NO323681B1 - Forbedring av reservoarkommunikasjonen med en bronn - Google Patents
Forbedring av reservoarkommunikasjonen med en bronn Download PDFInfo
- Publication number
- NO323681B1 NO323681B1 NO20024156A NO20024156A NO323681B1 NO 323681 B1 NO323681 B1 NO 323681B1 NO 20024156 A NO20024156 A NO 20024156A NO 20024156 A NO20024156 A NO 20024156A NO 323681 B1 NO323681 B1 NO 323681B1
- Authority
- NO
- Norway
- Prior art keywords
- chamber
- pressure
- tool string
- perforation
- valve
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims description 19
- 239000012530 fluid Substances 0.000 claims description 92
- 230000015572 biosynthetic process Effects 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 39
- 239000002360 explosive Substances 0.000 claims description 26
- 238000012856 packing Methods 0.000 claims description 25
- 239000004576 sand Substances 0.000 claims description 16
- 230000004913 activation Effects 0.000 claims description 10
- 230000003213 activating effect Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 description 66
- 238000005474 detonation Methods 0.000 description 24
- 239000007789 gas Substances 0.000 description 22
- 238000010304 firing Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 21
- 230000007246 mechanism Effects 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012806 monitoring device Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- NIOPZPCMRQGZCE-WEVVVXLNSA-N 2,4-dinitro-6-(octan-2-yl)phenyl (E)-but-2-enoate Chemical compound CCCCCCC(C)C1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1OC(=O)\C=C\C NIOPZPCMRQGZCE-WEVVVXLNSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E21B43/02—Subsoil filtering
- E21B43/04—Gravelling of wells
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
- E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
-
- 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
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
- E21B43/1195—Replacement of drilling mud; decrease of undesirable shock waves
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- External Artificial Organs (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18650000P | 2000-03-02 | 2000-03-02 | |
| US18790000P | 2000-03-08 | 2000-03-08 | |
| US25275400P | 2000-11-22 | 2000-11-22 | |
| US09/797,209 US6598682B2 (en) | 2000-03-02 | 2001-03-01 | Reservoir communication with a wellbore |
| PCT/US2001/007028 WO2001065060A1 (fr) | 2000-03-02 | 2001-03-02 | Amelioration de la communication des reservoirs avec un puits de forage |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20024156D0 NO20024156D0 (no) | 2002-08-30 |
| NO20024156L NO20024156L (no) | 2002-10-28 |
| NO323681B1 true NO323681B1 (no) | 2007-06-25 |
Family
ID=27497675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20024156A NO323681B1 (no) | 2000-03-02 | 2002-08-30 | Forbedring av reservoarkommunikasjonen med en bronn |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6598682B2 (fr) |
| AU (1) | AU2001247284A1 (fr) |
| CA (1) | CA2401184C (fr) |
| GB (1) | GB2377465B (fr) |
| NO (1) | NO323681B1 (fr) |
| WO (1) | WO2001065060A1 (fr) |
Families Citing this family (98)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7287589B2 (en) * | 2000-03-02 | 2007-10-30 | Schlumberger Technology Corporation | Well treatment system and method |
| US7036594B2 (en) * | 2000-03-02 | 2006-05-02 | Schlumberger Technology Corporation | Controlling a pressure transient in a well |
| US7182138B2 (en) | 2000-03-02 | 2007-02-27 | Schlumberger Technology Corporation | Reservoir communication by creating a local underbalance and using treatment fluid |
| US7451819B2 (en) * | 2000-03-02 | 2008-11-18 | Schlumberger Technology Corporation | Openhole perforating |
