US20050178556A1 - Subsea hydrocarbon production system - Google Patents
Subsea hydrocarbon production system Download PDFInfo
- Publication number
- US20050178556A1 US20050178556A1 US10/518,209 US51820904A US2005178556A1 US 20050178556 A1 US20050178556 A1 US 20050178556A1 US 51820904 A US51820904 A US 51820904A US 2005178556 A1 US2005178556 A1 US 2005178556A1
- Authority
- US
- United States
- Prior art keywords
- subsea
- developments
- fluid
- subsea developments
- hydrocarbon
- 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.)
- Abandoned
Links
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 25
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 25
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title description 11
- 238000011161 development Methods 0.000 claims abstract description 94
- 230000018109 developmental process Effects 0.000 claims abstract description 94
- 239000012530 fluid Substances 0.000 claims abstract description 90
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000000470 constituent Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/017—Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station
Abstract
A system (1) for extracting subsea hydrocarbon fluid has five discrete subsea developments (10, 12, 14, 16, 18) for hydrocarbon extraction linked to four hydrocarbon receiving facilities (2, 4, 6, 8) by a pipeline network (94). Each subsea development (10, 12, 14, 16, 18) has a manifold to which pipelines of the network (94) are connected, and a pair of retrievable modules (22) docked on the manifold. Each module has a control pod which is able to control flows of fluids between the subsea developments and between the subsea developments and the receiving facilities, and each control pod is connected to monitoring devices for monitoring parameters pertaining to the subsea developments. Parameters are monitored at a first one of the subsea developments and a requirement for a first fluid type is identified and parameters at another second one of the subsea developments are monitored and a surplus of the first fluid type is identified. The relevant control pods are then operated to enable a quantity of the first fluid to be conveyed from the second to the first subsea development via the pipeline network (94).
Description
- The present invention relates to a system and method for extracting hydrocarbons from subsea reservoirs and more particularly to a system including plural geographically separate fields.
- Where plural separate fields are to be exploited, a host facility is normally provided with fluid pipelines, control/power lines etc. radiating out therefrom to extraction facilities at different locations. Each extraction facility may include a central unit connected to receive fluid from a plurality of wells. This fluid may include a mixture of fluids including hydrocarbon liquid, hydrocarbon gas and water, the volumetric ratios of which to each other will vary considerably from field to field and throughout the life of a particular field. In certain situations the extraction facilities are connected to each other in series in a so-called daisy chain arrangement, the series connected extraction facilities being connected to a host facility. In general, the majority of the fluid produced by the fields is all conveyed to the host facility and if any fluid needs to be provided at an extraction facility (e.g. water for pressure boosting injection into a subsea reservoir) it is pumped from the host facility to the particular extraction facility. The capital cost associated with installing the pipelines for conveying the fluids is very high and any cost saving resulting from the pipelines being designed for a lower volumetric throughput is extremely desirable. It is also desirable to minimise the amount of water which is returned to the host facility because water so returned needs extensive processing prior to disposal overboard and can accordingly incur a tariff. A further drawback with existing series connected or radially connected extraction facilities is that if a pipeline needs to be taken out of service for any reason, then the flow of fluid being conveyed by the pipeline is interrupted which may effectively result in the shutting in of one or more fields. In addition to reducing production output, such shutting in may also make it difficult to restart the wells from those fields.
- Taking the above drawbacks of prior art systems into consideration, the invention provides a system for extracting subsea hydrocarbon fluid comprising at least three discrete subsea developments for hydrocarbon extraction and a hydrocarbon receiving facility linked by a pipeline network configured to permit:
-
- (a) diversion of fluid from at least one of the subsea developments selectively to one or more of the other developments; and
- (b) conveyance of fluid from each of the subsea developments to the receiving facility.
