CA2639917C - Compositions de perte de circulation et procedes les utilisant - Google Patents
Compositions de perte de circulation et procedes les utilisant Download PDFInfo
- Publication number
- CA2639917C CA2639917C CA2639917A CA2639917A CA2639917C CA 2639917 C CA2639917 C CA 2639917C CA 2639917 A CA2639917 A CA 2639917A CA 2639917 A CA2639917 A CA 2639917A CA 2639917 C CA2639917 C CA 2639917C
- Authority
- CA
- Canada
- Prior art keywords
- composition
- filler
- crosslinkable polymer
- polymer system
- lost circulation
- 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.)
- Expired - Fee Related
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 55
- 229920000642 polymer Polymers 0.000 claims abstract description 50
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims abstract description 44
- 238000012856 packing Methods 0.000 claims abstract description 44
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 239000003431 cross linking reagent Substances 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 9
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 8
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 8
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 229920002873 Polyethylenimine Polymers 0.000 claims description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 239000012858 resilient material Substances 0.000 claims description 4
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims description 4
- AUZRCMMVHXRSGT-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CC(C)CS(O)(=O)=O AUZRCMMVHXRSGT-UHFFFAOYSA-N 0.000 claims description 3
- 150000003974 aralkylamines Chemical class 0.000 claims description 3
- 239000010428 baryte Substances 0.000 claims description 3
- 229910052601 baryte Inorganic materials 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 229920006029 tetra-polymer Polymers 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 2
- 238000007725 thermal activation Methods 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 description 36
- 239000002002 slurry Substances 0.000 description 29
- 239000000047 product Substances 0.000 description 22
- 238000012360 testing method Methods 0.000 description 20
- 239000000654 additive Substances 0.000 description 14
- 238000005553 drilling Methods 0.000 description 13
- -1 hydroxyl compound Chemical class 0.000 description 12
- 230000003068 static effect Effects 0.000 description 11
- 239000004568 cement Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 239000004971 Cross linker Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000284156 Clerodendrum quadriloculare Species 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000011342 resin composition Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- OZDGMOYKSFPLSE-UHFFFAOYSA-N 2-Methylaziridine Chemical compound CC1CN1 OZDGMOYKSFPLSE-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241001251094 Formica Species 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000003973 alkyl amines Chemical group 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N cinnamic acid group Chemical class C(C=CC1=CC=CC=C1)(=O)O WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002826 magnetic-activated cell sorting Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003511 tertiary amides Chemical class 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000002023 wood Substances 0.000 description 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
-
- 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
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
La présente invention concerne une composition de perte de circulation destinée à une utilisation dans un puits comprenant un système polymère réticulable et une charge. L'invention concerne également un procédé d'entretien d~un puits en contact avec une formation souterraine, comprenant : le placement d'un fluide d~entretien de puits comprenant un système polymère réticulable et une charge dans une zone de perte de circulation à l~intérieur du puits. L'invention concerne également un procédé de blocage d~écoulement du fluide à travers une zone de perte de circulation dans une formation souterraine comprenant le fait de placer une première composition comprenant un agent de remplissage dans la zone de perte de circulation, placer une seconde composition comprenant un système polymère réticulable et une charge dans la zone de perte de circulation, et permettre aux compositions de rester dans cette position.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/337,707 | 2006-01-23 | ||
| US11/337,713 US7776797B2 (en) | 2006-01-23 | 2006-01-23 | Lost circulation compositions |
| US11/337,713 | 2006-01-23 | ||
| US11/337,707 US8132623B2 (en) | 2006-01-23 | 2006-01-23 | Methods of using lost circulation compositions |
| PCT/GB2007/000190 WO2007083144A1 (fr) | 2006-01-23 | 2007-01-22 | Compositions pour perte de circulation et procedes les utilisant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2639917A1 CA2639917A1 (fr) | 2007-07-26 |
| CA2639917C true CA2639917C (fr) | 2011-03-15 |
Family
ID=38042523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2639917A Expired - Fee Related CA2639917C (fr) | 2006-01-23 | 2007-01-22 | Compositions de perte de circulation et procedes les utilisant |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BRPI0706656B1 (fr) |
| CA (1) | CA2639917C (fr) |
| WO (1) | WO2007083144A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9284478B2 (en) | 2006-01-19 | 2016-03-15 | Halliburton Energy Services, Inc. | Salt of weak bronsted base and bronsted acid as gelation retarder for crosslinkable polymer compositions |
| MX2009009842A (es) * | 2007-03-12 | 2009-09-24 | Univ Kansas | Complejos polielectroliticos como agentes de gelificacion retardada para aplicaciones para petroleo y gas. |
| US8733441B2 (en) | 2008-11-19 | 2014-05-27 | Maersk Olie Og Gas A/S | Sealing of thief zones |
| US8322421B2 (en) | 2010-03-03 | 2012-12-04 | Halliburton Energy Services, Inc. | Lewis acid as gelation retarder for crosslinkable polymer compositions |
| US8522874B2 (en) | 2010-03-03 | 2013-09-03 | Halliburton Energy Services, Inc. | Weak organic acid as gelation retarder for crosslinkable polymer compositions |
| CN101824314B (zh) * | 2010-03-10 | 2013-05-08 | 中国地质大学（武汉） | 用于稠油开采和输送的三元共聚物油溶性降粘剂及其制备方法 |
| US9809736B2 (en) | 2012-08-31 | 2017-11-07 | Halliburton Energy Services, Inc. | Wellbore servicing compositions and methods of making and using same |
| CN116536035B (zh) * | 2023-04-04 | 2024-06-07 | 中国石油大学(华东) | 一种适用于恶性井漏地层的可控固化树脂堵漏体系及其制备方法与应用 |
| CN119914245B (zh) * | 2023-10-30 | 2025-10-10 | 中国石油天然气集团有限公司 | 基于地质工程大数据分析的钻井过程中的井涌监测方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5009269A (en) * | 1990-07-31 | 1991-04-23 | Conoco Inc. | Well cement fluid loss additive and method |
| US5849674A (en) * | 1996-10-15 | 1998-12-15 | Phillips Petroleum Company | Compositions and processes for oil field applications |
| US6196317B1 (en) * | 1998-12-15 | 2001-03-06 | Halliburton Energy Services, Inc. | Method and compositions for reducing the permeabilities of subterranean zones |
| US6866099B2 (en) * | 2003-02-12 | 2005-03-15 | Halliburton Energy Services, Inc. | Methods of completing wells in unconsolidated subterranean zones |
| FR2863301B1 (fr) * | 2003-12-05 | 2006-02-17 | Inst Francais Du Petrole | Methode et composition pour remedier aux pertes de fluides en cours de forage |
-
2007
- 2007-01-22 WO PCT/GB2007/000190 patent/WO2007083144A1/fr not_active Ceased
- 2007-01-22 BR BRPI0706656A patent/BRPI0706656B1/pt not_active IP Right Cessation
- 2007-01-22 CA CA2639917A patent/CA2639917C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0706656B1 (pt) | 2017-04-18 |
| CA2639917A1 (fr) | 2007-07-26 |
| WO2007083144A1 (fr) | 2007-07-26 |
| BRPI0706656A2 (pt) | 2011-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210831 |
|
| MKLA | Lapsed |
Effective date: 20200122 |