| US6732798B2 (en) * | 2000-03-02 | 2004-05-11 | Schlumberger Technology Corporation | Controlling transient underbalance in a wellbore |
| US7284612B2 (en) * | 2000-03-02 | 2007-10-23 | Schlumberger Technology Corporation | Controlling transient pressure conditions in a wellbore |
| US7117946B2 (en) * | 2001-08-03 | 2006-10-10 | Wolfgang Herr | In-situ evaporation |
| CA2412072C (fr) | 2001-11-19 | 2012-06-19 | Packers Plus Energy Services Inc. | Methode et appareil pour le traitement de fluides de forage |
| US8091477B2 (en) * | 2001-11-27 | 2012-01-10 | Schlumberger Technology Corporation | Integrated detonators for use with explosive devices |
| GB0203386D0 (en) * | 2002-02-13 | 2002-03-27 | Sps Afos Group Ltd | Wellhead seal unit |
| US8167047B2 (en) | 2002-08-21 | 2012-05-01 | Packers Plus Energy Services Inc. | Method and apparatus for wellbore fluid treatment |
| US7493958B2 (en) * | 2002-10-18 | 2009-02-24 | Schlumberger Technology Corporation | Technique and apparatus for multiple zone perforating |
| US7246659B2 (en) * | 2003-02-28 | 2007-07-24 | Halliburton Energy Services, Inc. | Damping fluid pressure waves in a subterranean well |
| GB2406865B (en) * | 2003-10-06 | 2006-11-15 | Schlumberger Holdings | Well treatment system and method |
| US7913498B2 (en) * | 2003-11-06 | 2011-03-29 | Schlumberger Technology Corporation | Electrical submersible pumping systems having stirling coolers |
| US20050097911A1 (en) * | 2003-11-06 | 2005-05-12 | Schlumberger Technology Corporation | [downhole tools with a stirling cooler system] |
| US7240733B2 (en) * | 2004-03-30 | 2007-07-10 | Kirby Hayes Incorporated | Pressure-actuated perforation with automatic fluid circulation for immediate production and removal of debris |
| US7213648B2 (en) * | 2004-03-30 | 2007-05-08 | Kirby Hayes Incorporated | Pressure-actuated perforation with continuous removal of debris |
| US7243725B2 (en) * | 2004-05-08 | 2007-07-17 | Halliburton Energy Services, Inc. | Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
| US7478555B2 (en) * | 2005-08-25 | 2009-01-20 | Schlumberger Technology Corporation | Technique and apparatus for use in well testing |
| US8620636B2 (en) * | 2005-08-25 | 2013-12-31 | Schlumberger Technology Corporation | Interpreting well test measurements |
| US8151882B2 (en) * | 2005-09-01 | 2012-04-10 | Schlumberger Technology Corporation | Technique and apparatus to deploy a perforating gun and sand screen in a well |
| CA2544818A1 (fr) * | 2006-04-25 | 2007-10-25 | Precision Energy Services, Inc. | Methode et appareillage de perforation d'un tubage et de production d'hydrocarbures |
| US8118098B2 (en) * | 2006-05-23 | 2012-02-21 | Schlumberger Technology Corporation | Flow control system and method for use in a wellbore |
| CN103556946A (zh) | 2006-11-07 | 2014-02-05 | 哈利伯顿能源服务公司 | 钻井方法 |
| US7980308B2 (en) * | 2006-11-20 | 2011-07-19 | Baker Hughes Incorporated | Perforating gun assembly and method for controlling wellbore fluid dynamics |
| US7770648B2 (en) * | 2007-03-16 | 2010-08-10 | Baker Hughes Incorporated | Completion method for well cleanup and zone isolation |
| WO2009072036A1 (fr) * | 2007-12-03 | 2009-06-11 | Schlumberger Canada Limited | Procédés de forage utilisant des fluides tensioactifs viscoélastiques et des compositions associées |
| US7640986B2 (en) * | 2007-12-14 | 2010-01-05 | Schlumberger Technology Corporation | Device and method for reducing detonation gas pressure |
| US7712532B2 (en) * | 2007-12-18 | 2010-05-11 | Schlumberger Technology Corporation | Energized fluids and pressure manipulation for subsurface applications |
| US7661366B2 (en) * | 2007-12-20 | 2010-02-16 | Schlumberger Technology Corporation | Signal conducting detonating cord |
| US8757273B2 (en) | 2008-04-29 | 2014-06-24 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
