Patents by Inventor William R. Trujillo
William R. Trujillo 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: 6250408Abstract: Rotary drag bits with enhanced formation cuttings removal achieved by apportioning drilling fluid flow in relationship to cuttings volume generated by various groups of cutters on the bit, each cutter group being located on a different blade of the bit. The flow apportionment may be effected by selective placement of nozzles on the bit face, employing different sized nozzles, by varying the orientation of similarly-sized nozzles, or by a combination of approaches. In addition, the transverse cross-sectional areas of the junk slots associated with each of the various blades are sized in similar proportion to the formation cuttings volume removed by each of the cutter groups. Finally, cuttings volumes from each blade of a particular type or category, such as primary, secondary, tertiary, are substantially mutually balanced with the volumes of the other blades of the same type or category.Type: GrantFiled: January 24, 2000Date of Patent: June 26, 2001Assignee: Baker Hughes IncorporatedInventors: William R. Trujillo, Craig H. Cooley
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Patent number: 6230827Abstract: Rotary drag bits with enhanced formation cuttings removal achieved by apportioning drilling fluid flow in relationship to cuttings volume generated by various groups of cutters on the bit, each cutter group being located on a different blade of the bit. The flow apportionment may be effected by selective placement of nozzles on the bit face, employing different sized nozzles, by varying the orientation of similarly-sized nozzles, or by a combination of approaches. In addition, the transverse cross-sectional areas of the junk slots associated with each of the various blades are sized in similar proportion to the formation cuttings volume removed by each of the cutter groups. Finally, cuttings volumes from each blade of a particular type or category, such as primary, secondary, tertiary, are substantially mutually balanced with the volumes of the other blades of the same type or category.Type: GrantFiled: January 24, 2000Date of Patent: May 15, 2001Assignee: Baker Hughes IncorporatedInventors: William R. Trujillo, Craig H. Cooley
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Patent number: 6125947Abstract: Rotary drag bits with enhanced formation cuttings removal achieved by apportioning drilling fluid flow in relationship to cuttings volume generated by various groups of cutters on the bit, each cutter group being located on a different blade of the bit. The flow apportionment may be effected by selective placement of nozzles on the bit face, employing different sized nozzles, by varying the orientation of similarly-sized nozzles, or by a combination of approaches. In addition, the transverse cross-sectional areas of the junk slots associated with each of the various blades are sized in similar proportion to the formation cuttings volume removed by each of the cutter groups. Finally, cuttings volumes from each blade of a particular type or category, such as primary, secondary, tertiary, are substantially mutually balanced with the volumes of the other blades of the same type or category.Type: GrantFiled: September 19, 1997Date of Patent: October 3, 2000Assignee: Baker Hughes IncorporatedInventors: William R. Trujillo, Craig H. Cooley
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Patent number: 6079507Abstract: This invention discloses a drilling structure having a body defining at least one primary channel and at least one secondary channel therein to initiate and maintain recirculation of an amount of drilling fluid back through the secondary channel to maintain positive, independent flow of drilling fluid through each primary channel of the drilling structure. The recirculation of drilling fluid is encouraged by providing a recirculation passageway in fluid communication with the primary channel defined by a portion of the body of the drilling structure that separates positively flowing drilling mud from drilling mud that is being recirculated. The recirculation action of the fluid in the recirculating loop may be fed and brought about by entrainment of the fluid with jetted fluid from an adjacent nozzle.Type: GrantFiled: November 17, 1998Date of Patent: June 27, 2000Assignee: Baker Hughes Inc.Inventors: William R. Trujillo, Sean K. Berzas, Craig H. Cooley, Wayne R. Hansen
