ATE291674T1 - Vorrichtung und verfahren zum bohren und kompletieren mehrerer bohrungen - Google Patents
Vorrichtung und verfahren zum bohren und kompletieren mehrerer bohrungenInfo
- Publication number
- ATE291674T1 ATE291674T1 AT96917909T AT96917909T ATE291674T1 AT E291674 T1 ATE291674 T1 AT E291674T1 AT 96917909 T AT96917909 T AT 96917909T AT 96917909 T AT96917909 T AT 96917909T AT E291674 T1 ATE291674 T1 AT E291674T1
- Authority
- AT
- Austria
- Prior art keywords
- well
- well bore
- drilling
- bores
- bore
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 238000005553 drilling Methods 0.000 abstract 3
- 238000005755 formation reaction Methods 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
- E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
-
- 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
- E21B23/12—Tool diverters
-
- 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
-
- 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
- E21B33/047—Casing heads; Suspending casings or tubings in well heads for plural tubing strings
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/043—Directional drilling for underwater installations
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
-
- 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
- E21B43/01—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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Boring (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/508,635 US5655602A (en) | 1992-08-28 | 1995-07-26 | Apparatus and process for drilling and completing multiple wells |
PCT/US1996/008321 WO1997005360A1 (en) | 1995-07-26 | 1996-06-03 | Apparatus and process for drilling and completing multiple wells |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE291674T1 true ATE291674T1 (de) | 2005-04-15 |
Family
ID=24023477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT96917909T ATE291674T1 (de) | 1995-07-26 | 1996-06-03 | Vorrichtung und verfahren zum bohren und kompletieren mehrerer bohrungen |
Country Status (11)
Country | Link |
---|---|
US (1) | US5655602A (de) |
EP (1) | EP0840834B1 (de) |
CN (1) | CN1191586A (de) |
AT (1) | ATE291674T1 (de) |
AU (1) | AU697967B2 (de) |
BR (1) | BR9609875A (de) |
CA (1) | CA2215266C (de) |
DE (1) | DE69634511D1 (de) |
MX (1) | MX9708131A (de) |
RU (1) | RU2135732C1 (de) |
WO (1) | WO1997005360A1 (de) |
Families Citing this family (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5887655A (en) | 1993-09-10 | 1999-03-30 | Weatherford/Lamb, Inc | Wellbore milling and drilling |
US5887668A (en) | 1993-09-10 | 1999-03-30 | Weatherford/Lamb, Inc. | Wellbore milling-- drilling |
US5941308A (en) * | 1996-01-26 | 1999-08-24 | Schlumberger Technology Corporation | Flow segregator for multi-drain well completion |
US6056059A (en) | 1996-03-11 | 2000-05-02 | Schlumberger Technology Corporation | Apparatus and method for establishing branch wells from a parent well |
US6283216B1 (en) | 1996-03-11 | 2001-09-04 | Schlumberger Technology Corporation | Apparatus and method for establishing branch wells from a parent well |
US5944107A (en) * | 1996-03-11 | 1999-08-31 | Schlumberger Technology Corporation | Method and apparatus for establishing branch wells at a node of a parent well |
GB2315504B (en) * | 1996-07-22 | 1998-09-16 | Baker Hughes Inc | Sealing lateral wellbores |
US5960873A (en) * | 1997-09-16 | 1999-10-05 | Mobil Oil Corporation | Producing fluids from subterranean formations through lateral wells |
US6135208A (en) | 1998-05-28 | 2000-10-24 | Halliburton Energy Services, Inc. | Expandable wellbore junction |
US6182760B1 (en) | 1998-07-20 | 2001-02-06 | Union Oil Company Of California | Supplementary borehole drilling |
CA2244451C (en) * | 1998-07-31 | 2002-01-15 | Dresser Industries, Inc. | Multiple string completion apparatus and method |
US6209648B1 (en) | 1998-11-19 | 2001-04-03 | Schlumberger Technology Corporation | Method and apparatus for connecting a lateral branch liner to a main well bore |
US6280000B1 (en) * | 1998-11-20 | 2001-08-28 | Joseph A. Zupanick | Method for production of gas from a coal seam using intersecting well bores |
US6615920B1 (en) * | 2000-03-17 | 2003-09-09 | Marathon Oil Company | Template and system of templates for drilling and completing offset well bores |
US6543553B2 (en) | 2001-01-29 | 2003-04-08 | Chevron Nigeria Limited | Apparatus for use in drilling oil and gas production wells or water injection wells |
WO2003004830A1 (en) * | 2001-07-03 | 2003-01-16 | Fmc Technologies, Inc. | High pressure side-by-side wellhead system |
US6772841B2 (en) | 2002-04-11 | 2004-08-10 | Halliburton Energy Services, Inc. | Expandable float shoe and associated methods |
US7000695B2 (en) * | 2002-05-02 | 2006-02-21 | Halliburton Energy Services, Inc. | Expanding wellbore junction |
MXPA05000884A (es) * | 2002-07-25 | 2005-09-08 | Schlumberger Technology Bv | Metodo de perforacion. |
US7051917B2 (en) | 2002-11-05 | 2006-05-30 | Simmons Robert J | Beam end weld preparation |
US6863130B2 (en) * | 2003-01-21 | 2005-03-08 | Halliburton Energy Services, Inc. | Multi-layer deformable composite construction for use in a subterranean well |
USRE42877E1 (en) | 2003-02-07 | 2011-11-01 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
US6915847B2 (en) * | 2003-02-14 | 2005-07-12 | Schlumberger Technology Corporation | Testing a junction of plural bores in a well |
US7066267B2 (en) * | 2003-08-26 | 2006-06-27 | Dril-Quip, Inc. | Downhole tubular splitter assembly and method |
US7264067B2 (en) * | 2003-10-03 | 2007-09-04 | Weatherford/Lamb, Inc. | Method of drilling and completing multiple wellbores inside a single caisson |
US7225875B2 (en) | 2004-02-06 | 2007-06-05 | Halliburton Energy Services, Inc. | Multi-layered wellbore junction |
US7320366B2 (en) * | 2005-02-15 | 2008-01-22 | Halliburton Energy Services, Inc. | Assembly of downhole equipment in a wellbore |
US7712524B2 (en) * | 2006-03-30 | 2010-05-11 | Schlumberger Technology Corporation | Measuring a characteristic of a well proximate a region to be gravel packed |
US7793718B2 (en) | 2006-03-30 | 2010-09-14 | Schlumberger Technology Corporation | Communicating electrical energy with an electrical device in a well |
US8056619B2 (en) | 2006-03-30 | 2011-11-15 | Schlumberger Technology Corporation | Aligning inductive couplers in a well |
US7735555B2 (en) * | 2006-03-30 | 2010-06-15 | Schlumberger Technology Corporation | Completion system having a sand control assembly, an inductive coupler, and a sensor proximate to the sand control assembly |
US7857052B2 (en) | 2006-05-12 | 2010-12-28 | Weatherford/Lamb, Inc. | Stage cementing methods used in casing while drilling |
US8276689B2 (en) | 2006-05-22 | 2012-10-02 | Weatherford/Lamb, Inc. | Methods and apparatus for drilling with casing |
ITMI20081163A1 (it) * | 2008-06-26 | 2009-12-27 | Eni Spa | Apparato per il miglioramento della sicurezza e del recupero dei pozzi e procedimento di installazione dello stesso |
US8397819B2 (en) * | 2008-11-21 | 2013-03-19 | Bruce Tunget | Systems and methods for operating a plurality of wells through a single bore |
US8457896B2 (en) * | 2009-09-22 | 2013-06-04 | Gyrodata, Incorporated | Method and apparatus for determining locations of multiple casings within a wellbore conductor |
US8839850B2 (en) * | 2009-10-07 | 2014-09-23 | Schlumberger Technology Corporation | Active integrated completion installation system and method |
AU2010341846B2 (en) * | 2010-01-12 | 2015-09-24 | Weir Group Ip Ltd | High pressure seal adapter for splitter conductor housing to wellhead connection |
US20110192596A1 (en) * | 2010-02-07 | 2011-08-11 | Schlumberger Technology Corporation | Through tubing intelligent completion system and method with connection |
EP2550426B8 (de) * | 2010-03-25 | 2020-06-17 | Bruce A. Tunget | Verteilerstrang zur selektiven steuerung des flusses von flüssigkeitsströmen mit verschiedenen geschwindigkeiten in mehreren bohrlöchern einer hauptbohranlage |
BR112013009397A2 (pt) * | 2010-10-27 | 2016-07-26 | Shell Int Research | sistema de produção de óleo fora da costa |
US8967277B2 (en) * | 2011-06-03 | 2015-03-03 | Halliburton Energy Services, Inc. | Variably configurable wellbore junction assembly |
BR112014001623B1 (pt) * | 2011-07-05 | 2021-07-13 | Bruce A. Tunget | Sistema de cabeamento compatível com operação sem cordoalha para uso e abandono de um poço subterrâneo |
US9249559B2 (en) | 2011-10-04 | 2016-02-02 | Schlumberger Technology Corporation | Providing equipment in lateral branches of a well |
US9644476B2 (en) | 2012-01-23 | 2017-05-09 | Schlumberger Technology Corporation | Structures having cavities containing coupler portions |
US9175560B2 (en) | 2012-01-26 | 2015-11-03 | Schlumberger Technology Corporation | Providing coupler portions along a structure |
US9938823B2 (en) | 2012-02-15 | 2018-04-10 | Schlumberger Technology Corporation | Communicating power and data to a component in a well |
US10036234B2 (en) | 2012-06-08 | 2018-07-31 | Schlumberger Technology Corporation | Lateral wellbore completion apparatus and method |
GB201210884D0 (en) * | 2012-06-19 | 2012-08-01 | Enovate Systems Ltd | Improved bore selection apparatus |
WO2014007809A1 (en) * | 2012-07-03 | 2014-01-09 | Halliburton Energy Services, Inc. | Method of intersecting a first well bore by a second well bore |
US9540909B2 (en) * | 2012-09-28 | 2017-01-10 | Schlumberger Technology Corporation | Diverter latch assembly system |
CN103711457A (zh) * | 2012-09-29 | 2014-04-09 | 中国石油化工股份有限公司 | 一种六开次井身结构的设计方法 |
CN102943650B (zh) * | 2012-10-10 | 2015-07-29 | 中国石油集团长城钻探工程有限公司 | 一种分支井分采工具及其施工工艺 |
CN103967411B (zh) * | 2013-01-29 | 2016-09-21 | 中国石油化工股份有限公司 | 母井分支装置,其制造方法和使用其钻分支井的方法 |
WO2015021246A1 (en) * | 2013-08-07 | 2015-02-12 | Schlumberger Canada Limited | System and methodology for running casing strings through a conductor tube |
RU2651659C1 (ru) * | 2014-07-16 | 2018-04-23 | Хэллибертон Энерджи Сервисиз, Инк. | Узел сопряжения многоствольной скважины с использованием механических элементов жесткости |
US9670733B1 (en) * | 2016-01-21 | 2017-06-06 | Ge Oil & Gas Pressure Control Lp | Subsea multibore drilling and completion system |
CA3065288C (en) | 2017-08-02 | 2022-01-11 | Halliburton Energy Services, Inc. | Lateral tubing support of a multi-lateral junction assembly |
US10954724B2 (en) * | 2018-06-26 | 2021-03-23 | Baker Hughes, A Ge Company, Llc | Axial and rotational alignment system and method |
CN114439454A (zh) * | 2021-12-09 | 2022-05-06 | 潍坊市宇宏石油机械有限公司 | 一种多分支井钻完井的装置及使用方法 |
NO347971B1 (en) * | 2022-09-13 | 2024-06-03 | Fmc Kongsberg Subsea As | Method for providing a subsea template system with a tail pipe and a subsea template system |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1900163A (en) * | 1931-05-02 | 1933-03-07 | Dana Drexler | Method and apparatus for drilling oil wells |
US1900164A (en) * | 1932-07-05 | 1933-03-07 | Dana Drexler | Method and apparatus for drilling oil wells |
US2492079A (en) * | 1943-12-09 | 1949-12-20 | Eastman Oil Well Survey Co | Apparatus for completing wells |
US2794505A (en) * | 1955-11-04 | 1957-06-04 | Cameron Iron Works Inc | Pipe hanging apparatus |
US3080922A (en) * | 1956-01-30 | 1963-03-12 | Baker Oil Tools Inc | Multiple zone well production apparatus |
US3083768A (en) * | 1956-02-20 | 1963-04-02 | Baker Oil Tools Inc | Apparatus for multiple zone well production |
US3052301A (en) * | 1957-05-15 | 1962-09-04 | Gray Tool Co | Multiple tubing string well completion equipment |
US3011552A (en) * | 1957-09-26 | 1961-12-05 | Mcevoy Co | Apparatus for setting pipes in tension |
US3118502A (en) * | 1960-02-24 | 1964-01-21 | Cicero C Brown | Well completion apparatus |
US3223168A (en) * | 1960-03-28 | 1965-12-14 | Gulf Oil Corp | Well head apparatus |
FR1254866A (fr) * | 1960-04-26 | 1961-02-24 | Shell Int Research | Raccord pour canalisations |
US3170518A (en) * | 1960-05-23 | 1965-02-23 | Brown Oil Tools | Well method and apparatus which is particularly adapted for use in multiple zone wells |
US3100529A (en) * | 1960-06-06 | 1963-08-13 | Jersey Prod Res Co | Apparatus for positioning well pipe |
US3269755A (en) * | 1961-01-24 | 1966-08-30 | Fmc Corp | Well installation |
US3330355A (en) * | 1963-10-03 | 1967-07-11 | Fmc Corp | Method for installing a well |
US3330360A (en) * | 1964-08-10 | 1967-07-11 | Otis Eng Co | Multiple zone producing apparatus |
US3330349A (en) * | 1964-09-11 | 1967-07-11 | Halliburton Co | Method and apparatus for multiple string completions |
US3653435A (en) * | 1970-08-14 | 1972-04-04 | Exxon Production Research Co | Multi-string tubingless completion technique |
DE2229117A1 (de) * | 1972-06-15 | 1974-01-10 | Texaco Development Corp | Verankerbare vorrichtung zum richtbohren von unterwasserbohrloechern im offshore-bereich |
US4068729A (en) * | 1976-06-14 | 1978-01-17 | Standard Oil Company (Indiana) | Apparatus for multiple wells through a single caisson |
US4291724A (en) * | 1980-06-24 | 1981-09-29 | Cameron Iron Works, Inc. | Flowline switching apparatus |
US4444276A (en) * | 1980-11-24 | 1984-04-24 | Cities Service Company | Underground radial pipe network |
US4396075A (en) * | 1981-06-23 | 1983-08-02 | Wood Edward T | Multiple branch completion with common drilling and casing template |
US4415205A (en) * | 1981-07-10 | 1983-11-15 | Rehm William A | Triple branch completion with separate drilling and completion templates |
US4754817A (en) * | 1982-08-25 | 1988-07-05 | Conoco Inc. | Subsea well template for directional drilling |
FR2551491B1 (fr) * | 1983-08-31 | 1986-02-28 | Elf Aquitaine | Dispositif de forage et de mise en production petroliere multidrains |
US4749046A (en) * | 1986-05-28 | 1988-06-07 | Otis Engineering Corporation | Well drilling and completion apparatus |
US4822212A (en) * | 1987-10-28 | 1989-04-18 | Amoco Corporation | Subsea template and method for using the same |
US5145004A (en) * | 1991-03-12 | 1992-09-08 | Atlantic Richfield Company | Multiple gravel pack well completions |
US5330007A (en) | 1992-08-28 | 1994-07-19 | Marathon Oil Company | Template and process for drilling and completing multiple wells |
US5462120A (en) * | 1993-01-04 | 1995-10-31 | S-Cal Research Corp. | Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
US5560435A (en) * | 1995-04-11 | 1996-10-01 | Abb Vecto Gray Inc. | Method and apparatus for drilling multiple offshore wells from within a single conductor string |
US8004293B2 (en) | 2006-11-20 | 2011-08-23 | Applied Materials, Inc. | Plasma processing chamber with ground member integrity indicator and method for using the same |
-
1995
- 1995-07-26 US US08/508,635 patent/US5655602A/en not_active Expired - Lifetime
-
1996
- 1996-06-03 MX MX9708131A patent/MX9708131A/es unknown
- 1996-06-03 WO PCT/US1996/008321 patent/WO1997005360A1/en active IP Right Grant
- 1996-06-03 BR BR9609875A patent/BR9609875A/pt not_active IP Right Cessation
- 1996-06-03 DE DE69634511T patent/DE69634511D1/de not_active Expired - Lifetime
- 1996-06-03 AT AT96917909T patent/ATE291674T1/de not_active IP Right Cessation
- 1996-06-03 EP EP96917909A patent/EP0840834B1/de not_active Expired - Lifetime
- 1996-06-03 CA CA002215266A patent/CA2215266C/en not_active Expired - Fee Related
- 1996-06-03 RU RU97117174A patent/RU2135732C1/ru not_active IP Right Cessation
- 1996-06-03 CN CN96195731A patent/CN1191586A/zh active Pending
- 1996-06-03 AU AU60294/96A patent/AU697967B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0840834B1 (de) | 2005-03-23 |
EP0840834A4 (de) | 2000-01-26 |
CA2215266A1 (en) | 1997-02-13 |
DE69634511D1 (de) | 2005-04-28 |
MX9708131A (es) | 1997-12-31 |
WO1997005360A1 (en) | 1997-02-13 |
AU6029496A (en) | 1997-02-26 |
CN1191586A (zh) | 1998-08-26 |
BR9609875A (pt) | 1999-03-23 |
RU2135732C1 (ru) | 1999-08-27 |
AU697967B2 (en) | 1998-10-22 |
CA2215266C (en) | 2003-01-07 |
US5655602A (en) | 1997-08-12 |
EP0840834A1 (de) | 1998-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |