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Mhwirth As patents


Recent patent applications related to Mhwirth As. Mhwirth As is listed as an Agent/Assignee. Note: Mhwirth As may have other listings under different names/spellings. We're not affiliated with Mhwirth As, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Mhwirth As-related inventors


Device for suspending a tubular from a floating vessel

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.. ... Mhwirth As

Lifting arrangement

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. ... Mhwirth As

System for controlling remotely controlled equipment

A system for controlling a remotely controlled equipment. The system includes an operator station with a main operating device which is operated by an operator to provide a main operating device signal, an operator station controller, and a confirmation operating device which is operated by the operator to provide a confirmation operating device signal. ... Mhwirth As

Drilling riser protection system

A protection system for a drilling riser. The drilling riser includes a main drilling riser bore and a drilling riser annulus and extends from a floating installation to a location on a seafloor and is fluidly connected to a subsea bop. ... Mhwirth As

Drilling tubular weight compensating system

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. ... Mhwirth As

Top drive for a drilling rig

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. ... Mhwirth As

Gripping block arrangement and method of use

A gripping block includes a rear side with a largest rear side width, a front side with a smallest front side width and an outer surface with a friction generating surface arranged over at least a part of the outer surface, a first side face, and a second side face. The first side face and the second side face are arranged opposite of each other. ... Mhwirth As

Storage arrangement for well operations

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. ... Mhwirth As

Apparatus and method for replacing cable or wire in a hoisting system

A method for replacing a length of a wire/cable in a hoisting system. The wire/cable extends from a storage drum to a winch. ... Mhwirth As

Method for predicting hydrate formation

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.. . ... Mhwirth As

Method for detecting wellbore influx

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.. ... Mhwirth As

Maintenance system and method for a machine used in drilling operations

A method for scheduling a maintenance event for a machine used in drilling which includes providing a first well plan for a first well to be drilled over a first time period (ta) and a second well plan for a second well to be drilled over a second time period (tb), controlling a first computer program module for determining a projected first duty profile for the machine in the first time period and a projected second duty profile for the machine in the second time period, controlling a second computer program module for scheduling a maintenance event (tm1) for the machine based on the projected first duty profile and the projected second duty profile, and creating a new maintenance event (tm2) at a time prior to the second time period if the maintenance event (tm1) falls within the second time period.. . ... Mhwirth As

Method and system for controlling well operations

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.. . ... Mhwirth As

Self-aligning apparatus

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. ... Mhwirth As

01/26/17 / #20170023920

Improved method for testing a control system

A method for providing a real-time testing of a control system or a part thereof to control a process or a part thereof of a real world system. The method includes connecting the control system or the part thereof to a real-time simulator to simulate the real world system, providing a simulation of the real world system in real-time by applying a modified variable step-size solver, and monitoring a real-time performance of the real-time simulator and adapting step-sizes used for the modified variable step-size solver to run the simulation by comparing a time used by the modified variable step-size solver to simulate the real world system with a real-time clock, setting a maximum step-size of the modified variable step-size solver based on a sample rate of the control system, and forcing the modified variable step-size solver to return a simulation result when demanded by the control system.. ... Mhwirth As

01/12/17 / #20170009537

Compact compensating cylinder

A compensating cylinder unit for compensating relative movements between a stationary frame and a compensated frame which includes parts of a coiled tubing compensation system. The compensating cylinder unit includes a fluid reservoir configured to connect to the stationary frame, and a compensating cylinder configured to connect to the compensated frame, to at least partly enclose the fluid reservoir, and to be in a fluid communication with the fluid reservoir to allow for an axial displacement of the compensating cylinder relative to the fluid reservoir.. ... Mhwirth As








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