ZA842669B - A probe for insertion into drill holes for the purpose of locating mineral deposits - Google Patents

A probe for insertion into drill holes for the purpose of locating mineral deposits

Info

Publication number
ZA842669B
ZA842669B ZA842669A ZA842669A ZA842669B ZA 842669 B ZA842669 B ZA 842669B ZA 842669 A ZA842669 A ZA 842669A ZA 842669 A ZA842669 A ZA 842669A ZA 842669 B ZA842669 B ZA 842669B
Authority
ZA
South Africa
Prior art keywords
probe
borehole
drill holes
mineral deposits
slot
Prior art date
Application number
ZA842669A
Inventor
Klaus Janssen
Helmut Winnacker
Klaus Johnen
Original Assignee
Preussag Ag
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 Preussag Ag filed Critical Preussag Ag
Publication of ZA842669B publication Critical patent/ZA842669B/en

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 nuclear radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/14—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using a combination of several sources, e.g. a neutron and a gamma source
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/08—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
    • G01V5/12—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using gamma or X-ray sources

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)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Drilling And Boring (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

1. Probe (1) for being introduced into a borehole (3) for the exploration of or deposits, comprising a cylindrical housing (4), in which are concentrically arranged a radioactive radiation source (5) and a detector (17) shielded with respect to the radiation source by a screen (7, 8) for the detection of fluorescence radiation induced by the radioactive radiation in the vicinity of the borehole, characterized in that the screen (7, 8) for forming an irradiated ring (12) on the wall (2) of the borehole (3) forms a slot (6) disposed perpendicularly of the axis of the probe (1) and extending as far as the inside wall of the housing (4), which slot is defined by disc-like surfaces adjusted in their mutual spacing.
ZA842669A 1983-04-11 1984-04-11 A probe for insertion into drill holes for the purpose of locating mineral deposits ZA842669B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3312884A DE3312884C1 (en) 1983-04-11 1983-04-11 Probe for insertion into boreholes for the purpose of exploring ore deposits

Publications (1)

Publication Number Publication Date
ZA842669B true ZA842669B (en) 1984-11-28

Family

ID=6195921

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA842669A ZA842669B (en) 1983-04-11 1984-04-11 A probe for insertion into drill holes for the purpose of locating mineral deposits

Country Status (8)

Country Link
EP (1) EP0126219B1 (en)
JP (1) JPS59197882A (en)
AT (1) ATE32479T1 (en)
CA (1) CA1221476A (en)
DD (1) DD216506A5 (en)
DE (1) DE3312884C1 (en)
FI (1) FI82557C (en)
ZA (1) ZA842669B (en)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE718406C (en) * 1938-12-03 1942-03-11 Prospection Electr Procedes Sc Method and device for the investigation of the layers penetrated by a borehole
US2578722A (en) * 1950-05-18 1951-12-18 United States Steel Corp Apparatus for determining coating thickness
US2769918A (en) * 1952-10-02 1956-11-06 Gulf Research Development Co Epithermal neutron logging method using collimation
US2830187A (en) * 1954-01-22 1958-04-08 Serge A Scherbatskoy Radiation detector
US2909661A (en) * 1954-09-02 1959-10-20 Texaco Development Corp Radioactivity borehole logging
US3061725A (en) * 1958-03-03 1962-10-30 California Research Corp Comparison logging of geologic formation constituents
US3163761A (en) * 1962-10-29 1964-12-29 Texaco Inc Radiological well logging using neutron collimator to reduce the effect of well fluid on the log
FR1389417A (en) * 1963-04-01 1965-02-19 Commissariat Energie Atomique Dosing method and devices by applying
US3371574A (en) * 1963-07-31 1968-03-05 Robert J. Dwyer Oil detection device utilizing raman radiation
FR1387139A (en) * 1963-11-29 1965-01-29 Texaco Development Corp Improvements in methods and devices for radioactive sounding coring
US3321627A (en) * 1966-10-07 1967-05-23 Schlumberger Ltd Gamma-gamma well logging comprising a collimated source and detector
US3609366A (en) * 1968-11-01 1971-09-28 Schlumberger Technology Corp Systems for neutron decay time well logging
DE1960508A1 (en) * 1969-12-02 1971-06-09 Osoboje K Bjuro Ministerstwa G Radioisotope X-ray fluorescence analyzer for elemental analysis of rocks and ores under natural storage conditions
DE2347037C3 (en) * 1973-09-19 1980-01-24 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Measurement system of a borehole probe
US4168428A (en) * 1977-07-14 1979-09-18 Dresser Industries, Inc. Sync transmission method and apparatus for high frequency pulsed neutron spectral analysis systems

Also Published As

Publication number Publication date
FI841388A0 (en) 1984-04-09
EP0126219B1 (en) 1988-02-10
JPS59197882A (en) 1984-11-09
ATE32479T1 (en) 1988-02-15
FI82557C (en) 1991-03-11
FI841388A (en) 1984-10-12
EP0126219A1 (en) 1984-11-28
DD216506A5 (en) 1984-12-12
DE3312884C1 (en) 1984-06-14
FI82557B (en) 1990-11-30
CA1221476A (en) 1987-05-05

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