- With such a system, if a first subsea development is providing a surplus of one type of fluid (e.g. water) and a second subsea development requires more of that fluid to function effectively (e.g. for pressure boosting water injection) then water can be conveyed through the pipeline network from the first to the second subsea development. Alternatively, gas could be routed to a subsea development where gas compression is available so that the gas could be conveyed more effectively. Avoiding the requirement to: (a) convey surplus fluids to the receiving host facility; and (b) convey required fluids from the host to the subsea development will reduce the maximum throughput that the pipelines to and from the host are designed to accommodate and may even mean that the requirement for one or more pipelines is obviated. Furthermore, when water is used for well pressure boosting, the tariff paid to the host operator will be reduced or even eliminated.
- Fluids can accordingly be distributed around the pipeline network when needed depending on demand, thereby realising production efficiency.
- Preferably, the pipeline network is also configured to permit conveyance of fluid from at least one of the subsea developments to the receiving facility selectively via two alternative routes so that any work which needs to be carried out on the pipelines or other parts of the system can be performed with minimum interruption to the production process. Also, the pipeline network allows efficient use of pipeline capacities.
- The system preferably includes a plurality of receiving facilities, the pipeline network being configured to permit conveyance of fluid from each of the developments to any of the receiving facilities. Each receiving facility may be in the form of an offshore oil rig which may be floating or seabed supported, an on-shore host facility or a floating storage and production unit. With such an arrangement, if one receiving facility only has the capability of catering for one type of fluid (e.g. liquid) and another receiving facility has the capability of catering for several fluid types (e.g. liquid and gas) then the flow of fluids through the pipeline network can be controlled to route the produced fluids to appropriate receiving facilities. Furthermore, if the maximum capacity of a particular receiving facility is reached or if a receiving facility becomes unavailable for use, possibly because of political factors or because of maintenance requirements, then it will be easily possible to divert produced fluids to an alternative receiving facility.
- To increase the flexibility of the system, the pipeline network preferably includes, between at least two of the developments, plural pipelines suitable for respectively conveying different fluids such as hydrocarbon liquid, hydrocarbon gas and water.
- The system preferably also includes a control means for controlling flows of fluids between the subsea developments and between the developments and the or each receiving facility.
- The subsea developments and the one or more receiving facilities may also be connected by a network of power and/or control lines and/or chemical injection lines for conveying electric and/or hydraulic power and/or control signals and/or chemical injection fluids. These power and control lines and chemical injection lines conveniently follow the same routes as those followed by the pipes of the pipeline network but need not do so. With such an arrangement, the network could be used to distribute power and/or control signals to the subsea developments and also possibly to an offshore host facility via a choice of routes.
- The control means may employ advanced computer protocols to standardise control hardware used to control the operation of the subsea developments and the flow of fluids therebetween through the pipeline network. Such a control means would preferably operate by automatically sensing what items of hardware were in use at a particular subsea development. Each item of hardware may include an electronic chip containing identification information.
- The control system may enable control of production rates and flow distribution in the pipeline network from a remote location which, by the use of global satellite communications, could be anywhere in the world. Control could be effected from any suitable input/receiving device such as a personal computer, a personal digital assistant, a mobile telephone etc.
- The control system may also include means to calculate the best place to store or dispose of a particular fluid thereby ensuring efficient use of the produced fluids.
- By providing a control system which controls the distribution of fluids, power and control over a large seabed area and between the plurality of subsea developments, the need for host platforms serving groups of subsea developments will be at least reduced.
- The control means may include signal processing means located at the subsea developments which communicate with each other and can control, at least to a limited extent, the distribution of fluids around the pipeline network, possibly independently of the host or receiving facility.
- The control means preferably includes, at at least one of the subsea developments, a monitoring means for monitoring parameters pertaining to that subsea development.
- Preferably at least one of the subsea developments includes separating means for at least substantially separating constituent components of fluid received by the development from each other.
- In order to increase the flexibility of the system and permit each subsea development to be adapted as the requirement on it changes, at least one and preferably each of the subsea developments comprises a manifold to which pipelines of the network are connected and at least one retrievable module including equipment for acting on fluid received thereby and docked with the manifold for fluid connection to the pipeline network. Such equipment is designed by Alpha Thames Ltd of Essex, United Kingdom, and marketed under the name AlphaPRIME. With such an arrangement, as the requirement of a particular subsea development changes, a module in the development can be replaced by an alternative one with different processing capabilities.
- According to a second aspect of the invention, there is provided a method of operating a system for extracting subsea hydrocarbon fluid, the system comprising plural discrete subsea developments for hydrocarbon extraction and a hydrocarbon receiving facility linked by a pipeline network and control means for controlling flows of fluids between the subsea developments and between the subsea developments and the receiving facility, the control means including monitoring means for monitoring parameters pertaining to the subsea developments, the method comprising the steps of:
-
- (i) monitoring parameters at a first subsea development and identifying a requirement for a first fluid type;
- (ii) monitoring parameters at a second subsea development and identifying a surplus of the first fluid type; and
- (iii) operating the control means to convey a quantity of the first fluid from the second to the first subsea development via the pipeline network.
- Preferably the system includes plural receiving facilities and at least one of the subsea developments includes separating means for at least substantially separating constituent components of fluid received by the development from each other, the method including the steps of:
-
- (i) at least substantially separating fluid received by the subsea developments into first and second fluid types;
- (ii) conveying the first fluid type to one of the receiving facilities; and
- (iii) conveying the second fluid type to another of the receiving facilities.
- The invention will now be described by way of example only with reference to the accompanying schematic drawings in which:
-
FIG. 1 shows a system according to the invention for extracting hydrocarbons from plural subsea developments; and -
FIG. 2 shows a typical module for use in one of the subsea developments shown inFIG. 1 . - The
system 1 shown inFIG. 1 includes four receiving facilities, two of which 2, 4 are shore-based, one of which comprises an offshore fixedplatform 6 and one of which comprises a floating production andstorage unit 8. The system also includes fivesubsea developments base structure 20 containing one or more piping manifolds to which one or moreretrievable modules 22 are connected. The system shown inFIG. 1 includesbase structures 20 all configured to accept two modules. Each base structure could alternatively be configured to accept any other number of modules.Plural wellheads 32 supply production fluid to the manifolds in the associatedbase 20 by means ofproduction fluid conduits 34. - A typical
retrievable module 22 is shown inFIG. 2 which is designed to effect separation of two fluids (e.g. liquid such as oil and gas) from each other. Each module could however be configured in an alternative manner depending on requirements. The modules could for example be configured to separate three fluids from each other by means of three phase separators or simply route fluid round a loop and into an output pipe of the manifold in the base structure. - The
module 22 includes amodule part 24 of a multi-ported fluid connector 27 which is adapted to mate with acomplementary base part 26 thereof forming part of thebase 20. Eachconnector part isolation valves module 22 when it is to be replaced. Production fluid from theproduction fluid conduits 34 is routed to the module byfluid inlet pipes 36 in thebase 20 via the multi-ported fluid connector 27 and intoinlet conduits 38. The flow through theinlet conduits 38 is regulated bypressure control valves 40 which are adjusted byactuators 42 under the control of acontrol module 44. Electrical signal lines are shown with dashed lines and fluid conduits and pipes are shown with solid lines inFIG. 2 . - The
control module 44 receives power from apower line 46 via adisengageable power connector 48 and atransformer 49, and signals from asignal line 50 via adisengageable signal connector 52.Pressure transducers 54 monitor pressure in theinlet conduit 38 and if over-pressurisation is detected,actuators 56 of two series connected fail-safeclosed valves 58 are de-powered to allow thevalves 58 to close. Fluid from theinlet conduit 38 is routed into aseparation vessel 60 where hydrocarbon gas 62 is separated from producedliquid 64. The separator may be a gravity separator as shown or a dynamic separator such as a hydro-cyclone separator. Gas is routed out of thevessel 60 and through agas outlet conduit 66, agas compressor 68 and aventuri meter 70. Produced liquid 64 is routed via aliquid outlet conduit 72, aliquid pump 74 and aflow control valve 76 controlled by anactuator 78 to the multi-ported fluid connector 27. The interface between the gas 62 and producedliquid 64 is detected by alevel sensor 80, the output from which is used to control theflow control valve 76. Partial closing of theflow control valve 76 forces produced liquid to be returned to theseparator vessel 60 via aflow restrictor 82 and aliquid recirculation pipe 84. This would be effected if the interface between the gas and the produced liquid in thevessel 60 became too low. Injection chemicals are routed to the module viachemical injection connectors 86 andchemical injection lines 88 from which chemicals can be injected into the gas andliquid outlet conduits module 22 by agas outlet pipe 90 and aliquid outlet pipe 92 constituting part of the manifold system in thebase structure 20. - The pipework manifold in each
base structure 20 is connected by a pipeline network to the pipework manifold of at least two other subsea developments and in certain cases one of thereceiving facilities FIG. 1 by solid lines extending between the subsea developments and the receiving facilities. Although only one line is shown extending between the subsea developments/receiving facilities or nodes of the network, eachinternodal pipeline connection 94 may include plural pipelines. Separate pipelines may be provided for oil, gas, water, injection chemicals and/or test flows for example. A network of internodal signal or power andcontrol lines 96 also extends between the subsea developments and the receiving facilities which signal lines are shown by broken lines. The signal line network is shown to have the same internodal connections as the pipeline network. These two networks may not necessarily be coincident however and some of the signal lines may for example be replaced by communication links via some remote receiving and transmitting means, eg a satellite communication system. - When the
system 1 shown inFIG. 1 is operating, continuous or periodic communication between individual subsea developments and between the subsea developments and one or more of the receiving facilities will take place by means of a data bus constituted by the signal line network. Thecontrol module 44 of eachretrievable module 22 will be configured to transmit information via the data bus concerning the operation of eachretrievable module 22 including information such as the quantity of one or more fluids being received and/or separated by the module, the pressure sensed by some or all of thepressure sensors 54 etc. Thecontrol module 44 will also be adapted to receive such information from other subsea developments via the data bus. Some or all of this information will also be transmitted to thereceiving facilities - Valves (not shown) arranged to control the flows of fluids between the subsea developments and between the subsea developments and the receiving facilities will be controlled to route fluids in an appropriate manner through the network of
internodal pipelines 94. The control of the valves may be effected directly as a result of communication between two or more subsea developments or may involve communication with one of the host facilities or even some remote control means possibly via satellite or other like communication systems. The subsea developments or nodes can accordingly act as separation, diverter or boosting stations depending on demand. Furthermore, power and control signals and subsea development supporting fluids such as injection water and chemicals have alternative routes from a selected host to a particular subsea development. - An ideal medium for incorporation into the network system described above would be one using advanced computer protocols enabling computer control hardware to be standardised. By using multi-layered hardware and software architecture, changes to the system (e.g. changing one type of removable module for another having a different function) could be readily catered for. Control software and hardware could be arranged to automatically recognise that the change had occurred and communicate with the control module of the new removable module appropriately. To avoid the requirement of changing control system hardware, it is capable of being remotely upgraded by software methods to take account of the installation of the new module or other apparatus.
Claims (18)
1. A system for extracting subsea hydrocarbon fluid comprising at least three discrete subsea developments for hydrocarbon extraction and a hydrocarbon receiving facility linked by a pipeline network configured to permit:
(a) diversion of fluid from at least one of said subsea developments selectively to one or more of said other developments; and
(b) conveyance of fluid from each of said subsea developments to said receiving facility.
2. The system as claimed in claim 1 , wherein said pipeline network is also configured to permit conveyance of fluid from at least one of said subsea developments to said receiving facility selectively via at least two alternative routes.
3. The system as claimed in claim 1 comprising a plurality of receiving facilities, wherein said pipeline network is configured to permit conveyance of fluid from each of said subsea developments to any said receiving facility.
4. The system as claimed in claim 1 , wherein said pipeline network further comprises plural pipelines between at least two of said subsea developments, said pipelines being suitable for respectively conveying different fluids such as hydrocarbon liquid, hydrocarbon gas and water.
5. The system as claimed in claim 3 , comprising a control means for controlling flows of fluids between said subsea developments and between said subsea developments and at least one said receiving facility.
