NO20040155L - Styring med lukket sloyfe pa en borerigg - Google Patents

Styring med lukket sloyfe pa en borerigg

Info

Publication number
NO20040155L
NO20040155L NO20040155A NO20040155A NO20040155L NO 20040155 L NO20040155 L NO 20040155L NO 20040155 A NO20040155 A NO 20040155A NO 20040155 A NO20040155 A NO 20040155A NO 20040155 L NO20040155 L NO 20040155L
Authority
NO
Norway
Prior art keywords
closed loop
loop control
drilling rig
rig
drilling
Prior art date
Application number
NO20040155A
Other languages
English (en)
Inventor
Jean-Michel Hache
Saad Bargach
Original Assignee
Schlumberger Holdings
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 Schlumberger Holdings filed Critical Schlumberger Holdings
Publication of NO20040155L publication Critical patent/NO20040155L/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
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
NO20040155A 2003-01-14 2004-01-13 Styring med lukket sloyfe pa en borerigg NO20040155L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/248,369 US6662110B1 (en) 2003-01-14 2003-01-14 Drilling rig closed loop controls

Publications (1)

Publication Number Publication Date
NO20040155L true NO20040155L (no) 2004-07-15

Family

ID=29711642

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20040155A NO20040155L (no) 2003-01-14 2004-01-13 Styring med lukket sloyfe pa en borerigg

Country Status (4)

Country Link
US (1) US6662110B1 (no)
CA (1) CA2453015C (no)
GB (1) GB2397399B (no)
NO (1) NO20040155L (no)

Families Citing this family (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6415877B1 (en) * 1998-07-15 2002-07-09 Deep Vision Llc Subsea wellbore drilling system for reducing bottom hole pressure
US6892812B2 (en) * 2002-05-21 2005-05-17 Noble Drilling Services Inc. Automated method and system for determining the state of well operations and performing process evaluation
AU2003303398A1 (en) 2002-12-23 2004-07-22 The Charles Stark Draper Laboratory, Inc. Dowhole chemical sensor and method of using same
US7128167B2 (en) * 2002-12-27 2006-10-31 Schlumberger Technology Corporation System and method for rig state detection
US7528946B2 (en) * 2003-03-31 2009-05-05 The Charles Machine Works, Inc. System for detecting deflection of a boring tool
US7832500B2 (en) * 2004-03-01 2010-11-16 Schlumberger Technology Corporation Wellbore drilling method
US7054750B2 (en) * 2004-03-04 2006-05-30 Halliburton Energy Services, Inc. Method and system to model, measure, recalibrate, and optimize control of the drilling of a borehole
US7222681B2 (en) * 2005-02-18 2007-05-29 Pathfinder Energy Services, Inc. Programming method for controlling a downhole steering tool
US7461831B2 (en) * 2006-05-15 2008-12-09 Mosley Robert E Telescoping workover rig
CA2765069C (en) 2006-11-07 2014-04-08 Halliburton Energy Services, Inc. Method of drilling using an offshore riser
US7967081B2 (en) 2006-11-09 2011-06-28 Smith International, Inc. Closed-loop physical caliper measurements and directional drilling method
US8118114B2 (en) * 2006-11-09 2012-02-21 Smith International Inc. Closed-loop control of rotary steerable blades
US7860593B2 (en) 2007-05-10 2010-12-28 Canrig Drilling Technology Ltd. Well prog execution facilitation system and method
EP2118441B1 (en) * 2007-01-08 2016-08-10 Baker Hughes Incorporated Drilling components and systems to dynamically control drilling dysfunctions and methods of drilling a well with same
EA015308B1 (ru) 2007-02-02 2011-06-30 Эксонмобил Апстрим Рисерч Компани Моделирование и расчет системы бурения скважины с учетом вибраций
US7814989B2 (en) * 2007-05-21 2010-10-19 Schlumberger Technology Corporation System and method for performing a drilling operation in an oilfield
US20080314641A1 (en) * 2007-06-20 2008-12-25 Mcclard Kevin Directional Drilling System and Software Method
US8733438B2 (en) * 2007-09-18 2014-05-27 Schlumberger Technology Corporation System and method for obtaining load measurements in a wellbore
US8121971B2 (en) * 2007-10-30 2012-02-21 Bp Corporation North America Inc. Intelligent drilling advisor
EP2222937B1 (en) * 2007-10-30 2014-12-31 BP Corporation North America Inc. An intelligent drilling advisor
DK2288783T3 (en) * 2008-04-25 2016-05-17 Weatherford Technology Holdings Llc METHOD FOR CONTROLLING TORQUE APPLICABLE a tubular CONNECTION
AU2009260477B2 (en) * 2008-06-17 2014-07-17 Exxonmobil Upstream Research Company Methods and systems for mitigating drilling vibrations
RU2380533C1 (ru) * 2008-07-11 2010-01-27 Сергей Николаевич Волковинский Мобильная станция контроля параметров бурения
US8413744B2 (en) * 2008-07-31 2013-04-09 Baker Hughes Incorporated System and method for controlling the integrity of a drilling system
EP3236385B1 (en) 2008-11-21 2018-11-21 Exxonmobil Upstream Research Company Methods and systems for modeling, designing, and conducting drilling operations that consider vibrations
US8281875B2 (en) * 2008-12-19 2012-10-09 Halliburton Energy Services, Inc. Pressure and flow control in drilling operations
US8783382B2 (en) 2009-01-15 2014-07-22 Schlumberger Technology Corporation Directional drilling control devices and methods
US7823656B1 (en) 2009-01-23 2010-11-02 Nch Corporation Method for monitoring drilling mud properties
NO338750B1 (no) 2009-03-02 2016-10-17 Drilltronics Rig Systems As Fremgangsmåte og system for automatisert styring av boreprosess
US9567843B2 (en) * 2009-07-30 2017-02-14 Halliburton Energy Services, Inc. Well drilling methods with event detection
WO2011017419A2 (en) * 2009-08-05 2011-02-10 Shell Oil Company Systems and methods for monitoring corrosion in a well
US9598947B2 (en) 2009-08-07 2017-03-21 Exxonmobil Upstream Research Company Automatic drilling advisory system based on correlation model and windowed principal component analysis
MY158575A (en) 2009-08-07 2016-10-14 Exxonmobil Upstream Res Co Methods to estimate downhole drilling vibration indices from surface measurement
MY157452A (en) * 2009-08-07 2016-06-15 Exxonmobil Upstream Res Co Methods to estimate downhole drilling vibration amplitude from surface measurement
US8261855B2 (en) 2009-11-11 2012-09-11 Flanders Electric, Ltd. Methods and systems for drilling boreholes
US8408331B2 (en) * 2010-01-08 2013-04-02 Schlumberger Technology Corporation Downhole downlinking system employing a differential pressure transducer
US8453764B2 (en) 2010-02-01 2013-06-04 Aps Technology, Inc. System and method for monitoring and controlling underground drilling
US8201628B2 (en) 2010-04-27 2012-06-19 Halliburton Energy Services, Inc. Wellbore pressure control with segregated fluid columns
US8820405B2 (en) 2010-04-27 2014-09-02 Halliburton Energy Services, Inc. Segregating flowable materials in a well
US8570833B2 (en) 2010-05-24 2013-10-29 Schlumberger Technology Corporation Downlinking communication system and method
US8792304B2 (en) * 2010-05-24 2014-07-29 Schlumberger Technology Corporation Downlinking communication system and method using signal transition detection
US9027671B2 (en) * 2010-11-12 2015-05-12 National Oilwell Varco, L.P. Apparatus and method for automated drilling of a borehole in a subsurface formation
US9249638B2 (en) 2011-04-08 2016-02-02 Halliburton Energy Services, Inc. Wellbore pressure control with optimized pressure drilling
EP2694772A4 (en) 2011-04-08 2016-02-24 Halliburton Energy Services Inc AUTOMATIC LEVEL TUBE PRESSURE CONTROL ON HOLES
US9080407B2 (en) 2011-05-09 2015-07-14 Halliburton Energy Services, Inc. Pressure and flow control in drilling operations
US8726743B2 (en) 2011-06-22 2014-05-20 Weatherford/Lamb, Inc. Shoulder yielding detection during tubular makeup
US9512708B2 (en) * 2011-06-29 2016-12-06 Halliburton Energy Services, Inc. System and method for automatic weight-on-bit sensor calibration
US9285794B2 (en) 2011-09-07 2016-03-15 Exxonmobil Upstream Research Company Drilling advisory systems and methods with decision trees for learning and application modes
BR112014004638A2 (pt) * 2011-09-08 2017-03-14 Halliburton Energy Services Inc método para manutenção de uma temperatura desejada em um local em um poço, e, sistema de poço
US9447647B2 (en) 2011-11-08 2016-09-20 Halliburton Energy Services, Inc. Preemptive setpoint pressure offset for flow diversion in drilling operations
US9593567B2 (en) 2011-12-01 2017-03-14 National Oilwell Varco, L.P. Automated drilling system
US9953114B2 (en) 2012-03-27 2018-04-24 Exxonmobil Upstream Research Company Designing a drillstring
CN102619470B (zh) * 2012-04-24 2013-12-04 中国石油天然气集团公司 控制随钻扩眼时钻柱横向振动的方法
US9157313B2 (en) 2012-06-01 2015-10-13 Intelliserv, Llc Systems and methods for detecting drillstring loads
WO2014011171A1 (en) * 2012-07-12 2014-01-16 Halliburton Energy Services, Inc. Systems and methods of drilling control
US9482084B2 (en) 2012-09-06 2016-11-01 Exxonmobil Upstream Research Company Drilling advisory systems and methods to filter data
NL2010033C2 (en) * 2012-12-20 2014-06-23 Cofely Experts B V A method of and a device for determining operational parameters of a computational model of borehole equipment, an electronic controller and borehole equipment.
CN103061738B (zh) * 2012-12-28 2015-08-12 三一重工股份有限公司 旋挖钻机、旋挖钻机的辅助施工系统及方法
US10428637B2 (en) 2013-03-04 2019-10-01 Fereidoun Abbassian System and console for monitoring and managing well site operations
WO2014160625A1 (en) * 2013-03-29 2014-10-02 Schlumberger Canada Limited Calibrations for a well drilling apparatus
US9617790B2 (en) 2013-05-23 2017-04-11 Halliburton Energy Services, Inc. Downhole drilling motor and method of use
US9611709B2 (en) 2013-06-26 2017-04-04 Baker Hughes Incorporated Closed loop deployment of a work string including a composite plug in a wellbore
US9631446B2 (en) 2013-06-26 2017-04-25 Impact Selector International, Llc Impact sensing during jarring operations
US11047221B2 (en) 2013-06-30 2021-06-29 Fereidoun Abbassian System and console for monitoring and managing well site operations
USD843381S1 (en) 2013-07-15 2019-03-19 Aps Technology, Inc. Display screen or portion thereof with a graphical user interface for analyzing and presenting drilling data
US10472944B2 (en) 2013-09-25 2019-11-12 Aps Technology, Inc. Drilling system and associated system and method for monitoring, controlling, and predicting vibration in an underground drilling operation
US9771788B2 (en) * 2014-03-25 2017-09-26 Canrig Drilling Technology Ltd. Stiction control
US10260332B2 (en) 2014-05-02 2019-04-16 Kongsberg Oil And Gas Technologies As System and console for monitoring and managing well site operations
US10323502B2 (en) 2014-05-02 2019-06-18 Kongsberg Oil And Gas Technologies As System and console for monitoring and managing tripping operations at a well site
US10301923B2 (en) 2014-05-02 2019-05-28 Kongsberg Oil And Gas Technologies As System and console for monitoring and managing well site drilling operations
US9828845B2 (en) 2014-06-02 2017-11-28 Baker Hughes, A Ge Company, Llc Automated drilling optimization
WO2016014377A2 (en) 2014-07-23 2016-01-28 Schlumberger Canada Limited Tar mat formation prediction in late-charge reservoirs
US10392936B2 (en) 2014-07-23 2019-08-27 Schlumberger Technology Corporation Tar mat formation prediction in late-charge reservoirs
EP2985408A1 (en) * 2014-08-11 2016-02-17 Services Petroliers Schlumberger Apparatus and methods for well cementing
WO2016053672A1 (en) * 2014-09-29 2016-04-07 Schlumberger Canada Limited Absolute time reference based control system for well construction automation
US20160160617A1 (en) * 2014-12-04 2016-06-09 Baker Hughes Incorporated Sand control using shape memory materials
US9951602B2 (en) 2015-03-05 2018-04-24 Impact Selector International, Llc Impact sensing during jarring operations
US20170122092A1 (en) 2015-11-04 2017-05-04 Schlumberger Technology Corporation Characterizing responses in a drilling system
NL2016859B1 (en) 2016-05-30 2017-12-11 Engie Electroproject B V A method of and a device for estimating down hole speed and down hole torque of borehole drilling equipment while drilling, borehole equipment and a computer program product.
US10422450B2 (en) 2017-02-03 2019-09-24 Weatherford Technology Holdings, Llc Autonomous connection evaluation and automated shoulder detection for tubular makeup
US10316619B2 (en) 2017-03-16 2019-06-11 Saudi Arabian Oil Company Systems and methods for stage cementing
US10544648B2 (en) 2017-04-12 2020-01-28 Saudi Arabian Oil Company Systems and methods for sealing a wellbore
US10557330B2 (en) 2017-04-24 2020-02-11 Saudi Arabian Oil Company Interchangeable wellbore cleaning modules
US11422999B2 (en) 2017-07-17 2022-08-23 Schlumberger Technology Corporation System and method for using data with operation context
US10487604B2 (en) 2017-08-02 2019-11-26 Saudi Arabian Oil Company Vibration-induced installation of wellbore casing
US10378298B2 (en) 2017-08-02 2019-08-13 Saudi Arabian Oil Company Vibration-induced installation of wellbore casing
US10597962B2 (en) 2017-09-28 2020-03-24 Saudi Arabian Oil Company Drilling with a whipstock system
US10378339B2 (en) 2017-11-08 2019-08-13 Saudi Arabian Oil Company Method and apparatus for controlling wellbore operations
CN112105796B (zh) 2018-03-09 2024-10-25 斯伦贝谢技术有限公司 集成井施工系统操作
US10689913B2 (en) 2018-03-21 2020-06-23 Saudi Arabian Oil Company Supporting a string within a wellbore with a smart stabilizer
US10689914B2 (en) 2018-03-21 2020-06-23 Saudi Arabian Oil Company Opening a wellbore with a smart hole-opener
US10794170B2 (en) 2018-04-24 2020-10-06 Saudi Arabian Oil Company Smart system for selection of wellbore drilling fluid loss circulation material
US10612362B2 (en) 2018-05-18 2020-04-07 Saudi Arabian Oil Company Coiled tubing multifunctional quad-axial visual monitoring and recording
CN109029570B (zh) * 2018-07-24 2020-09-29 中国石油集团渤海钻探工程有限公司 一种井下工具综合参数闭环检测与评价系统及方法
CN109209336A (zh) * 2018-11-07 2019-01-15 西安石油大学 一种基于井底钻压的自动送钻系统及控制方法
US10844704B2 (en) * 2018-11-15 2020-11-24 Sanvean Technologies Llc Surface recognition and downlink receiver
US10907466B2 (en) 2018-12-07 2021-02-02 Schlumberger Technology Corporation Zone management system and equipment interlocks
US10890060B2 (en) 2018-12-07 2021-01-12 Schlumberger Technology Corporation Zone management system and equipment interlocks
US10844675B2 (en) 2018-12-21 2020-11-24 Weatherford Technology Holdings, Llc Autonomous connection makeup and evaluation
CN110259433B (zh) * 2019-06-28 2023-03-24 宝鸡石油机械有限责任公司 一种实体钻机数字化监测方法
US11480014B2 (en) 2019-12-13 2022-10-25 Caterpillar Global Mining Equipment Llc Automatic force adjustment control system for mobile drilling machines
US11299968B2 (en) 2020-04-06 2022-04-12 Saudi Arabian Oil Company Reducing wellbore annular pressure with a release system
US11396789B2 (en) 2020-07-28 2022-07-26 Saudi Arabian Oil Company Isolating a wellbore with a wellbore isolation system
US11414942B2 (en) 2020-10-14 2022-08-16 Saudi Arabian Oil Company Packer installation systems and related methods
US11624265B1 (en) 2021-11-12 2023-04-11 Saudi Arabian Oil Company Cutting pipes in wellbores using downhole autonomous jet cutting tools

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019148A (en) 1975-12-29 1977-04-19 Sperry-Sun, Inc. Lock-in noise rejection circuit
US4254481A (en) 1979-08-10 1981-03-03 Sperry-Sun, Inc. Borehole telemetry system automatic gain control
US4507735A (en) 1982-06-21 1985-03-26 Trans-Texas Energy, Inc. Method and apparatus for monitoring and controlling well drilling parameters
US4954998A (en) 1989-01-23 1990-09-04 Western Atlas International, Inc. Method for reducing noise in drill string signals
US5220963A (en) 1989-12-22 1993-06-22 Patton Consulting, Inc. System for controlled drilling of boreholes along planned profile
CA2052691C (en) 1990-10-04 2004-12-07 Tommy M. Warren Method of dynamically monitoring the orientation of a curve drilling assembly
US5160925C1 (en) 1991-04-17 2001-03-06 Halliburton Co Short hop communication link for downhole mwd system
US5269383A (en) 1992-01-15 1993-12-14 Drilex Systems, Inc. Navigable downhole drilling system
US5314030A (en) 1992-08-12 1994-05-24 Massachusetts Institute Of Technology System for continuously guided drilling
US5332048A (en) 1992-10-23 1994-07-26 Halliburton Company Method and apparatus for automatic closed loop drilling system
EP0718641B1 (en) 1994-12-12 2003-08-13 Baker Hughes Incorporated Drilling system with downhole apparatus for transforming multiple downhole sensor measurements into parameters of interest and for causing the drilling direction to change in response thereto
US5842149A (en) 1996-10-22 1998-11-24 Baker Hughes Incorporated Closed loop drilling system
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
US6206108B1 (en) 1995-01-12 2001-03-27 Baker Hughes Incorporated Drilling system with integrated bottom hole assembly
US6012015A (en) 1995-02-09 2000-01-04 Baker Hughes Incorporated Control model for production wells
US5646611B1 (en) 1995-02-24 2000-03-21 Halliburton Co System and method for indirectly determining inclination at the bit
WO1997015749A2 (en) * 1995-10-23 1997-05-01 Baker Hughes Incorporated Closed loop drilling system
US5857530A (en) 1995-10-26 1999-01-12 University Technologies International Inc. Vertical positioning system for drilling boreholes
GB9607297D0 (en) 1996-04-09 1996-06-12 Anadrill Int Sa Noise detection and suppression system for wellbore telemetry
US5880680A (en) 1996-12-06 1999-03-09 The Charles Machine Works, Inc. Apparatus and method for determining boring direction when boring underground
US6609579B2 (en) 1997-01-30 2003-08-26 Baker Hughes Incorporated Drilling assembly with a steering device for coiled-tubing operations
US6296066B1 (en) 1997-10-27 2001-10-02 Halliburton Energy Services, Inc. Well system
US6347282B2 (en) 1997-12-04 2002-02-12 Baker Hughes Incorporated Measurement-while-drilling assembly using gyroscopic devices and methods of bias removal
US6340063B1 (en) 1998-01-21 2002-01-22 Halliburton Energy Services, Inc. Steerable rotary directional drilling method
US6092610A (en) 1998-02-05 2000-07-25 Schlumberger Technology Corporation Actively controlled rotary steerable system and method for drilling wells
US6101444A (en) 1998-08-21 2000-08-08 Stoner; Michael S. Numerical control unit for wellbore drilling
US6310559B1 (en) 1998-11-18 2001-10-30 Schlumberger Technology Corp. Monitoring performance of downhole equipment
US6308787B1 (en) 1999-09-24 2001-10-30 Vermeer Manufacturing Company Real-time control system and method for controlling an underground boring machine
GB2354852B (en) * 1999-10-01 2001-11-28 Schlumberger Holdings Method for updating an earth model using measurements gathered during borehole construction
US6257356B1 (en) 1999-10-06 2001-07-10 Aps Technology, Inc. Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using same
US6405808B1 (en) 2000-03-30 2002-06-18 Schlumberger Technology Corporation Method for increasing the efficiency of drilling a wellbore, improving the accuracy of its borehole trajectory and reducing the corresponding computed ellise of uncertainty
US6419014B1 (en) 2000-07-20 2002-07-16 Schlumberger Technology Corporation Apparatus and method for orienting a downhole tool
GB2371625B (en) * 2000-09-29 2003-09-10 Baker Hughes Inc Method and apparatus for prediction control in drilling dynamics using neural network
US6968909B2 (en) * 2002-03-06 2005-11-29 Schlumberger Technology Corporation Realtime control of a drilling system using the output from combination of an earth model and a drilling process model
US6944547B2 (en) * 2002-07-26 2005-09-13 Varco I/P, Inc. Automated rig control management system

Also Published As

Publication number Publication date
CA2453015A1 (en) 2004-07-14
GB0328795D0 (en) 2004-01-14
GB2397399B (en) 2006-09-06
US6662110B1 (en) 2003-12-09
CA2453015C (en) 2007-12-04
GB2397399A (en) 2004-07-21

Similar Documents

Publication Publication Date Title
NO20040155L (no) Styring med lukket sloyfe pa en borerigg
GB0415453D0 (en) Closed loop control bore hole drilling system
EP1627127A4 (en) QUICKLY MOVING DRILLING FRAME
FI20030320L (fi) Järjestely kallioporauksen ohjaamiseksi
NO20034077L (no) Ned-i-hulls lukkesloyfestyring av borebane
GB2431950B (en) Drilling wellbores with optimal physical drill string conditions
DE60305733D1 (de) Bohren eines bohrlochs
NO20054337L (no) Boring med foringsrorsperre
NO20053813L (no) Bronnborestreng sammenstilling
SE0400859L (sv) Kärnborrningsaggregat
NO20034418D0 (no) Underrömmer for borehull
DE602004015494D1 (de) Expandierbare bohrlochanordnung
DE602004031205D1 (de) Bohrmeissel
EP1896691A4 (en) ARRANGEMENT FOR POSITIONING A ROCK DRILL AT A DRILLING POINT
FI20020352A7 (fi) Järjestely iskevän kallionporauksen ohjaamiseksi
DE10394164D2 (de) Tieflochbohrer EB800
DE10394152D2 (de) Tieflochbohrer EB90
DE50311365D1 (de) Bohrvorrichtung
DE50304839D1 (de) Gesteinsbohrer
DK1529432T3 (da) Såmaskine med en reguleringsanordning
DE60311070D1 (de) Bohrstrangelement
DE602005009443D1 (de) Bitratensteuereinrichtung
FI20002334A0 (fi) Kallionporauslaite
NO20033997L (no) Fremgangsmate for a logge et borehull
ZA200305240B (en) Drill string for upward drilling and components therefor.

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application