Patents by Inventor Bernd-Georg Pietras

Bernd-Georg Pietras 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).

  • Patent number: 7757759
    Abstract: A torque sub for use with a top drive is disclosed. A method of connecting threaded tubular members for use in a wellbore includes operating a top drive. The top drive rotates a first threaded tubular member relative to a second threaded tubular member. The method further includes measuring a torque exerted on the first tubular member by the top drive. The torque is measured using a torque shaft rotationally coupled to the top drive and the first tubular. The torque shaft has a strain gage disposed thereon. The method further includes wirelessly transmitting the measured torque from the torque shaft to a stationary interface; measuring rotation of the first tubular member; compensating the rotation measurement by subtracting a deflection of the top drive and/or the first tubular member; determining acceptability of the threaded connection; and stopping rotation of the first threaded member when the threaded connection is complete or if the threaded connection is unacceptable.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: July 20, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Michael Jahn, Bernd-Georg Pietras, Karsten Heidecke
  • Publication number: 20100147534
    Abstract: An apparatus and method for facilitating the connection of tubulars using a top drive, more particularly but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing.
    Type: Application
    Filed: November 19, 2009
    Publication date: June 17, 2010
    Inventor: Bernd-Georg Pietras
  • Patent number: 7707914
    Abstract: A method and apparatus for handling tubulars is provided. In one aspect, the present invention provides a spinner having a first arm having a first roller and a second arm having a second roller, the first arm and the second arm simultaneously adjustable to retain the tubular. The apparatus also includes a third roller capable of urging the tubular against the first and second rollers, wherein at least one of the first, second, and third rollers is actuatable to rotate the tubular. In one embodiment, the spinner further comprises a fluid operated cylinder for adjusting the first arm and the second arm. The arms are adjusted by actuating the cylinder extend or retract the first arm and the second arm.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 4, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Bernd-Georg Pietras, Martin Liess
  • Publication number: 20100051257
    Abstract: A connection apparatus for coupling a top drive to a tubular gripping member comprises a body having a first joint coupled to the top drive and a second joint coupled to the tubular gripping member, wherein the body is adapted to allow fluid communication between the top drive and the tubular gripping member and to allow relative movement between the top drive and the tubular gripping member.
    Type: Application
    Filed: November 9, 2009
    Publication date: March 4, 2010
    Inventor: Bernd-Georg Pietras
  • Patent number: 7669662
    Abstract: A top drive system for drilling with casing includes a casing feeder and a torque head. In one embodiment, the casing feeder is adapted to position a casing for engagement with the torque head. The casing feeder includes a pair of conveying arms for engagement with the casing. Each conveying arm may be raised or lowered by a cylinder. The conveying arms are equipped with a motor driven roller for engaging and lifting the casing. The casing feeder may also be equipped with a counting apparatus to determine the positioning of the casing in the torque head.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: March 2, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Patent number: 7665531
    Abstract: A method and apparatus for facilitating the connection of tubulars using a top drive which, in one aspect, the apparatus includes a body connectable to said top drive. The body includes at least one gripping element radially displaceable by hydraulic or pneumatic fluid to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: February 23, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Patent number: 7617866
    Abstract: A connection apparatus for coupling a top drive to a tubular gripping member comprises a body having a first joint coupled to the top drive and a second joint coupled to the tubular gripping member, wherein the body is adapted to allow fluid communication between the top drive and the tubular gripping member and to allow relative movement between the top drive and the tubular gripping member.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: November 17, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Publication number: 20090218090
    Abstract: An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch, at least one wire line, and a device for gripping the tubular, the arrangement being such that, in use, the winch can be used to winch said at least one wire and said device to position a tubular below said top drive.
