Patents by Inventor George Boyadjieff
George Boyadjieff 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: 8037949Abstract: A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, and is designed to releasably engage a pipe segment in such a manner to substantially prevent relative rotation between the two. Thus, when the lower pipe engagement assembly is actuated to securely hold a pipe segment, the top drive assembly may be actuated to rotate the top drive output shaft, which causes the lower drive shaft and lower pipe engagement assembly to rotate, which in turn rotates the pipe segment.Type: GrantFiled: April 16, 2010Date of Patent: October 18, 2011Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem
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Publication number: 20100200215Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: April 16, 2010Publication date: August 12, 2010Applicant: VARCO I/P, INC.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem
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Patent number: 7753138Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.Type: GrantFiled: June 24, 2005Date of Patent: July 13, 2010Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Pamela Eidem, legal representative, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Publication number: 20100155140Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: March 1, 2010Publication date: June 24, 2010Applicant: VARCO I/P, INC.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Patent number: 7699121Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: GrantFiled: June 24, 2005Date of Patent: April 20, 2010Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Pamela Eidem, legal representative, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Patent number: 7591304Abstract: A system for measuring desired drilling parameters of a pipe string during an oil and gas well drilling operation is provided that includes a top drive assembly; a pipe running tool engageable with the pipe string and coupled to the top drive assembly to transmit translational and rotational forces from the top drive assembly to the pipe string; and one or more measurement devices mounted to the pipe running tool for measuring the desired drilling parameters of the pipe string during the oil and gas well drilling operation.Type: GrantFiled: June 24, 2005Date of Patent: September 22, 2009Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dieter Böttger, Gustaaf Louis van Wechem, David Mason
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Patent number: 7510006Abstract: An oil and gas well drilling system is provided that includes a top drive assembly having an output shaft; and a pipe running tool having a top drive extension shaft connected to the top drive output shaft and engageable with a pipe string to transmit translational and rotational forces from the top drive assembly to the pipe string, wherein the pipe running tool further includes a cementing pipe connected to the top drive extension shaft and having a fluid passageway which receives cement during a cementing operation.Type: GrantFiled: June 24, 2005Date of Patent: March 31, 2009Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Ronaldus R. M. Roling
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Publication number: 20070290645Abstract: The present invention provides systems and methods for power factor control of a motor. A phase detector uses a line voltage of a power supply and a motor terminal voltage of a motor. The output of the phase detector is synchronized to a zero crossing of the motor current of the motor and a zero crossing of the line voltage. A digital microprocessor connected between the output of the phase detector and a rectifier driver senses a first time at which a phase of the motor voltage is crossing zero volts and a second time at which a phase of the motor current is crossing zero current. The digital microprocessor calculates the difference in time between the first and second times and uses the difference in time to calculate a phase lag of the motor. The digital microprocessor uses the phase lag to calculate a firing time of a rectifier to command power efficiently to the motor.Type: ApplicationFiled: May 30, 2007Publication date: December 20, 2007Inventors: George Boyadjieff, John Hurst
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Publication number: 20060249133Abstract: A pavement cutting and vacuum system is provided that includes a transport vehicle having a holding tank carried thereby; a pavement surface cutting machine having a blade for cutting a pavement surface during a cutting operation; and a vacuum system including a vacuum head connected to the cutting machine and a vacuum hose connecting the vacuum head to the holding tank, such that cuttings created during the cutting operation are transported from the vacuum head to the holding tank by the vacuum system.Type: ApplicationFiled: May 3, 2006Publication date: November 9, 2006Inventor: George Boyadjieff
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Patent number: 7117944Abstract: A drill pipe for an oil or gas well is provided that includes a generally cylindrical hollow drill pipe having a length; and a conductive coating connected to the drill pipe to define an electrical pathway that extends along at least a portion of the length of the drill pipe.Type: GrantFiled: March 29, 2004Date of Patent: October 10, 2006Assignee: Varco I/P, Inc.Inventor: George Boyadjieff
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Patent number: 7108081Abstract: An oil and gas well drilling system is provided that includes a torque drive system having an output shaft and a drill string rotated by the torque drive system. An instrumented internal blowout preventer valve is connected between the torque drive system output shaft and the drill string. The valve includes a valve housing, and one or more measurement devices mounted to the valve housing for measuring desired drill string drilling parameters during an oil and gas well drilling operation.Type: GrantFiled: December 31, 2004Date of Patent: September 19, 2006Assignee: Varco I/P, Inc.Inventor: George Boyadjieff
