CO4600753A1 - Fluido de perforacion con propiedades mejoradas - Google Patents
Fluido de perforacion con propiedades mejoradasInfo
- Publication number
- CO4600753A1 CO4600753A1 CO96065983A CO96065983A CO4600753A1 CO 4600753 A1 CO4600753 A1 CO 4600753A1 CO 96065983 A CO96065983 A CO 96065983A CO 96065983 A CO96065983 A CO 96065983A CO 4600753 A1 CO4600753 A1 CO 4600753A1
- Authority
- CO
- Colombia
- Prior art keywords
- drilling fluid
- improved properties
- particles
- elasticity
- graphite carbon
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 239000002245 particle Substances 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 229910002804 graphite Inorganic materials 0.000 abstract 2
- 239000010439 graphite Substances 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/16—Clay-containing compositions characterised by the inorganic compounds other than clay
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/5045—Compositions based on water or polar solvents containing inorganic compounds
-
- 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
- E21B21/003—Means for stopping loss of drilling fluid
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/906—Solid inorganic additive in defined physical form
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S507/00—Earth boring, well treating, and oil field chemistry
- Y10S507/91—Earth boring fluid devoid of discrete aqueous phase
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Lubricants (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Un método de mejorar las propiedades de un fluido deperforación de pozos que comprende el paso de añadir al fluido de perforación, partículas de carbón grafítico elásticas. El método de la reivindicación, en donde dichas partículas tienen una elasticidad de más de aproximadamente 30% de rebote después de comprensión a 68MN/m2 . El método de la reivindicación 2, en donde dicha elasticidad es entre aproximadamente 100 y 150%. El método de la reivindicación, en donde dichas partículas son mayores de aproximadamente 75 µm. El método de la reivindicación 1, en donde de aproximadamente el 90% de las partículas de carbón grafítico es entre 850 µm y 75 µm.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US865395P | 1995-12-15 | 1995-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CO4600753A1 true CO4600753A1 (es) | 1998-05-08 |
Family
ID=21732888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CO96065983A CO4600753A1 (es) | 1995-12-15 | 1996-12-16 | Fluido de perforacion con propiedades mejoradas |
Country Status (14)
Country | Link |
---|---|
US (1) | US5826669A (es) |
EP (1) | EP0866842B1 (es) |
AR (1) | AR004370A1 (es) |
AU (1) | AU1410297A (es) |
CA (1) | CA2240290C (es) |
CO (1) | CO4600753A1 (es) |
DE (1) | DE69632831T2 (es) |
DK (1) | DK0866842T3 (es) |
DZ (1) | DZ2143A1 (es) |
EA (1) | EA000357B1 (es) |
EG (1) | EG21132A (es) |
NO (1) | NO314591B2 (es) |
SA (1) | SA97170710B1 (es) |
WO (1) | WO1997022677A1 (es) |
Families Citing this family (80)
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US20030203822A1 (en) * | 1996-07-24 | 2003-10-30 | Bradbury Andrew J. | Additive for increasing the density of a fluid for casing annulus pressure control |
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US6786153B2 (en) * | 2002-09-19 | 2004-09-07 | Interflex Laser Engravers, Llc | Printing rolls having wear indicators and methods for determining wear of printing and anilox rolls and sleeves |
