NO20014993L - Tredimensjonalt styreverktöy for forlenget retningsboring i borehull - Google Patents

Tredimensjonalt styreverktöy for forlenget retningsboring i borehull

Info

Publication number
NO20014993L
NO20014993L NO20014993A NO20014993A NO20014993L NO 20014993 L NO20014993 L NO 20014993L NO 20014993 A NO20014993 A NO 20014993A NO 20014993 A NO20014993 A NO 20014993A NO 20014993 L NO20014993 L NO 20014993L
Authority
NO
Norway
Prior art keywords
directional drilling
control tool
dimensional control
borehole directional
extended borehole
Prior art date
Application number
NO20014993A
Other languages
English (en)
Other versions
NO20014993D0 (no
NO323033B1 (no
Inventor
N Bruce Moore
R Ernst Krueger
Ronald E Beaufort
Original Assignee
Western Well Tool Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Well Tool Inc filed Critical Western Well Tool Inc
Publication of NO20014993D0 publication Critical patent/NO20014993D0/no
Publication of NO20014993L publication Critical patent/NO20014993L/no
Publication of NO323033B1 publication Critical patent/NO323033B1/no

Links

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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control 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
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/18—Anchoring or feeding in the borehole
    • 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
    • E21B7/062—Deflecting the direction of boreholes the tool shaft rotating inside a non-rotating guide travelling with the shaft
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
NO20014993A 1999-04-14 2001-10-12 Tredimensjonalt styreverktoy for retningsboring av et borehull i en underjordisk formasjon NO323033B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12919499P 1999-04-14 1999-04-14
US09/549,326 US6470974B1 (en) 1999-04-14 2000-04-13 Three-dimensional steering tool for controlled downhole extended-reach directional drilling
PCT/US2000/010045 WO2000061916A1 (en) 1999-04-14 2000-04-14 Three-dimensional steering tool for controlled downhole extended-reach directional drilling

Publications (3)

Publication Number Publication Date
NO20014993D0 NO20014993D0 (no) 2001-10-12
NO20014993L true NO20014993L (no) 2001-12-14
NO323033B1 NO323033B1 (no) 2006-12-27

Family

ID=26827335

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20014993A NO323033B1 (no) 1999-04-14 2001-10-12 Tredimensjonalt styreverktoy for retningsboring av et borehull i en underjordisk formasjon

Country Status (6)

Country Link
US (4) US6470974B1 (no)
AU (1) AU4459900A (no)
CA (1) CA2366002C (no)
GB (1) GB2366582B (no)
NO (1) NO323033B1 (no)
WO (1) WO2000061916A1 (no)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7013997B2 (en) * 1994-10-14 2006-03-21 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6684953B2 (en) * 2001-01-22 2004-02-03 Baker Hughes Incorporated Wireless packer/anchor setting or activation
CA2494237C (en) * 2001-06-28 2008-03-25 Halliburton Energy Services, Inc. Drill tool shaft-to-housing locking device
US20040050590A1 (en) * 2002-09-16 2004-03-18 Pirovolou Dimitrios K. Downhole closed loop control of drilling trajectory
US7084782B2 (en) 2002-12-23 2006-08-01 Halliburton Energy Services, Inc. Drill string telemetry system and method
WO2004074637A2 (en) * 2003-02-19 2004-09-02 Hartwick Partick W Sleeve piston fluid motor
US20040256162A1 (en) * 2003-06-17 2004-12-23 Noble Drilling Services Inc. Split housing for rotary steerable tool
WO2004113665A1 (en) * 2003-06-17 2004-12-29 Noble Drilling Services Inc. Modular housing for a rotary steerable tool
FR2859751B1 (fr) * 2003-09-15 2006-11-10 Cie Du Sol Installation de forage a tete rotative
GB2415972A (en) * 2004-07-09 2006-01-11 Halliburton Energy Serv Inc Closed loop steerable drilling tool
US7334642B2 (en) 2004-07-15 2008-02-26 Schlumberger Technology Corporation Constant force actuator
US7401665B2 (en) * 2004-09-01 2008-07-22 Schlumberger Technology Corporation Apparatus and method for drilling a branch borehole from an oil well
US7287605B2 (en) * 2004-11-02 2007-10-30 Scientific Drilling International Steerable drilling apparatus having a differential displacement side-force exerting mechanism
US7308795B2 (en) * 2004-12-08 2007-12-18 Hall David R Method and system for cooling electrical components downhole
GB2425790B (en) * 2005-05-05 2010-09-01 Schlumberger Holdings Steerable drilling system
US7552761B2 (en) * 2005-05-23 2009-06-30 Schlumberger Technology Corporation Method and system for wellbore communication
US8474548B1 (en) * 2005-09-12 2013-07-02 Teledrift Company Measurement while drilling apparatus and method of using the same
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8408336B2 (en) 2005-11-21 2013-04-02 Schlumberger Technology Corporation Flow guide actuation
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8297375B2 (en) * 2005-11-21 2012-10-30 Schlumberger Technology Corporation Downhole turbine
CA2545377C (en) 2006-05-01 2011-06-14 Halliburton Energy Services, Inc. Downhole motor with a continuous conductive path
GB0610814D0 (en) * 2006-06-01 2006-07-12 Geolink Uk Ltd Rotary steerable drilling tool
US7958949B2 (en) * 2007-05-31 2011-06-14 Schlumberger Technology Corporation Method and apparatus for three dimensional geosteering
GB2450498A (en) * 2007-06-26 2008-12-31 Schlumberger Holdings Battery powered rotary steerable drilling system
US7669669B2 (en) * 2007-07-30 2010-03-02 Schlumberger Technology Corporation Tool face sensor method
US7721826B2 (en) 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
US8532928B2 (en) 2007-12-18 2013-09-10 Schlumberger Technology Corporation System and method for improving surface electromagnetic surveys
GB2455734B (en) 2007-12-19 2010-03-24 Schlumberger Holdings Steerable system
US7938202B2 (en) * 2008-04-24 2011-05-10 Wwt International, Inc. Rotating drill pipe protector attachment and fastener assembly
US8286715B2 (en) * 2008-08-20 2012-10-16 Exxonmobil Research And Engineering Company Coated sleeved oil and gas well production devices
US8220563B2 (en) * 2008-08-20 2012-07-17 Exxonmobil Research And Engineering Company Ultra-low friction coatings for drill stem assemblies
CN101660404B (zh) * 2009-06-09 2012-06-20 湖南一品重机股份有限公司 水平定向钻机在硬土、软岩中的变角方法及应用
US8313082B2 (en) * 2009-06-12 2012-11-20 G. W. Lisk Company, Inc. Proportional position feedback hydraulic servo system
US9702241B2 (en) 2009-08-05 2017-07-11 Halliburton Energy Services, Inc. Azimuthal orientation determination
CN101864897B (zh) * 2010-05-18 2013-02-20 中国海洋石油总公司 一种旋转导向工具偏心位移矢量控制方法
US9638020B2 (en) * 2011-02-17 2017-05-02 Halliburton Energy Services, Inc. System and method for kicking-off a rotary steerable
US9702193B2 (en) 2011-03-30 2017-07-11 Halliburton Energy Services, Inc. Apparatus and method for rotary steering
US20140130591A1 (en) 2011-06-13 2014-05-15 Schlumberger Technology Corporation Methods and Apparatus for Determining Downhole Parameters
CA2838278C (en) 2011-06-20 2016-02-02 David L. Abney, Inc. Adjustable bent drilling tool having in situ drilling direction change capability
EA033199B1 (ru) 2011-07-08 2019-09-30 Фасткэп Системз Корпорейшн Высокотемпературное устройство аккумулирования энергии
US9558894B2 (en) 2011-07-08 2017-01-31 Fastcap Systems Corporation Advanced electrolyte systems and their use in energy storage devices
EP2737502B1 (en) * 2011-07-27 2023-07-05 Fastcap Systems Corporation Power supply for downhole instruments
CA3115288A1 (en) 2011-11-03 2013-05-10 Fastcap Systems Corporation Production logging instrument
US9556678B2 (en) 2012-05-30 2017-01-31 Penny Technologies S.À R.L. Drilling system, biasing mechanism and method for directionally drilling a borehole
US10214971B2 (en) 2012-12-17 2019-02-26 Evolution Engineering Inc. Apparatus for angular alignment of downhole sensors with high side in directional drilling
US8881846B2 (en) * 2012-12-21 2014-11-11 Halliburton Energy Services, Inc. Directional drilling control using a bendable driveshaft
CA2910916C (en) 2013-06-04 2018-06-05 Halliburton Energy Services, Inc. Dynamic geo-stationary actuation for a fully-rotating rotary steerable system
US9732560B2 (en) 2013-08-29 2017-08-15 Vermeer Manufacturing Company Drilling tool and apparatus
US10872737B2 (en) 2013-10-09 2020-12-22 Fastcap Systems Corporation Advanced electrolytes for high temperature energy storage device
EP4325025A3 (en) 2013-12-20 2024-04-24 Fastcap Systems Corporation Electromagnetic telemetry device
GB2537258B (en) * 2013-12-23 2017-05-17 Halliburton Energy Services Inc Surface actuated downhole adjustable mud motor
US10605005B2 (en) 2014-12-09 2020-03-31 Schlumberger Technology Corporation Steerable drill bit system
US10024102B2 (en) * 2014-12-12 2018-07-17 Wwt North America Holdings, Inc. Oscillating mud motor
EP3201420B1 (en) * 2014-12-29 2020-01-22 Halliburton Energy Services Inc. Variable stiffness fixed bend housing for directional drilling
CN107533919A (zh) 2015-01-27 2018-01-02 快帽系统公司 宽温度范围超级电容器
WO2016204756A1 (en) * 2015-06-17 2016-12-22 Halliburton Energy Services, Inc. Drive shaft actuation using radio frequency identification
US10655394B2 (en) 2015-07-09 2020-05-19 Halliburton Energy Services, Inc. Drilling apparatus with fixed and variable angular offsets
US10907412B2 (en) 2016-03-31 2021-02-02 Schlumberger Technology Corporation Equipment string communication and steering
US10746009B2 (en) 2016-06-02 2020-08-18 Baker Hughes, A Ge Company, Llc Depth-based borehole trajectory control
US10415363B2 (en) 2016-09-30 2019-09-17 Weatherford Technology Holdings, Llc Control for rotary steerable system
US10364608B2 (en) 2016-09-30 2019-07-30 Weatherford Technology Holdings, Llc Rotary steerable system having multiple independent actuators
GB2556631A (en) * 2016-11-17 2018-06-06 Deep Casing Tools Ltd Rotary drive apparatus
CN108278081B (zh) * 2017-01-05 2020-05-22 通用电气公司 基于不平衡力测量进行控制的旋转导向钻井系统和方法
US10287821B2 (en) 2017-03-07 2019-05-14 Weatherford Technology Holdings, Llc Roll-stabilized rotary steerable system
US10641077B2 (en) 2017-04-13 2020-05-05 Weatherford Technology Holdings, Llc Determining angular offset between geomagnetic and gravitational fields while drilling wellbore
US20190316444A1 (en) * 2018-04-13 2019-10-17 Pavlin B. Entchev Coiled Tubing Assembly
US11125074B2 (en) 2018-04-26 2021-09-21 Nabors Drilling Technologies Usa, Inc. Marker signal for subterranean drilling

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US35790A (en) * 1862-07-01 Improvement in handsawing-machines
US3285350A (en) 1964-04-23 1966-11-15 Henderson John Keller Method and apparatus for controllably drilling off-vertical holes
US3258350A (en) * 1965-02-12 1966-06-28 Corning Glass Works Fusion seals and their production
US4076084A (en) 1973-07-16 1978-02-28 Amoco Production Company Oriented drilling tool
DE2911419C2 (de) 1979-03-23 1984-03-01 Wolfgang Dr.-Ing. 7500 Karlsruhe Ständer Vorrichtung zum richtungsgesteuerten Herstellen von Bohrlöchern in Lockergestein
US4454598A (en) 1980-01-21 1984-06-12 Dresser Industries, Inc. Drilling orientation tool
US4462469A (en) 1981-07-20 1984-07-31 Amf Inc. Fluid motor and telemetry system
DE3403239C1 (de) 1984-01-31 1985-06-27 Christensen, Inc., Salt Lake City, Utah Vorrichtungen zum wahlweisen Geradeaus- oder Richtungsbohren in unterirdische Gesteinsformationen
US4597454A (en) 1984-06-12 1986-07-01 Schoeffler William N Controllable downhole directional drilling tool and method
GB2177738B (en) 1985-07-13 1988-08-03 Cambridge Radiation Tech Control of drilling courses in the drilling of bore holes
DE3680402D1 (de) 1985-05-14 1991-08-29 Cherrington Corp Vorrichtung und verfahren zum herstellen eines vergroesserten gekruemmten bohrlochs im untergrund und zum installieren eines rohres darin.
US4637479A (en) 1985-05-31 1987-01-20 Schlumberger Technology Corporation Methods and apparatus for controlled directional drilling of boreholes
US4612987A (en) * 1985-08-20 1986-09-23 Cheek Alton E Directional drilling azimuth control system
US4733733A (en) 1986-02-11 1988-03-29 Nl Industries, Inc. Method of controlling the direction of a drill bit in a borehole
US4828050A (en) 1986-05-08 1989-05-09 Branham Industries, Inc. Single pass drilling apparatus and method for forming underground arcuate boreholes
US4739841A (en) 1986-08-15 1988-04-26 Anadrill Incorporated Methods and apparatus for controlled directional drilling of boreholes
US4854397A (en) 1988-09-15 1989-08-08 Amoco Corporation System for directional drilling and related method of use
US4928776A (en) 1988-10-31 1990-05-29 Falgout Sr Thomas E Deviation control tool
FR2641316B1 (fr) 1988-12-30 1995-09-08 Inst Francais Du Petrole Garniture pour forage a trajectoire controlee comportant un element coude a angle variable et utilisation de cette garniture
FR2648861B1 (fr) 1989-06-26 1996-06-14 Inst Francais Du Petrole Dispositif pour guider un train de tiges dans un puits
GB8919466D0 (en) * 1989-08-26 1989-10-11 Wellworthy Ltd Pistons
DE3939538A1 (de) 1989-11-30 1991-06-13 Eastman Christensen Co Richtungsbohrwerkzeug
US5220963A (en) 1989-12-22 1993-06-22 Patton Consulting, Inc. System for controlled drilling of boreholes along planned profile
US5172765A (en) 1990-03-15 1992-12-22 Conoco Inc. Method using spoolable composite tubular member with energy conductors
CA2024061C (en) 1990-08-27 2001-10-02 Laurier Emile Comeau System for drilling deviated boreholes
GB9025444D0 (en) 1990-11-22 1991-01-09 Appleton Robert P Drilling wells
DE4037262C2 (de) 1990-11-23 1994-05-05 Schwing Hydraulik Elektronik Zielbohrstange
US5069358A (en) 1991-01-03 1991-12-03 John D. Brush & Co., Inc. Media case
DE4100335C2 (de) 1991-01-08 1995-11-23 Tuerautomation Fehraltorf Ag F Elektromechanischer Drehflügelantrieb für Schwenkflügel von Türen oder dergleichen
AU1208692A (en) 1991-01-31 1992-09-07 Bob J. Patton System for controlled drilling of boreholes along planned profile
US5139094A (en) 1991-02-01 1992-08-18 Anadrill, Inc. Directional drilling methods and apparatus
DE4104992C2 (de) 1991-02-19 1994-06-09 Bergwerksverband Gmbh Vorrichtung zur zielgenauen Steuerung von Überlagerungsbohrungen
US5096003A (en) 1991-03-15 1992-03-17 Kinnan Frank R Method and apparatus for subsoil drilling
FR2675197B1 (fr) 1991-04-12 1993-07-16 Leroy Andre Appareil de forage petrolier, gazier ou geothermique.
US5410303A (en) 1991-05-15 1995-04-25 Baroid Technology, Inc. System for drilling deivated boreholes
