CA2177021A1 - Microscopy imaging of earth formations - Google Patents

Microscopy imaging of earth formations

Info

Publication number
CA2177021A1
CA2177021A1 CA002177021A CA2177021A CA2177021A1 CA 2177021 A1 CA2177021 A1 CA 2177021A1 CA 002177021 A CA002177021 A CA 002177021A CA 2177021 A CA2177021 A CA 2177021A CA 2177021 A1 CA2177021 A1 CA 2177021A1
Authority
CA
Canada
Prior art keywords
formation
seal
tool
images
optical 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.)
Granted
Application number
CA002177021A
Other languages
French (fr)
Other versions
CA2177021C (en
Inventor
Francois M. Auzerais
Robert J. Schroeder
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.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada Ltd
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 Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Publication of CA2177021A1 publication Critical patent/CA2177021A1/en
Application granted granted Critical
Publication of CA2177021C publication Critical patent/CA2177021C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/02—Prospecting
    • 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
    • E21B47/002—Survey of boreholes or wells by visual inspection
    • E21B47/0025—Survey of boreholes or wells by visual inspection generating an image of the borehole wall using down-hole measurements, e.g. acoustic or electric
    • 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
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/107—Locating fluid leaks, intrusions or movements using acoustic means
    • 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
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/113—Locating fluid leaks, intrusions or movements using electrical indications; using light radiations
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • E21B49/10—Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers

Abstract

Images of rock formations below the earth's surface can be obtained on a microscopic scale. A borehole tool uses a seal to isolate an interval of the formation from borehole fluids which are outside the seal. A probe of the toot engages a wall of the formation and then draws formation fluid from the formation into the interior of the tool. The tool then produces an optical image of the formation which indicates rock texture. The seal can comprise a pad, inflatable packers, compressional packers, or cement plugs. The images of the formation can be obtained with electro-optic imagers such as charge-coupled devices (CCD) or a camera operating in the visible and/or near infrared range, or with ultrasonic transducers operating in the sub-MHz to mid GHz range, for example. The near infrared range provides an optical image of the formation through opaque fluids such as oil based muds or oil itself.
CA002177021A 1995-06-07 1996-05-21 Microscopy imaging of earth formations Expired - Fee Related CA2177021C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/483,137 1995-06-07
US08/483,137 US5663559A (en) 1995-06-07 1995-06-07 Microscopy imaging of earth formations

Publications (2)

Publication Number Publication Date
CA2177021A1 true CA2177021A1 (en) 1996-12-08
CA2177021C CA2177021C (en) 2008-04-08

Family

ID=23918822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002177021A Expired - Fee Related CA2177021C (en) 1995-06-07 1996-05-21 Microscopy imaging of earth formations

Country Status (7)

Country Link
US (1) US5663559A (en)
EP (1) EP0747569B1 (en)
JP (1) JPH09158663A (en)
AU (1) AU697737B2 (en)
CA (1) CA2177021C (en)
DE (1) DE69626568D1 (en)
NO (1) NO319020B1 (en)

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Also Published As

Publication number Publication date
CA2177021C (en) 2008-04-08
EP0747569A3 (en) 1998-04-29
DE69626568D1 (en) 2003-04-17
EP0747569B1 (en) 2003-03-12
EP0747569A2 (en) 1996-12-11
JPH09158663A (en) 1997-06-17
AU5236996A (en) 1996-12-19
NO962392L (en) 1996-12-09
NO319020B1 (en) 2005-06-06
AU697737B2 (en) 1998-10-15
US5663559A (en) 1997-09-02
NO962392D0 (en) 1996-06-06

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Effective date: 20160524