EP2799716A2 - Procédé et système de collecte et d'évacuation de liquide de drain dans un système de compression sous-marine - Google Patents

Procédé et système de collecte et d'évacuation de liquide de drain dans un système de compression sous-marine Download PDF

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Publication number
EP2799716A2
EP2799716A2 EP20140001520 EP14001520A EP2799716A2 EP 2799716 A2 EP2799716 A2 EP 2799716A2 EP 20140001520 EP20140001520 EP 20140001520 EP 14001520 A EP14001520 A EP 14001520A EP 2799716 A2 EP2799716 A2 EP 2799716A2
Authority
EP
European Patent Office
Prior art keywords
evacuation
compressor
drainage tank
tank
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20140001520
Other languages
German (de)
English (en)
Other versions
EP2799716A3 (fr
Inventor
Rune Strand
Francesco Bongini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vetco Gray Scandinavia AS
Original Assignee
Vetco Gray Scandinavia AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vetco Gray Scandinavia AS filed Critical Vetco Gray Scandinavia AS
Publication of EP2799716A2 publication Critical patent/EP2799716A2/fr
Publication of EP2799716A3 publication Critical patent/EP2799716A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0686—Units comprising pumps and their driving means the pump being electrically driven specially adapted for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0253—Surge control by throttling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/706—Humidity separation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2521—Flow comparison or differential response
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4673—Plural tanks or compartments with parallel flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86187—Plural tanks or compartments connected for serial flow

Definitions

  • the present invention relates in general to a subsea compression system and in particular to a method and a system arranged to accomplish drainage of a compressor and to control collection and evacuation of drain liquid in the compressor which is operated for gas compression purposes in subsea gas production.
  • the gas In the production of natural gas from subsea deposits the gas typically constitutes the major component of a multiphase fluid containing a minor fraction of liquid.
  • liquid is separated from the gas to be collected in a scrubber or separator arranged upstream of the compressor, and returned to the gas on the discharge side of the compressor.
  • a liquid pump is typically required to raise the pressure in the separated liquid sufficiently to permit injection of the liquid into the gas which leaves the compressor at elevated pressure.
  • the drain liquid relief system disclosed in this document comprises a drainage storage tank that receives liquid which is separated in a scrubber arranged upstream of the compressor. Drain liquid from the compressor casing is delivered to the scrubber and further into the drain storage tank.
  • the liquid in the storage tank can be set under compressor discharge pressure via conduits and valves.
  • a Venturi tube is arranged in the compressor discharge flow and arranged to generate a pressure lower than the discharge pressure in the drain storage tank in order to suck drain liquid from the pressurized storage tank into the compressor discharge flow. Draining is done batch-wise by proper operation of valves.
  • the Venturi tube is integrally formed in the compressor discharge nozzle or fitted into the compressor piping.
  • the compressor discharge flow passes the Venturi tube.
  • a differential pressure is thus constantly generated at the Venturi tube suction port in effect of the Venturi principle.
  • the present invention aims at providing an improved method and system for drain liquid collection and evacuation in a subsea compression system wherein discharge of the drain liquid can be accomplished without requiring separate drain liquid pumps.
  • One object of the present invention is to provide a method and system for drain liquid collection and evacuation in a simplified subsea compression system wherein drain liquid collection and evacuation is accomplished separate from a separator or scrubber arranged upstream of a compressor.
  • liquid in wet gas supplied to the compressor is collected in a separate drain liquid tank which communicates directly with the compressor's sump, avoiding complex tubing and valves.
  • a controllable and adjustable throttle valve in the compressor discharge permits drain liquid evacuation to be performed intermittently during production by generation, temporarily, of a pressure drop over the throttle valve while the drainage tank is isolated from the compressor sump.
  • the drainage tank is hereby preferably set under compressor discharge pressure from upstream of the adjustable throttle valve.
  • a drain liquid evacuation sequence during production comprises the steps of:
  • a pressure difference typically in the order of 1 bar and above depending on operational conditions, is generated between inlet and outlet sides of the drainage tank, during the evacuation thereof.
  • Alternative embodiments of the invention comprises first and second drainage tanks arranged in parallel, each drainage tank individually connected to the compressor sump, the compressor inlet and the compressor discharge flow via separate lines and valves, respectively.
  • a method for operation of the system comprises: alternately evacuating liquid from one of the first and second drainage tanks into the compressor discharge flow while the other drainage tank is operative for collecting liquid from the compressor sump.
  • Another alternative embodiment of the invention comprises first and second drainage tanks arranged in series one after the other in the flow direction from the compressor sump, the first drainage tank emptying into the second drainage tank via an on/off tank isolation valve.
  • a method for operation of the system comprises: evacuating liquid from the second drainage tank while the same is isolated from the first drainage tank.
  • a system for drain liquid collection and evacuation in a subsea compression system using a compressor having a compressor inlet, a compressor discharge and a sump for collecting liquid from wet gas comprises:
  • a separate pressure source or gas accumulator is preferably arranged at or in close vicinity to the subsea compression system and connectable to the drainage tank via suitable tubing and valves.
  • the pressure source may be arranged at land or surface, or arranged subsea and supplied pressure from a land or surface based pressure generator.
  • reference number 1 refers to a compressor in a subsea compression system.
  • the compressor 1 comprises a motor 2, a rotor axis 3, and a rotor which is journalled for rotation inside the rotor housing 4.
  • the compressor 1 is configured to process wet gas that is recovered from a hydrocarbon well and delivered to the suction side of the compressor via flow pipeline to a compressor inlet 5 via an on/off valve 6. Processed gas leaves the compressor at elevated pressure via compressor discharge 7 on the discharge side of the compressor.
  • wet gas refers to a multiphase fluid containing a mixture of hydrocarbons and non-hydrocarbons in both gaseous and liquid states.
  • the relation between gas and liquid may be in the order of 9:1, i.e. the gas volume fraction in the mixed fluid will normally amount to about 90 % or more, such as 95-97 % gas.
  • the gas volume fraction in the mixed gas flow is typically not constant but varies over time.
  • the compressor 1 is designed for pressure boosting of unprocessed well streams and is for this purpose equipped to handle liquid volume fractions normally in the order of about 5 % and will intermittently tolerate liquid slugs, without mechanical failure or interruption of operation.
  • a flow conditioner 8 of non-complex structure may be arranged upstream of the compressor inlet for slug suppression and homogenization of the flow before entering the compressor 1.
  • Liquid which enters the compressor in the mixed flow will not completely leave via the compressor discharge. Due to leakage between rotor and rotor housing, e.g., liquid will be separated from the flow through the compressor and accumulate in a sump 9, arranged in the lower end of the compressor 1. In order not to overfill the sump 9 and compressor casing, a system for drain liquid collection and evacuation is installed with the wet gas compressor 1.
  • a system for drain liquid collection and evacuation in the subsea compression system using the wet-gas compressor 1 comprises a drain liquid storage tank 10, in the following referred to as drainage tank 10.
  • the drainage tank 10 is in flow communication with the compressor sump 9 from which liquid can be dumped to the drainage tank 10 via a sump evacuation line 11 and sump evacuation valve 12.
  • the sump evacuation valve 12 is an on/off valve which is controlled by a valve control unit 13 and a level sensor S that monitors the liquid level 14 in the drainage tank 10.
  • the valve 12 may be configured to stay normally open, and controlled to close intermittently upon emptying of the drainage tank 10 as will be explained further down in the specification.
  • the drainage tank 10 is a pressure vessel that communicates with the suction and discharge sides of the compressor 1.
  • the drainage tank can be set under compressor suction pressure via a valve 15 controlling the flow through a line 16 which connects the drainage tank 10 with the inlet pipeline or compressor inlet 5.
  • the drainage tank 10 can be set under compressor discharge pressure via a valve 17 controlling the flow through a line 18 which connects the drainage tank 10 with the compressor discharge flow 7.
  • Liquid can be evacuated from the drainage tank 10 via a valve 19 controlling the flow through a line 20 which connects a lower end of the drainage tank 10 with the compressor discharge flow 7.
  • the pressure line 18 connects to the compressor discharge upstream of a valve 21, whereas the evaluation line 20 connects to the compressor discharge downstream of the same valve 21.
  • valves 12, 15, 17 and 19 are on/off valves which are controllable between fully open and fully closed positions.
  • valve 21 is a throttle valve which is adjustable to set a temporary flow restriction to the compressor discharge flow 7.
  • valves 12, 15, 17, 19 and 21 are controllable in response to a detected liquid level 14 in the drainage tank 10.
  • the liquid level is monitored by the sensor S from which the information is transferred to the valve control unit 13 which shifts the valves and the drainage system into drain liquid evacuation mode.
  • All valves and the valve control unit may be electrically and/or hydraulically powered and supplied from top side at surface or land, as indicated schematically in the drawings through the open-ended dotted line which leads to the valve control unit 13.
  • the sump evacuation valve 12 is open for dumping liquid from the compressor sump 9 into the drainage tank 10. Valves 15, 17 and 19 are closed, whereas the throttle valve 21 is shifted fully open.
  • Evacuation mode is initiated as the liquid level monitor S senses that the liquid in the drainage tank 10 reaches a predetermined level.
  • evacuation mode the sump evacuation valve 12 is closed, whereupon valves 17 and 19 are opened, and the throttle valve 21 shifted to set a temporary restriction to the compressor discharge flow.
  • the pressure in the drainage tank is elevated to compressor discharge pressure via pressure valve 17 in the pressure line 18. Since in response to the flow restriction set in the throttle valve 21 a reduced discharge pressure downstream of the throttle valve is communicated to the lower end of the drainage tank 10, the pressure difference over the drainage tank 10 forces liquid out from the tank to be introduced in the compressor discharge flow, via the evacuation valve 19 and the evacuation line 20.
  • the compressor 1 may be accelerated temporarily in order to maintain constant production also in evacuation mode.
  • the valves 17 and 19 are first set in closed position and the throttle valve 21 is again set to fully open position.
  • the elevated pressure in the drainage tank 10 is then vented to the compressor suction side via pressure relief valve 15 and relief line 16.
  • the sump evacuation valve 12 is again opened and the relief valve 15 is closed.
  • an additional pressure source or gas accumulator 22 may be arranged in communication with the drainage tank 10 for the purpose of blowing the tank via a valve 23 arranged in a line 24.
  • a gas accumulator 22 the same may be supplied pressure from a surface or land based pressure source and the valve 23 may be controlled from a surface platform or other host, as indicated by arrows and open-ended lines 25, 26 in Fig. 1 .
  • the gas accumulator 22 should be located subsea in close vicinity to the compression system and the drainage tank 10.
  • a gas accumulator for blowing the drainage tank at start-up of the compression system may alternatively be mobile, such as carried on an ROV, e.g.
  • the subsea compression system of Fig. 2 differs from the embodiment of Fig. 1 with respect to the implementation of first and second drainage tanks 10a and 10b, connectable in series to the compressor sump 9. More precisely, a complementary drainage tank 10a is interconnected between the compressor sump 9 and the evacuated drainage tank 10b. During production mode liquid is dumped from the compressor sump 9 into the first drainage tank 10a via on/off valve 12a, and further from the first drainage tank 10a into the second drainage tank 10b via complementary on/off valve 12b. The second drainage tank 10b is installed in the system similarly to the drainage tank 10 of the previous embodiment.
  • the valve 12b in evacuation mode the valve 12b is closed the second drainage tank 10b pressurized via pressure valve 17 and pressure line 18 and liquid is evacuated from the second drainage tank 10b into the compressor discharge 7.
  • liquid may continuously be collected in the first drainage tank 10a via open valve 12a dumping liquid from the compressor sump 9.
  • Each drainage tank may be associated with a separate liquid level sensor S 1 and S2 which transfers the information to a valve control unit 13.
  • Each drainage tank 10a, 10b is individually connectable to the compressor suction side via separate relief valves 15a, 15b.
  • the second drainage tank 10b may be associated with a supplementary pressure source or gas accumulator 22 to aid in start-up of the compressor 1 with a liquid-filled compressor housing.
  • each drainage tank 10a, 10b communicates individually with the compressor sump via separate sump evacuation valves 12a and 12b.
  • each drainage tank is individually pressurized via separate pressure valves 17a, 17b in pressure lines 18a, 18b, respectively.
  • Each drainage tank is likewise individually evacuated via separate evacuation valves 19a and 19b, arranged in the associated evacuation lines 20a and 20b, respectively.
  • each drainage tank 10a, 10b is individually connectable to the compressor suction side via separate relief valves 15a, 15b arranged in separate relief lines 16a and 16b, respectively.
  • the liquid level in each of the first and second drainage tanks arranged in parallel needs to be individually monitored and detected, to which purpose separate sensors S 1 and S2 are arranged to transfer the information to a common valve control unit 13.
  • one or two supplementary pressure sources or gas accumulators may be arranged as disclosed above to serve both drainage tanks in common or each drainage tank individually upon start-up of the compressor 1 with a liquid-filled compressor housing,
  • the compressor discharge is only temporarily manipulated during evacuation, whereas between evacuation modes the discharge flow is unaffected and the compressor capacity fully reserved for processing the gas through the compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP20140001520 2013-04-30 2014-04-30 Procédé et système de collecte et d'évacuation de liquide de drain dans un système de compression sous-marine Withdrawn EP2799716A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20130604A NO335664B1 (no) 2013-04-30 2013-04-30 Fremgangsmåte og system for oppsamling og evakuering av dreneringsvæske i et undersjøisk kompresjonssystem

Publications (2)

Publication Number Publication Date
EP2799716A2 true EP2799716A2 (fr) 2014-11-05
EP2799716A3 EP2799716A3 (fr) 2015-05-20

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EP20140001520 Withdrawn EP2799716A3 (fr) 2013-04-30 2014-04-30 Procédé et système de collecte et d'évacuation de liquide de drain dans un système de compression sous-marine

Country Status (5)

Country Link
US (1) US20140318636A1 (fr)
EP (1) EP2799716A3 (fr)
AU (1) AU2014202201A1 (fr)
BR (1) BR102014008799A8 (fr)
NO (1) NO335664B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016050978A1 (fr) * 2014-10-03 2016-04-07 Nuovo Pignone Srl Procédé de contrôle de l'état d'une turbomachine comportant un carter où peut s'accumuler du liquide, agencement et turbomachine
NO20180680A1 (en) * 2018-05-14 2019-11-15 Aker Solutions As Subsea process system and method of operation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2015101693B4 (en) * 2015-11-19 2019-08-22 Practical Pty Ltd Gas break-through detector
CN108533521A (zh) * 2018-03-30 2018-09-14 萨震压缩机（上海）有限公司 余气利用空压机
CN111946330B (zh) * 2020-08-05 2023-12-01 中石化石油工程技术服务有限公司 一种页岩气进站超压紧急处理撬

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102905A1 (fr) 2009-03-10 2010-09-16 Siemens Aktiengesellschaft Système de surpression de liquide de purge pour un compresseur sous-marin et procédé de purge du compresseur sous-marin

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2433759B (en) * 2003-09-12 2008-02-20 Kvaerner Oilfield Prod As Subsea compression system and method
NO331265B1 (no) * 2009-07-15 2011-11-14 Fmc Kongsberg Subsea As Undersjoisk dreneringssystem
NO335032B1 (no) * 2011-06-01 2014-08-25 Vetco Gray Scandinavia As Undersjøisk kompresjonssystem med pumpe drevet av komprimert gass
NO334830B1 (no) * 2012-06-27 2014-06-10 Vetco Gray Scandinavia As Anordning og fremgangsmåte for drift av et undersjøisk kompresjonssystem i en brønnstrøm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102905A1 (fr) 2009-03-10 2010-09-16 Siemens Aktiengesellschaft Système de surpression de liquide de purge pour un compresseur sous-marin et procédé de purge du compresseur sous-marin

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016050978A1 (fr) * 2014-10-03 2016-04-07 Nuovo Pignone Srl Procédé de contrôle de l'état d'une turbomachine comportant un carter où peut s'accumuler du liquide, agencement et turbomachine
US10738789B2 (en) 2014-10-03 2020-08-11 Nuovo Pignone Srl Method of monitoring the status of a turbomachine having a casing wherein liquid may accumulate, arrangement and turbomachine
NO20180680A1 (en) * 2018-05-14 2019-11-15 Aker Solutions As Subsea process system and method of operation
WO2019221608A1 (fr) 2018-05-14 2019-11-21 Aker Solutions As Système de traitement de production de pétrole et son procédé d'exploitation
NO344895B1 (en) * 2018-05-14 2020-06-15 Aker Solutions As Subsea process system and method of operation
US11624480B2 (en) 2018-05-14 2023-04-11 Aker Solutions As Petroleum production process system and method of operation

Also Published As

Publication number Publication date
US20140318636A1 (en) 2014-10-30
NO335664B1 (no) 2015-01-19
NO20130604A1 (no) 2014-10-31
AU2014202201A1 (en) 2014-11-13
BR102014008799A8 (pt) 2016-02-02
BR102014008799A2 (pt) 2016-01-05
EP2799716A3 (fr) 2015-05-20

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