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Patent number: 5836404Abstract: This invention discloses a drilling structure having a body defining at least one primary channel and at least one secondary channel therein to initiate and maintain recirculation of an amount of drilling fluid back through the secondary channel to maintain positive, independent flow of drilling fluid through each primary channel of the drilling structure. The recirculation of drilling fluid is encouraged by providing a recirculation passageway in fluid communication with the primary channel defined by a portion of the body of the drilling structure that separates positively flowing drilling mud from drilling mud that is being recirculated. The recirculation action of the fluid in the recirculating loop may be fed and brought about by entrainment of the fluid with jetted fluid from an adjacent nozzle.Type: GrantFiled: September 10, 1997Date of Patent: November 17, 1998Assignee: Baker Hughes IncorporatedInventors: William R. Trujillo, Sean K. Berzas, Craig H. Cooley, Wayne R. Hansen
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Patent number: 5794725Abstract: This invention discloses a drilling structure having body a defining at least one primary channel and at least one secondary channel therein to initiate and maintain recirculation of an amount of drilling fluid back through the secondary channel to maintain positive, independent flow of drilling fluid through each primary channel of the drilling structure. The recirculation of drilling fluid is encouraged by providing a recirculation passageway in fluid communication with the primary channel defined by a portion of the body of the drilling structure that separates positively flowing drilling mud from drilling mud that is being recirculated. The recirculation action of the fluid in the recirculating loop may be fed and brought about by entrainment of the fluid with jetted fluid from an adjacent nozzle.Type: GrantFiled: April 12, 1996Date of Patent: August 18, 1998Assignee: Baker Hughes IncorporatedInventors: William R. Trujillo, Sean K. Berzas, Craig H. Cooley, Wayne R. Hansen
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Patent number: 5279375Abstract: A multidirectional drill bit cutter comprising a cylindrical stud having a layer of polycrystalline diamond formed thereabout. In one embodiment the stud is fortified with diamond grit and diamond rods to reduce stud wear and to reduce the depth of cut taken by the polycrystalline diamond cutting element formed about the stud. In another aspect of the invention, an earth-boring drilling system having a pair of flat profile bits utilizes multidirectional cutters in a manner which causes them to cut from a plurality of different directions.Type: GrantFiled: March 4, 1992Date of Patent: January 18, 1994Assignee: Baker Hughes IncorporatedInventors: Gordon A. Tibbitts, William R. Trujillo
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Patent number: 4913244Abstract: An improved rotating drag bit for cutting plastic, sticky, water reactive and shale formations is devised by providing a plurality of large diamond cutters having a circular cutting face in excess of three quarter inch in diameter. Each large cutter is provided with at least one hydraulic nozzle which in turn provides a directed hydraulic flow at the corresponding cutter face. The directed hydraulic flow is positioned to apply a force to the chip which tends to peel the chip away from the cutter face. In addition, the hydraulic flow is positioned with respect to the chip so as to apply on off-center torque to the chip which is used to peel the chip away from the cutter face and toward the gage of the bit. In particular, the nozzle defines a jet which is characterized by a direction and velocity of hydraulic fluid determined by the jet characteristics. The core is generally symmetric about its longitudinal axis and has a length along the longitudinal axis and width perpendicular thereto.Type: GrantFiled: October 31, 1988Date of Patent: April 3, 1990Assignee: Eastman Christensen CompanyInventor: William R. Trujillo
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Patent number: 4883136Abstract: An improved rotating drag bit for cutting plastic, sticky, water reactive and shale formations is devised by providing a plurality of large diamond cutters having a circular cutting face in excess of one inch in diameter. Each large cutter is provided with at least one hydraulic nozzle which in turn provides a directed hydraulic flow at the corresponding cutter face. The directed hydraulic flow is positioned to apply a force to the chip which tends to peel the chip away from the cutter face. In addition, the hydraulic flow is positioned with respect to the chip so as to apply an off-center torque to the chip which is used to peel the chip away from the cutter face and toward the gage of the bit. In particular, the nozzle defines a jet which is characterized by a direction and velocity of hydraulic fluid determined by the jet characteristics. The core is generally symmetric about its longitudinal axis and has a length along the longitudinal axis and width perpendicular thereto.Type: GrantFiled: January 19, 1988Date of Patent: November 28, 1989Assignee: Eastman Christensen Co.Inventor: William R. Trujillo