ATE204949T1 - Gerät zur bestimmung der krümmung eines langgestreckten loches, insbesondere eines bohrloches, beispielsweise in gestein - Google Patents

Gerät zur bestimmung der krümmung eines langgestreckten loches, insbesondere eines bohrloches, beispielsweise in gestein

Info

Publication number
ATE204949T1
ATE204949T1 AT96903282T AT96903282T ATE204949T1 AT E204949 T1 ATE204949 T1 AT E204949T1 AT 96903282 T AT96903282 T AT 96903282T AT 96903282 T AT96903282 T AT 96903282T AT E204949 T1 ATE204949 T1 AT E204949T1
Authority
AT
Austria
Prior art keywords
probe
channel
curvature
fibre section
pct
Prior art date
Application number
AT96903282T
Other languages
English (en)
Inventor
Bengt Sahlgren
Raoul Stubbe
Claes Ericsson
Original Assignee
Reflex Instr Ab
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 Reflex Instr Ab filed Critical Reflex Instr Ab
Application granted granted Critical
Publication of ATE204949T1 publication Critical patent/ATE204949T1/de

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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Earth Drilling (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
AT96903282T 1995-02-13 1996-02-09 Gerät zur bestimmung der krümmung eines langgestreckten loches, insbesondere eines bohrloches, beispielsweise in gestein ATE204949T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9500512A SE503629C2 (sv) 1995-02-13 1995-02-13 Apparat för bestämning av krökningen för en långsträckt kanal såsom ett borrhål i berg
PCT/SE1996/000084 WO1996025584A1 (en) 1995-02-13 1996-02-09 Apparatus for determining the curvature of an elongated hole, such as a drill hole, in rock for instance

Publications (1)

Publication Number Publication Date
ATE204949T1 true ATE204949T1 (de) 2001-09-15

Family

ID=20397188

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96903282T ATE204949T1 (de) 1995-02-13 1996-02-09 Gerät zur bestimmung der krümmung eines langgestreckten loches, insbesondere eines bohrloches, beispielsweise in gestein

Country Status (10)

Country Link
US (1) US5946094A (de)
EP (1) EP0808410B1 (de)
JP (1) JP3466623B2 (de)
AT (1) ATE204949T1 (de)
AU (1) AU690817B2 (de)
CA (1) CA2212749A1 (de)
DE (1) DE69614827T2 (de)
PT (1) PT808410E (de)
SE (1) SE503629C2 (de)
WO (1) WO1996025584A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6556288B1 (en) * 1999-12-21 2003-04-29 Lockheed Martin Corporation Distributed displacement sensor
KR20030093288A (ko) * 2001-03-27 2003-12-06 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 스페클 이미지 처리를 사용하여 환경 섭동을 감지하고위치를 파악하는 멀티 광섬유 광학 2차원-어레이 소자
US7425307B2 (en) * 2002-09-23 2008-09-16 Columbia Technologies, Llc Enhanced subsurface scanning system, method and computer program product
JP2005172536A (ja) * 2003-12-10 2005-06-30 Taisei Kiso Sekkei Kk 折れ角測定装置
US7222534B2 (en) * 2005-03-31 2007-05-29 Pgs Americas, Inc. Optical accelerometer, optical inclinometer and seismic sensor system using such accelerometer and inclinometer
GB0620944D0 (en) * 2006-10-20 2006-11-29 Insensys Ltd Curvature measurement moving relative to pipe
JP5385516B2 (ja) * 2007-07-10 2014-01-08 エヌ・ティ・ティ・インフラネット株式会社 変形量センサ、変形量測定装置、変形量測定方法
US8065085B2 (en) 2007-10-02 2011-11-22 Gyrodata, Incorporated System and method for measuring depth and velocity of instrumentation within a wellbore using a bendable tool
US8095317B2 (en) 2008-10-22 2012-01-10 Gyrodata, Incorporated Downhole surveying utilizing multiple measurements
US8185312B2 (en) * 2008-10-22 2012-05-22 Gyrodata, Incorporated Downhole surveying utilizing multiple measurements
US8065087B2 (en) * 2009-01-30 2011-11-22 Gyrodata, Incorporated Reducing error contributions to gyroscopic measurements from a wellbore survey system
US20100200743A1 (en) * 2009-02-09 2010-08-12 Larry Dale Forster Well collision avoidance using distributed acoustic sensing
US10143523B2 (en) * 2015-03-31 2018-12-04 7D Surgical Inc. Systems, methods and devices for tracking and calibration of flexible instruments
DK3483579T3 (da) * 2017-11-08 2022-10-17 Nkt Hv Cables Ab Metode og system til træthedsovervågning af et undersøisk kabel i offshore operationer
CN111594142B (zh) * 2020-05-24 2023-03-28 中煤科工集团重庆研究院有限公司 煤矿井下随钻钻孔轨迹测量系统及方法
CN114353686B (zh) * 2021-09-10 2023-10-20 重庆交通大学 隧道衬砌的曲率分布智能获取方法及相关装置
CN114279365B (zh) * 2021-12-21 2024-02-02 浙江贝盛光伏股份有限公司 一种光伏组件弯曲测量系统及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US436419A (en) * 1890-09-16 Centrifugal separator
SE387698B (sv) * 1973-03-23 1976-09-13 Haglund Mats T Apparat for bestemning av ett langt borrhals krokning
SE373635B (sv) * 1973-06-01 1975-02-10 J A L Karlsson Anordning for metning av rakheten hos en langstreckt borrning
CA1124384A (en) * 1979-08-09 1982-05-25 Paolo G. Cielo Stable fiber-optic hydrophone
DE2936682A1 (de) * 1979-09-11 1981-09-10 Siemens AG, 1000 Berlin und 8000 München Eingangsstufe fuer eine monolitisch integrierte ladungsverschiebeanordnung
US4927232A (en) * 1985-03-18 1990-05-22 G2 Systems Corporation Structural monitoring system using fiber optics
US4436419A (en) * 1982-02-16 1984-03-13 United Technologies Corporation Optical strain gauge
US4806012A (en) * 1984-08-13 1989-02-21 United Technologies Corporation Distributed, spatially resolving optical fiber strain gauge
US4722603A (en) * 1986-06-27 1988-02-02 Chevron Research Company Interferometric means and method for accurate determination of fiber-optic well logging cable length
US5301001A (en) * 1992-02-12 1994-04-05 Center For Innovative Technology Extrinsic fiber optic displacement sensors and displacement sensing systems
US5528367A (en) * 1994-09-09 1996-06-18 The United States Of America As Represented By The Secretary Of The Navy In-line fiber etalon strain sensor

Also Published As

Publication number Publication date
DE69614827D1 (de) 2001-10-04
SE9500512L (sv) 1996-07-22
EP0808410A1 (de) 1997-11-26
JPH11500195A (ja) 1999-01-06
AU690817B2 (en) 1998-04-30
AU4734196A (en) 1996-09-04
CA2212749A1 (en) 1996-08-22
SE503629C2 (sv) 1996-07-22
WO1996025584A1 (en) 1996-08-22
SE9500512D0 (sv) 1995-02-13
US5946094A (en) 1999-08-31
DE69614827T2 (de) 2002-04-11
EP0808410B1 (de) 2001-08-29
PT808410E (pt) 2002-02-28
JP3466623B2 (ja) 2003-11-17

Similar Documents

Publication Publication Date Title
ATE204949T1 (de) Gerät zur bestimmung der krümmung eines langgestreckten loches, insbesondere eines bohrloches, beispielsweise in gestein
Lee et al. Monitoring of fatigue damage of composite structures by using embedded intensity-based optical fiber sensors
US7664347B2 (en) Multi-core optical fiber sensor
US5723857A (en) Method and apparatus for detecting cracks and strains on structures using optical fibers and Bragg gratings
US5321257A (en) Fiber optic bending and positioning sensor including a light emission surface formed on a portion of a light guide
Han et al. Distributed acoustic sensing with sensitivity-enhanced optical cable
DE69406447D1 (de) Faseroptischer biege- und positionierungssensor
Askins et al. Bend and twist sensing in a multiple-core optical fiber
BRPI0406775A (pt) Método para medição de pelo menos um pa âmetro selecionado em uma localização dentro de uma região de interesse, método e aparelho de medição de um parâmetro fìsico selecionado, aparelho para medição de um parâmetro fìsico selecionado em uma localização dentro de uma região de interesse, e método para medição de um parâmetro em um dispositivo inteferométrico de fibra ótica
DE68920138D1 (de) Sensor für den brechungsindex aus optischen fasern unter verwendung einer metallbeschichtung.
EP0900396A1 (de) Optischer fibersensor mit deformierbarem freien ende
CN108760109A (zh) 基于布拉格光纤光栅的可变量程的土体压力测量装置和方法
WO2006118911A3 (en) Method of estimating and measuring longitudinal dispersion in optical fibers
SE9503873D0 (sv) Anordning för att avkänna elastisk deformation hos ett verktygskraft i en verktygsmaskin
US4950886A (en) Partially reflecting optical fiber splice for temperature and strain measurement
Zheng et al. Strain transfer mechanism in surface-bonded distributed fiber-optic sensors subjected to linear strain gradients: Theoretical modeling and experimental validation
Bogachkov et al. Joint testing of optical pulse reflectometers of various types for early diagnostics and detection of “problem” sections in optical fibers
Kania et al. Application of distributed fibre optic cables in piles
JP2002162211A (ja) 歪み計測装置及びその設置方法
US4891511A (en) Fiber optic microbend sensor with braided fibers
US5661246A (en) Fiber optic displacement sensor for high temperature environment
JP2000039309A (ja) 変形検査方法及び装置
Tenerz et al. A fiberoptic silicon pressure microsensor for measurements in coronary arteries
DE59911010D1 (de) Lichtwellenleiter-wassersensor
Li et al. FBG-based positioning method for BOTDA sensing

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties