An oil filtration system for subsea oil-filled machines 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2016076353 A1 2016-03-17 [US20160076353] / 2016-03-17
申请号/申请日
2014US-14784863 / 2014-04-15
发明人
BERLE ATLE KARSTEIN;ROGNE RAYMOND;
申请人
FRAMO ENGINEERING;
主分类号
IPC分类号
B01D-029/56B01D-035/02B01D-035/147B01D-035/18B01D-036/00B01D-061/36B03C-001/30E21B-043/36
摘要
(US20160076353) A subsea oil filtration system is described that forms a closed circuit with and is mounted on or connected to a subsea rotating machine.  According to some embodiments, the oil filtration system enables the removal of dirt and/or water that has entered the barrier fluid/oil system whether it comes from the Hydraulic Pressure Unit (HPU), from the umbilical or from other parts of the oil contained lubrication and/or barrier fluid systems.
机翻摘要
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地址
代理人
代理机构
;
优先权号
2013US-61812297 2013-04-16 2014US-14784863 2014-04-15 2014WO-US34107 2014-04-15
主权利要求
(US20160076353) What is claimed is: 1.  A subsea system for processing a process fluid comprising: an electric motor filled with a barrier fluid that provides lubrication and a barrier between portions of the electric motor and surrounding seawater;   a rotating fluid processor driven by said electric motor and lubricated by said barrier fluid; and   a subsea barrier fluid filtration system comprising one or more separation components configured to separate contaminants from said barrier fluid by circulating a portion of the barrier fluid through the one or more separation components. 2. The system according to claim 1 wherein the contaminants include water in the barrier fluid. 3. The system according to claim 1 wherein the contaminants include particles in the barrier fluid. 4. The system according to claim 3 wherein the particles are separated by flowing at least a portion of the barrier fluid through a primary particle filtration medium. 5. The system according to claim 4 wherein said filtration system further comprises one or more bypass conduits configured to allow at least a portion of the barrier fluid to bypass the primary filtration medium. 6. The system according to claim 5 wherein said filtration system further comprises a secondary separation unit configured to provide contaminant separation in cases when said primary filtration medium is partially or completely clogged. 7. The system according to claim 6 wherein said secondary separation unit is configured to separate water contaminants by allowing for gravity collection of condensed water. 8. The system according to claim 6 wherein said secondary separation unit is configured to separate particle contaminants by gravity separation of the particle contaminants. 9. The system according to claim 5 wherein said filtration system is configured to allow greater than 2% of fluid flowing through the filtration system to flow though said one or more bypass conduits even when said primary filtration medium is clean. 10. The system according to claim 5 wherein said filtration system further comprises: a secondary particle filtration medium downstream of the primary filtration medium; and   a second bypass conduit configured to allow at least a portion of the barrier fluid to bypass the secondary filtration medium. 11. The system according to claim 1 wherein said contaminants includes water, and the one or more separation components comprises a water coalescer configured to mechanically coalesce water droplets in the barrier fluid. 12. The system according to claim 11 wherein the one or more separation components further comprises a water filter unit that includes a water separation membrane configured to block coalesced water droplets from passing through the membrane. 13. The system according to claim 2 wherein the filtration system further comprises a water collection volume configured to store water separated from the barrier fluid. 14. The system according to claim 1 wherein said one or more separation components comprises a magnetic separation unit configured to extract at least magnetically susceptible material from the barrier fluid. 15. The system according to claim 1 wherein the rotating fluid processor is a subsea pump. 16. The system according to claim 1 wherein the rotating fluid processor is a subsea compressor. 17. The system according to claim 1 further comprising a barrier fluid cooling system configured to cool at least a portion of the barrier fluid, said cooling system and said filtration system configured in parallel with each other. 18. A method of processing a process fluid in a subsea location comprising: powering a subsea electric motor;   circulating a barrier fluid through the electric motor to lubricate and insulate the motor and provide a barrier between portions of the electric motor and surrounding seawater;   driving a subsea rotating fluid processor with the subsea motor thereby processing the process fluid; and   filtering the barrier fluid using a subsea barrier fluid filtration system by circulating at least a portion of the barrier fluid through one or more separation components, thereby removing contaminants from said barrier fluid. 19. The method according to claim 18 wherein said filtering comprises: flowing at least a portion of the barrier fluid through one or more bypass conduits configured to bypass a primary filtration medium; and   separating contaminants from the barrier fluid using a secondary separation unit downstream of said one or more bypass conduits thereby separating contaminants in cases when said primary filtration medium is partially or completely clogged. 20. The method according to claim 19 wherein said filtering further comprises flowing at least a portion of the barrier fluid through one or more secondary bypass conduits configured to bypass a secondary filtration medium which is downstream of the secondary separation unit, thereby separating contaminants from the barrier fluid using the secondary separation unit in cases when the primary and secondary filtration media are partially or completely clogged. 21. The method according to claim 20 wherein said contaminants separated using said secondary separation unit includes water. 22. The method according to claim 21 wherein said contaminants separated using said secondary separation unit includes particles. 23. The method according to claim 18 wherein said one or more separation components comprises: a water coalescer configured to mechanically coalesce water droplets in the barrier fluid; and   a water filter unit that includes a water separation membrane configured to block coalesced water droplets from passing through the membrane. 24. The method according to claim 18 wherein said one or more separation components comprises a magnetic separation unit configured to extract at least magnetically susceptible material from the barrier fluid. 25. The method according to claim 18 wherein said subsea rotating fluid processor is a subsea pump. 26. The method according to claim 18 wherein said subsea rotating fluid processor is a subsea compressor. 27. The method according to claim 18 further comprising deploying an ROV to remove separated water from said filtration system. 28. A subsea system for processing a process fluid comprising: a subsea machine at least partially filled with a barrier fluid that provides lubrication and a barrier between portions of the electric motor and surrounding seawater; and   a subsea barrier fluid filtration system comprising one or more separation components configured to separate contaminants from said barrier fluid by circulating a portion of the barrier fluid through the one or more separation components. 29. The system according to claim 28 wherein said subsea machine is a non-electrical machine. 30. The system according to claim 28 wherein said subsea non-electrical machine is a mechanical gearbox.
法律状态
(US20160076353) LEGAL DETAILS FOR US2016076353  Actual or expected expiration date=2034-04-15    Legal state=ALIVE    Status=PENDING     Event publication date=2014-04-15  Event code=US/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=US US14784863  Application date=2014-04-15  Standardized application number=2014US-14784863     Event publication date=2015-10-15  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: FRAMO ENGINEERING AS, NORWAY  Effective date of the event=2013-04-22  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:BERLE, ATLE ROGNE, RAYMOND REEL/FRAME:036803/0717     Event publication date=2015-10-15  Event code=US/AS  Event type=Change of name or address  Event type=Reassignment  Assignment OWNER: FRAMO ENGINEERING AS, NORWAY  Effective date of the event=2013-04-22  ASSIGNMENT OF ASSIGNORS INTEREST ASSIGNORS:BERLE, ATLE ROGNE, RAYMOND REEL/FRAME:036803/0717     Event publication date=2016-03-17  Event code=US/A1  Event type=Examination events  Application published  Publication country=US  Publication number=US2016076353  Publication stage Code=A1  Publication date=2016-03-17  Standardized publication number=US20160076353
专利类型码
A1
国别省市代码
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