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WO2010059065A1 - Procédé pour la mesure de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne d'un pipeline - Google Patents

Procédé pour la mesure de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne d'un pipeline Download PDF

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Publication number
WO2010059065A1
WO2010059065A1 PCT/NO2009/000401 NO2009000401W WO2010059065A1 WO 2010059065 A1 WO2010059065 A1 WO 2010059065A1 NO 2009000401 W NO2009000401 W NO 2009000401W WO 2010059065 A1 WO2010059065 A1 WO 2010059065A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipeline
wall
deposit
thickness
image
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.)
Ceased
Application number
PCT/NO2009/000401
Other languages
English (en)
Inventor
Kjell STØRKSEN
Rainer Hoffmann
Lene Amundsen
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.)
Equinor ASA
Original Assignee
Statoil ASA
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 Statoil ASA filed Critical Statoil ASA
Priority to AU2009318229A priority Critical patent/AU2009318229A1/en
Priority to US13/130,664 priority patent/US8842297B2/en
Priority to GB1108422.5A priority patent/GB2477251B/en
Priority to BRPI0920948A priority patent/BRPI0920948A2/pt
Priority to MX2011005488A priority patent/MX2011005488A/es
Publication of WO2010059065A1 publication Critical patent/WO2010059065A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/005—Control means for lapping machines or devices
    • B24B37/013—Devices or means for detecting lapping completion
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
    • G01B11/0625—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating with measurement of absorption or reflection
    • 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
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters

Definitions

  • the present invention relates to a method for measuring the thickness of any deposit of material on the inner wall of a pipeline, for instance an oil pipeline.
  • Known techniques for measuring or otherwise determining the thickness of any deposit of material on the inner wall of a pipeline include pressure pulsing and measuring the deposit removed in a pig (pipeline inspection gauge) removal operation.
  • pressure pulsing is that the accuracy is low.
  • measuring the deposit removed in a pig removal operation gives no information about the deposit distribution along the pipeline.
  • a method for measurement of the thickness of any deposit of material on the inner wall of a pipeline at least partly filled with a medium including hydrocarbons, the medium being for instance oil or natural gas comprising: projecting infrared light onto the inner wall of the pipeline along a line corresponding to the intersection between the inner wall of the pipeline and a cross-sectional plane of the pipeline; registering an image of the infrared light projected on the inner wall of the pipeline; and determining the thickness of any deposit of material on the inner wall of the pipeline based on the registered image.
  • the deposit thickness may he measured with a high accuracy of about 0.1 mm by means of the present invention.
  • the proj ected light may be emitted at about 1100 nm - 1700 nm in wavelength, preferably at about 1300 nm - 1675 nm in wavelength, and more preferably at about 1550 nm - 1625 nm in wavelength.
  • Oil and asphaltenes absorb heavily at about 1100 nm, but the absorption disappears at about 1600 nm. Further, water absorbs heavily between about 1400 and 1600 nm.
  • light sources and photosensors for wavelengths above 1600 nm are not readily available. Hence, by using infrared light at about 1600 nm, measurements can be efficiently effectuated in filled pipes, either with oil or multiphase compositions of gas/water/oil.
  • the method may further comprise determining any variations in thickness of any deposit of material on the inner wall of the structure along said line.
  • a multi-phase flow e.g. water and oil
  • a pipeline may result in a deposit or deposition occurring inhomogeneously around the pipeline inside circumference. Determining the variation in deposit thickness is important both for research and development purposes, but also for issues like e.g. corrosion where it is important to determine the weakest part, i.e. the most corroded one.
  • the average deposit thickness along the entire said line may be determined.
  • the method may further comprise determining the flow regimen in a multiphase flow in the pipeline based on the determined variation in thickness.
  • said medium is flowing or conveyed in the pipline
  • the step of projecting infrared light onto the inner wall of the pipeline along a line corresponding to the intersection between the inner wall of the pipeline and a cross-sectional plane of the pipeline and the step of registering an image of the infrared light projected on the inner wall of the pipeline are performed by a device moved longitudinally within the pipeline by means of said flowing or conveyed medium.
  • the step of determining the thickness of any deposit of material on the inner wall of the pipeline based on the registered image includes comparing the registered image with a previous image of the inner wall of the pipeline or with the known inner diameter of the pipeline without deposit. The previous image may be provided in a preliminary measurement.
  • a device for optical measurement of the thickness of any deposit of material on the inner wall of a structure which device is placeable inside the structure and comprises: a light source unit adapted to project infrared light onto the inner wall of the structure along a line corresponding to the intersection between the inner wall of the structure and a cross-sectional plane of the structure; at least one infrared photosensor or camera adapted to register an image of the infrared light projected on the inner wall of the structure; and means for providing the image registered by the at least one infrared photosensor or camera to a processing means adapted to determine the thickness of any deposit of material on the inner wall of the structure based on the registered image.
  • the light source unit comprises a laser adapted to emit light at about 1100 rim - 1700 nm in wavelength, preferably at about 1300 nm - 1675 nm in wavelength, and more preferably at about 1550 nm - 1625 nm in wavelength.
  • the processing means is further adapted to determine the thickness of any deposit of material on the inner wall of the structure by comparing the registered image with a previous image of the inner wall of the structure without any deposit of material. Alternatively, the thickness of any deposit of material on the inner wall of the structure may be determined by comparing the registered image with a previous image of the inner wall of the structure including a deposit of material with known thickness.
  • the processing means is further adapted to determine any variations in thickness of any deposit of material on the inner wall of the structure along said line.
  • the light source unit comprises a laser and a conical mirror. Instead of a conical mirror, a rotating mirror or reflector may be used, e.g.
  • the processing means is included in the device.
  • the means for providing the image registered by the at least one infrared photosensor or camera to the processing means may simply be a direct connection between the camera and the processing means.
  • the processing means may be an external processing means, hi this case, the means for providing the registered image to the processing means may for instance be a removable memory or a transmitter.
  • the structure is a pipeline (e.g. an oil or gas pipeline), and device is a probe moveable longitudinally within the pipeline.
  • a pipeline e.g. an oil or gas pipeline
  • device is a probe moveable longitudinally within the pipeline.
  • the device is connectable to, or form part of, a pipeline inspection gauge (pig).
  • the pig may provide for transportation of the device through the structure.
  • the structure is adapted to convey a flow of fluid, and said cross-sectional plane of the structure is perpendicular to the flow direction of said fluid.
  • the fluid may for instance be oil or natural gas.
  • the oil's flow direction generally corresponds to the longitudinal direction of the pipeline.
  • a method for optical measurement of the thickness of any deposit of material on the inner wall of a structure comprising: projecting infrared light onto the inner wall of the structure along a line corresponding to the intersection between the inner wall of the structure and a cross- sectional plane of the structure; registering an image of the infrared light projected on the inner wall of the structure; and processing the registered image for determining the thickness of any deposit of material on the inner wall of the structure based on the registered image.
  • the structure is a pipeline at least partly filled with a fluid, for instance oil.
  • FIG. 1 schematically illustrates a measurement device useful for carrying out the present invention.
  • Fig. 2 is a schematic perspective view of the pipeline of fig. 1.
  • Fig. 3 shows an exemplary image captured by the camera of the device of fig. 1.
  • Fig. 4 illustrates how the processing means may determine the deposit thickness.
  • Fig. 5 illustrate a cross-section of a pipeline with non-uniform deposition along the pipeline circumference.
  • the probe 10 comprises an elongated mechanical support structure 12 on which a laser light source 14 and a 360 degree reflector or mirror 16 are mounted.
  • the laser 14 is adapted to emit infrared (IR) light.
  • IR light is generally construed as IR radiation having wavelengths between about 700 nm and 1 mm.
  • the laser 14 is adapted to emit IR light at a wavelength of about 1600 nm
  • the laser 14 is arranged so as to emit the IR light in a beam along the longitudinal axis of the probe 10.
  • the 360 degree reflector or mirror 16 is preferably a conical mirror.
  • the conical mirror 16 is disposed with its apex facing the laser 14 and its axis coincident with the longitudinal axis of the probe 10.
  • the conical mirror 16 is further arranged such that the TR. beam emitted by the laser 14 is distributed over substantially 360 degrees in substantially one plane perpendicular to the longitudinal axis of the probe 10.
  • the probe 10 further comprises least one digital IR photosensor or camera 18 generally adapted form an image using infrared radiation.
  • the camera 18 is mounted to the support structure 12. Specifically, the camera 18 is disposed at a fixed and known axial distance from the laser 14 and mirror 16 on the opposite side of the mirror 16 compared to laser 14, with its lens 20 directed towards the base of conical mirror 16 with its optical axis preferably coincident with the longitudinal axis of the probe 10.
  • the probe 10 further comprises a removable memory 22.
  • the memory 22 is adapted to store images captured by the camera 18, and is used for providing the images to an external processing means 24.
  • the probe 10 and processing means 24 here form part of a system for determining the thickness of any deposit of material on the inner wall of a pipeline by means of optical measurement.
  • the probe 10 may further comprise additional elements not shown in the drawings, for instance a power source for powering e.g. the laser 14 and camera 18, allowing independent operation of the probe 10.
  • a power source for powering e.g. the laser 14 and camera 18, allowing independent operation of the probe 10.
  • a medium including hydrocarbons may for instance be oil or natural gas.
  • Oil and natural gas contain components (e.g. wax, hydrate, scale, etc.) that possibly deposit on the pipe wall as the oil or gas streams or flows through the pipeline.
  • Other deposits that can be measured by means of the present invention include sand and corrosion.
  • the emitted IR beam is projected via the conical mirror 16 onto the inside or inner wall 28 of the pipeline 26 along a line 30 (see fig. 2) corresponding to the intersection between the inner wall 28 of the pipeline and a cross-sectional plane of the pipeline.
  • the resulting IR laser projection along the line 30, which line 30 runs along the inner circumference of the pipeline 26, is then captured and registered by the IR camera 18.
  • the emitted IR light is caused to fall onto the inner wall 28 along the line 30, whereby the line 30 is illuminated by infrared light. Then, infrared light reflected from the line 30 is registered by the camera 18.
  • the distance between the mirror 16 and the camera 18 in combination with the focal length of the lens 20 should be appropriately selected to be able to capture the complete projection on the inner wall 28 of the pipeline 26.
  • the image registered by the camera 18 will show basically a circle 32 corresponding to the inner profile of the pipeline 26, as illustrated in fig. 3.
  • the diameter of the circle 32 will generally decrease with increased deposit of material on the inner wall 28 of the pipeline 26.
  • the image registered by the camera 18 is stored in the removable memory 22.
  • the processing means 24 comprises a software module which analyses the image and detects from a number of sampling points of the circle 32 representing the IR laser projection an averaged pipeline diameter (diameter of circle 34 in fig. 4) including any deposit on the inner wall 28 of the pipeline 26. It should be noted that the averaged pipeline diameter including any deposit may be determined even though the circle 32 is not entirely complete. Then, the processing means 24 may determine the average deposit thickness by comparing the averaged pipeline diameter including deposits to the known pipeline diameter without deposits (diameter of circle 36 in fig. 4).
  • the average deposit thickness is equal to (diameter c i rc i e 36 -diameter C!rc i e 34 )/2.
  • the known pipeline diameter without deposit may for instance be determined from a previous image produced by the probe 10, as will be explained further below. Alternatively, the known pipeline diameter without deposit may just be the inner diameter according to the pipeline specification. Experiments show that the deposit thickness may be measured with an accuracy of 0.1 mm by means of the present invention.
  • the processing means 24 may further be adapted to determine any variations in thickness of any deposit of material along the inside circumference of the pipeline 26. Having a multi-phase flow in the pipeline, the deposition will not necessarily occur homogeneously around the pipeline circumference, as illustrated in fig. 5. With a two- phase stratified oil- water flow (41-42), deposit 44 will only occur in the upper sector where the oil 41 is in contact with the pipeline wall 28. However, this non-uniform deposit of material will indeed show on the image captured by the camera 18, allowing the processing means 24 to determine the variation in deposit thickness along the circumference.
  • the processing means 24 may for instance split or divide the circumference into a plurality of (circular) sectors, detect the average radius for each sector from the registered image, and compare the average radius for each sector with the known radius of the pipeline. The more sectors, the more detailed determination, and vice versa. Also, each sampling point of the circle 32 could be analysed to determine variations in deposit around the inside circumference of the pipeline 26.
  • the orientation of the probe 10 namely any rotation of the probe about its longitudinal axis, should be known to ensure correct measurement.
  • the probe 10 may be equipped with appropriate means (not shown) for detecting said orientation of the probe. Said means may for instance comprise an acceleration sensor. The detected orientation may be taken into account by the processing means 24 when determining any variations in thickness of any deposit of material along the inside circumference of the pipeline 26.
  • Measuring the variation in deposit thickness along the inner circumference may also be used to derive or determine the flow regimen in a multiphase flow. For instance, if it is known that the pipeline contains oil and water and the deposit is homogeneously distributed (i.e. no variation in deposit thickness along the inner circumference), the flow has to be fully dispersed (e.g. water droplets dispersed in oil). If the deposit looks like in fig. 5, the flow may be completely stratified. Something in between these two extremes indicates wavy/slug flow. Determining the flow regimen may for instance be perfomed by the processing means 24.
  • the probe 10 is inserted into the pipeline 26 when there is substantially no deposit on the inner wall 28 of the pipeline, for instance just after the pipeline has been brought into use or just after cleaning of the pipeline.
  • the probe 10 is centrally positioned in the pipeline 26 with respect to the cross-section of the pipeline, to facilitate the measurement.
  • the probe 10 may be mechanically connected to a conventional pipeline inspection gauge (pig) 38 (see fig. 1) for transportation of the probe 10 through the pipeline 26.
  • a pipeline inspection gauge is generally propelled by the pressure of the product in the pipeline.
  • the probe 10 As oil streams though the pipeline 26, the probe 10 is moved longitudinally within the pipeline 26 along with the pig 38, as indicated by arrow 40 in fig. 1.
  • a first set of images are captured and registered in the manner explained per se above (i.e. by projecting IR light onto the pipeline's inner wall and registering an image of the projected IR light on the inner wall).
  • the images are preferably captured at certain positions along the pipeline 30, for instance one image every two meters, or at predefined time intervals.
  • the captured images are stored in the removable memory 22, and subsequently transferred to the processing means 24.
  • the processing means 24 analyses the images and detects the pipeline diameter (hence without deposits) at said certain positions along the pipeline 26.
  • the probe 10 is again inserted into and moved through the filled pipeline 26, capturing a second set of images at said certain positions along the pipeline 26.
  • the second set of images is also transferred to and analysed by the processing means 24 for detection of the averaged or detailed pipeline diameter (hence with any deposits) at said certain positions along the pipeline 26.
  • the processing means 24 compares the images of the first and the second sets in order to determine the thickness of any deposit of material on the inside of the pipeline 26. Also, a profile of the deposits along the length of the pipeline may be produced, by pasting the the images together and form a long image of the whole pipeline.
  • the secondary stage may be repeated a plurality of times to monitor how the deposit thickness varies along the pipeline 26 length over time.
  • the current deposit thickness may be determined by comparison to a previous image from the preliminary stage without any deposit.
  • the current deposit thickness may be determined by comparison to a previous image (from a previous secondary stage) of the inner wall of the structure including a deposit of material with known thickness.
  • the determined deposit thickness may be the absolute thickness, and/or the relative thickness compared to a previous measurement.
  • the relative thickness may for instance be an increase in deposit thickness, or a decrease in deposit thickness. The latter may be the result of a cleaning operation of the pipeline.
  • the secondary stage(s), as well as the preliminary stage may be carried out during production when the pipeline 26 is filled with e.g. oil, as explained above.
  • the setup of the device 10, such as the position of the camera 18, the focal length of the lens 20, etc. should remain constant or fixed over the first and second stages to facilitate comparison between images from the first and second stages.
  • Another example of a routine for surveying or monitoring the pipeline 26 includes performing said secondary stage one or more times, and compare the registered images to the pipeline diameter according to the pipeline specification (or to images from a previous secondary stage measurement). In this routine, the above mentioned primary stage may be omitted.
  • the probe 10 maybe permanentry installed (or at least installed for a reasonably long time) at one place in the pipeline 26, to monitor deposition at this location.
  • the present invention by no means is limited to the embodiment(s) described above. On the contrary, many modifications and variations are possible within the scope of the appended claims.
  • the present invention is applicable to all kinds of structures or process equipment that handle hydrocarbon streams containing components that possibly deposit on the pipe wall, e.g. wax, scale, hydrates etc.
  • the probe may be provided with a wired or wireless interface for providing (e.g. transmitting) a registered image to the processing means. Further, the processing means may be included in the probe.
  • the probe itself may be adapted to be propelled by means of the pressure of the product in the pipeline, or comprise drive means (e.g. wheels) for movement of the probe through the pipeline. In the latter case, the probe may be moved through an unfilled pipeline.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

La présente invention porte sur un procédé pour la mesure de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne d'un pipeline (26) au moins partiellement rempli d'un fluide comprenant des hydrocarbures, le fluide étant par exemple du pétrole ou du gaz naturel, le procédé comprenant : la projection d'une lumière infrarouge sur la paroi interne (28) du pipeline le long d'une ligne (30) correspondant à l'intersection entre la paroi interne du pipeline et un plan en coupe transversale du pipeline; l'enregistrement d'une image de la lumière infrarouge projetée sur la paroi interne du pipeline; et la détermination de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne du pipeline en fonction de l'image enregistrée.
PCT/NO2009/000401 2008-11-24 2009-11-23 Procédé pour la mesure de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne d'un pipeline Ceased WO2010059065A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2009318229A AU2009318229A1 (en) 2008-11-24 2009-11-23 Method for measurement of the thickness of any deposit of material on inner wall of a pipeline
US13/130,664 US8842297B2 (en) 2008-11-24 2009-11-23 Method for measurement of the thickness of any deposit of material on inner wall of a pipeline
GB1108422.5A GB2477251B (en) 2008-11-24 2009-11-23 Method for measurement of the thickness of any deposit of material on inner wall of a pipeline
BRPI0920948A BRPI0920948A2 (pt) 2008-11-24 2009-11-23 método para medição da espessura de qualquer depósito de material sobre a parede interna de uma tubulação.
MX2011005488A MX2011005488A (es) 2008-11-24 2009-11-23 Metodo para la medicion del espesor de cualquier deposito de material en la pared interna de una tuberia.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20084944A NO333307B1 (no) 2008-11-24 2008-11-24 Anordning og fremgangsmate for optisk maling av tykkelsen av enhver avsetning av materiale pa innerveggen til en konstruksjon
NO20084944 2008-11-24

Publications (1)

Publication Number Publication Date
WO2010059065A1 true WO2010059065A1 (fr) 2010-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000401 Ceased WO2010059065A1 (fr) 2008-11-24 2009-11-23 Procédé pour la mesure de l'épaisseur d'un quelconque dépôt de matériau sur la paroi interne d'un pipeline

Country Status (7)

Country Link
US (1) US8842297B2 (fr)
AU (1) AU2009318229A1 (fr)
BR (1) BRPI0920948A2 (fr)
GB (1) GB2477251B (fr)
MX (1) MX2011005488A (fr)
NO (1) NO333307B1 (fr)
WO (1) WO2010059065A1 (fr)

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EP2626624A4 (fr) * 2010-10-04 2016-12-21 Mitsubishi Heavy Ind Ltd Dispositif permettant de contrôler la réduction d'épaisseur d'une surface interne dans un tuyau de transfert de chaleur ou d'une surface interne dans un tuyau d'évaporation
CN109791128A (zh) * 2016-07-12 2019-05-21 美国钢管产品有限公司 测量和检查管材的方法和系统
CN112325788A (zh) * 2020-11-06 2021-02-05 中国矿业大学 基于数字照相的隧道内壁变形特征原位量测装置及方法

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JP5880097B2 (ja) 2012-02-09 2016-03-08 株式会社Ihi 内径測定装置
JP5880096B2 (ja) 2012-02-09 2016-03-08 株式会社Ihi 内径測定装置
JP5786971B2 (ja) 2012-02-09 2015-09-30 株式会社Ihi 内径測定装置
JP5915222B2 (ja) * 2012-02-09 2016-05-11 株式会社Ihi 内径測定装置
JP5915223B2 (ja) 2012-02-09 2016-05-11 株式会社Ihi 内径測定装置及び内径測定方法
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CA2921591A1 (fr) 2013-08-18 2015-02-26 Illusense Inc. Systemes et procedes pour le balayage optique de conduites de transport de fluide
US9651503B2 (en) * 2014-09-05 2017-05-16 General Electric Company System and method for surface inspection
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CN105484728A (zh) * 2016-01-04 2016-04-13 魏建光 激光式套管通径规
IT201900006925A1 (it) * 2019-05-16 2020-11-16 Sica Spa Sistema di controllo della qualità di lavorazione di tubi in materiale termoplastico
DE102019113383A1 (de) * 2019-05-20 2020-11-26 Rosen Swiss Ag Molch umfassend einen Röntgenfluoreszenzsensor
KR102299127B1 (ko) * 2020-12-28 2021-09-06 영남대학교 산학협력단 배관 내 위치 측정 장치
DE102021000582B4 (de) 2021-02-05 2025-08-14 Albrecht Noll Messsystem zur Messung der Geradheit im Innern von Hohlzylindern
WO2024178101A1 (fr) * 2023-02-22 2024-08-29 Kai Systems Capteurs, systèmes et procédés d'encrassement de tube interne
CN116592774B (zh) * 2023-07-18 2023-09-19 成都洋湃科技有限公司 管壁污垢检测方法、装置、存储介质及电子设备

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GB201108422D0 (en) 2011-07-06
US20110235057A1 (en) 2011-09-29
AU2009318229A1 (en) 2011-06-30
GB2477251B (en) 2012-10-10
US8842297B2 (en) 2014-09-23
GB2477251A (en) 2011-07-27

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