Patents Assigned to MHWIRTH AS
  • Publication number: 20210355758
    Abstract: A drilling rig system includes a drilling rig having a floor which is generally planar, and a utility vehicle having a base, a drive apparatus, and a ground engaging motive apparatus upon which the base is supported on the floor. The drive apparatus drives the ground engaging motive apparatus to move the utility vehicle across the floor. The ground engaging motive apparatus is drivable so as to change a direction of travel of the utility vehicle at any point on the floor.
    Type: Application
    Filed: September 10, 2019
    Publication date: November 18, 2021
    Applicant: MHWIRTH AS
    Inventors: GEIR LIEN, PETTER MYDLAND
  • Publication number: 20210355766
    Abstract: Torque tool (200) configured for making up and breaking out joints (1a, 1b) in a riser (100), the tool (200) comprising: a tool body (3) and a tool head (4), the tool head (4) having a socket (4?) configured to receive a head (14) of a bolt (2) and apply a torque on the bolt (2), a torque sensor (20) operable to measure the torque applied on the bolt (2), and a pre-tension sensor (21) operable to measure a pre-tension in the longitudinal extension of the bolt (2) when the bolt (2) is received in the tool head (4). There is also provided a method for pre-tensioning bolted riser joints (1a, 1b) comprising a plurality of bolts (2), a method of managing a plurality of bolts (2) for riser joints (1a, 1b), a method of managing a plurality of bolts (2) for riser joints (1a, 1b), and a riser connector (101).
    Type: Application
    Filed: December 2, 2019
    Publication date: November 18, 2021
    Applicant: MHWIRTH DO BRASIL EQUIPAMENTOS LTDA.
    Inventors: DAVID SKAARSJOE, WAGNER MARDEGAN SARDENBERG, JOHN MAGNE JOHNSEN
  • Publication number: 20210301639
    Abstract: A drilling system includes machines, process sensors, and a drilling ECU. Each machine has machine sensor which senses an operating state and an operating range with a lower and upper limit. Each process sensor has a process sensor value and a process range with a lower and upper limit. The drilling ECU includes a data processing apparatus and a memory. The memory includes a process model with expected values of the process sensors as a function of a drilling depth, and a reservoir model with geological data. The drilling ECU receives the process sensor value and the operating state, calculates first differences between the process sensor values and the upper limit and/or the lower limit of the process range, calculates second differences between the operating state and the upper limit and/or lower limit of the operating range, and displays the first and second differences on a drilling screen.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 30, 2021
    Applicant: MHWIRTH AS
    Inventors: RAGNHILD MOERNER FIDJESTOEL, THOR ARNE BRANDSVOLL, ANN JORID HAUGLAND, KAI ADNE KOSTOEL
  • Publication number: 20210231113
    Abstract: A pulsation damping system for reducing pressure oscillations in an inlet line and/or in an outlet line of a piston pump. The piston pump includes a pump chamber which is connected to the inlet line of the piston pump via a first fluid connection and to the outlet line of the piston pump via a second fluid connection to convey a conveyance fluid. The pulsating damping system includes a damping device. The pump chamber includes a damping fluid connection via which the pump chamber is fluidically connected to the damping device to damp the pressure oscillations.
    Type: Application
    Filed: April 15, 2019
    Publication date: July 29, 2021
    Applicant: MHWIRTH GMBH
    Inventor: ROMAN JANSEN
  • Publication number: 20210180415
    Abstract: A yoke for a pipe handling crane. The yoke includes a magazine having storage slots for tubular pipes, and a pipe lifting unit having a lifting tool. The lifting tool supplies a tubular pipe to and retrieves a tubular pipe from the magazine.
    Type: Application
    Filed: April 4, 2019
    Publication date: June 17, 2021
    Applicant: MHWIRTH AS
    Inventors: PETTER MYDLAND, EVEN KARLSEN, GEIR LIEN
  • Publication number: 20210025505
    Abstract: A gate valve for controlling a flow of a fluid. The gate valve includes a valve body with a first seat pocket and a flow bore, a gate which is movable so as to intersect the flow bore, a seat with a gate end and a body end, a plate with an opening which is positionable on the seat at the gate end, and a plate retainer which is positionable between the seat and the plate so as to prevent an axial movement between the seat and the plate with respect to an axis of the flow bore. The flow bore extends through the valve body for the flow of the fluid. The gate end is arranged to face the gate, and the body end is positionable within the first seat pocket of the valve body.