    Type: Application
    Filed: December 29, 2008
    Publication date: September 3, 2009
    Inventor: Bernd-Georg Pietras
  • Patent number: 7552775
    Abstract: An apparatus and method for handling a tubular pipe on a rig floor. In one embodiment, the apparatus includes a base, a track coupled to the base portion and a pair of arms slidably disposed along the track.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: June 30, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Publication number: 20090110535
    Abstract: A remotely operated joint elevator for use in handling a tubular is provided. The single joint elevator including a housing having an access opening configured to receive the tubular. The single joint elevator further including at least one closure member connected to the housing via a hinge pin. Additionally, the single joint elevator including a power assembly configured to rotate at least one closure member around the hinge pin to selectively open and close the access opening. In another aspect, a method of handling a tubular using a remotely operated joint elevator is provided. In yet a further aspect, a remotely operated joint elevator for use in handling a tubular.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Inventors: Bernd-Georg Pietras, Kevin Wood, Karsten Heidecke, John D. Hooker, II, Martin Helms, Martin Liess
  • Publication number: 20090101332
    Abstract: Methods and apparatus for drilling with a top drive system are provided. In one aspect, the present invention provides for a top drive system having includes a top drive, top drive adapter, and a tubular positioning apparatus. In one another aspect, the system includes a telescopic link system connected to a lower portion of the top drive adapter to move the casing string into engagement with the top drive adapter. In another aspect, the top drive adapter includes a housing operatively connected to the top drive and a plurality of retaining members disposed in the housing for gripping the tubular. In another aspect, the tubular positioning apparatus includes a gripping member for engaging a tubular and a conveying member for positioning the gripping member. A spinner may be provided to rotate the tubular.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 23, 2009
    Inventors: David Shahin, Jeff Habetz, David M. Haugen, Gary Thompson, Bernd-Georg Pietras, Jimmy L. Hollingsworth, Bernd Reinholdt
  • Publication number: 20090095488
    Abstract: An apparatus and method for facilitating the connection of tubulars using a top drive and is, more particularly but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing.
    Type: Application
    Filed: July 3, 2008
    Publication date: April 16, 2009
    Inventor: Bernd-Georg Pietras
  • Patent number: 7513300
    Abstract: A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spear and the clamping head can be engaged to transmit torque therebetween from the top drive. In addition, an aspect of the invention provides variable height wickers positioned on slips to enable use of the slips with variable inner diameter (ID) and weight casing without deformation or rupture of the casing. Still further, a casing collar is also provided to provide reinforcement to the casing in the area of slip contact with the casing ID.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: April 7, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Bernd-Georg Pietras, Thomas F. Bailey, Adrian Vuyk, Jr., Carl J. Wilson
  • Publication number: 20080308281
    Abstract: A control line running system includes a control line storage unit and a guiding system having a guiding device and a guide rail for guiding a control line from the control line storage unit toward a well center. The system may also include a control line manipulator assembly for moving the control line toward a tubular and a control line clamp for attaching the control line to the tubular.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 18, 2008
    Inventors: Doyle Frederic Boutwell, JR., Karsten Heidecke, Kevin Wood, Bernd-Georg Pietras
  • Patent number: 7451826
    Abstract: An apparatus for facilitating the connection of tubulars using a top drive, said apparatus comprising a motor (4, 4?) for rotating a tool (30) for drivingly engaging a tubular, and means (3) for connecting said motor (4, 4?) to said top drive, the apparatus being such that, in use, said motor (4, 4?) can rotate one tubular with respect to another to connect said tubular.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: November 18, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Publication number: 20080264648
    Abstract: Apparatus and methods are provided to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. In one embodiment, an interlock system is used to control the operations of a gripping apparatus connected to the top drive and a spider such that at least one of the top drive or the spider retains the tubular. The interlock system allows the spider to open when the gripping apparatus is supporting a load of the tubular or is in position to support a load of the tubular.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 30, 2008
    Inventors: Bernd-Georg Pietras, Egill Abrahamsen
  • Publication number: 20080185140
    Abstract: An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch, at least one wire line, and a device for gripping the tubular, the arrangement being such that, in use, the winch can be used to winch said at least one wire and said device to position a tubular below said top drive.
    Type: Application
    Filed: April 8, 2008
    Publication date: August 7, 2008
    Inventor: Bernd-Georg Pietras
  • Patent number: 7353880
    Abstract: An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch, at least one wire line, and a device for gripping the tubular, the arrangement being such that, in use, the winch can be used to winch said at least one wire and said device to position a tubular below said top drive.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: April 8, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Bernd-Georg Pietras
  • Publication number: 20070261858
    Abstract: An apparatus and method for facilitating the connection of tubulars using a top drive and is, more particularly but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 15, 2007
    Inventor: Bernd-Georg Pietras
  • Publication number: 20070251701
    Abstract: Embodiments of the present invention generally relate to a torque sub for use with a top drive. In one embodiment a method of connecting threaded tubular members for use in a wellbore is disclosed. The method includes operating a top drive, thereby rotating a first threaded tubular member relative to a second threaded tubular member; measuring a torque exerted on the first tubular member by the top drive, wherein the torque is measured using a torque shaft rotationally coupled to the top drive and the first tubular, the torque shaft having a strain gage disposed thereon; wirelessly transmitting the measured torque from the torque shaft to a stationary interface; measuring rotation of the first tubular member; determining acceptability of the threaded connection; and stopping rotation of the first threaded member when the threaded connection is complete or if the threaded connection is unacceptable.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 1, 2007
    Inventors: Michael Jahn, Bernd-Georg Pietras, Karsten Heidecke