US7267291B2 (en) * | 1996-07-24 | 2007-09-11 | M-I Llc | Additive for increasing the density of an oil-based fluid and fluid comprising such additive |
US6152227A (en) * | 1997-10-24 | 2000-11-28 | Baroid Technology, Inc. | Drilling and cementing through shallow waterflows |
CA2241621A1 (en) * | 1998-06-26 | 1999-12-26 | National Silicates Ltd. | A lubricating method for silicate drilling fluids |
DE19937920A1 (de) * | 1999-08-11 | 2001-03-01 | Flowtex Technologie Gmbh & Co | Verfahren und Vorrichtung zum grabenlosen Verlegen von Fremdstromanoden für den kathodischen Korrosionsschutz |
US6806232B1 (en) | 2001-05-31 | 2004-10-19 | Steve Cart | Composition of drilling fluids comprising ground elastomeric crumb rubber material and a method of decreasing seepage and whole mud loss using such composition |
US7066285B2 (en) | 2002-01-16 | 2006-06-27 | Halliburton Energy Services, Inc. | Method and composition for preventing or treating lost circulation |
US6821931B2 (en) * | 2002-03-05 | 2004-11-23 | Alpine Mud Products Corporation | Water-based drilling fluid additive containing talc and carrier |
US6861392B2 (en) * | 2002-03-26 | 2005-03-01 | Halliburton Energy Services, Inc. | Compositions for restoring lost circulation |
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US7056867B2 (en) * | 2002-07-17 | 2006-06-06 | Alpine Mud Products Corp | Drilling fluid additive system containing graphite and carrier |
US7060660B2 (en) * | 2002-07-17 | 2006-06-13 | Alpine Mud Products Corp | Drilling fluid additive system containing talc and graphite |
US6889780B2 (en) | 2002-12-31 | 2005-05-10 | Halliburton Energy Services, Inc. | Method for drilling depleted sands with minimal drilling fluid loss |
US20040171499A1 (en) * | 2003-01-24 | 2004-09-02 | Halliburton Energy Services, Inc. | Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation |
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US7482309B2 (en) * | 2003-11-24 | 2009-01-27 | Halliburton Energy Services, Inc. | Methods of drilling wellbores using variable density fluids comprising coated elastic particles |
US7087555B2 (en) * | 2003-04-07 | 2006-08-08 | Baker Hughes Incorporated | Drilling fluids comprising sized graphite particles |
US7977281B2 (en) * | 2003-04-07 | 2011-07-12 | Baker Hughes Incorporated | Methods for minimizing the amount of graphite particles used during drilling operations |
EP1892278A1 (en) * | 2003-04-07 | 2008-02-27 | Baker Hughes Incorporated | Drilling fluids comprising sized graphite particles |
US20060122070A1 (en) * | 2003-04-07 | 2006-06-08 | Baker Hughes Incorporated | Drilling fluid systems comprising sized graphite particles |
US7376148B1 (en) * | 2004-01-26 | 2008-05-20 | Cisco Technology, Inc. | Method and apparatus for improving voice quality in a packet based network |
US9206084B2 (en) | 2004-01-29 | 2015-12-08 | Halliburton Energy Services, Inc. | Composition and method for dissipating heat underground |
US7452417B2 (en) * | 2004-01-29 | 2008-11-18 | Halliburton Energy Services, Inc. | Downhole servicing compositions having high thermal conductivities and methods of using the same |
US7067004B2 (en) * | 2004-01-29 | 2006-06-27 | Halliburton Energy Services, Inc. | Grout compositions having high thermal conductivities and methods of using the same |
US20050205834A1 (en) * | 2004-01-29 | 2005-09-22 | Matula Gary W | Composition and method for dissipating heat underground |
US7607483B2 (en) * | 2004-04-19 | 2009-10-27 | Halliburton Energy Services, Inc. | Sealant compositions comprising colloidally stabilized latex and methods of using the same |
EP1913111B1 (en) * | 2004-06-03 | 2012-12-19 | M-I L.L.C. | The use of sized barite as a weighting agent for drilling fluids |
WO2007145735A2 (en) | 2006-06-07 | 2007-12-21 | Exxonmobil Upstream Research Company | Method for fabricating compressible objects for a variable density drilling mud |
US8088716B2 (en) | 2004-06-17 | 2012-01-03 | Exxonmobil Upstream Research Company | Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud |
US7201228B2 (en) * | 2004-08-30 | 2007-04-10 | Halliburton Energy Services, Inc. | Freer flowing liquid-solid suspensions and methods of use in subterranean formations |
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US7284611B2 (en) * | 2004-11-05 | 2007-10-23 | Halliburton Energy Services, Inc. | Methods and compositions for controlling lost circulation in subterranean operations |
US20070111901A1 (en) * | 2005-11-11 | 2007-05-17 | Reddy B R | Method of servicing a wellbore with a sealant composition comprising solid latex |
US7488705B2 (en) * | 2004-12-08 | 2009-02-10 | Halliburton Energy Services, Inc. | Oilwell sealant compositions comprising alkali swellable latex |
US20070111900A1 (en) * | 2005-11-11 | 2007-05-17 | Reddy B R | Sealant compositions comprising solid latex |
EP1853685A4 (en) * | 2005-02-22 | 2011-11-30 | Mi Llc | ADDITIVE TO REDUCE THE TORQUE OF A DRILLING RESTRAINT |
US7402338B2 (en) * | 2005-02-25 | 2008-07-22 | Superior Graphite Co. | Graphite-coated particulate materials |
US7264053B2 (en) * | 2005-03-24 | 2007-09-04 | Halliburton Energy Services, Inc. | Methods of using wellbore servicing fluids comprising resilient material |
US20060217270A1 (en) * | 2005-03-24 | 2006-09-28 | Halliburton Energy Services, Inc. | Wellbore servicing fluids comprising resilient material |
US7501019B2 (en) * | 2005-03-31 | 2009-03-10 | Chevron U.S.A., Inc. | Granular solid wax particles |
US7629297B2 (en) * | 2005-04-26 | 2009-12-08 | Mano Shaarpour | Lost circulation composition |
US7913757B2 (en) * | 2005-09-16 | 2011-03-29 | Halliburton Energy Services. Inc. | Methods of formulating a cement composition |
US8132623B2 (en) * | 2006-01-23 | 2012-03-13 | Halliburton Energy Services Inc. | Methods of using lost circulation compositions |
US7776797B2 (en) * | 2006-01-23 | 2010-08-17 | Halliburton Energy Services, Inc. | Lost circulation compositions |
WO2007095009A2 (en) * | 2006-02-10 | 2007-08-23 | Nash, Kenneth, L. | Methods and compositions for sealing fractures, voids, and pores of subterranean rock formations |
EP2038364A2 (en) | 2006-06-07 | 2009-03-25 | ExxonMobil Upstream Research Company | Compressible objects having partial foam interiors combined with a drilling fluid to form a variable density drilling mud |
EP2041235B1 (en) | 2006-06-07 | 2013-02-13 | ExxonMobil Upstream Research Company | Compressible objects combined with a drilling fluid to form a variable density drilling mud |
US20080060811A1 (en) * | 2006-09-13 | 2008-03-13 | Halliburton Energy Services, Inc. | Method to control the physical interface between two or more fluids |
AU2008250002A1 (en) * | 2007-05-15 | 2008-11-20 | Shell Internationale Research Maatschappij B.V. | System for drilling a wellbore |
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US20090075847A1 (en) * | 2007-09-14 | 2009-03-19 | Wawrzos Frank A | Drilling fluid lubricant and method of use |
US8043997B2 (en) * | 2008-02-29 | 2011-10-25 | Halliburton Energy Services Inc. | Lost circulation material formulation and method of use |
BRPI0918009A2 (pt) | 2008-08-12 | 2017-06-27 | Board Of Supervisors Of Lousiana State Univ And Agricultural And Mechanical College | misturas de fibra termoplástica celulósica como materais de perda de circulação |
DE102008052417A1 (de) | 2008-10-21 | 2010-04-22 | Sasse, Heiko, Dipl.-Ing. | Geschlossenes Sonden-System |
US20100212892A1 (en) * | 2009-02-26 | 2010-08-26 | Halliburton Energy Services, Inc. | Methods of formulating a cement composition |
US7792250B1 (en) | 2009-04-30 | 2010-09-07 | Halliburton Energy Services Inc. | Method of selecting a wellbore cement having desirable characteristics |
US8530393B2 (en) | 2011-04-15 | 2013-09-10 | Halliburton Energy Services, Inc. | Methods to characterize fracture plugging efficiency for drilling fluids |
US8887806B2 (en) | 2011-05-26 | 2014-11-18 | Halliburton Energy Services, Inc. | Method for quantifying cement blend components |
WO2013116072A1 (en) | 2012-02-02 | 2013-08-08 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Engineering plastic/ inorganic fiber blends as lost circulation materials |
CA2768538A1 (en) * | 2012-02-16 | 2013-08-16 | Shannon Keith Latimer | Fill material dispensing method and apparatus |
US20150267103A1 (en) * | 2012-07-09 | 2015-09-24 | Schlumberger Technology Corporation | Methods for servicing subterranean wells |
US9388333B2 (en) | 2012-07-11 | 2016-07-12 | Halliburton Energy Services, Inc. | Methods relating to designing wellbore strengthening fluids |
US8999898B2 (en) | 2013-03-15 | 2015-04-07 | Superior Graphite Co. | Drilling fluid additive for loss circulation and wellbore strengthening |
US9688901B2 (en) * | 2013-07-05 | 2017-06-27 | James Blair Fontenot | Lost circulation drilling fluids comprising elastomeric rubber particles and a method for decreasing whole mud loss using such composition |
CN103571441B (zh) * | 2013-10-11 | 2017-03-15 | 四川康克石油科技有限公司 | 一种钻井液用抗磨减阻剂及其制备方法 |
CN103710015B (zh) * | 2013-12-25 | 2016-08-17 | 四川宝麟新材料科技有限公司 | 一种油气田增产用乳液型减阻剂及其制备方法 |
US9458703B2 (en) | 2013-12-26 | 2016-10-04 | Superior Graphite Co. | Compressible carbonaceous particulate material and method of making same |
US9637674B2 (en) * | 2014-07-21 | 2017-05-02 | Baker Hughes Incorporated | Electrically conductive oil-based fluids |
GB2548502B (en) * | 2014-12-11 | 2020-12-23 | Halliburton Energy Services Inc | Resilient carbon-based materials as lost circulation materials and related methods |
WO2016164399A1 (en) | 2015-04-06 | 2016-10-13 | Superior Graphite Co. | Cement composition including compressible carbon fraction |
WO2016175774A1 (en) | 2015-04-29 | 2016-11-03 | Halliburton Energy Services, Inc. | Grout fluids for use in a geothermal well loop |
US20160326423A1 (en) * | 2015-05-04 | 2016-11-10 | Baker Hughes Incorporated | Downhole fluid compositions and methods of using carbon black particles |
US10190388B2 (en) | 2015-10-15 | 2019-01-29 | Halliburton Energy Services, Inc. | Diverter fluid diverter fluid |
CN105623631B (zh) * | 2016-02-20 | 2018-05-04 | 西南石油大学 | 适用于深部地层、超深地层井漏的抗高温桥接堵漏剂 |
US11932808B2 (en) | 2018-06-28 | 2024-03-19 | Halliburton Energy Services, Inc. | Calcium carbonate/polymer particulate additives for use in subterranean operations |
US11319760B2 (en) | 2019-12-18 | 2022-05-03 | Saudi Arabian Oil Company | Swellable lost circulation material and methods of manufacturing and using the same |
WO2023141379A1 (en) * | 2022-01-21 | 2023-07-27 | ExxonMobil Technology and Engineering Company | Lost circulation fluids and methods related thereto |