    Type: Application
    Filed: January 25, 2019
    Publication date: January 28, 2021
    Applicant: MHWIRTH AS
    Inventor: CHATUFALE VIJAY
  • Patent number: 10871047
    Abstract: A method for operating a drilling plant machine includes providing a drilling plant machine which includes a sensor which measures a parameter which is indicative of a jarring load acting on the drilling plant machine from a drill string, providing a set of values representing readings from the sensor, identifying a jarring event, and determining a magnitude of the parameter from the set of values.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 22, 2020
    Assignee: MHWIRTH AS
    Inventors: Tor Inge Waag, Sjur Henning Hollekim
  • Patent number: 10801279
    Abstract: A fingerboard latch arrangement includes an elongate support member, a latch which moves from a closed position into an open position and from the open position into the closed position, and an activation member which is connected to and which is movable longitudinally along the elongate support member. The activation member includes means to bring the latch from the closed position into the open position and from the open position into the closed position.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 13, 2020
    Assignee: MHWIRTH AS
    Inventor: Per Slettedal
  • Patent number: 10745974
    Abstract: A hoisting system includes a hoisting cylinder assembly which is arranged vertically. The hoisting cylinder assembly includes at least one hoisting cylinder, a lower part, and an upper part, the upper part being moveable in relation to the lower part. At least one sheave is arranged in the upper part of the hoisting cylinder assembly. A winch which includes a base is fixed in relation to the lower part. A first wire is operatively connected to the winch and extends from the winch via the at least one sheave to a yoke so as to suspend the yoke from the at least one sheave.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 18, 2020
    Assignee: MHWIRTH AS
    Inventors: Atle Slettene, Tord Aslak Aslaksen
  • Patent number: 10731426
    Abstract: A method of operating a drilling system includes suspending a tubular drill string from a travelling assembly into an opening on a drill floor, operating a sensor to measure and to provide a first signal, providing a second signal, and comparing the first signal with the second signal. The travelling assembly is a part of a hoisting system. The first signal represents an acceleration or a velocity of the tubular drill string in a direction into or a direction out of the opening. The second signal represents an operational parameter of the hoisting system. The operational parameter is indicative of a vertical speed or of a vertical acceleration of the travelling assembly.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: August 4, 2020
    Assignee: MHWIRTH AS
    Inventors: Thor Arne S. Brandsvoll, Soeren Oeydna
  • Patent number: 10633936
    Abstract: A hoisting system includes a hoisting tower, a yoke which is movable relative to the hoisting tower and which carries a tool, a first winch, a second winch, a first sheave arranged in a top section of the hoisting tower, a second sheave arranged in the top section of the hoisting tower, a first hoisting member arranged to extend from the first winch to the yoke via the first sheave, a second hoisting member arranged to extend from the second winch to the yoke via the second sheave, and at least one first releasable connector which selectively connects the second hoisting member to the yoke.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: April 28, 2020
    Assignee: MHWIRTH AS
    Inventors: Tord Aslak Aslaksen, Eivind Gimming Stensland, Nicolai Nilsen, Per Inge Roensberg
  • Patent number: 10634583
    Abstract: A method for monitoring a condition of a mechanical system having an oil lubricated component. The method includes: (a) identifying a start of a load cycle, (b) measuring a load of the oil lubricated component, (c) measuring a temperature of a lubricating oil for the oil lubricated component, (d) calculating a first system performance parameter value for a load cycle, (e) repeating steps (a) to (d) for a plurality of load cycles, and (f) comparing a plurality of first system performance parameter values calculated to identify a change in the first system performance parameter values over the plurality of load cycles. The first system performance parameter value for the load cycle is selected from a friction coefficient for the oil lubricated component, a temperature increase coefficient for the lubricating oil for the oil lubricated component, and a temperature rise rate coefficient for the lubricating oil for the oil lubricated component.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: April 28, 2020
    Assignee: MHWIRTH AS
    Inventors: Tor Inge Waag, Eivind Mogensen
  • Publication number: 20200080412
    Abstract: A method for analyzing a drilling operation includes obtaining a first set of logged operational data from the drilling operation through a first time interval, obtaining a set of operational activity dividers that delimit second time intervals within the first time interval, allocating one of a plurality of pre-defined activities to each of the second time intervals, wherein a first activity is one of the plurality of pre-defined activities, calculating a first performance indicator parameter for the second time intervals which have been allocated to the first activity, generating a time-dependent profile of the first performance indicator parameter for the second time intervals, and outputting at least one calculated value of the first performance indicator parameter to an operator. The first performance indicator parameter is calculated as a function of a duration of a respective second time interval which has been allocated to the first activity.
