Patents Assigned to WEST DRILLING PRODUCTS AS
  • Patent number: 10794128
    Abstract: A torque absorber is described for absorbing a rotational torque that occurs when tubular elements are screwed together, the torque absorber comprising at least one cylinder and at least one piston movably arranged in the cylinder. The at least one cylinder is curved in the longitudinal direction of the cylinder and the at least one piston has a corresponding curved shape, such that the at least one piston can be moved into and out of the at least one cylinder. There is also described an apparatus comprising one or more torque absorbers for absorbing a rotational torque that occurs between two parts in the apparatus on the screwing together of tubular elements.
    Type: Grant
    Filed: June 12, 2016
    Date of Patent: October 6, 2020
    Assignee: West Drilling Products AS
    Inventors: Odd B. Skjærseth, Bjørn Eilertsen
  • Patent number: 10590718
    Abstract: A pipe-gripper includes an elongated housing. The pipe gripper further includes a rotor positioned within the elongated housing. The rotor has a periphery and a longitudinal groove extending axially therethrough. The longitudinal groove has an inside face and a groove mouth, The groove mouth has width A. In addition, the pipe gripper includes a toothed rim, the toothed rim positioned on the periphery of the rotor and interrupted by the longitudinal groove. Further, the pipe gripper includes a clamp assembly. The clamp assembly includes at least one clamp and positioned within the rotor. The pipe-gripper also includes a rotor drive, the rotor drive positioned within the elongated housing. In addition, the pipe gripper includes a transmission assembly, the transmission assembly in engagement with the rotor drive at toothed rim engagement points, the distance between toothed rim engagement points being distance B, distance B being larger than distance A.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 17, 2020
    Assignee: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjørn Eilertsen
  • Publication number: 20200063508
    Abstract: A pipe-gripper is adapted for connection to a manipulator for the handling of a pipe or a pipe stand. The pipe-gripper has an elongated housing; a rotor supported in the longitudinal housing, provided with a periphery and a longitudinal groove, the longitudinal groove having an inside face and a groove mouth having a width, and the rotor being rotatable around its center axis; a toothed rim arranged on the periphery of the rotor and being interrupted by the longitudinal groove; a clamp assembly comprising at least one clamping device arranged within the rotor; a rotor drive being positioned within the elongated housing; and a rotor transmission in engagement with the rotor drive at toothed-rim engagement points at a distance between the toothed-rim engagement points larger than the width of a groove mouth.
    Type: Application
    Filed: February 23, 2018
    Publication date: February 27, 2020
    Applicant: West Drilling Products AS
    Inventors: Odd B. Skjærseth, Bjørn Eilertsen
  • Publication number: 20200032596
    Abstract: A torque absorber is described for absorbing a rotational torque that occurs when tubular elements are screwed together, the torque absorber comprising at least one cylinder and at least one piston movably arranged in the cylinder. The at least one cylinder is curved in the longitudinal direction of the cylinder and the at least one piston has a corresponding curved shape, such that the at least one piston can be moved into and out of the at least one cylinder. There is also described an apparatus comprising one or more torque absorbers for absorbing a rotational torque that occurs between two parts in the apparatus on the screwing together of tubular elements.
    Type: Application
    Filed: June 12, 2016
    Publication date: January 30, 2020
    Applicants: WEST DRILLING PRODUCTS AS, WEST DRILLING PRODUCTS AS
    Inventors: Odd B. Skjærseth, Bjørn Eilertsen
  • Publication number: 20190003269
    Abstract: A pipe handling arm is described comprising a permanently mounted pipe gripping tool with gripping devices for gripping and holding a tubular element. The pipe handling arm further comprises a first coupling half arranged on the pipe gripping tool for connection of a work tool capable of gripping, holding and moving a downhole device. There is also a drill floor system and a method for performing a plurality of fully automatic work operations on a drill floor, the drill floor system comprising at least one fully automatic pipe handling arm and at least one work tool for performing work operations on the drill floor. The at least one pipe handling arm and the at least one work tool are adapted for fully automatic connection of the at least one work tool to the at least one pipe handling arm and fully automatic disconnection of a connected work tool from the at least one pipe handling arm.
    Type: Application
    Filed: June 12, 2016
    Publication date: January 3, 2019
    Applicant: WEST DRILLING PRODUCTS AS
    Inventors: Odd B. Skjærseth, Bjørn Eilertsen
  • Publication number: 20190003256
    Abstract: A system is described for providing a pressurized fluid on and/or in a rotatable part of the system. The system comprises at least a first part and a second part, the second part being rotatably supported relative to the first part about an axis A. The system further comprises a coupling element that is rotatably supported about the same axis A as the second part. Further, the first part comprises a first drive unit that is connected to the coupling element for rotation about the axis A, and the second part comprises a pressure-increasing device that is connected to the coupling element for driving the pressure-increasing device and regulating the drive speed of the pressure-increasing device.
    Type: Application
    Filed: June 10, 2016
    Publication date: January 3, 2019
    Applicant: WEST DRILLING PRODUCTS AS
    Inventors: Odd B. Skjærseth, Bjørn Eilertsen
  • Publication number: 20180245410
    Abstract: A pipe-gripper includes an elongated housing. The pipe gripper further includes a rotor positioned within the elongated housing. The rotor has a periphery and a longitudinal groove extending axially therethrough. The longitudinal groove has an inside face and a groove mouth, The groove mouth has width A. In addition, the pipe gripper includes a toothed rim, the toothed rim positioned on the periphery of the rotor and interrupted by the longitudinal groove. Further, the pipe gripper includes a clamp assembly. The clamp assembly includes at least one clamp and positioned within the rotor. The pipe-gripper also includes a rotor drive, the rotor drive positioned within the elongated housing. In addition, the pipe gripper includes a transmission assembly, the transmission assembly in engagement with the rotor drive at toothed rim engagement points, the distance between toothed rim engagement points being distance B, distance B being larger than distance A.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjørn Eilertsen
  • Publication number: 20180238125
    Abstract: An arrangement and a method is for heave compensation of a working unit. At least one driving unit is arranged in a vertically displaceable manner in a tower by the driving unit being in engagement with a pitch rack arranged vertically in the tower, the pitch rack being hung off in a vertically displaceable manner in a heave compensator.
    Type: Application
    Filed: September 7, 2016
    Publication date: August 23, 2018
    Applicant: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjørn Eilertsen
  • Patent number: 9822593
    Abstract: A pipe-handling system includes at least two pipe-handling units arranged in a vertically displaceable manner along respective guide tracks of, respectively, first and second portions of a tower. The pipe-handling unit is provided with lower and upper rotary units spaced apart vertically on a chassis. Each of the rotary units is provided with a rotatable tong and a hanging-off device. A method is for inserting and withdrawing a pipe string in/from a borehole by the use of the pipe-handling system.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 21, 2017
    Assignee: West Drilling Products AS
    Inventors: Bjorn Eilertsen, Odd B. Skjaerseth
  • Patent number: 9777544
    Abstract: A circulation unit and an arrangement are arranged to continuously circulate drilling fluid during drilling. A housing is provided with a center bore arranged to accommodate a portion of a pipe. The center bore includes upper and lower sealing elements. The sealing elements are provided with center openings which, by the expansion of said sealing elements, are closable or fit tightly against the pipe by the abutment of an inner sealing surface against the pipe. Each of the sealing elements is connected in a fluid-tight manner to a packing pipe which is located in the housing and which is rotatable around the center axis of the center bore. The packing pipe is surrounded by a packing assembly fitting tightly between the periphery of the packing pipe and the housing.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: October 3, 2017
    Assignee: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjorn Eilertsen
  • Patent number: 9725955
    Abstract: A circulation unit is for an arrangement arranged to continuously circulate drilling fluid during drilling. A housing is provided with a center bore which is defined by upper and lower annular sealing elements which are rotatably supported in the housing. The sealing elements are provided with a center opening which, by the expansion of said sealing elements, is closable or fits tightly against a pipe. A gate valve in a closed state forms a fluid-tight partition between upper and lower chambers in the housing. Each of the sealing elements is connected in a fluid-tight manner to a rotatable packer pipe surrounded by a packer assembly that fits tightly against the circumference of the packer pipe and against the housing. An arrangement is for the continuous circulation of drilling fluid during drilling, including as circulation unit arranged between upper and lower rotary units.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: August 8, 2017
    Assignee: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjorn Eilertsen
  • Patent number: 9708854
    Abstract: A device is for a drilling rig for forming of a bore hole in a subterranean structure. The drilling rig comprises a first, top driven drilling machine arranged vertically displaceable along a guide track, where a second drilling machine is arranged between the first drilling machine and the bore hole, vertically displaceable along a guide track and provided with a rotary table arranged to be able to take the weight of a pipe string. A rotary drive unit is arranged for continuous rotation of the pipe string. A fluid chamber is arranged to, in a fluid communicating way, be able to connect a pipe string end portion with a drilling liquid plant. As the fluid chamber is provided with pipe string ports comprising means arranged to, in a fluid sealing way, be able to close the pipe string ports. A power tong is arranged for continuous rotation of an element connected to the pipe string, as the power tong is arranged in the fluid chamber.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: July 18, 2017
    Assignee: West Drilling Products AS
    Inventors: Helge Krohn, Mads Grinrod, Odd B. Skjaerseth
  • Publication number: 20160040490
    Abstract: A circulation unit and an arrangement are arranged to continuously circulate drilling fluid during drilling. A housing is provided with a centre bore arranged to accommodate a portion of a pipe. The centre bore includes upper and lower sealing elements. The sealing elements are provided with centre openings which, by the expansion of said sealing elements, are closable or fit tightly against the pipe by the abutment of an inner sealing surface against the pipe. Each of the sealing elements is connected in a fluid-tight manner to a packing pipe which is located in the housing and which is rotatable around the centre axis of the centre bore. The packing pipe is surrounded by a packing assembly fitting, tightly between the periphery of the packing pipe and the housing.
    Type: Application
    Filed: April 3, 2014
    Publication date: February 11, 2016
    Applicant: West Drilling Products AS
    Inventors: Odd B. Skjaerseth, Bjorn Eilertsen
  • Publication number: 20140352978
    Abstract: A pipe-handling system includes at least two pipe-handling units arranged in a vertically displaceable manner along respective guide tracks of, respectively, first and second portions of a tower. The pipe-handling unit is provided with lower and upper rotary units spaced apart vertically on a chassis. Each of the rotary units is provided with a rotatable tong and a hanging-off device. A method is for inserting and withdrawing a pipe string in/from a borehole by the use of the pipe-handling system.
    Type: Application
    Filed: February 20, 2013
    Publication date: December 4, 2014
    Applicant: WEST DRILLING PRODUCTS AS
    Inventors: Bjorn Eilertsen, Odd B. Skjaerseth
  • Publication number: 20140318868
    Abstract: A device is for a drilling rig for forming of a bore hole in a subterranean structure. The drilling rig comprises a first, top driven drilling machine arranged vertically displaceable along a guide track, where a second drilling machine is arranged between the first drilling machine and the bore hole, vertically displaceable along a guide track and provided with a rotary table arranged to be able to take the weight of a pipe string. A rotary drive unit is arranged for continuous rotation of the pipe string. A fluid chamber is arranged to, in a fluid communicating way, be able to connect a pipe string end portion with a drilling liquid plant. As the fluid chamber is provided with pipe string ports comprising means arranged to, in a fluid sealing way, be able to close the pipe string ports. A power tong is arranged for continuous rotation of an element connected to the pipe string, as the power tong is arranged in the fluid chamber.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 30, 2014
    Applicant: WEST DRILLING PRODUCTS AS
    Inventors: Helge Krohn, Mads Grinrod, Odd B. Skjaerseth
  • Patent number: 8844616
    Abstract: A device for tripping, in which, at a drill-floor opening which is arranged to receive a pipe string, two or more cooperating pipe-handling units are arranged, each, independently of the other(s) or in cooperation with the other(s), being arranged to releasably hold the pipe string fixed and to move the pipe string in its axial direction, and also to move a pipe section in the axial direction of the pipe string and rotate the pipe section around the axis of the pipe string.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: September 30, 2014
    Assignee: West Drilling Products AS
    Inventors: Helge Krohn, Mads Grinrød
  • Patent number: 8794351
    Abstract: A device is for a drilling rig for forming of a bore hole in a subterranean structure. The drilling rig comprises a first, top driven drilling machine arranged vertically displaceable along a guide track, where a second drilling machine is arranged between the first drilling machine and the bore hole, vertically displaceable along a guide track and provided with a rotary table arranged to be able to take the weight of a pipe string. A rotary drive unit is arranged for continuous rotation of the pipe string. A fluid chamber is arranged to, in a fluid communicating way, be able to connect a pipe string end portion with a drilling liquid plant. As the fluid chamber is provided with pipe string ports comprising means arranged to, in a fluid sealing way, be able to close the pipe string ports. A power tong is arranged for continuous rotation of an element connected to the pipe string, as the power tong is arranged in the fluid chamber.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: August 5, 2014
    Assignee: West Drilling Products AS
    Inventors: Helge Krohn, Mads Grinrød, Odd B. Skjaerseth
  • Patent number: 8726984
    Abstract: A rotary table device is provided with means arranged for suspension of a pipe string. The rotary table comprises a rotary ring arranged rotatably about the central axis of the rotary table. The rotary ring is formed by two or more ring sections, each connected to a system comprising a bearing housing section rotatable relative to a base section, a bearing housing groove being formed in a base contact surface on the bearing housing section and a corresponding base groove being formed in an opposing bearing housing surface in the base section. The grooves form a curve-shaped track for a roller body and the groove has a curvature center coinciding with the central axis of the rotary table. The rolling diameter of the roller body exceeds the collective depth of said grooves, and a channel connecting the end portions of the bearing housing groove is formed in the bearing housing section.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: May 20, 2014
    Assignee: West Drilling Products AS
    Inventors: Helge Krohn, Ove Kalvatn, Mads Grinrød, Odd B. Skjaerseth
  • Patent number: 8651200
    Abstract: A device is for vertical tool guiding for a drill floor. On the drill floor is arranged at least one rig. Each rig is arranged on a rig foundation supported on the drill floor rotatably about a first, vertical axis (A) and arranged to be able to displace a tool in a horizontal working sector (Sa, Sb, Sc) that in a vertical projection at least touches or cuts through the central axis (C) in a through drill floor opening. Each rig is provided with a vertical guide track.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 18, 2014
    Assignee: West Drilling Products AS
    Inventors: Helge Krohn, Mads Grinrød, Odd B. Skjaerseth, Ove Kalvatn, Jarle Veshovde
  • Publication number: 20130192895
    Abstract: A device is for a drilling rig for forming of a bore hole in a subterranean structure. The drilling rig comprises a first, top driven drilling machine arranged vertically displaceable along a guide track, where a second drilling machine is arranged between the first drilling machine and the bore hole, vertically displaceable along a guide track and provided with a rotary table arranged to be able to take the weight of a pipe string. A rotary drive unit is arranged for continuous rotation of the pipe string. A fluid chamber is arranged to, in a fluid communicating way, be able to connect a pipe string end portion with a drilling liquid plant. As the fluid chamber is provided with pipe string ports comprising means arranged to, in a fluid sealing way, be able to close the pipe string ports. A power tong is arranged for continuous rotation of an element connected to the pipe string, as the power tong is arranged in the fluid chamber.
    Type: Application
    Filed: January 25, 2011
    Publication date: August 1, 2013
    Applicant: West Drilling Products AS
    Inventors: Helge Krohn, Mads Grinrød, Odd B. Skjaerseth