Patents by Inventor Stuart R. Oliver
Stuart R. Oliver 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).
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Patent number: 9587478Abstract: A computer-assisted method for optimizing a drilling tool assembly, the method comprising defining a desired drilling plan; determining current drilling conditions; determining current drilling tool parameters of at least two drilling tool assembly components; analyzing the current drilling conditions and the current drilling tool parameters to define a base drilling condition; comparing the base drilling condition to the desired drilling plan; determining a drilling tool parameter to adjust to achieve the desired drilling plan; and adjusting at least one drilling tool parameter of at least one of the two drilling tool assembly components based on the comparing the base drilling condition to the desired drilling plan.Type: GrantFiled: June 7, 2011Date of Patent: March 7, 2017Assignee: SMITH INTERNATIONAL, INC.Inventors: David P. Moran, Stuart R. Oliver
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Patent number: 9145739Abstract: A cutting tool includes a tool body having a longitudinal axis and a cutting face, a plurality of blades spaced azimuthally about the cutting face and extending at least laterally through a gage region, and a plurality of cutters disposed along the blades. At least two different types of back reaming elements may be disposed on a transitional surface between the gage region of at least one blade and a connection end of the cutting tool. Alternatively, at least one back reaming element may be disposed on a transitional surface between the gage region of at least one blade and a connection end of the cutting tool, and a wear resistant material provided on or in the transitional surface.Type: GrantFiled: August 2, 2011Date of Patent: September 29, 2015Assignee: Smith International, Inc.Inventors: Carl Hoffmaster, Shelton W Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Publication number: 20120316787Abstract: A computer-assisted method for optimizing a drilling tool assembly, the method comprising defining a desired drilling plan; determining current drilling conditions; determining current drilling tool parameters of at least two drilling tool assembly components; analyzing the current drilling conditions and the current drilling tool parameters to define a base drilling condition; comparing the base drilling condition to the desired drilling plan; determining a drilling tool parameter to adjust to achieve the desired drilling plan; and adjusting at least one drilling tool parameter of at least one of the two drilling tool assembly components based on the comparing the base drilling condition to the desired drilling plan.Type: ApplicationFiled: June 7, 2011Publication date: December 13, 2012Applicant: SMITH INTERNATIONAL, INC.Inventors: David P. Moran, Stuart R. Oliver
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Publication number: 20120024604Abstract: The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.Type: ApplicationFiled: August 2, 2011Publication date: February 2, 2012Inventors: Carl Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Publication number: 20110005837Abstract: The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.Type: ApplicationFiled: September 21, 2010Publication date: January 13, 2011Applicant: SMITH INTERNATIONAL, INC.Inventors: Carl Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Patent number: 7798256Abstract: The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.Type: GrantFiled: March 3, 2006Date of Patent: September 21, 2010Assignee: Smith International, Inc.Inventors: Carl Hoffmaster, Shelton W Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Publication number: 20080230278Abstract: The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.Type: ApplicationFiled: March 3, 2006Publication date: September 25, 2008Inventors: Carl Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Publication number: 20070205023Abstract: The invention provides a fixed cutter drill bit for drilling through unconsolidated, highly abrasive formations. The bit includes a bit body having a cutting face and a side portion. The bit body comprising carbide matrix material. A plurality of blades azimuthally spaced about the cutting face and a plurality of cutters disposed along the blades. At least one gage pad is disposed along a side of the bit body and includes wear resistant gage elements formed of a material more wear resistant than the matrix material forming a portion of the gage pad. The wear resistant elements have a rounded surface and are embedded in gage pad material proximal a leading edge of the gage pad to provide a rounded wear-resistant edge or surface proximal the leading edge.Type: ApplicationFiled: March 3, 2006Publication date: September 6, 2007Inventors: Carl Hoffmaster, Shelton W. Alsup, Michael G. Azar, Thomas W. Oldham, Stuart R. Oliver, Sidney J. Isnor
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Publication number: 20070185696Abstract: A method of optimizing drilling including identifying design parameters for a drilling tool assembly, preserving the design parameters as experience data, and training at least one artificial neural network using the experience data. The method also includes collecting real-time data from the drilling operation, analyzing the real-time data with a real-time drilling optimization system, and determining optimal drilling parameters based on the analyzing the real-time date with the real-time drilling optimization system. Also, a method for optimizing drilling in real-time including collecting real-time data from a drilling operation and comparing the real-time data against predicted data in a real-time optimization system, wherein the real-time optimization includes at least one artificial neural network. The method further includes determining optimal drilling parameters based on the comparing the real-time data with the predicted data in the real-time drilling optimization system.Type: ApplicationFiled: February 2, 2007Publication date: August 9, 2007Applicant: SMITH INTERNATIONAL, INC.Inventors: David P. Moran, Stuart R. Oliver, Sujian J. Huang, Luis C. Paez, Lei Yan
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Patent number: 7020597Abstract: A method for improving drilling performance of a drilling tool assembly is disclosed. The method includes identifying a drilling performance parameter to be improved. One or more potential solutions are defined to improve the drilling performance parameter. A drilling simulation is performed to determine the dynamic response of the drilling tool assembly during a drilling operation. Determining the dynamic response includes determining the interaction of a cutting element of a drill bit with an earth formation. Improvement in the drilling performance parameter is determined based upon the drilling simulation.Type: GrantFiled: May 21, 2004Date of Patent: March 28, 2006Assignee: Smith International, Inc.Inventors: Stuart R. Oliver, Sujian Huang, Luis C. Paez, Halle Aslaksen