    Type: Application
    Filed: April 26, 2018
    Publication date: March 12, 2020
    Applicant: MHWIRTH AS
    Inventors: OLE PETTER JOHNSEN, BOERRE THARALDSEN, BJARNE LARSEN
  • Patent number: 10526844
    Abstract: A top drive for a drilling rig includes a top drive housing, a threaded element used in a drilling operation, the threaded element having a grooved surface, and a back-up wrench with a toothed surface which engages with the grooved surface of the threaded element. The back-up wrench is suspended from the top drive housing. The back-up wrench is movable in relation to the top drive housing so as to selectively engage the threaded element.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: January 7, 2020
    Assignee: MHWIRTH AS
    Inventor: Stian Lantz
  • Patent number: 10494881
    Abstract: The present invention provides a hoisting system which includes at least one hydraulic hoisting cylinder, a pressurized gas reservoir, and an emergency lifting line with a first valve. The emergency lifting line selectively leads a pressurized gas from the pressurized gas reservoir into the at least one hydraulic hoisting cylinder.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: December 3, 2019
    Assignee: MHWIRTH AS
    Inventor: Havard Andersen
  • Patent number: 10487598
    Abstract: A storage system for storing elongate tubulars includes a base with a drive and a setback area for a vertical support of the elongate tubulars, an elongate column mounted on the base, and a first fingerboard assembly arranged on the elongate column. The base rotates about a vertical axis via the drive. The first fingerboard assembly includes at least one fingerboard. Each of the at least one fingerboard includes a plurality of storage slots arranged in a parallel, side-by-side configuration. Each of the plurality of storage slots receives a plurality of the elongate tubulars.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: November 26, 2019
    Assignee: MHWIRTH AS
    Inventor: Viggo Lutcherath
  • Patent number: 10458193
    Abstract: A device for suspending a tubular from a floating vessel includes a first element which carries the tubular, a second element supported by the floating vessel, and a compression element which forms a connection between the first element and the second element. The compression element is pre-tensioned in an end stroke position so that, when the compression element is subjected to a force from the tubular which is below a pre-defined threshold force, the connection formed by the compression element between the first and second element is a rigid connection, and, when the compression element is subject to a force from the tubular which is higher than the pre-defined threshold force, the connection formed by the compression element between the first and second element is a compressible connection.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 29, 2019
    Assignee: MHWIRTH AS
    Inventors: Oeystein Saeveland, Oeyvind Tveter
  • Publication number: 20190323301
    Abstract: A wireline tensioner includes at least one sheave, a first accumulator unit, a second accumulator unit, a hydraulic distribution system, and a hydraulic cylinder unit which is operatively connected to the at least one sheave, to the first accumulator unit and to the second accumulator unit via the hydraulic distribution system. The first accumulator unit receives hydraulic fluid from the hydraulic distribution system at a first hydraulic pressure. The second accumulator unit receives the hydraulic fluid from the hydraulic distribution system at a second hydraulic pressure. The first hydraulic pressure is lower than the second hydraulic pressure.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 24, 2019
    Applicant: MHWIRTH AS
    Inventor: LARS POEHNER
  • Patent number: 10385633
    Abstract: A positioning and compensation system for a tubular element to be connected to a drill string includes a gripping arm assembly with a gripping device which holds the tubular element in a position for connection to the drill string, and a load supporting and compensating arrangement which supports at least a portion of a load of the tubular element. The load supporting and compensating arrangement includes a cylinder unit having a piston, a winch, a sheave which is connected to the gripping arm assembly, and a wire. The wire is arranged to run around the sheave with a first end being connected to the piston and a second end being connected to the winch. The winch and the cylinder unit are each arranged in a respective elevated position compared to a position of the sheave. The cylinder unit maintains a minimum tension in the wire.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: August 20, 2019
    Assignee: MHWIRTH AS
    Inventor: Per Morten Loevsland
  • Patent number: 10385630
    Abstract: A riser tensioning system for providing a tensioning to a riser connected to a floating installation via a tension ring. The riser tensioning system includes at least one riser tensioner assembly. Each of the at least one riser tensioner assembly includes a riser tensioning cylinder comprising a cylinder rod, at least one sheave, and a wireline with a first end and a second end. The first end is fixed to the tension ring, and the second end is fixed to the cylinder rod. The wireline extends between the tension ring and the cylinder piston via the at least one sheave.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: August 20, 2019
    Assignee: MHWIRTH AS
    Inventor: Nicolai Nilsen