| US8186444B2 (en) * | 2008-08-15 | 2012-05-29 | Schlumberger Technology Corporation | Flow control valve platform |
| US7861784B2 (en) * | 2008-09-25 | 2011-01-04 | Halliburton Energy Services, Inc. | System and method of controlling surge during wellbore completion |
| US20100132946A1 (en) | 2008-12-01 | 2010-06-03 | Matthew Robert George Bell | Method for the Enhancement of Injection Activities and Stimulation of Oil and Gas Production |
| US8726995B2 (en) * | 2008-12-01 | 2014-05-20 | Geodynamics, Inc. | Method for the enhancement of dynamic underbalanced systems and optimization of gun weight |
| US9080431B2 (en) * | 2008-12-01 | 2015-07-14 | Geodynamics, Inc. | Method for perforating a wellbore in low underbalance systems |
| NO329366B1 (no) * | 2008-12-09 | 2010-10-04 | Aker Well Service As | Fremgangsmate og anordning for a rense et hulrom i en petroleumsbronn ved hjelp av en detonerbar ladning |
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| US8424606B2 (en) * | 2008-12-27 | 2013-04-23 | Schlumberger Technology Corporation | Method and apparatus for perforating with reduced debris in wellbore |
| US20100169019A1 (en) * | 2008-12-27 | 2010-07-01 | Schlumberger Technology Corporation | Formation evaluation using local dynamic under-balance in perforating |
| US7934558B2 (en) * | 2009-03-13 | 2011-05-03 | Halliburton Energy Services, Inc. | System and method for dynamically adjusting the center of gravity of a perforating apparatus |
| US9080430B2 (en) * | 2009-06-03 | 2015-07-14 | Schlumberger Technology Corporation | Device for the dynamic under balance and dynamic over balance perforating in a borehole |
| DK178500B1 (en) | 2009-06-22 | 2016-04-18 | Maersk Olie & Gas | A completion assembly for stimulating, segmenting and controlling ERD wells |
| US8555764B2 (en) | 2009-07-01 | 2013-10-15 | Halliburton Energy Services, Inc. | Perforating gun assembly and method for controlling wellbore pressure regimes during perforating |
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| US9567843B2 (en) * | 2009-07-30 | 2017-02-14 | Halliburton Energy Services, Inc. | Well drilling methods with event detection |
| US8215397B2 (en) * | 2009-12-30 | 2012-07-10 | Schlumberger Technology Corporation | System and method of dynamic underbalanced perforating using an isolation fluid |
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| US8734960B1 (en) | 2010-06-17 | 2014-05-27 | Halliburton Energy Services, Inc. | High density powdered material liner |
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| US8931389B2 (en) | 2011-08-20 | 2015-01-13 | James E. Brooks | High voltage explosive assembly for downhole detonations |
| MY172254A (en) | 2011-09-08 | 2019-11-20 | Halliburton Energy Services Inc | High temperature drilling with lower temperature drated tools |
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| CN104018809B (zh) * | 2014-04-22 | 2019-03-22 | 中国石油大学(华东) | 一种水下井口装置用冲洗工具 |
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| GB2550866B (en) | 2016-05-26 | 2019-04-17 | Metrol Tech Ltd | Apparatuses and methods for sensing temperature along a wellbore using semiconductor elements |
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| GB2550862B (en) * | 2016-05-26 | 2020-02-05 | Metrol Tech Ltd | Method to manipulate a well |
| GB2550863A (en) | 2016-05-26 | 2017-12-06 | Metrol Tech Ltd | Apparatus and method to expel fluid |
| BR112018074959B1 (pt) * | 2016-07-21 | 2022-10-11 | Landmark Graphics Corporation | Método para obstruir um furo de poço em uma única manobra, e, método para obstruir um poço em uma única manobra |
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| US11156057B2 (en) * | 2017-01-15 | 2021-10-26 | Jeffrey Bruce Wensrich | Downhole tool including a resettable plug with a flow-through valve |
