CA2115306A1 - Borescope Drill Pipe and Light Guide Sleeve - Google Patents

Borescope Drill Pipe and Light Guide Sleeve

Info

Publication number
CA2115306A1
CA2115306A1 CA 2115306 CA2115306A CA2115306A1 CA 2115306 A1 CA2115306 A1 CA 2115306A1 CA 2115306 CA2115306 CA 2115306 CA 2115306 A CA2115306 A CA 2115306A CA 2115306 A1 CA2115306 A1 CA 2115306A1
Authority
CA
Canada
Prior art keywords
borescope
drill pipe
light guide
guide sleeve
bore
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.)
Granted
Application number
CA 2115306
Other languages
French (fr)
Other versions
CA2115306C (en
Inventor
Kenneth Smart
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.)
Carsen Group Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2115306 priority Critical patent/CA2115306C/en
Publication of CA2115306A1 publication Critical patent/CA2115306A1/en
Application granted granted Critical
Publication of CA2115306C publication Critical patent/CA2115306C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G02B23/243—Objectives for endoscopes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

A borescope for inspecting the inside of bores such as drill pipe bores includes an elongate shaft to extend into the pipe. The shaft has an optical eye including an emitter to emit a light beam towards an inside surface of the bore and a receptor to receive light therefrom. The shaft may be rotated eccentrically about the bore axis so that the distance of the optical eye from a sector of the interior surface to be inspected is always less than the radius of the bore.
CA 2115306 1994-02-09 1994-02-09 Borescope drill pipe and light guide sleeve Expired - Fee Related CA2115306C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2115306 CA2115306C (en) 1994-02-09 1994-02-09 Borescope drill pipe and light guide sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2115306 CA2115306C (en) 1994-02-09 1994-02-09 Borescope drill pipe and light guide sleeve

Publications (2)

Publication Number Publication Date
CA2115306A1 true CA2115306A1 (en) 1995-08-10
CA2115306C CA2115306C (en) 1998-05-05

Family

ID=4152885

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2115306 Expired - Fee Related CA2115306C (en) 1994-02-09 1994-02-09 Borescope drill pipe and light guide sleeve

Country Status (1)

Country Link
CA (1) CA2115306C (en)

Also Published As

Publication number Publication date
CA2115306C (en) 1998-05-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed