Abstract:
A method for production optimization in an oil and/or a gas production system comprising: at least two flow sources leading to at least one common downstream flow line, and at least one manipulated variable of the production system, wherein the method comprises use of: a computational model of the production system comprising an interdependence between flow rates of said flow sources and a flow rate of the downstream flow line, and values of the manipulated variable; a feasible set defined by at least one constraint of the manipulated variable, and an objective function, to be optimized within said feasible set, defined by using said computational model. The method comprises the steps of: - splitting by calculation said feasible set into at least two subsets, - calculating, for each of said subsets, a best bound of said objective function by using said computational model, and - manipulating said manipulated variable by using said best bound to optimise said oil and/or gas production.
Abstract:
A method for production optimization in an oil and/or a gas production system comprising: at least two flow sources leading to at least one common downstream flow line, and at least one manipulated variable of the production system, wherein the method comprises use of: a computational model of the production system comprising an interdependence between flow rates of said flow sources and a flow rate of the downstream flow line, and values of the manipulated variable; a feasible set defined by at least one constraint of the manipulated variable, and an objective function, to be optimized within said feasible set, defined by using said computational model. The method comprises the steps of: - splitting by calculation said feasible set into at least two subsets, - calculating, for each of said subsets, a best bound of said objective function by using said computational model, and - manipulating said manipulated variable by using said best bound to optimise said oil and/or gas production.
Abstract:
A method for controlling a painting system comprising an industrial robot or manipulator arm arranged with a wrist section and carrying a paint applicator arranged on the robot wrist. Paint is applied by the applicator to a substantially circular or elliptical area on said surface, and the centre of the area is defined as a Tool Centre Point. The wrist section is arranged capable of moving and orienting the paint applicator. In the improved method the paint applicator is moved by said manipulator arm so that the Tool Centre Point moves along a planned path so coating a part of said surface. The planned path may comprise one or more bends. The path taken by the robot wrist may be controlled to follow a different path from the path taken by the TCP. A system and a computer program for carrying out the method are also described.
Abstract:
An insulation cover for a high voltage paint dosing apparatus, the apparatus comprising a docking head arranged to receive at least one dosing cylinder filled with paint for dosing to an applicator or gun. The docking head is arranged substantially- surrounded by the insulation cover and whereby the external surface of the insulation cover is partly covered by aconductive or non-insulating layer (3). A system comprising the paint dosing apparatus with the insulation cover is also described.
Abstract:
A door opener arrangement for a robot coating device, used for detecting a position of a part (6) of a door (7) so that the door can be opened and/or closed for interior painting. The door opener is arranged with at least one non-contact sensor member (1), preferably for detecting changes in a field strength of a magnetic or electromagnetic field in a Z and vertical direction, and may be arranged with a plurality of sensors to detect a collision etc. A method, system and computer program are also described.
Abstract:
The invention deals with improved reliability in safety critical control of real world objects. Examples of real world objects subject to safety control are gas/smoke/fire detection systems, drilling equipment, pipes and pipelines, distillation columns, compressors, conveyor systems, boilers and turbines. A test application includes all relevant high-level language constructs and is repeatedly executed as assembler code in an industrial controller, which CPU is subject to fault detection during on-line safety control.
Abstract:
The invention generally relates to energy metering for billing purposes, low voltage cable protection against by-pass coupling and communication possibilities for collecting energy meter values. More particularly, the invention relates to a system for electric energy distribution and for remote electricity metering, comprising a low voltage distribution grid having at least one splitting site, wherein at least one splitting site has a distribution unit. The distribution unit comprises connection means (18) and energy metering means (20) for each consumer site and a data communication unit (24) arranged to receive metering values from said energy means (20) and transmits the collected metering values from said distribution unit (14).
Abstract:
It is presented a power system (3) for dynamic positioning of a vessel. The power system disclosed herein reduces the specific fuel consumption, reduces carbon buildup deposits and the risk of cylinder bore glazing while in combustion engine driven generators and provides an adequate protection against blackouts for several dynamic positioning classes. The power system (3) comprises a first combustion engine driven generator (G1), a second combustion engine driven generator (G2), a battery unit (11), and a converter unit (9) arranged to provide power to the vessel from the battery unit (11), wherein in a first operational state of the power system (3) only the first combustion engine driven generator (G1) is arranged to deliver power to the vessel, and wherein in a second operational state, in which the first combustion engine driven generator (G1) is subject to a fault, the second combustion engine driven generator (G2) is arranged to deliver power to the vessel, and wherein the converter unit (9) is arranged to deliver power to the vessel during transition from the first to the second operational state. It is also presented a sectionalised power system (2) which is a system comprising several power systems (3) as defined hereabove.
Abstract:
A method is disclosed for monitoring at least one subsea electric machine supplied by a system for electric power transmission. The system has a power supply, a controller and an AC power line connecting the at least one machine with the power supply. The method comprises the steps of: receiving at the controller, high speed data from at least one subsea sensor arranged between the subsea side of the AC power line and the at least one subsea electric machine, wherein the high speed data includes measurements of an electrical parameter for the at least one machine; and comparing the one or more measurements to a predetermined value. Asystem for electric power transmission arranged for operating at least one subsea load or electric machine is also described.
Abstract:
The present invention relates to an industrial robot comprising a plurality of arms movable relative each other about a plurality of joints, and electrical motors moving the arms. The robot is also arranged and designed to resist corrosion in a harsh environment. The robot is also mobile and arranged for movement or travel and suitable for maintenance and inspection tasks in an installation for oil and gas.