EA200501073A1 - Способ и система для предотвращения или смягчения нежелательных событий бурения - Google Patents

Способ и система для предотвращения или смягчения нежелательных событий бурения

Info

Publication number
EA200501073A1
EA200501073A1 EA200501073A EA200501073A EA200501073A1 EA 200501073 A1 EA200501073 A1 EA 200501073A1 EA 200501073 A EA200501073 A EA 200501073A EA 200501073 A EA200501073 A EA 200501073A EA 200501073 A1 EA200501073 A1 EA 200501073A1
Authority
EA
Eurasian Patent Office
Prior art keywords
drilling
determined
undesirable
mitigation
prevention
Prior art date
Application number
EA200501073A
Other languages
English (en)
Other versions
EA007847B1 (ru
Inventor
Лейла Хотеит
Джонатан Данлоп
Уолтер Алдред
Ричард Михан
Original Assignee
Шлюмбергер Текнолоджи Б.В.
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 Шлюмбергер Текнолоджи Б.В. filed Critical Шлюмбергер Текнолоджи Б.В.
Publication of EA200501073A1 publication Critical patent/EA200501073A1/ru
Publication of EA007847B1 publication Critical patent/EA007847B1/ru

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06NCOMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N7/00Computing arrangements based on specific mathematical models
    • G06N7/01Probabilistic graphical models, e.g. probabilistic networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Evolutionary Computation (AREA)
  • Computational Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Algebra (AREA)
  • Probability & Statistics with Applications (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)

Abstract

Раскрыты способ и система для предотвращения или смягчения нежелательных событий бурения во время процесса бурения. Состояние буровой установки определяется предпочтительно автоматически на основе данных измерения на поверхности и/или в скважине. Одно или несколько нежелательных событий бурения определяются посредством корреляции собранных данных измерения с определенным состоянием. Определяется действие буровой установки, которое предотвращает или смягчает нежелательное событие бурения. Наконец, процесс бурения перерегулируется командным выполнением действия. Алгоритм, используемый при детектировании наиболее вероятного состояния, предпочтительно является вероятностным по природе и более предпочтительно основан на методах фильтрации частиц.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200501073A 2002-12-31 2003-12-22 Способ и система для предотвращения или смягчения нежелательных событий бурения EA007847B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/334,437 US6868920B2 (en) 2002-12-31 2002-12-31 Methods and systems for averting or mitigating undesirable drilling events
PCT/GB2003/005601 WO2004059124A1 (en) 2002-12-31 2003-12-22 Method and system for averting or mitigating undesirable drilling events

Publications (2)

Publication Number Publication Date
EA200501073A1 true EA200501073A1 (ru) 2005-12-29
EA007847B1 EA007847B1 (ru) 2007-02-27

Family

ID=32655052

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200501073A EA007847B1 (ru) 2002-12-31 2003-12-22 Способ и система для предотвращения или смягчения нежелательных событий бурения

Country Status (8)

Country Link
US (1) US6868920B2 (ru)
AU (1) AU2003290308A1 (ru)
CA (1) CA2509704C (ru)
EA (1) EA007847B1 (ru)
GB (1) GB2410971B (ru)
MX (1) MXPA05007093A (ru)
NO (1) NO337475B1 (ru)
WO (1) WO2004059124A1 (ru)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050242003A1 (en) 2004-04-29 2005-11-03 Eric Scott Automatic vibratory separator
US7278540B2 (en) * 2004-04-29 2007-10-09 Varco I/P, Inc. Adjustable basket vibratory separator
US7331469B2 (en) * 2004-04-29 2008-02-19 Varco I/P, Inc. Vibratory separator with automatically adjustable beach
US6944547B2 (en) * 2002-07-26 2005-09-13 Varco I/P, Inc. Automated rig control management system
US8312995B2 (en) * 2002-11-06 2012-11-20 National Oilwell Varco, L.P. Magnetic vibratory screen clamping
US20060113220A1 (en) * 2002-11-06 2006-06-01 Eric Scott Upflow or downflow separator or shaker with piezoelectric or electromagnetic vibrator
US7571817B2 (en) * 2002-11-06 2009-08-11 Varco I/P, Inc. Automatic separator or shaker with electromagnetic vibrator apparatus
US7207396B2 (en) 2002-12-10 2007-04-24 Intelliserv, Inc. Method and apparatus of assessing down-hole drilling conditions
US7026950B2 (en) 2003-03-12 2006-04-11 Varco I/P, Inc. Motor pulse controller
US7100708B2 (en) * 2003-12-23 2006-09-05 Varco I/P, Inc. Autodriller bit protection system and method
US7422076B2 (en) * 2003-12-23 2008-09-09 Varco I/P, Inc. Autoreaming systems and methods
US7946356B2 (en) * 2004-04-15 2011-05-24 National Oilwell Varco L.P. Systems and methods for monitored drilling
US7334651B2 (en) * 2004-07-21 2008-02-26 Schlumberger Technology Corporation Kick warning system using high frequency fluid mode in a borehole
US8344905B2 (en) 2005-03-31 2013-01-01 Intelliserv, Llc Method and conduit for transmitting signals
JP2009503306A (ja) * 2005-08-04 2009-01-29 シュルンベルジェ ホールディングス リミテッド 坑井遠隔計測システム用インターフェイス及びインターフェイス方法
US7519508B2 (en) * 2005-09-13 2009-04-14 Key Energy Services, Inc. Method and system for setting and analyzing tubing target pressures for tongs
US9109439B2 (en) * 2005-09-16 2015-08-18 Intelliserv, Llc Wellbore telemetry system and method
US20070278009A1 (en) * 2006-06-06 2007-12-06 Maximo Hernandez Method and Apparatus for Sensing Downhole Characteristics
US20080083566A1 (en) 2006-10-04 2008-04-10 George Alexander Burnett Reclamation of components of wellbore cuttings material
US8622220B2 (en) 2007-08-31 2014-01-07 Varco I/P Vibratory separators and screens
WO2009075962A2 (en) 2007-12-07 2009-06-18 Exxonmobil Upstream Research Company Methods and systems to estimate wellbore events
US8121788B2 (en) * 2007-12-21 2012-02-21 Schlumberger Technology Corporation Method and system to automatically correct LWD depth measurements
CA2717593C (en) * 2008-03-03 2015-12-08 Intelliserv International Holding, Ltd. Monitoring downhole conditions with drill string distributed measurement system
US8705318B2 (en) 2008-03-10 2014-04-22 Schlumberger Technology Corporation Data aggregation for drilling operations
EP2304172A4 (en) * 2008-07-23 2015-03-11 Schlumberger Technology Bv SYSTEM AND METHOD FOR THE AUTOMATED INVESTIGATION OF THE GROUNDING OF UNDERGROUND RESOURCES
US9073104B2 (en) 2008-08-14 2015-07-07 National Oilwell Varco, L.P. Drill cuttings treatment systems
US7861800B2 (en) * 2008-10-08 2011-01-04 Schlumberger Technology Corp Combining belief networks to generate expected outcomes
US8556083B2 (en) 2008-10-10 2013-10-15 National Oilwell Varco L.P. Shale shakers with selective series/parallel flow path conversion
US9079222B2 (en) * 2008-10-10 2015-07-14 National Oilwell Varco, L.P. Shale shaker
MX2011003997A (es) * 2008-10-14 2011-08-12 Schlumberger Technology Bv Sistema y metodo para automatizacion en linea.
US20100181265A1 (en) * 2009-01-20 2010-07-22 Schulte Jr David L Shale shaker with vertical screens
NO338750B1 (no) 2009-03-02 2016-10-17 Drilltronics Rig Systems As Fremgangsmåte og system for automatisert styring av boreprosess
US8170800B2 (en) 2009-03-16 2012-05-01 Verdande Technology As Method and system for monitoring a drilling operation
US20100252325A1 (en) * 2009-04-02 2010-10-07 National Oilwell Varco Methods for determining mechanical specific energy for wellbore operations
US9528334B2 (en) 2009-07-30 2016-12-27 Halliburton Energy Services, Inc. Well drilling methods with automated response to event detection
US9567843B2 (en) * 2009-07-30 2017-02-14 Halliburton Energy Services, Inc. Well drilling methods with event detection
AU2009350516B2 (en) * 2009-07-30 2014-05-29 Halliburton Energy Services, Inc. Well drilling methods with event detection
US8261855B2 (en) 2009-11-11 2012-09-11 Flanders Electric, Ltd. Methods and systems for drilling boreholes
US8397800B2 (en) 2010-12-17 2013-03-19 Halliburton Energy Services, Inc. Perforating string with longitudinal shock de-coupler
US8393393B2 (en) 2010-12-17 2013-03-12 Halliburton Energy Services, Inc. Coupler compliance tuning for mitigating shock produced by well perforating
US8985200B2 (en) 2010-12-17 2015-03-24 Halliburton Energy Services, Inc. Sensing shock during well perforating
US8397814B2 (en) 2010-12-17 2013-03-19 Halliburton Energy Serivces, Inc. Perforating string with bending shock de-coupler
WO2012148429A1 (en) 2011-04-29 2012-11-01 Halliburton Energy Services, Inc. Shock load mitigation in a downhole perforation tool assembly
US20120241169A1 (en) 2011-03-22 2012-09-27 Halliburton Energy Services, Inc. Well tool assemblies with quick connectors and shock mitigating capabilities
US8893821B2 (en) 2011-04-21 2014-11-25 Baker Hughes Incorporated Apparatus and method for tool face control using pressure data
US9019118B2 (en) * 2011-04-26 2015-04-28 Hydril Usa Manufacturing Llc Automated well control method and apparatus
AU2011372537B2 (en) * 2011-07-05 2015-12-03 Halliburton Energy Services, Inc. Well drilling methods with automated response to event detection
US9091152B2 (en) 2011-08-31 2015-07-28 Halliburton Energy Services, Inc. Perforating gun with internal shock mitigation
US9243489B2 (en) 2011-11-11 2016-01-26 Intelliserv, Llc System and method for steering a relief well
US9593567B2 (en) 2011-12-01 2017-03-14 National Oilwell Varco, L.P. Automated drilling system
US9291019B2 (en) 2011-12-20 2016-03-22 Exxonmobil Upstream Research Company Systems and methods to inhibit packoff formation during drilling assembly removal from a wellbore
US8210283B1 (en) 2011-12-22 2012-07-03 Hunt Energy Enterprises, L.L.C. System and method for surface steerable drilling
US9540920B2 (en) 2012-03-02 2017-01-10 Schlumberger Technology Corporation Dynamic phase machine automation of oil and gas processes
GB201204815D0 (en) * 2012-03-19 2012-05-02 Halliburton Energy Serv Inc Drilling system failure risk analysis method
WO2014003699A2 (en) 2012-04-03 2014-01-03 Halliburton Energy Services, Inc. Shock attenuator for gun system
US9587449B2 (en) * 2012-04-14 2017-03-07 Jonathan V. Huseman Dual rack mast for a well servicing vehicle
WO2013173402A1 (en) * 2012-05-18 2013-11-21 Schlumberger Canada Limited Intervention operations with high rate telemetry
US9157313B2 (en) 2012-06-01 2015-10-13 Intelliserv, Llc Systems and methods for detecting drillstring loads
CA2876895A1 (en) * 2012-06-22 2013-12-27 Schlumberger Canada Limited Detecting a drill string washout event
US9494033B2 (en) 2012-06-22 2016-11-15 Intelliserv, Llc Apparatus and method for kick detection using acoustic sensors
US20140039860A1 (en) * 2012-07-31 2014-02-06 Landmark Graphics Corporation Monitoring and Diagnosing Water Flooded Reservoirs Using Production Data
EP2880260A4 (en) * 2012-08-01 2015-08-12 Services Petroliers Schlumberger ASSESSMENT, MONITORING AND MANAGEMENT OF BOHAKES AND / OR EVALUATION OF GEOLOGICAL PROPERTIES
WO2014046655A1 (en) 2012-09-19 2014-03-27 Halliburton Energy Services, Inc. Perforation gun string energy propagation management with tuned mass damper
WO2014046656A1 (en) 2012-09-19 2014-03-27 Halliburton Energy Services, Inc. Perforation gun string energy propagation management system and methods
US9926777B2 (en) 2012-12-01 2018-03-27 Halliburton Energy Services, Inc. Protection of electronic devices used with perforating guns
SG11201504699UA (en) 2013-02-27 2015-07-30 Landmark Graphics Corp Method and system for predicting drilling events
WO2014138055A2 (en) * 2013-03-04 2014-09-12 Fereidoun Abbassian System and console for monitoring and managing well site operations
US9643111B2 (en) 2013-03-08 2017-05-09 National Oilwell Varco, L.P. Vector maximizing screen
WO2014151643A2 (en) * 2013-03-15 2014-09-25 Fereidoun Abbassian System and console for monitoring and managing well site operations
CN105074128B (zh) * 2013-03-28 2018-12-07 普拉德研究及开发股份有限公司 自动钻机活动报告生成
US10473816B2 (en) * 2013-03-29 2019-11-12 Schlumberger Technology Corporation Calibrations for a well drilling apparatus
US11047221B2 (en) 2013-06-30 2021-06-29 Fereidoun Abbassian System and console for monitoring and managing well site operations
WO2015002905A2 (en) 2013-06-30 2015-01-08 Fereidoun Abbassian System and console for monitoring data stream quality in drilling and production operations at a well site
AU2013399649B2 (en) * 2013-09-03 2017-03-23 Landmark Graphics Corporation Well activity bar charts
US10062044B2 (en) * 2014-04-12 2018-08-28 Schlumberger Technology Corporation Method and system for prioritizing and allocating well operating tasks
US10436014B2 (en) 2014-05-02 2019-10-08 Kongsberg Oil And Gas Technologies As System and console for monitoring and managing pressure testing operations at a well site
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
US10260332B2 (en) 2014-05-02 2019-04-16 Kongsberg Oil And Gas Technologies As System and console for monitoring and managing well site operations
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
WO2016077474A1 (en) * 2014-11-12 2016-05-19 Covar Applied Technologies, Inc. System and method for estimating rig state using computer vision for time and motion studies
WO2016182570A1 (en) * 2015-05-13 2016-11-17 Halliburton Energy Services, Inc. Timeline visualization of events for monitoring well site drilling operations
GB201510957D0 (en) * 2015-06-22 2015-08-05 Ge Aviat Systems Group Ltd Systems and Methods For Verification And Anomaly Detection
WO2017023541A1 (en) 2015-07-31 2017-02-09 Schlumberger Technology Corporation A method and apparatus of determining a state of a system
CA2994479C (en) 2015-09-01 2024-01-02 Pason Systems Corp. Method and system for detecting at least one of an influx event and a loss event during well drilling
EP3504400B1 (en) * 2016-08-23 2020-06-10 BP Corporation North America Inc. System and method for drilling rig state determination
US11933158B2 (en) 2016-09-02 2024-03-19 Motive Drilling Technologies, Inc. System and method for mag ranging drilling control
WO2019033039A1 (en) 2017-08-10 2019-02-14 Motive Drilling Technologies, Inc. APPARATUS AND METHODS FOR AUTOMATIC SLIDE DRILLING
US10830033B2 (en) 2017-08-10 2020-11-10 Motive Drilling Technologies, Inc. Apparatus and methods for uninterrupted drilling
EP3710667B1 (en) 2017-11-15 2023-04-26 Services Pétroliers Schlumberger Field operations system with filter
US11307324B2 (en) 2018-03-21 2022-04-19 Massachusetts Institute Of Technology Systems and methods for detecting seismo-electromagnetic conversion
US10616008B2 (en) 2018-05-09 2020-04-07 Massachusetts Institute Of Technology Systems and methods for focused blind deconvolution
US11215033B2 (en) 2018-05-16 2022-01-04 Saudi Arabian Oil Company Drilling trouble prediction using stand-pipe-pressure real-time estimation
US11131157B2 (en) 2018-06-22 2021-09-28 Nabors Drilling Technologies Usa, Inc. System and method of managed pressure drilling
US10957177B2 (en) * 2018-10-22 2021-03-23 Motive Drilling Technologies, Inc. Systems and methods for oilfield drilling operations using computer vision
US11011043B2 (en) * 2019-03-05 2021-05-18 Chevron U.S.A. Inc. Generating alarms for a drilling tool
US11085293B2 (en) 2019-06-06 2021-08-10 Massachusetts Institute Of Technology Sequential estimation while drilling
US20220268139A1 (en) * 2019-10-29 2022-08-25 Landmark Graphics Corporation Auto-Detection And Classification Of Rig Activities From Trend Analysis Of Sensor Data
US11365341B2 (en) * 2020-05-29 2022-06-21 Halliburton Energy Services, Inc. Methods and compositions for mitigating fluid loss from well ballooning
US11525317B2 (en) 2020-06-25 2022-12-13 Halliburton Energy Services, Inc. Open channel flow from multiple pressure sensors
US11885212B2 (en) 2021-07-16 2024-01-30 Helmerich & Payne Technologies, Llc Apparatus and methods for controlling drilling
CN113900378B (zh) * 2021-10-20 2023-08-25 深圳职业技术学院 一种面向随机非线性系统的非同步滑模控制方法
US11952881B2 (en) * 2021-12-15 2024-04-09 Noralis Limited Method for drilling with projections based on adjusted Kalman Filters

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3605919A (en) * 1969-05-16 1971-09-20 Automatic Drilling Mach Drilling rig control
US4549431A (en) * 1984-01-04 1985-10-29 Mobil Oil Corporation Measuring torque and hook load during drilling
US4553429A (en) * 1984-02-09 1985-11-19 Exxon Production Research Co. Method and apparatus for monitoring fluid flow between a borehole and the surrounding formations in the course of drilling operations
GB8411361D0 (en) * 1984-05-03 1984-06-06 Schlumberger Cambridge Researc Assessment of drilling conditions
US4606415A (en) * 1984-11-19 1986-08-19 Texaco Inc. Method and system for detecting and identifying abnormal drilling conditions
US4793421A (en) * 1986-04-08 1988-12-27 Becor Western Inc. Programmed automatic drill control
US5358058A (en) * 1993-09-27 1994-10-25 Reedrill, Inc. Drill automation control system
US6021377A (en) * 1995-10-23 2000-02-01 Baker Hughes Incorporated Drilling system utilizing downhole dysfunctions for determining corrective actions and simulating drilling conditions
US7032689B2 (en) * 1996-03-25 2006-04-25 Halliburton Energy Services, Inc. Method and system for predicting performance of a drilling system of a given formation
GB9621871D0 (en) * 1996-10-21 1996-12-11 Anadrill Int Sa Alarm system for wellbore site
US6237404B1 (en) 1998-02-27 2001-05-29 Schlumberger Technology Corporation Apparatus and method for determining a drilling mode to optimize formation evaluation measurements
US6346813B1 (en) 1998-08-13 2002-02-12 Schlumberger Technology Corporation Magnetic resonance method for characterizing fluid samples withdrawn from subsurface formations
US6629572B2 (en) 1998-08-17 2003-10-07 Varco I/P, Inc. Operator workstation for use on a drilling rig including integrated control and information
GB2354852B (en) 1999-10-01 2001-11-28 Schlumberger Holdings Method for updating an earth model using measurements gathered during borehole construction
US6438495B1 (en) * 2000-05-26 2002-08-20 Schlumberger Technology Corporation Method for predicting the directional tendency of a drilling assembly in real-time
US20020112888A1 (en) * 2000-12-18 2002-08-22 Christian Leuchtenberg Drilling system and method
US7003439B2 (en) 2001-01-30 2006-02-21 Schlumberger Technology Corporation Interactive method for real-time displaying, querying and forecasting drilling event and hazard information
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
US6820702B2 (en) * 2002-08-27 2004-11-23 Noble Drilling Services Inc. Automated method and system for recognizing well control events

Also Published As

Publication number Publication date
AU2003290308A8 (en) 2004-07-22
CA2509704A1 (en) 2004-07-15
GB2410971B (en) 2006-03-08
GB2410971A (en) 2005-08-17
NO20053195D0 (no) 2005-06-29
CA2509704C (en) 2011-05-24
US20040124009A1 (en) 2004-07-01
NO20053195L (no) 2005-09-23
GB0511496D0 (en) 2005-07-13
EA007847B1 (ru) 2007-02-27
MXPA05007093A (es) 2006-02-10
NO337475B1 (no) 2016-04-18
WO2004059124A1 (en) 2004-07-15
AU2003290308A1 (en) 2004-07-22
US6868920B2 (en) 2005-03-22

Similar Documents

Publication Publication Date Title
EA200501073A1 (ru) Способ и система для предотвращения или смягчения нежелательных событий бурения
EA200501055A1 (ru) Система и способ для детектирования состояния буровой установки
US20040125695A1 (en) Monitoring a microseismic event
NO20051551L (no) Automatisert fremgangsmate og system for a gjenkjenne bronnkontrollhendelser
EA200601067A1 (ru) Способ определения нарушения нормального хода бурения
MXPA05007306A (es) Sistema de alarma de sacudida que usa modo de fluido de frecuencia elevada en un pozo de sondeo.
DE59801016D1 (de) Verfahren und vorrichtung zum erfassen eines anschlags in einem zeitdiskreten audiosignal
IL197456A0 (en) Method and system for determining a threat against a border
ATE360251T1 (de) Verfahren zur einbettung und detektion eines wasserzeichens in einem digitalen audiosignal
ATE404774T1 (de) Verfahren zum fortpflanzen eines abgestützten bruches mit grosser effektiver oberfläche
MXPA02010383A (es) Metodo y aparato para determinar caracteristicas de reservorios.
ATE314607T1 (de) Verfahren und vorrichtung zum überwachen eines schutzbereichs
DE60309878D1 (de) Leistungsmessung empfangener cdma-signale unter verwendung von vorverarbeitung mit weichem schwellwert nach korrelation
EP0741230A3 (en) Method of detecting the location of well treating fluid
DE602005017520D1 (de) Detektionsverfahren für ack/nack-signale und detektor dafür
NO20055042D0 (no) System og fremgangsmate for avfallshandtering
ATE444792T1 (de) Kontinuierlich regenerierter integrierter suppressor sowie detektor und verfahren zur suppressor-ionenchromatographie
FI990078A0 (fi) Menetelmä puheen tunnistuksessa ja puheentunnistuslaite
EA200400556A1 (ru) Способ контроля траектории бурения
ATE378500T1 (de) Vorrichtung zur filtrierung von bohrschlamm
ATE528925T1 (de) Vorrichtung und verfahren zur zurückgewinnung von kompressionskonstanten im kodierten bereich
DE60308716D1 (de) Verfahren zur isoelektrischen auftrennung mittels ph-wert-voreinstellung
DE60308386D1 (de) Verfahren und vorrichtung zum detektionieren eines störsignales in einem dsss system mittels phasenwechselszählung
US20060167948A1 (en) Detection of computer system malware
WO2004001352A3 (en) Apparatus and method of monitoring and signaling for downhole tools

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM BY KG MD TJ TM

QB4A Registration of a licence in a contracting state
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AZ KZ RU