US5193628A (en) 1991-06-03 1993-03-16 Utd Incorporated Method and apparatus for determining path orientation of a passageway
US5265682A (en) 1991-06-25 1993-11-30 Camco Drilling Group Limited Steerable rotary drilling systems
AU1321892A (en) 1991-12-09 1993-07-19 Bob J. Patton System for controlled drilling of boreholes along planned profile
WO1993012319A1 (en) 1991-12-09 1993-06-24 Patton Bob J System for controlled drilling of boreholes along planned profile
US5332048A (en) * 1992-10-23 1994-07-26 Halliburton Company Method and apparatus for automatic closed loop drilling system
US5325714A (en) 1993-05-12 1994-07-05 Baker Hughes Incorporated Steerable motor system with integrated formation evaluation logging capacity
SE508950C2 (sv) 1993-12-29 1998-11-16 Lars Liw Styrverktyg för bergborrning
US5458208A (en) * 1994-07-05 1995-10-17 Clarke; Ralph L. Directional drilling using a rotating slide sub
US5443129A (en) 1994-07-22 1995-08-22 Smith International, Inc. Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole
US6206108B1 (en) * 1995-01-12 2001-03-27 Baker Hughes Incorporated Drilling system with integrated bottom hole assembly
US6088294A (en) * 1995-01-12 2000-07-11 Baker Hughes Incorporated Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction
GB9503827D0 (en) 1995-02-25 1995-04-19 Camco Drilling Group Ltd "Improvements in or relating to steerable rotary drilling systems
GB9507008D0 (en) 1995-04-05 1995-05-31 Mcloughlin Stephen J A downhole adjustable device for trajectory control in the drilling of deviated wells
GB2299598B (en) 1995-04-07 1999-03-17 Weatherford Lamb Apparatus for use in a wellbore
US5585726A (en) 1995-05-26 1996-12-17 Utilx Corporation Electronic guidance system and method for locating a discrete in-ground boring device
US6003606A (en) 1995-08-22 1999-12-21 Western Well Tool, Inc. Puller-thruster downhole tool
US5738178A (en) 1995-11-17 1998-04-14 Baker Hughes Incorporated Method and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotation
GB9523901D0 (en) 1995-11-22 1996-01-24 Astec Dev Ltd Bend and orientation apparatus
GB2312905A (en) 1996-05-09 1997-11-12 Camco Drilling Group Ltd Automatically steered drill assembly
AUPO062296A0 (en) 1996-06-25 1996-07-18 Gray, Ian A system for directional control of drilling
US5794703A (en) 1996-07-03 1998-08-18 Ctes, L.C. Wellbore tractor and method of moving an item through a wellbore
US5752572A (en) 1996-09-10 1998-05-19 Inco Limited Tractor for remote movement and pressurization of a rock drill
US6190370B1 (en) * 1997-07-25 2001-02-20 Arrow International, Inc. Devices, systems and methods for determining proper placement of epidural catheters
US6296066B1 (en) 1997-10-27 2001-10-02 Halliburton Energy Services, Inc. Well system
US6092610A (en) * 1998-02-05 2000-07-25 Schlumberger Technology Corporation Actively controlled rotary steerable system and method for drilling wells
US6105690A (en) * 1998-05-29 2000-08-22 Aps Technology, Inc. Method and apparatus for communicating with devices downhole in a well especially adapted for use as a bottom hole mud flow sensor
US6158529A (en) * 1998-12-11 2000-12-12 Schlumberger Technology Corporation Rotary steerable well drilling system utilizing sliding sleeve
US6241031B1 (en) 1998-12-18 2001-06-05 Western Well Tool, Inc. Electro-hydraulically controlled tractor
US6109372A (en) * 1999-03-15 2000-08-29 Schlumberger Technology Corporation Rotary steerable well drilling system utilizing hydraulic servo-loop
CA2474232C (en) 1999-07-12 2007-06-19 Halliburton Energy Services, Inc. Anti-rotation device for a steerable rotary drilling device

Also Published As

Publication number Publication date
NO20014993D0 (no) 2001-10-12
AU4459900A (en) 2000-11-14
GB2366582B (en) 2003-12-24
CA2366002C (en) 2006-08-22
US20040173381A1 (en) 2004-09-09
US20030051919A1 (en) 2003-03-20
GB2366582A (en) 2002-03-13
GB0123904D0 (en) 2001-11-28
US20040084219A1 (en) 2004-05-06
US6470974B1 (en) 2002-10-29
US6942044B2 (en) 2005-09-13
US6708783B2 (en) 2004-03-23
NO323033B1 (no) 2006-12-27
CA2366002A1 (en) 2000-10-19
WO2000061916A1 (en) 2000-10-19

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