CA2397480C - Expansion d'un element tubulaire - Google Patents
Expansion d'un element tubulaire Download PDFInfo
- Publication number
- CA2397480C CA2397480C CA2397480A CA2397480A CA2397480C CA 2397480 C CA2397480 C CA 2397480C CA 2397480 A CA2397480 A CA 2397480A CA 2397480 A CA2397480 A CA 2397480A CA 2397480 C CA2397480 C CA 2397480C
- Authority
- CA
- Canada
- Prior art keywords
- tubular member
- mandrel
- preferred
- annular region
- pressurizing
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 claims abstract description 52
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 80
- 238000007789 sealing Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims 2
- 239000000463 material Substances 0.000 description 30
- 238000001125 extrusion Methods 0.000 description 16
- 239000004568 cement Substances 0.000 description 9
- 239000004593 Epoxy Substances 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 229910000975 Carbon steel Inorganic materials 0.000 description 7
- 239000010962 carbon steel Substances 0.000 description 7
- 238000005553 drilling Methods 0.000 description 7
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000005060 rubber Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- -1 TeflonTM Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229920006172 Tetrafluoroethylene propylene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
- E21B43/105—Expanding tools specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Body Washing Hand Wipes And Brushes (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
L'invention concerne l'expansion d'un élément tubulaire par la mise sous pression d'une région interne de l'élément tubulaire.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18354600P | 2000-02-18 | 2000-02-18 | |
| US60/183,546 | 2000-02-18 | ||
| PCT/US2001/004753 WO2001060545A1 (fr) | 2000-02-18 | 2001-02-14 | Expansion d'un element tubulaire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2397480A1 CA2397480A1 (fr) | 2001-08-23 |
| CA2397480C true CA2397480C (fr) | 2010-04-20 |
Family
ID=22673262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2397480A Expired - Lifetime CA2397480C (fr) | 2000-02-18 | 2001-02-14 | Expansion d'un element tubulaire |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU780123B2 (fr) |
| CA (1) | CA2397480C (fr) |
| GB (1) | GB2373468B (fr) |
| NO (1) | NO328521B1 (fr) |
| WO (1) | WO2001060545A1 (fr) |
Families Citing this family (79)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7040420B2 (en) | 1994-10-14 | 2006-05-09 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7228901B2 (en) | 1994-10-14 | 2007-06-12 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| AU6981001A (en) | 1998-11-16 | 2002-01-02 | Shell Oil Co | Radial expansion of tubular members |
| US7121352B2 (en) | 1998-11-16 | 2006-10-17 | Enventure Global Technology | Isolation of subterranean zones |
| US7231985B2 (en) | 1998-11-16 | 2007-06-19 | Shell Oil Company | Radial expansion of tubular members |
| US7603758B2 (en) | 1998-12-07 | 2009-10-20 | Shell Oil Company | Method of coupling a tubular member |
| US6557640B1 (en) | 1998-12-07 | 2003-05-06 | Shell Oil Company | Lubrication and self-cleaning system for expansion mandrel |
| US7357188B1 (en) | 1998-12-07 | 2008-04-15 | Shell Oil Company | Mono-diameter wellbore casing |
| US6823937B1 (en) | 1998-12-07 | 2004-11-30 | Shell Oil Company | Wellhead |
| GB2344606B (en) | 1998-12-07 | 2003-08-13 | Shell Int Research | Forming a wellbore casing by expansion of a tubular member |
| US6725919B2 (en) | 1998-12-07 | 2004-04-27 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US7195064B2 (en) | 1998-12-07 | 2007-03-27 | Enventure Global Technology | Mono-diameter wellbore casing |
| CA2310878A1 (fr) | 1998-12-07 | 2000-12-07 | Shell Internationale Research Maatschappij B.V. | Systeme de lubrification et d'autonettoyage pour mandrin expansible |
| US7363984B2 (en) | 1998-12-07 | 2008-04-29 | Enventure Global Technology, Llc | System for radially expanding a tubular member |
| US7185710B2 (en) | 1998-12-07 | 2007-03-06 | Enventure Global Technology | Mono-diameter wellbore casing |
| US7552776B2 (en) | 1998-12-07 | 2009-06-30 | Enventure Global Technology, Llc | Anchor hangers |
| AU772327B2 (en) | 1998-12-22 | 2004-04-22 | Weatherford Technology Holdings, Llc | Procedures and equipment for profiling and jointing of pipes |
| US7311148B2 (en) | 1999-02-25 | 2007-12-25 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
| AU770359B2 (en) | 1999-02-26 | 2004-02-19 | Shell Internationale Research Maatschappij B.V. | Liner hanger |
| US7055608B2 (en) | 1999-03-11 | 2006-06-06 | Shell Oil Company | Forming a wellbore casing while simultaneously drilling a wellbore |
| US7350563B2 (en) | 1999-07-09 | 2008-04-01 | Enventure Global Technology, L.L.C. | System for lining a wellbore casing |
| CA2389094C (fr) | 1999-11-01 | 2008-08-19 | Shell Oil Company | Reparation du tubage d'un puits de forage par expansion dudit tubage |
| US7234531B2 (en) | 1999-12-03 | 2007-06-26 | Enventure Global Technology, Llc | Mono-diameter wellbore casing |
| US6598678B1 (en) | 1999-12-22 | 2003-07-29 | Weatherford/Lamb, Inc. | Apparatus and methods for separating and joining tubulars in a wellbore |
| US7334650B2 (en) | 2000-04-13 | 2008-02-26 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling a wellbore using casing |
| US7100684B2 (en) | 2000-07-28 | 2006-09-05 | Enventure Global Technology | Liner hanger with standoffs |
| CA2466685C (fr) | 2000-09-18 | 2010-11-23 | Shell Oil Company | Suspension de colonne perdue comprenant une soupape a manchon |
| GB0023032D0 (en) | 2000-09-20 | 2000-11-01 | Weatherford Lamb | Downhole apparatus |
| US7100685B2 (en) | 2000-10-02 | 2006-09-05 | Enventure Global Technology | Mono-diameter wellbore casing |
| AU9480201A (en) | 2000-10-02 | 2002-04-15 | Shell Oil Co | Method and apparatus for casing expansion |
| WO2002053867A2 (fr) | 2001-01-03 | 2002-07-11 | Enventure Global Technology | Cuvelage de diamètre nanométrique pour puits foré |
| US7410000B2 (en) | 2001-01-17 | 2008-08-12 | Enventure Global Technology, Llc. | Mono-diameter wellbore casing |
| US7172027B2 (en) | 2001-05-15 | 2007-02-06 | Weatherford/Lamb, Inc. | Expanding tubing |
| GB0114872D0 (en) | 2001-06-19 | 2001-08-08 | Weatherford Lamb | Tubing expansion |
| US6550539B2 (en) | 2001-06-20 | 2003-04-22 | Weatherford/Lamb, Inc. | Tie back and method for use with expandable tubulars |
| CA2453063C (fr) | 2001-07-06 | 2011-03-22 | Enventure Global Technology | Suspension de colonne perdue |
| AU2002318438A1 (en) | 2001-07-06 | 2003-01-21 | Enventure Global Technology | Liner hanger |
| US7258168B2 (en) | 2001-07-27 | 2007-08-21 | Enventure Global Technology L.L.C. | Liner hanger with slip joint sealing members and method of use |
| GB0119977D0 (en) | 2001-08-16 | 2001-10-10 | E2 Tech Ltd | Apparatus and method |
| GB2409218B (en) | 2001-08-20 | 2006-03-15 | Enventure Global Technology | Apparatus and method for radially expanding tubular members including an adjustable tubular expansion device |
| US6591905B2 (en) | 2001-08-23 | 2003-07-15 | Weatherford/Lamb, Inc. | Orienting whipstock seat, and method for seating a whipstock |
| US6752216B2 (en) * | 2001-08-23 | 2004-06-22 | Weatherford/Lamb, Inc. | Expandable packer, and method for seating an expandable packer |
| GB2417275B (en) * | 2001-09-07 | 2006-04-05 | Enventure Global Technology | Apparatus for radially expanding an expandable tubular member |
| US7546881B2 (en) | 2001-09-07 | 2009-06-16 | Enventure Global Technology, Llc | Apparatus for radially expanding and plastically deforming a tubular member |
| WO2004081346A2 (fr) | 2003-03-11 | 2004-09-23 | Enventure Global Technology | Appareil destine a la dilatation radiale et a la deformation plastique d'un element tubulaire |
| GB2396646B (en) | 2001-09-07 | 2006-03-01 | Enventure Global Technology | Adjustable expansion cone assembly |
| GB2414749B (en) | 2001-11-12 | 2006-06-28 | Enventure Global Technology | Mono diameter wellbore casing |
| NL1019368C2 (nl) | 2001-11-14 | 2003-05-20 | Nutricia Nv | Preparaat voor het verbeteren van receptorwerking. |
| US7290605B2 (en) | 2001-12-27 | 2007-11-06 | Enventure Global Technology | Seal receptacle using expandable liner hanger |
| US6722441B2 (en) | 2001-12-28 | 2004-04-20 | Weatherford/Lamb, Inc. | Threaded apparatus for selectively translating rotary expander tool downhole |
| WO2004018823A2 (fr) | 2002-08-23 | 2004-03-04 | Enventure Global Technology | Procede de formation d'un tubage d'un puits de forage par couche interposee de scellement de joint |
| US7377326B2 (en) | 2002-08-23 | 2008-05-27 | Enventure Global Technology, L.L.C. | Magnetic impulse applied sleeve method of forming a wellbore casing |
| WO2004027786A2 (fr) | 2002-09-20 | 2004-04-01 | Enventure Global Technology | Manchon protecteur conçu pour des tuyaux extensibles |
| US7740076B2 (en) | 2002-04-12 | 2010-06-22 | Enventure Global Technology, L.L.C. | Protective sleeve for threaded connections for expandable liner hanger |
| CA2476080C (fr) | 2002-02-15 | 2012-01-03 | Enventure Global Technology | Tubage de puits a diametre unique |
| US7156182B2 (en) | 2002-03-07 | 2007-01-02 | Baker Hughes Incorporated | Method and apparatus for one trip tubular expansion |
| EP1501645A4 (fr) | 2002-04-15 | 2006-04-26 | Enventure Global Technology | Manchon protecteur destine aux connexions filetees d'un dispositif de suspension pour colonne de tubage perdue expansible |
| AU2003225001A1 (en) | 2002-05-29 | 2003-12-19 | Eventure Global Technology | System for radially expanding a tubular member |
| GB2406126B (en) | 2002-06-10 | 2006-03-15 | Enventure Global Technology | Mono-diameter wellbore casing |
| US6820687B2 (en) | 2002-09-03 | 2004-11-23 | Weatherford/Lamb, Inc. | Auto reversing expanding roller system |
| MXPA05003115A (es) | 2002-09-20 | 2005-08-03 | Eventure Global Technology | Evaluacion de formabilidad de un tubo para miembros tubulares expandibles. |
| CA2499071C (fr) | 2002-09-20 | 2014-06-03 | Enventure Global Technology | Mandrin d'extension autolubrifiant pour element tubulaire extensible |
| BR0314627A (pt) | 2002-09-20 | 2005-07-26 | Enventure Global Technology | Tampão de fundo para uso em conexão com um aparelho para formar um encamisamento de furo de poço de diâmetro único, aparelho conectável a uma tubulação de perfuração para formar um encamisamento de furo de poço de diâmetro único, e, método para formar um encamisamento de furo de poço de diâmetro único |
| GB0222321D0 (en) | 2002-09-25 | 2002-10-30 | Weatherford Lamb | Expandable connection |
| US7182141B2 (en) | 2002-10-08 | 2007-02-27 | Weatherford/Lamb, Inc. | Expander tool for downhole use |
| US7303022B2 (en) | 2002-10-11 | 2007-12-04 | Weatherford/Lamb, Inc. | Wired casing |
| US7886831B2 (en) | 2003-01-22 | 2011-02-15 | Enventure Global Technology, L.L.C. | Apparatus for radially expanding and plastically deforming a tubular member |
| US7503393B2 (en) | 2003-01-27 | 2009-03-17 | Enventure Global Technology, Inc. | Lubrication system for radially expanding tubular members |
| USRE42877E1 (en) | 2003-02-07 | 2011-11-01 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
| CA2517208C (fr) | 2003-02-26 | 2008-06-03 | Enventure Global Technology | Appareil d'expansion radiale et de deformation plastique d'un element tubulaire |
| GB2416360B (en) | 2003-03-05 | 2007-08-22 | Weatherford Lamb | Drilling with casing latch |
| CA2683763C (fr) | 2003-03-05 | 2013-01-29 | Weatherford/Lamb, Inc. | Puits de forage tubes a passage integral |
| US6920932B2 (en) * | 2003-04-07 | 2005-07-26 | Weatherford/Lamb, Inc. | Joint for use with expandable tubulars |
| GB2415988B (en) | 2003-04-17 | 2007-10-17 | Enventure Global Technology | Apparatus for radially expanding and plastically deforming a tubular member |
| US20050166387A1 (en) | 2003-06-13 | 2005-08-04 | Cook Robert L. | Method and apparatus for forming a mono-diameter wellbore casing |
| US7712522B2 (en) | 2003-09-05 | 2010-05-11 | Enventure Global Technology, Llc | Expansion cone and system |
| US7264067B2 (en) | 2003-10-03 | 2007-09-04 | Weatherford/Lamb, Inc. | Method of drilling and completing multiple wellbores inside a single caisson |
| GB2432866A (en) | 2004-08-13 | 2007-06-06 | Enventure Global Technology | Expandable tubular |
| DE102006051039A1 (de) * | 2006-10-26 | 2008-04-30 | Deutsche Mechatronics Gmbh | Hydroform-Verfahren |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3887006A (en) * | 1974-04-24 | 1975-06-03 | Dow Chemical Co | Fluid retainer setting tool |
| US4025422A (en) * | 1975-08-14 | 1977-05-24 | Tri/Valley Growers | Method and apparatus for inspecting food products |
| US4205422A (en) * | 1977-06-15 | 1980-06-03 | Yorkshire Imperial Metals Limited | Tube repairs |
| US5664327A (en) * | 1988-11-03 | 1997-09-09 | Emitec Gesellschaft Fur Emissionstechnologie Gmbh | Method for producing a hollow composite members |
| US5332038A (en) * | 1992-08-06 | 1994-07-26 | Baker Hughes Incorporated | Gravel packing system |
| US5794702A (en) * | 1996-08-16 | 1998-08-18 | Nobileau; Philippe C. | Method for casing a wellbore |
| GB2319315B (en) * | 1996-11-09 | 2000-06-21 | British Gas Plc | A method of joining lined pipes |
| US5857524A (en) * | 1997-02-27 | 1999-01-12 | Harris; Monty E. | Liner hanging, sealing and cementing tool |
-
2001
- 2001-02-14 GB GB0216409A patent/GB2373468B/en not_active Expired - Lifetime
- 2001-02-14 CA CA2397480A patent/CA2397480C/fr not_active Expired - Lifetime
- 2001-02-14 WO PCT/US2001/004753 patent/WO2001060545A1/fr not_active Ceased
- 2001-02-14 AU AU38263/01A patent/AU780123B2/en not_active Ceased
-
2002
- 2002-08-16 NO NO20023885A patent/NO328521B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001060545A1 (fr) | 2001-08-23 |
| NO328521B1 (no) | 2010-03-08 |
| GB2373468B (en) | 2004-07-14 |
| AU780123B2 (en) | 2005-03-03 |
| NO20023885D0 (no) | 2002-08-16 |
| CA2397480A1 (fr) | 2001-08-23 |
| AU3826301A (en) | 2001-08-27 |
| GB0216409D0 (en) | 2002-08-21 |
| NO20023885L (no) | 2002-08-16 |
| GB2373468A (en) | 2002-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20210215 |
|
| MKEX | Expiry |
Effective date: 20210215 |