Presley, Christopher S. Charles, Steven R. Radford, Matthew J. Meiners, Mark E. Morris, D. Jay Clinkscales, Jeffrey B. Lund, Robert A. Laing, Matthew D. Mumma
  • Enhanced offset stabilization for eccentric reamers
    Publication number: 20030173114
    Abstract: Enhanced stabilization is provided for an eccentric reaming tool when a pilot borehole is undersized with respect to a following pilot stabilization pad (PSP). Alternatively, offset of a rotational axis of at least a portion of the assembly including the reaming tool is employed to accomplish stabilization of the reaming tool. In either case, a reamed diameter larger than a physical diameter of the reaming tool may be drilled. More specifically, an enlarged PSP relative to pilot bit diameter or PSP offset or even pilot bit offset is employed in order to engage a PSP with the wall of a pilot borehole of greater diameter than a physical diameter of the pilot bit. The PSP or pilot drill bit, or both, may be laterally offset, angularly offset, or a combination thereof in order to effect substantially continuous PSP contact with the pilot borehole wall.
    Type: Application
    Filed: March 13, 2002
    Publication date: September 18, 2003
    Inventors: W. Gregory Presley, Christopher S. Charles, D. Jay Clinkscales, Jeffrey B. Lund, Matthew J. Meiners, Steven R. Radford, Robert A. Laing, Matthew D. Mumma
  • Reaming apparatus and method with enhanced structural protection
    Publication number: 20020166703
    Abstract: A method and apparatus for reaming or enlarging a borehole with the ability to drill cement, cement float equipment, and debris out of a casing without substantial damage to the casing interior or the reaming apparatus. The reaming apparatus also provides enhanced protection from contact with the casing wall for selected structural features and elements thereof.
    Type: Application
    Filed: April 10, 2002
    Publication date: November 14, 2002
    Inventors: W. Gregory Presley, Christopher S. Charles, Steven R. Radford, Matthew J. Meiners, Mark E. Morris, D. Jay Clinkscales, Jeffrey B. Lund, Robert A. Laing, Matthew D. Mumma