CN115386348B (zh) * | 2022-09-14 | 2023-11-14 | 中国石油大学(华东) | 超深层油气藏盐诱导自聚结改性纳米石墨及其制备方法和调控体系及其应用方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2667224A (en) * | 1949-06-29 | 1954-01-26 | Stanolind Oil & Gas Co | Well completion process |
US2912380A (en) * | 1953-07-17 | 1959-11-10 | American Viscose Corp | Drilling fluids and method of preventing loss thereof from well holes |
US3385789A (en) * | 1964-03-05 | 1968-05-28 | Charles M. King | Composition and method for shale control |
US3444276A (en) * | 1966-04-04 | 1969-05-13 | Dow Chemical Co | Method for producing carbon-bonded graphite structures |
US3807961A (en) * | 1970-02-24 | 1974-04-30 | Superior Graphite Co | Apparatus for high-temperature treatment of petroleum coke |
CA1091895A (en) * | 1975-07-01 | 1980-12-23 | William M. Goldberger | Method and apparatus for heat treating carbonaceous material in a fluidized bed |
US4088583A (en) * | 1976-12-02 | 1978-05-09 | Union Oil Company Of California | Composition and method for drilling high temperature reservoirs |
US4123367A (en) * | 1977-04-29 | 1978-10-31 | Dodd Anita A | Method of reducing drag and rotating torque in the rotary drilling of oil and gas wells |
US4531594A (en) * | 1982-10-25 | 1985-07-30 | Venture Chemicals, Inc. | Method and compositions for fluid loss and seepage loss control |
US4501329A (en) * | 1983-04-18 | 1985-02-26 | Chevron Research Company | Non-abrasive particulate material for permeability alteration in subsurface formations |
US4957174A (en) * | 1989-06-29 | 1990-09-18 | Conoco Inc. | Method of controlling lost circulation in well drilling |
NL9001145A (nl) * | 1990-05-16 | 1991-12-16 | Norman Laurie Jacobs | Smeermiddel. |
ZA929373B (en) * | 1991-12-06 | 1993-06-02 | Chem Services | Drilling mud additive. |
US5211250A (en) * | 1992-01-21 | 1993-05-18 | Conoco Inc. | Method for stabilizing boreholes |
-
1996
- 1996-12-04 EG EG107496A patent/EG21132A/xx active
- 1996-12-10 DE DE69632831T patent/DE69632831T2/de not_active Expired - Lifetime
- 1996-12-10 WO PCT/US1996/019431 patent/WO1997022677A1/en active IP Right Grant
- 1996-12-10 DK DK96944244T patent/DK0866842T3/da active
- 1996-12-10 US US08/763,201 patent/US5826669A/en not_active Expired - Lifetime
- 1996-12-10 CA CA002240290A patent/CA2240290C/en not_active Expired - Fee Related
- 1996-12-10 AR ARP960105591A patent/AR004370A1/es unknown
- 1996-12-10 EP EP96944244A patent/EP0866842B1/en not_active Expired - Lifetime
- 1996-12-10 AU AU14102/97A patent/AU1410297A/en not_active Abandoned
- 1996-12-10 EA EA199800570A patent/EA000357B1/ru not_active IP Right Cessation
- 1996-12-14 DZ DZ960188A patent/DZ2143A1/fr active
- 1996-12-16 CO CO96065983A patent/CO4600753A1/es unknown
-
1997
- 1997-03-11 SA SA97170710A patent/SA97170710B1/ar unknown
-
1998
- 1998-06-12 NO NO19982733A patent/NO314591B2/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EA199800570A1 (ru) | 1998-12-24 |
NO982733L (no) | 1998-06-12 |
NO982733D0 (no) | 1998-06-12 |
EP0866842B1 (en) | 2004-06-30 |
DK0866842T3 (da) | 2004-10-11 |
EG21132A (en) | 2000-11-29 |
DE69632831D1 (de) | 2004-08-05 |
DZ2143A1 (fr) | 2002-10-23 |
AU1410297A (en) | 1997-07-14 |
CA2240290A1 (en) | 1997-06-26 |
EA000357B1 (ru) | 1999-06-24 |
EP0866842A4 (en) | 1999-02-03 |
DE69632831T2 (de) | 2005-07-14 |
WO1997022677A1 (en) | 1997-06-26 |
EP0866842A1 (en) | 1998-09-30 |
NO314591B1 (no) | 2003-04-14 |
SA97170710B1 (ar) | 2006-09-04 |
NO314591B2 (no) | 2003-04-14 |
AR004370A1 (es) | 1998-11-04 |
US5826669A (en) | 1998-10-27 |
CA2240290C (en) | 2005-06-28 |
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