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Patent number: 7096977Abstract: A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, and is designed to releasably engage a pipe segment in such a manner to substantially prevent relative rotation between the two. Thus, when the lower pipe engagement assembly is actuated to securely hold a pipe segment, the top drive assembly may be actuated to rotate the top drive output shaft, which causes the lower drive shaft and lower pipe engagement assembly to rotate, which in turn rotates the pipe segment.Type: GrantFiled: January 20, 2005Date of Patent: August 29, 2006Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman Kamphorst, Dieter Boettger, Guus van Wechem
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Publication number: 20060151179Abstract: An apparatus for transmitting a signal from deep in a wellbore through a string of tubulars, preferably drill pipe, the apparatus comprising an signal conductor and a tubular characterised in that said signal conductor is located adjacent an interior surface of the tubular, preferably drill pipe section. A transmission apparatus for transmitting a signal from deep in a wellbore through a string of tubulars, preferably drill pipe, the apparatus comprising an electrical conductor arranged in a tubular, preferably drill pipe section characterised in that the apparatus further comprises an amplifier-repeater.Type: ApplicationFiled: October 10, 2003Publication date: July 13, 2006Applicant: Varco I/P, Inc.Inventors: George Boyadjieff, Bruce Pontius, Berry Williams
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Publication number: 20060124305Abstract: An oil and gas well drilling system is provided that includes a top drive assembly having an output shaft; and a pipe running tool having a top drive extension shaft connected to the top drive output shaft and engageable with a pipe string to transmit translational and rotational forces from the top drive assembly to the pipe string, wherein the pipe running tool further includes a cementing pipe connected to the top drive extension shaft and having a fluid passageway which receives cement during a cementing operation.Type: ApplicationFiled: June 24, 2005Publication date: June 15, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans Rijzingen, Herman Kamphorst, Hans Joachim Bottger, Gustaaf Louis Wechem, David Mason, Ronaldus Roling
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Publication number: 20060124353Abstract: A system for measuring desired drilling parameters of a pipe string during an oil and gas well drilling operation is provided that includes a top drive assembly; a pipe running tool engageable with the pipe string and coupled to the top drive assembly to transmit translational and rotational forces from the top drive assembly to the pipe string; and one or more measurement devices mounted to the pipe running tool for measuring the desired drilling parameters of the pipe string during the oil and gas well drilling operation.Type: ApplicationFiled: June 24, 2005Publication date: June 15, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans Rijzingen, Herman Kamphorst, Hans Joachim Boettger, Gustaaf Louis Wechem, David Mason
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Publication number: 20060124293Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: June 24, 2005Publication date: June 15, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans van Rijzingen, Herman Kamphorst, Hans Joachim Bottger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Publication number: 20060118293Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: June 24, 2005Publication date: June 8, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans Rijzingen, Herman Kamphorst, Hans Bottger, Gustaaf Wechem, David Mason, Anton Krijnen
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Publication number: 20060005962Abstract: A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, and is designed to releasably engage a pipe segment in such a manner to substantially prevent relative rotation between the two. Thus, when the lower pipe engagement assembly is actuated to securely hold a pipe segment, the top drive assembly may be actuated to rotate the top drive output shaft, which causes the lower drive shaft and lower pipe engagement assembly to rotate, which in turn rotates the pipe segment.Type: ApplicationFiled: January 20, 2005Publication date: January 12, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans van Rijzingen, Herman Kamphorst, Dieter Boettger, Guus van Wechem
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Patent number: 6938709Abstract: A pipe running tool for use in an oil drilling system and the like comprises a lower drive shaft adapted to engage a drive shaft of a top drive assembly for rotation therewith. The pipe running tool further includes a lower pipe engagement assembly which is driven to rotate by the lower drive shaft, and is designed to releasably engage a pipe segment in such a manner to substantially prevent relative rotation between the two. Thus, when the lower pipe engagement assembly is actuated to securely hold a pipe segment, the top drive assembly may be actuated to rotate the top drive output shaft, which causes the lower drive shaft and lower pipe engagement assembly to rotate, which in turn rotates the pipe segment.Type: GrantFiled: July 3, 2002Date of Patent: September 6, 2005Assignee: Varco International, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman Kamphorst, Dieter Boettger, Guus van Wechem
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Publication number: 20050167157Abstract: An oil and gas well drilling system is provided that includes a torque drive system having an output shaft and a drill string rotated by the torque drive system. An instrumented internal blowout preventer valve is connected between the torque drive system output shaft and the drill string. The valve includes a valve housing, and one or more measurement devices mounted to the valve housing for measuring desired drill string drilling parameters during an oil and gas well drilling operation.Type: ApplicationFiled: December 31, 2004Publication date: August 4, 2005Inventor: George Boyadjieff