| US11719084B2 (en) * | 2017-01-15 | 2023-08-08 | Jeffrey Bruce Wensrich | Bottom hole assembly including a resttable plug and associated methods of use |
| WO2018236339A1 (fr) * | 2017-06-19 | 2018-12-27 | Halliburton Energy Services, Inc. | Appareil de puits équipé d'un dispositif de régulation de débit activé à distance |
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| US12241021B2 (en) | 2018-05-11 | 2025-03-04 | Dorf Ketal Chemicals Fze | Method for fracking of simulation of hydrocarbon bearing formation |
| US11346184B2 (en) | 2018-07-31 | 2022-05-31 | Schlumberger Technology Corporation | Delayed drop assembly |
| US10858919B2 (en) | 2018-08-10 | 2020-12-08 | Gr Energy Services Management, Lp | Quick-locking detonation assembly of a downhole perforating tool and method of using same |
| US11078763B2 (en) | 2018-08-10 | 2021-08-03 | Gr Energy Services Management, Lp | Downhole perforating tool with integrated detonation assembly and method of using same |
| US11994008B2 (en) | 2018-08-10 | 2024-05-28 | Gr Energy Services Management, Lp | Loaded perforating gun with plunging charge assembly and method of using same |
| CN109339761B (zh) * | 2018-11-16 | 2024-06-25 | 屈波 | 用于油气储层的流体注入和引爆装置 |
| CN111140202A (zh) * | 2020-01-13 | 2020-05-12 | 中国石油天然气股份有限公司 | 深井超深井一体化投产完井管柱及其操作方法 |
| EP4006299B1 (fr) | 2020-11-30 | 2025-07-09 | Services Pétroliers Schlumberger | Procédé et système de test automatique en boucle fermée de réservoir de fond de trou multi-zone |
| US12252957B2 (en) | 2022-01-27 | 2025-03-18 | Saudi Arabian Oil Company | Pressure-pulsing for effective mudcake removal |
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|---|---|---|---|---|
| US3760878A (en) | 1972-03-16 | 1973-09-25 | Amoco Prod Co | Perforations washing tool |
| US4175042A (en) | 1976-10-26 | 1979-11-20 | Texas Brine Corporation | Well completion and work over fluid and method of use |
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| US4576233A (en) | 1982-09-28 | 1986-03-18 | Geo Vann, Inc. | Differential pressure actuated vent assembly |
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| US4619325A (en) | 1985-01-29 | 1986-10-28 | Halliburton Company | Well surging method and system |
| US4621692A (en) | 1985-03-28 | 1986-11-11 | Texas United Chemical Corp. | Water soluble perforation pack |
| US4805726A (en) | 1985-11-12 | 1989-02-21 | Schlumberger Technology Corporation | Controlled implosive downhole seismic source |
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| US5103912A (en) * | 1990-08-13 | 1992-04-14 | Flint George R | Method and apparatus for completing deviated and horizontal wellbores |
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| GB9923200D0 (en) | 1999-10-01 | 1999-12-01 | Andertech Limited | Fluid extraction |
| US6206100B1 (en) | 1999-12-20 | 2001-03-27 | Osca, Inc. | Separable one-trip perforation and gravel pack system and method |
-
2001
- 2001-03-01 US US09/797,209 patent/US6598682B2/en not_active Expired - Lifetime
- 2001-03-02 WO PCT/US2001/007028 patent/WO2001065060A1/fr not_active Ceased
- 2001-03-02 GB GB0218972A patent/GB2377465B/en not_active Expired - Lifetime
- 2001-03-02 AU AU2001247284A patent/AU2001247284A1/en not_active Abandoned
- 2001-03-02 CA CA002401184A patent/CA2401184C/fr not_active Expired - Lifetime
-
2002
- 2002-08-30 NO NO20024156A patent/NO323681B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2377465A (en) | 2003-01-15 |
| NO20024156D0 (no) | 2002-08-30 |
| CA2401184A1 (fr) | 2001-09-07 |
| WO2001065060A1 (fr) | 2001-09-07 |
| US20020020535A1 (en) | 2002-02-21 |
| US6598682B2 (en) | 2003-07-29 |
| GB2377465B (en) | 2004-09-22 |
| AU2001247284A1 (en) | 2001-09-12 |
| CA2401184C (fr) | 2007-05-22 |
| NO20024156L (no) | 2002-10-28 |
| GB0218972D0 (en) | 2002-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |