DE69424241T2 - Vorrichtung und Verfahren zur Dimensionsmessung in einem Bohrloch - Google Patents

Vorrichtung und Verfahren zur Dimensionsmessung in einem Bohrloch

Info

Publication number
DE69424241T2
DE69424241T2 DE69424241T DE69424241T DE69424241T2 DE 69424241 T2 DE69424241 T2 DE 69424241T2 DE 69424241 T DE69424241 T DE 69424241T DE 69424241 T DE69424241 T DE 69424241T DE 69424241 T2 DE69424241 T2 DE 69424241T2
Authority
DE
Germany
Prior art keywords
borehole
dimension measurement
dimension
measurement
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
Application number
DE69424241T
Other languages
English (en)
Other versions
DE69424241D1 (de
Inventor
Gordon Moake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Application granted granted Critical
Publication of DE69424241D1 publication Critical patent/DE69424241D1/de
Publication of DE69424241T2 publication Critical patent/DE69424241T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/08—Measuring diameters or related dimensions at the borehole
    • E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
DE69424241T 1993-09-30 1994-09-30 Vorrichtung und Verfahren zur Dimensionsmessung in einem Bohrloch Expired - Lifetime DE69424241T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13009193A 1993-09-30 1993-09-30

Publications (2)

Publication Number Publication Date
DE69424241D1 DE69424241D1 (de) 2000-06-08
DE69424241T2 true DE69424241T2 (de) 2000-09-07

Family

ID=22443016

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424241T Expired - Lifetime DE69424241T2 (de) 1993-09-30 1994-09-30 Vorrichtung und Verfahren zur Dimensionsmessung in einem Bohrloch

Country Status (5)

