CA2503225A1 - Enhanced measurement of azimuthal dependence of subterranean parameters - Google Patents

Enhanced measurement of azimuthal dependence of subterranean parameters Download PDF

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Publication number
CA2503225A1
CA2503225A1 CA002503225A CA2503225A CA2503225A1 CA 2503225 A1 CA2503225 A1 CA 2503225A1 CA 002503225 A CA002503225 A CA 002503225A CA 2503225 A CA2503225 A CA 2503225A CA 2503225 A1 CA2503225 A1 CA 2503225A1
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CA
Canada
Prior art keywords
logging
logging sensor
azimuth
azimuthal
azimuthal dependence
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
CA002503225A
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French (fr)
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CA2503225C (en
Inventor
Samuel Mark Haugland
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Schlumberger Canada Ltd
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PathFinder Energy Services Inc
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Publication date
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Publication of CA2503225A1 publication Critical patent/CA2503225A1/en
Application granted granted Critical
Publication of CA2503225C publication Critical patent/CA2503225C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/61—Analysis by combining or comparing a seismic data set with other data
    • G01V2210/616—Data from specific type of measurement
    • G01V2210/6163—Electromagnetic
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/61—Analysis by combining or comparing a seismic data set with other data
    • G01V2210/616—Data from specific type of measurement
    • G01V2210/6167—Nuclear

Abstract

A method for estimating an azimuthal dependence of a parameter of a borehole using logging sensor measurements acquired as a function of azimuth of the logging sensors is provided. The method includes acquiring at least one logging sensor measurement and a corresponding azimuth from a downhole tool. The method further includes processing a convolution of the logging sensor measurement and corresponding azimuth with a predetermined window function to determine convolved logging sensor data for at least one azimuthal position. Certain embodiments of this invention may be advantageously utilized in LWD imaging applications to provide for superior image resolution and noise rejection as compared to prior art imaging techniques.
CA002503225A 2004-04-19 2005-04-18 Enhanced measurement of azimuthal dependence of subterranean parameters Active CA2503225C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/827,134 2004-04-19
US10/827,134 US7027926B2 (en) 2004-04-19 2004-04-19 Enhanced measurement of azimuthal dependence of subterranean parameters

Publications (2)

Publication Number Publication Date
CA2503225A1 true CA2503225A1 (en) 2005-10-19
CA2503225C CA2503225C (en) 2008-01-08

Family

ID=34634679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002503225A Active CA2503225C (en) 2004-04-19 2005-04-18 Enhanced measurement of azimuthal dependence of subterranean parameters

Country Status (3)

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US (2) US7027926B2 (en)
CA (1) CA2503225C (en)
GB (1) GB2413853B (en)

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Also Published As

Publication number Publication date
GB0507741D0 (en) 2005-05-25
US7027926B2 (en) 2006-04-11
GB2413853A (en) 2005-11-09
CA2503225C (en) 2008-01-08
GB2413853B (en) 2007-10-10
US20060173627A1 (en) 2006-08-03
US7403857B2 (en) 2008-07-22
US20050234647A1 (en) 2005-10-20

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