Patent application number | Description | Published |
20090266553 | APPARATUS AND METHOD FOR PREVENTING THE PENETRATION OF SEAWATER INTO A COMPRESSOR MODULE DURING LOWERING TO OR RETRIEVAL FROM THE SEABED - An apparatus for preventing seawater from penetrating into a compressor module during lowering to or retrieval from a compression plant on the seabed, with optional discharge of residual production fluids, as for instance hydrocarbons, from the compressor module prior to retrieval, wherein the compressor module comprises an electric motor ( | 10-29-2009 |
20090317265 | METHOD AND APPARATUS FOR PROTECTION OF COMPRESSOR MODULES AGAINST INFLUX OF CONTAMINATED GAS - A method for protection of compressor modules against undesirable influx of contaminated gas, comprising a pressure housing ( | 12-24-2009 |
20110203460 | DEVICE FOR SEPARATING AND COLLECTING FLUID IN GAS FROM A RESERVOIR - A device for separating and collecting liquid in gas from a reservoir, which is attached to processing equipment ( | 08-25-2011 |
20120257990 | CONTROL OF SUBSEA COMPRESSORS - System for control of a subsea located compressor fluidly connected to receive an inlet flow of gas through an inlet line, said flow may include liquid in an amount that may vary. The control system comprises a sensor means for measuring and determining the liquid droplet size distribution and liquid volume fraction, operatively arranged to the inlet line, and a control means operatively connected to the sensor means for operation of the control means based on input from the sensor means. Method for control of a subsea located compressor. | 10-11-2012 |
20130169044 | STABLE SUBSEA ELECTRIC POWER TRANSMISSION TO RUN SUBSEA HIGH SPEED MOTORS - The invention provides a subsea pressure boosting system feasible for operation at subsea step out lengths above 40 km and by control merely from a dry topside or onshore location. The system is distinctive in that it comprises: at least one subsea power step out cable, arranged from a near end at a dry location onshore or topsides to one or more subsea loads such as subsea pumps or subsea compressors at a far end, at the near end at least one source for electric power is connected and the cable is dimensioned for operation at a frequency different from the operation frequency of the connected subsea loads in order to handle the Ferranti effect and electric losses, and at least one passive electric frequency transformer, operatively connected between the subsea step out cable far end and the subsea loads, said transformer is located in a pressure vessel and transforms the operation frequency of the subsea step out cable to a frequency feasible for operation of the connected loads. | 07-04-2013 |
20130343932 | SUBSEA MOTOR-TURBOMACHINE - Subsea pressure booster comprising an electric motor ( | 12-26-2013 |
20140086764 | SUBSEA PRESSURE BOOSTER - Subsea turbomachine for boosting the pressure of petroleum fluid flow from subsea petroleum productions wells or systems, comprising an electric motor and a compressor or pump driven by the electric motor, a fluid inlet and a fluid outlet, distinctive that the turbomachine comprises a pressure housing common for the electric motor or stator, and compressor, pump or rotor; a magnetic gear inside the common pressure housing for operative connection between the motor or stator and compressor, pump or rotor; and a partition inside the common pressure housing, arranged so as to separate a motor or stator compartment from a compressor, pump or rotor compartment. | 03-27-2014 |
20140197764 | DEVICE FOR STABLE SUBSEA ELECTRIC POWER TRANSMISSION TO RUN SUBSEA HIGH SPEED DC MOTORS OR OTHER SUBSEA DC LOADS - Device for operative connection between a subsea step out cabie far end and subsea toads such as pumps, compressors and control systems, distinctive in that the device is a subsea DC provider (SDCP), and it comprises: a SDCP unit for altering alternating current power received from the step out cable to direct current power for delivery to said loads, a gas and/or liquid filled vessel into which said unit is arranged, and the device is a SDCP for subsea location at a far end of a subsea step out cable connected to at least one AC power source at the step out cable near end, and the step out length is long, which means long enough to cause, stability problems at frequency and power levels feasible for subsea pump and compressor motors, and where the device via the step out cable receives input electrical power at a low enough frequency to have stable transmission and the device, operativeSy connected to the subsea motors, delivers a DC output electrical amperage and voltage feasible for operation of connected pump and compressor motors. System for subsea pressure boosting of hydrocarbon fluid or other fluid, comprising the device. | 07-17-2014 |
20140203640 | DEVICE FOR STABLE SUBSEA ELECTRIC POWER TRANSMISSION TO RUN SUBSEA HIGH SPEED MOTORS OR OTHER SUBSEA LOADS - The invention provides a device for operative connection between a subsea step out cable far end and subsea loads such as pumps, compressors and control systems, distinctive in that the device is a rotating frequency stepper device, more specifically a rotating step up or step down device, and it comprises: a motor and a generator operatively connected so that the motor drives the generator, at least one gas and/or liquid filled vessel into which at least one of the motor and generator are arranged, and the step out length is long, which means long enough to cause problems due to the Ferranti effect at frequency and power levels feasible for subsea pump and compressor motors, and where the device via the step out cable receives input electrical power at a low enough frequency to have stable transmission and the device, operatively connected to the subsea motor, delivers an output electrical frequency, amperage and voltage feasible for operation of the connected motors. System for pressure boosting of hydrocarbon fluid or other fluid subsea, comprising the device. | 07-24-2014 |
20140305539 | METHOD OF DRAINING A FLUID TANK IN A FLUID SEPARATION SYSTEM - A method of draining at least one liquid collector in a system for separating and collecting liquid contained in gas from a reservoir, wherein the liquid collector is connected to an outlet from a compressor, and a recirculation circuit between the outlet of the compressor and an inlet from the reservoir to a liquid separator to which the one liquid collector is connected downstream thereof, and which outlet is connected downstream to a transport pipe. The method comprises raising the pressure of the liquid in the e liquid collector to a higher pressure than the pressure in the inlet pipe or the transport pipe, and draining the liquid in the liquid collector upstream either to the inlet pipe or directly to the liquid separator via a first drain line, or alternatively downstream to the transport pipe via a second drain line. | 10-16-2014 |