CA1163021A - Method and apparatus for constituent analysis of earth formations - Google Patents

Method and apparatus for constituent analysis of earth formations

Info

Publication number
CA1163021A
CA1163021A CA000357830A CA357830A CA1163021A CA 1163021 A CA1163021 A CA 1163021A CA 000357830 A CA000357830 A CA 000357830A CA 357830 A CA357830 A CA 357830A CA 1163021 A CA1163021 A CA 1163021A
Authority
CA
Canada
Prior art keywords
spectrum
measured spectrum
standard spectra
filter operators
measured
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.)
Expired
Application number
CA000357830A
Other languages
English (en)
French (fr)
Inventor
James A. Grau
Russel C. Hertzog
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
Application granted granted Critical
Publication of CA1163021A publication Critical patent/CA1163021A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
    • G01V5/101—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting the secondary Y-rays produced in the surrounding layers of the bore hole
    • G01V5/102—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting the secondary Y-rays produced in the surrounding layers of the bore hole the neutron source being of the pulsed type

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Radiation (AREA)
CA000357830A 1979-08-09 1980-08-08 Method and apparatus for constituent analysis of earth formations Expired CA1163021A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6524479A 1979-08-09 1979-08-09
US065,244 1987-06-22

Publications (1)

Publication Number Publication Date
CA1163021A true CA1163021A (en) 1984-02-28

Family

ID=22061349

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000357830A Expired CA1163021A (en) 1979-08-09 1980-08-08 Method and apparatus for constituent analysis of earth formations

Country Status (5)

Country Link
CA (1) CA1163021A (it)
FR (1) FR2463421A1 (it)
GB (1) GB2056060B (it)
IT (1) IT1132388B (it)
MY (1) MY8500175A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464569A (en) * 1981-06-19 1984-08-07 Schlumberger Technology Corporation Method and apparatus for spectroscopic analysis of a geological formation
US4507554A (en) * 1983-02-07 1985-03-26 Schlumberger Technology Corporation Method and apparatus for determining borehole and formation constituents
US5360975A (en) * 1993-04-23 1994-11-01 Schlumberger Technology Corporation Method of gain regulation for downhole spectroscopy tools without using a calibration source
US6289283B1 (en) 1999-02-19 2001-09-11 Schlumberger Technology Corporation Downhole tool data correction method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521064A (en) * 1967-02-17 1970-07-21 Schlumberger Technology Corp Analysis of gamma ray energy spectrum for constituent identification
FR2224766A1 (en) * 1973-04-06 1974-10-31 Texaco Development Corp Radioactivity well logging - with comparison of gamma ray spectra with composite standard spectra
GB1408808A (en) * 1973-08-23 1975-10-08 Texaco Development Corp Well logging system with linearity control
AU533314B2 (en) * 1978-01-16 1983-11-17 Schlumberger Technology B.V. Nuclear well-logging

Also Published As

Publication number Publication date
FR2463421A1 (fr) 1981-02-20
FR2463421B1 (it) 1984-08-03
IT8024107A0 (it) 1980-08-08
GB2056060B (en) 1983-09-14
MY8500175A (en) 1985-12-31
GB2056060A (en) 1981-03-11
IT1132388B (it) 1986-07-02

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Legal Events

Date Code Title Description
MKEX Expiry