Country Link
US (1) US5469736A (de)
EP (1) EP0646697B1 (de)
CA (1) CA2133286C (de)
DE (1) DE69424241T2 (de)
NO (1) NO313925B1 (de)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5864058A (en) * 1994-09-23 1999-01-26 Baroid Technology, Inc. Detecting and reducing bit whirl
GB9518990D0 (en) * 1995-09-16 1995-11-15 Baroid Technology Inc Borehole surveying
US5753812A (en) * 1995-12-07 1998-05-19 Schlumberger Technology Corporation Transducer for sonic logging-while-drilling
US5987385A (en) * 1997-08-29 1999-11-16 Dresser Industries, Inc. Method and apparatus for creating an image of an earth borehole or a well casing
US6205851B1 (en) * 1998-05-05 2001-03-27 Baker Hughes Incorporated Method for determining drill collar whirl in a bottom hole assembly and method for determining borehole size
US6065219A (en) * 1998-06-26 2000-05-23 Dresser Industries, Inc. Method and apparatus for determining the shape of an earth borehole and the motion of a tool within the borehole
US6038513A (en) * 1998-06-26 2000-03-14 Dresser Industries, Inc. Method and apparatus for quick determination of the ellipticity of an earth borehole
US6050141A (en) * 1998-08-28 2000-04-18 Computalog Research, Inc. Method and apparatus for acoustic logging of fluid density and wet cement plugs in boreholes
US6384605B1 (en) 1999-09-10 2002-05-07 Schlumberger Technology Corporation Method and apparatus for measurement of borehole size and the resistivity of surrounding earth formations
US6671623B1 (en) 1999-10-15 2003-12-30 Schlumberger Technology Corporation Methods and system for characterizing the response of subsurface measurements to determine wellbore and formation characteristics
US6349778B1 (en) * 2000-01-04 2002-02-26 Performance Boring Technologies, Inc. Integrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole
FR2805893B1 (fr) * 2000-03-02 2002-05-03 Snecma Procede de mesure d'adherence d'un revetement sur un substrat
US6648083B2 (en) 2000-11-02 2003-11-18 Schlumberger Technology Corporation Method and apparatus for measuring mud and formation properties downhole
US6584407B2 (en) * 2001-01-10 2003-06-24 Halliburton Energy Services, Inc. Formation resistivity measurement method that eliminates effects of lateral tool motion
US6854192B2 (en) * 2001-02-06 2005-02-15 Smart Stabilizer Systems Limited Surveying of boreholes
GB0102900D0 (en) * 2001-02-06 2001-03-21 Smart Stabiliser Systems Ltd Surveying of boreholes
GB0104838D0 (en) * 2001-02-27 2001-04-18 Pathfinder Energy Services Ltd Pathfinder
US6618322B1 (en) * 2001-08-08 2003-09-09 Baker Hughes Incorporated Method and apparatus for measuring acoustic mud velocity and acoustic caliper
US6768106B2 (en) 2001-09-21 2004-07-27 Schlumberger Technology Corporation Method of kick detection and cuttings bed buildup detection using a drilling tool
US6725162B2 (en) * 2001-12-13 2004-04-20 Schlumberger Technology Corporation Method for determining wellbore diameter by processing multiple sensor measurements
US6891777B2 (en) * 2002-06-19 2005-05-10 Schlumberger Technology Corporation Subsurface borehole evaluation and downhole tool position determination methods
GB0221753D0 (en) * 2002-09-19 2002-10-30 Smart Stabilizer Systems Ltd Borehole surveying
US6894274B2 (en) * 2002-12-11 2005-05-17 Pathfinder Energy Services, Inc. Estimation of formation porosity using water measurement
EP1435430B1 (de) * 2002-12-31 2007-03-28 Services Petroliers Schlumberger Messung der Strömungsgeschwindigkeit von Spülung mittels gepulster Neutronen
US7036363B2 (en) * 2003-07-03 2006-05-02 Pathfinder Energy Services, Inc. Acoustic sensor for downhole measurement tool
US6995500B2 (en) * 2003-07-03 2006-02-07 Pathfinder Energy Services, Inc. Composite backing layer for a downhole acoustic sensor
US7513147B2 (en) 2003-07-03 2009-04-07 Pathfinder Energy Services, Inc. Piezocomposite transducer for a downhole measurement tool
US7075215B2 (en) * 2003-07-03 2006-07-11 Pathfinder Energy Services, Inc. Matching layer assembly for a downhole acoustic sensor
US7460435B2 (en) * 2004-01-08 2008-12-02 Schlumberger Technology Corporation Acoustic transducers for tubulars
US7364007B2 (en) * 2004-01-08 2008-04-29 Schlumberger Technology Corporation Integrated acoustic transducer assembly
US7367392B2 (en) * 2004-01-08 2008-05-06 Schlumberger Technology Corporation Wellbore apparatus with sliding shields
US20050259512A1 (en) * 2004-05-24 2005-11-24 Halliburton Energy Services, Inc. Acoustic caliper with transducer array for improved off-center performance