6. The system as claimed in claim 5 , wherein said control means comprises a monitoring means for monitoring parameters pertaining to at least one of said subsea developments.
7. The system as claimed in claim 5 , wherein said control means comprises signal processing means located at said subsea developments, wherein said subsea developments communicate thereby and control, at least to a limited extent, the distribution of fluids around said pipeline network.
8. The system as claimed in claim 5 , wherein the said control means is arranged to operate by automatically sensing what items of hardware are in use at a particular subsea development.
9. The system as claimed in claim 8 , wherein each said item of hardware comprises an electronic chip containing identification information.
10. The system as claimed in any claim 5 , comprising a remote input/receiving device for effecting control of the flow of said fluids.
11. The system as claimed in claim 5 , wherein said control means further comprises means to calculate the best place to store or dispose of a particular fluid.
12. The system as claimed in claim 1 , wherein at least one of said subsea developments comprises separating means for at least substantially separating constituent components of fluid received by said subsea development from each other.
13. The system as claimed in claim 1 , wherein at least one of said subsea developments comprises a manifold connected to said pipeline network; and
at least one retrievable module having equipment for acting on fluid received thereby;
wherein said module is docked with said manifold for fluid connection to said pipeline network.
14. The system as claimed in claim 3 , comprising a network of power lines between said subsea developments and each receiving facility for distributing power.
15. The system as claimed in claim 3 , comprising a network of control lines between said subsea developments and each said receiving facility for transmitting control signals.
16. The system as claimed in claim 3 , comprising a network of chemical injection lines between said subsea developments and each said 3receiving facility for conveying chemical injection fluids.
17. A method of operating a system for extracting subsea hydrocarbon fluid, the system comprising plural discrete subsea developments for hydrocarbon extraction and a hydrocarbon receiving facility linked by a pipeline network and control means for controlling flows of fluids between the subsea developments and between the subsea developments and the receiving facility, the control means comprising monitoring means for monitoring parameters pertaining to the subsea developments, the method comprising the steps of:
(i) monitoring parameters at a first subsea development and identifying a requirement for a first fluid type;
(ii) monitoring parameters at a second subsea development and identifying a surplus of the first fluid type; and
(iii) operating the control means to convey a quantity of the first fluid from the second to the first subsea development via the pipeline network.
18. The method as claimed in claim 17 , wherein the system comprises plural receiving facilities and at least one of the subsea developments comprises separating means for at least substantially separating constituent components of fluid received by the development from each other, the method comprising the steps of:
(i) at least substantially separating fluid received by the subsea developments into first and second fluid types;
(ii) conveying the first fluid type to one of the receiving facilities; and
(iii) conveying the second fluid type to another of the receiving facilities.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0215064.7A GB0215064D0 (en) | 2002-06-28 | 2002-06-28 | Subsea hydrocarbon production system |
GB0215064.7 | 2002-06-28 | ||
PCT/GB2003/002767 WO2004003339A1 (en) | 2002-06-28 | 2003-06-27 | Subsea hydrocarbon production system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050178556A1 true US20050178556A1 (en) | 2005-08-18 |
Family
ID=9939534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/518,209 Abandoned US20050178556A1 (en) | 2002-06-28 | 2003-06-27 | Subsea hydrocarbon production system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050178556A1 (en) |
EP (1) | EP1534923A1 (en) |
AU (1) | AU2003246912A1 (en) |
BR (1) | BR0312189A (en) |
GB (1) | GB0215064D0 (en) |
NO (1) | NO20050459L (en) |
WO (1) | WO2004003339A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040168811A1 (en) * | 2002-08-14 | 2004-09-02 | Bake Hughes Incorporated | Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
US20060175062A1 (en) * | 2005-07-29 | 2006-08-10 | Benson Robert A | Undersea well product transport |
WO2008036740A2 (en) * | 2006-09-21 | 2008-03-27 | Shell Oil Company | Systems and methods for drilling and producing subsea fields |
US20080210432A1 (en) * | 2004-05-03 | 2008-09-04 | Crossley Calvin W | System and Vessel for Supporting Offshore Fields |
US20080264642A1 (en) * | 2007-04-24 | 2008-10-30 | Horton Technologies, Llc | Subsea Well Control System and Method |
US20100332139A1 (en) * | 2007-11-16 | 2010-12-30 | Statoil Asa | Forming a geological model |
US20110046885A1 (en) * | 2007-12-20 | 2011-02-24 | Statoil Asa | Method of and apparatus for exploring a region below a surface of the earth |
WO2011037477A1 (en) * | 2009-09-25 | 2011-03-31 | Aker Subsea As | Integrated production manifold and multiphase pump station |
US20110290497A1 (en) * | 2010-05-28 | 2011-12-01 | Karl-Atle Stenevik | Subsea hydrocarbon production system |
US20120103624A1 (en) * | 2010-10-27 | 2012-05-03 | Shell Oil Company | Large-offset direct vertical access system |
US8400871B2 (en) | 2006-11-14 | 2013-03-19 | Statoil Asa | Seafloor-following streamer |
US9081111B2 (en) | 2010-04-01 | 2015-07-14 | Statoil Petroleum As | Method of providing seismic data |
WO2017074426A1 (en) * | 2015-10-30 | 2017-05-04 | Halliburton Energy Services, Inc. | Automated lift-gas balancing in oil production |
US11091990B2 (en) * | 2017-10-06 | 2021-08-17 | Petróleo Brasileiro S.A.—Petrobras | Underwater system and method for pressurization of an underwater oil reservoir by independent injection of water and gas |
EP4056803A1 (en) * | 2021-03-12 | 2022-09-14 | Nexans | Remote communication downline system |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2429278B (en) | 2005-08-15 | 2010-08-11 | Statoil Asa | Seismic exploration |
US7569097B2 (en) * | 2006-05-26 | 2009-08-04 | Curtiss-Wright Electro-Mechanical Corporation | Subsea multiphase pumping systems |
GB2545365B (en) * | 2010-05-28 | 2017-11-15 | Statoll Petroleum As | Subsea hydrocarbon production system |
AU2015203040B2 (en) * | 2010-05-28 | 2017-04-20 | Equinor Energy As | Subsea hydrocarbon production system |
BR112012030170B1 (en) * | 2010-05-28 | 2019-07-16 | Statoil Petroleum As | OIL AND / OR GAS UNDERWATER PRODUCTION SYSTEM, AND, UNDERWATER FOR USE IN AN OIL AND / OR GAS UNDERWATER PRODUCTION SYSTEM |
RU2604603C1 (en) * | 2015-05-22 | 2016-12-10 | Статойл Петролеум Ас | Underwater hydrocarbon production system |
RU2607487C1 (en) * | 2015-07-21 | 2017-01-10 | Статойл Петролеум Ас | Underwater hydrocarbon production system |
WO2020097534A1 (en) * | 2018-11-09 | 2020-05-14 | Schlumberger Technology Corporation | Pipeline network solving using decomposition procedure |
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- 2002-06-28 GB GBGB0215064.7A patent/GB0215064D0/en not_active Ceased
-
2003
- 2003-06-27 US US10/518,209 patent/US20050178556A1/en not_active Abandoned
- 2003-06-27 AU AU2003246912A patent/AU2003246912A1/en not_active Abandoned
- 2003-06-27 EP EP03761690A patent/EP1534923A1/en not_active Withdrawn
- 2003-06-27 BR BR0312189-5A patent/BR0312189A/en not_active Application Discontinuation
- 2003-06-27 WO PCT/GB2003/002767 patent/WO2004003339A1/en not_active Application Discontinuation
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2005
- 2005-01-27 NO NO20050459A patent/NO20050459L/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
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EP1534923A1 (en) | 2005-06-01 |
WO2004003339A1 (en) | 2004-01-08 |
AU2003246912A1 (en) | 2004-01-19 |
GB0215064D0 (en) | 2002-08-07 |
BR0312189A (en) | 2005-04-26 |
NO20050459L (en) | 2005-03-23 |
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