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公开(公告)号：US11555361B2
公开(公告)日：2023-01-17
申请号：US17048611
申请日：2019-04-04
Applicant: MHWIRTH AS
Inventor： Petter Mydland , Even Karlsen , Geir Lien
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.
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公开(公告)号：US10526844B2
公开(公告)日：2020-01-07
申请号：US15444339
申请日：2017-02-28
Applicant: MHWIRTH AS
Inventor： Stian Lantz
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.
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公开(公告)号：US20190112881A1
公开(公告)日：2019-04-18
申请号：US15766004
申请日：2016-10-06
Applicant: MHWIRTH AS
Inventor： TORD ASLAK ASLAKSEN , Eivind Gimming Stensland , Nicolai Nilsen , Per Inge Roensberg
IPC: E21B19/00
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.
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公开(公告)号：US20190106980A1
公开(公告)日：2019-04-11
申请号：US16088822
申请日：2017-03-28
Applicant: MHWIRTH AS
Inventor： TOR INGE WAAG , SJUR HENNING HOLLEKIM
IPC: E21B47/00 , E21B31/107 , E21B3/02 , E21B19/02 , E21B19/16 , G01L5/00 , G06Q10/00 , G06Q10/10 , G06Q50/02
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.
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公开(公告)号：US20180044145A1
公开(公告)日：2018-02-15
申请号：US15557128
申请日：2016-02-03
Applicant: MHWIRTH AS
Inventor： ERLEND ANGEL-DALANE
IPC: B66C15/02 , B66D5/02 , F15B13/042 , F15B11/00 , F15B13/02
CPC classification number: B66C15/02 , B66B17/12 , B66D5/026 , E21B19/02 , F15B11/003 , F15B13/024 , F15B13/0422 , F15B2211/30515 , F15B2211/423 , F15B2211/55
Abstract: A back-up load retention system includes a retention line which is connected to a load, a counterweight unit which is connected to the retention line, and a double-acting hydraulic cylinder which is connected to the counterweight unit. The counterweight unit maintains a tension force in the retention line. The double-acting hydraulic cylinder brakes and/or stops the load in a case of a failure in a main lifting system.
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Patent Agency Ranking
公开(公告)号：US20170268300A1
公开(公告)日：2017-09-21
申请号：US15505117
申请日：2015-07-08
Applicant: MHWIRTH AS
Inventor： PER MORTEN LOEVSLAND
IPC: E21B19/086 , E21B19/16 , B66D1/60
CPC classification number: E21B19/086 , B66D1/60 , B66D2700/026 , E21B19/08 , E21B19/16
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.
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公开(公告)号：US09759025B2
公开(公告)日：2017-09-12
申请号：US15317120
申请日：2015-05-20
Applicant: MHWIRTH AS
Inventor： Dag Vavik
CPC classification number: E21B21/001 , E21B7/12 , E21B21/067 , E21B33/064 , E21B44/00 , E21B47/06 , E21B47/065 , E21B47/10
Abstract: A method for detecting an influx in a wellbore with first and second pressure transmitters arranged in a fixed vertical distance in relation to each other. The method includes calculating an expected density of a return flow between the first and second pressure transmitters, continuously measuring an actual density of the return flow based on a measured pressure at the first and second pressure transmitters, comparing the calculated expected density of the return flow and the measured actual density of the return flow to determine the influx in the wellbore, and predicting a probability of hydrates forming in the well by measuring a temperature via a temperature transmitter arranged in a section of the well adjacent to the first and/or the second pressure transmitter, and using the temperature together with the measurements from the first and second pressure transmitters.
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公开(公告)号：US20170138170A1
公开(公告)日：2017-05-18
申请号：US15317119
申请日：2015-05-21
Applicant: MHWIRTH AS
Inventor： DAG VAVIK
CPC classification number: E21B47/0001 , E21B21/001 , E21B41/0007 , E21B44/00 , E21B47/06 , E21B47/065 , G01V9/005 , G01V11/002 , G01V99/005
Abstract: A method for predicting a formation of hydrates in a wellbore or in a riser annulus includes logging actual mud properties, continuously measuring and/or calculating actual sets of pressure and temperature data at given locations/intervals in the wellbore or in the riser annulus, determining a theoretical temperature profile for the formation of hydrates dependent on mud properties and pressure as a function of a true vertical depth in a well, storing the theoretical temperature profile for the formation of hydrates in a control system, comparing the measured and/or calculated actual sets of pressure and temperature data with the theoretical temperature profile for the formation of hydrates, and issuing a signal from a control system if the measured and/or calculated actual sets of pressure and temperature data falls below or is lower than a predefined safety margin for the theoretical temperature profile for the formation of hydrates.
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公开(公告)号：US20170114618A1
公开(公告)日：2017-04-27
申请号：US15317976
申请日：2015-05-29
Applicant: MHWIRTH AS
Inventor： JON RUNE FLADMARK , MARIUS KJOELLEBERG
CPC classification number: E21B41/0092 , E21B41/00 , G05B19/052 , G05B2219/13167 , G05B2219/14014 , G06F11/2007 , G06F11/2038 , G06F2201/815
Abstract: A method for improving a redundancy and an uptime in a SCADA network for controlling a well operation includes executing control systems for the well operation in identical virtual simulated environments on at least two servers, storing all data for the control systems in a designated redundant cluster storage system, and setting-up the at least two servers with a load balancing.
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公开(公告)号：US20170030152A1
公开(公告)日：2017-02-02
申请号：US15302168
申请日：2015-04-08
Applicant: MHWIRTH AS
Inventor： GJERULF OTTERSLAND
CPC classification number: E21B19/008 , B66D3/06 , B66D3/08 , B66D2700/026 , E21B15/00 , E21B19/02 , E21B19/08 , E21B19/086 , E21B19/09
Abstract: A self-aligning apparatus for a lifting system includes a structure which includes a first element having a first projecting free end and a second projecting free end which each receive at least one sheave at a point of attachment to the first element, and at least two first points of rotation. The at least one sheave cooperates with at least one wire. The at least two first points of rotation are arranged above the at least one sheave's point of attachment to the first element so that the apparatus self-aligns during use in an uneven loading event.
Abstract translation: 一种用于提升系统的自对准装置包括一种结构，其包括具有第一突出自由端的第一元件和第二突出自由端，每个第一元件在与第一元件连接点处接收至少一个绳轮，并且至少两个 第一个旋转点。 至少一个滑轮与至少一根导线配合。 所述至少两个第一旋转点布置在至少一个滑轮的第一元件附近的上方，使得该装置在不均匀加载事件期间在使用期间自对准。
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