US7260477B2 (en) * 2004-06-18 2007-08-21 Pathfinder Energy Services, Inc. Estimation of borehole geometry parameters and lateral tool displacements
US20050284531A1 (en) * 2004-06-24 2005-12-29 Threadgill Travis J Drill pipe assembly
US20060067162A1 (en) * 2004-09-29 2006-03-30 Blankinship Thomas J Ultrasonic cement scanner
US7103982B2 (en) * 2004-11-09 2006-09-12 Pathfinder Energy Services, Inc. Determination of borehole azimuth and the azimuthal dependence of borehole parameters
US7669668B2 (en) * 2004-12-01 2010-03-02 Schlumberger Technology Corporation System, apparatus, and method of conducting measurements of a borehole
WO2006083738A1 (en) * 2005-01-31 2006-08-10 Baker Hughes Incorporated Apparatus and method for mechanical caliper measurements during drilling and logging-while-drilling operations
US8344905B2 (en) 2005-03-31 2013-01-01 Intelliserv, Llc Method and conduit for transmitting signals
US20080047337A1 (en) * 2006-08-23 2008-02-28 Baker Hughes Incorporated Early Kick Detection in an Oil and Gas Well
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
US9109439B2 (en) * 2005-09-16 2015-08-18 Intelliserv, Llc Wellbore telemetry system and method
US7913757B2 (en) * 2005-09-16 2011-03-29 Halliburton Energy Services. Inc. Methods of formulating a cement composition
US20070278009A1 (en) * 2006-06-06 2007-12-06 Maximo Hernandez Method and Apparatus for Sensing Downhole Characteristics
NO325521B1 (no) * 2006-11-23 2008-06-02 Statoil Asa Sammenstilling for trykkontroll ved boring og fremgangsmate for trykkontroll ved boring i en formasjon med uforutsett hoyt formasjonstrykk
US7900717B2 (en) * 2006-12-04 2011-03-08 Baker Hughes Incorporated Expandable reamers for earth boring applications
US8657039B2 (en) 2006-12-04 2014-02-25 Baker Hughes Incorporated Restriction element trap for use with an actuation element of a downhole apparatus and method of use
US8194497B2 (en) * 2007-01-16 2012-06-05 Precision Energy Services, Inc. Reduction of tool eccentricity effects on acoustic measurements
US7587936B2 (en) 2007-02-01 2009-09-15 Smith International Inc. Apparatus and method for determining drilling fluid acoustic properties
US9158031B2 (en) 2007-04-10 2015-10-13 Halliburton Energy Services, Inc. Interchangeable measurement housings
US8307703B2 (en) * 2007-04-10 2012-11-13 Halliburton Energy Services, Inc. Interchangeable measurement housings
WO2008127237A1 (en) 2007-04-12 2008-10-23 Halliburton Energy Services, Inc. Borehole characterization
CA2662543C (en) * 2007-08-14 2012-08-28 Halliburton Energy Services, Inc. Determining formation characteristics
WO2009111412A2 (en) * 2008-03-03 2009-09-11 Intelliserv, Inc. Monitoring downhole conditions with drill string distributed measurement system
US8378842B2 (en) * 2008-06-19 2013-02-19 Schlumberger Technology Corporation Downhole component with an electrical device in a blind-hole
GB2465505C (en) * 2008-06-27 2020-10-14 Rasheed Wajid Electronically activated underreamer and calliper tool
WO2010019070A1 (en) * 2008-08-14 2010-02-18 Schlumberger Canada Limited Method and a system for monitoring a logging tool position in a borehole
BRPI0918479A2 (pt) * 2008-09-15 2016-02-16 Bp Corp North America Inc métodos de uso de medições distribuídas para determinar o tamanho de poço não revestido, de detecção de poço não revestido fora de calibre e de rastreamento de tampão químico pelo uso de medições distribuídas e sistema de computador
US8462584B2 (en) * 2008-09-15 2013-06-11 Schlumberger Technology Corporation Sonic borehole caliper and related methods
US8117907B2 (en) 2008-12-19 2012-02-21 Pathfinder Energy Services, Inc. Caliper logging using circumferentially spaced and/or angled transducer elements
US8570832B2 (en) * 2008-12-31 2013-10-29 Schlumberger Technology Corporation Variable throat venturi flow meter having a plurality of section-varying elements
US20100212892A1 (en) * 2009-02-26 2010-08-26 Halliburton Energy Services, Inc. Methods of formulating a cement composition
US20100224414A1 (en) * 2009-03-03 2010-09-09 Baker Hughes Incorporated Chip deflector on a blade of a downhole reamer and methods therefore
US7950451B2 (en) * 2009-04-10 2011-05-31 Bp Corporation North America Inc. Annulus mud flow rate measurement while drilling and use thereof to detect well dysfunction
US8634272B2 (en) 2009-04-21 2014-01-21 Baker Hughes Incorporated Televiewer image wood-grain reduction techniques
US8297381B2 (en) * 2009-07-13 2012-10-30 Baker Hughes Incorporated Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods
US8750075B2 (en) 2009-12-22 2014-06-10 Schlumberger Technology Corporation Acoustic transceiver with adjacent mass guided by membranes
US9062535B2 (en) 2009-12-28 2015-06-23 Schlumberger Technology Corporation Wireless network discovery algorithm and system
US9062531B2 (en) * 2010-03-16 2015-06-23 Tool Joint Products, Llc System and method for measuring borehole conditions, in particular, verification of a final borehole diameter
US9086348B2 (en) * 2010-04-06 2015-07-21 Varel Europe S.A.S. Downhole acoustic emission formation sampling
US9297731B2 (en) 2010-04-06 2016-03-29 Varel Europe S.A.S Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard material inserts
US9963964B2 (en) 2011-03-14 2018-05-08 Tool Joint Products Llc Downhole sensor tool for measuring borehole conditions with fit-for-purpose sensor housings
US9686021B2 (en) 2011-03-30 2017-06-20 Schlumberger Technology Corporation Wireless network discovery and path optimization algorithm and system
US9243489B2 (en) 2011-11-11 2016-01-26 Intelliserv, Llc System and method for steering a relief well
US9562428B2 (en) * 2012-02-16 2017-02-07 Baker Hughes Incorporated System and method to estimate a property in a borehole
US9410377B2 (en) 2012-03-16 2016-08-09 Baker Hughes Incorporated Apparatus and methods for determining whirl of a rotating tool
US9249059B2 (en) 2012-04-05 2016-02-02 Varel International Ind., L.P. High temperature high heating rate treatment of PDC cutters
US9157313B2 (en) 2012-06-01 2015-10-13 Intelliserv, Llc Systems and methods for detecting drillstring loads
US9494033B2 (en) 2012-06-22 2016-11-15 Intelliserv, Llc Apparatus and method for kick detection using acoustic sensors
US9217323B2 (en) * 2012-09-24 2015-12-22 Schlumberger Technology Corporation Mechanical caliper system for a logging while drilling (LWD) borehole caliper
CN103225501A (zh) * 2012-10-30 2013-07-31 中国石油大学(北京) 一种利用声波测井资料定量评价随钻仪器偏心程度的方法
US9260958B2 (en) * 2012-12-20 2016-02-16 Schlumberger Technology Corporation System and method for acoustic imaging using a transducer array
EP2749731A1 (de) * 2012-12-28 2014-07-02 Services Pétroliers Schlumberger Integriertes Kalibermessgerät im Bohrloch
CN105074127B (zh) * 2013-03-08 2019-03-26 哈里伯顿能源服务公司 用于从声波波形中移除衰荡效应的方法、系统以及计算机可读介质
EP2876256A1 (de) 2013-11-26 2015-05-27 Services Pétroliers Schlumberger Übertragungswegverifikation für Bohrlochnetzwerke
WO2015094204A1 (en) * 2013-12-18 2015-06-25 Halliburton Energy Services Inc. Sensor activated downhole tool location
EP3035083B1 (de) * 2014-12-17 2021-09-29 Services Pétroliers Schlumberger System und Verfahren zur Rauschunterdrückung in akustischen Impedanzprotokollen
US10273797B2 (en) * 2015-05-22 2019-04-30 Halliburton Energy Services, Inc. Casing and cement evaluation tool with reduced transmitter ringing
BR112017020990A2 (pt) * 2015-05-22 2018-07-10 Halliburton Energy Services Inc ferramenta de avaliação de revestimento e cimento, e, método de medição de velocidade e atenuação de fluido de poço inacabado in-situ numa ferramenta de varredura ultrassônica
EP3109399B1 (de) * 2015-06-23 2017-08-09 BAUER Spezialtiefbau GmbH Messvorrichtung und verfahren zur vermessung eines loches im boden
EP3341563B1 (de) * 2015-10-02 2023-03-08 Halliburton Energy Services, Inc. Ultraschallwandler mit verbessertem stützungselement
WO2017127041A1 (en) * 2016-01-20 2017-07-27 Halliburton Energy Services, Inc. Systems and methods for correcting off-center acoustic sondes
CN106522929B (zh) * 2016-12-07 2020-01-07 中国石油天然气集团公司 一种超声井径随钻测井装置
US20190187316A1 (en) * 2017-12-15 2019-06-20 Baker Hughes, A Ge Company, Llc Systems and methods for downhole determination of drilling characteristics
CN108548509B (zh) * 2018-04-18 2023-07-25 洛阳理工学院 一种深孔质量检测装置
US10838097B2 (en) * 2018-05-04 2020-11-17 Schlumberger Technology Corporation Borehole size determination downhole
US11519255B2 (en) * 2018-10-16 2022-12-06 Halliburton Energy Services, Inc. Downhole tool dynamic and motion measurement with multiple ultrasound transducer
US11733419B2 (en) 2018-12-27 2023-08-22 Halliburton Energy Services, Inc. Removal of signal ringdown noise
US11674377B2 (en) * 2020-04-21 2023-06-13 Baker Hughes Oilfield Operations Llc Contact or proximity pad mounted sensor system for imaging cavity defects and delamination defects between layers in multilayered cylindrical structures in subsurface wells
US11873708B2 (en) * 2021-02-05 2024-01-16 Halliburton Energy Services, Inc. Optimizing borehole ultrasonic cement evaluation using adaptive beam-forming with array transducer
US20230203933A1 (en) * 2021-12-29 2023-06-29 Halliburton Energy Services, Inc. Real time drilling model updates and parameter recommendations with caliper measurements

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2770795A (en) * 1951-03-30 1956-11-13 Raytheon Mfg Co Acoustic log
US3590940A (en) * 1969-05-26 1971-07-06 Schlumberger Technology Corp Well-logging apparatus
US3663842A (en) * 1970-09-14 1972-05-16 North American Rockwell Elastomeric graded acoustic impedance coupling device
US3673864A (en) * 1970-12-14 1972-07-04 Schlumberger Technology Corp Methods and apparatus for detecting the entry of formation gases into a well bore
US3776032A (en) * 1972-07-03 1973-12-04 Shell Oil Co Method and apparatus for detecting an inflow of fluid into a well
US3958559A (en) * 1974-10-16 1976-05-25 New York Institute Of Technology Ultrasonic transducer
US4255798A (en) * 1978-05-30 1981-03-10 Schlumberger Technology Corp. Method and apparatus for acoustically investigating a casing and cement bond in a borehole
US4273212A (en) * 1979-01-26 1981-06-16 Westinghouse Electric Corp. Oil and gas well kick detector
FR2457490A1 (fr) * 1979-05-23 1980-12-19 Elf Aquitaine Procede et dispositif de detection in situ d'un fluide de gisement dans un trou de forage
US4353122A (en) * 1980-05-19 1982-10-05 Schlumberger Technology Corporation Differential noise logging method and apparatus
US4524433A (en) * 1981-03-10 1985-06-18 Standard Oil Company (Indiana) High speed sonic logging using multiple transducers
US4885723A (en) * 1981-12-18 1989-12-05 Schlumberger Technology Corporation Acoustic apparatus and method for detecting borehole wall discontinuities such as vertical fractures
FR2518638A1 (fr) * 1981-12-22 1983-06-24 Schlumberger Prospection Procede et dispositif acoustiques pour la mesure de dimensions transversales d'un trou, notamment dans un puits
US4692908A (en) * 1982-03-24 1987-09-08 Schlumberger-Doll Research Method and apparatus for investigating stand-off in a borehole
US4527425A (en) * 1982-12-10 1985-07-09 Nl Industries, Inc. System for detecting blow out and lost circulation in a borehole
US4571693A (en) * 1983-03-09 1986-02-18 Nl Industries, Inc. Acoustic device for measuring fluid properties
FI71018C (fi) * 1983-07-06 1986-10-27 Valmet Oy Foerfarande baserande sig pao ekolodning med ultraljud foer at foelja med banbildningen och/eller massasuspensionsstroe mmn pao en viradel och/eller i en inloppslaoda i en pappers makin och anordning foer tillaempning av foerfarandet samt vanendning av foerfarandet och/eller anordningen
US4665511A (en) * 1984-03-30 1987-05-12 Nl Industries, Inc. System for acoustic caliper measurements
US4544859A (en) * 1984-07-06 1985-10-01 The United States Of America As Represented By The United States Department Of Energy Non-bonded piezoelectric ultrasonic transducer
US4628725A (en) * 1985-03-29 1986-12-16 Schlumberger Technology Corporation Apparatus and method for analyzing a fluid that includes a liquid phase, contained in a tubular conduit
US4791797A (en) * 1986-03-24 1988-12-20 Nl Industries, Inc. Density neutron self-consistent caliper
EP0239999B1 (de) * 1986-04-02 1993-10-13 Matsushita Electric Industrial Co., Ltd. Ultraschallwandler mit einem Ultraschallfortpflanzungsmedium
US4867264A (en) * 1986-09-17 1989-09-19 Atlantic Richfield Company Apparatus and method for investigating wellbores and the like
US4805156A (en) * 1986-09-22 1989-02-14 Western Atlas International, Inc. System for acoustically determining the quality of the cement bond in a cased borehole
US4797668A (en) * 1986-12-12 1989-01-10 Halliburton Company Acoustic well logging system having multiplexed filter digitizing
US4780858A (en) * 1986-12-29 1988-10-25 Shell Oil Company Borehole televiewer mudcake monitor
US4879463A (en) * 1987-12-14 1989-11-07 Schlumberger Technology Corporation Method and apparatus for subsurface formation evaluation
GB2228326B (en) * 1988-12-03 1993-02-24 Anadrill Int Sa Method for determining the instantaneous rotation speed of a drill string
US4947683A (en) * 1989-08-03 1990-08-14 Halliburton Logging Services, Inc. Pulsed ultrasonic doppler borehole fluid measuring apparatus
US4958517A (en) * 1989-08-07 1990-09-25 Teleco Oilfield Services Inc. Apparatus for measuring weight, torque and side force on a drill bit
US5214251A (en) * 1990-05-16 1993-05-25 Schlumberger Technology Corporation Ultrasonic measurement apparatus and method
US5130950A (en) * 1990-05-16 1992-07-14 Schlumberger Technology Corporation Ultrasonic measurement apparatus
US5159577A (en) * 1990-10-09 1992-10-27 Baroid Technology, Inc. Technique for reducing whirling of a drill string
US5091644A (en) * 1991-01-15 1992-02-25 Teleco Oilfield Services Inc. Method for analyzing formation data from a formation evaluation MWD logging tool
GB2254921A (en) * 1991-04-11 1992-10-21 Teleco Oilfield Services Inc Mwd acoustic borehole caliper
US5175429A (en) * 1991-08-30 1992-12-29 Baker Hughes Incorporated Stand-off compensation for nuclear MWD measurement
US5313829A (en) * 1992-01-03 1994-05-24 Atlantic Richfield Company Method of determining drillstring bottom hole assembly vibrations

Also Published As

Publication number Publication date
CA2133286C (en) 2005-08-09
DE69424241D1 (de) 2000-06-08
US5469736A (en) 1995-11-28
EP0646697B1 (de) 2000-05-03
NO943640L (no) 1995-03-31
EP0646697A1 (de) 1995-04-05
NO313925B1 (no) 2002-12-23
CA2133286A1 (en) 1995-03-31
NO943640D0 (no) 1994-09-30

Similar Documents

Publication Publication Date Title
DE69424241D1 (de) Vorrichtung und Verfahren zur Dimensionsmessung in einem Bohrloch
DE59610354D1 (de) Verfahren und vorrichtung zur winkelmessung bei einem drehbaren körper
DE69414784D1 (de) Vorrichtung und Verfahren zur Formmodellierung
DE69412393D1 (de) Vorrichtung und verfahren zur extraktion mit einem überkritischen fluidum
DE69521451T2 (de) Verfahren und Vorrichtung zum Messen von einem Gaskomponenten
DE68925547D1 (de) Vorrichtung und Verfahren zur Zeichenbegrenzungsermittlung in einem seriellen codierten Datenstrom
DE69330732T2 (de) Vorrichtung und Verfahren zur Messung der Absorption in einem dispergierenden Medium
DE69810592D1 (de) Verfahren und vorrichtung zur zeitmessung in einem satellitenpositionierungssystem
DE69433171D1 (de) Verfahren und Vorrichtung zur Ausrichtung in einem drahtlosen Übertragungssystem
DE69623248T2 (de) Verfahren und Vorrichtung zur Entfernungsmessung
DE69524347D1 (de) Vorrichtung und Verfahren zum Wegmessung
DE69822352D1 (de) Verfahren und Vorrichtung zur Datenerfassung in einem Bohrloch
DE69403205D1 (de) Verfahren und vorrichtung zur feststellung von teilchen in einer strömung
DE59302962D1 (de) Verfahren und Vorrichtung zur Abstandsmessung
DE69423306T2 (de) Vorrichtung und Verfahren zur Auswahl eines Schriftensatzes
DE69421985T2 (de) Verfahren und Vorrichtung zum doppeltem Sichern eines Anschlusses in einem Verbinder
DE69510497D1 (de) Vorrichtung und Verfahren zur Halterung eines Computerbauelementes
DE4497995T1 (de) Vorrichtung und Verfahren zur Frequenzmessung
DE69406886D1 (de) Verfahren und Vorrichtung zur geometrischen Kontrolle eines Fahrzeugs
DE59609675D1 (de) Verfahren und Vorrichtung zur Abstandsmessung
DE69216546T2 (de) Verfahren und vorrichtung zur positionsdetektierung in einem lasersensor
ATA76093A (de) Verfahren und vorrichtung zur ermittlung der korrosivität
DE69324554D1 (de) Verfahren und Vorrichtung zur Synchronisationsdetektierung in einem Viterbi-Dekoder
DE69618801T2 (de) Vorrichtung und verfahren zur bestimmung der partikelgrösse bei geringer konzentration
DE69412594T2 (de) Verfahren und vorrichtung zum messen von längen und winkeln

Legal Events

Date Code Title Description
8364 No opposition during term of opposition