ZA842668B - 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
ZA842668B
ZA842668B ZA842668A ZA842668A ZA842668B ZA 842668 B ZA842668 B ZA 842668B ZA 842668 A ZA842668 A ZA 842668A ZA 842668 A ZA842668 A ZA 842668A ZA 842668 B ZA842668 B ZA 842668B
Authority
ZA
South Africa
Prior art keywords
probe
reception surface
boring
facing
radiation source
Prior art date
Application number
ZA842668A
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 ZA842668B publication Critical patent/ZA842668B/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 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
    • 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
    • G01V5/12—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 gamma or X-ray sources
    • 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
    • G01V5/14—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 a combination of several sources, e.g. a neutron and a gamma source

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)
  • Measurement Of Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Drilling And Boring (AREA)

Abstract

1. Search probe for introduction into a boring for the purpose of acquiring information concerning ore deposits, with a cylindrical housing (4), in which are concentrically arranged a radioactive radiation source (5), and a detector (17) which is shielded with respect to the radiation source (5) by a screening means (7, 8), which detector serves for determining fluorescence radiation induced by the radioactive radiation in the vicinity of the boring and which comprises a reception surface (16) disposed substantially perpendicularly of the axis of the probe (1) and facing the radiation source (5), that external surface (18) of the screening means (7, 8) which is facing the reception surface (16) forming a conical surface coaxial with the probe, characterised in that the reception surface (16) is extended on all sides up to the inside wall of the cylindrical housing (4), and that the conical surface which is defined by the conical external surface (18) facing the reception surface (16) intersects the boundary (11), remote from the reception surface (16), of that irradiated ring (12) of the wall (2) of the boring (3) which is determined by the screening means (7, 8).
ZA842668A 1983-04-11 1984-04-11 A probe for insertion into drill holes for the purpose of locating mineral deposits ZA842668B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3312883A DE3312883C1 (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
ZA842668B true ZA842668B (en) 1984-12-24

Family

ID=6195920

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA842668A ZA842668B (en) 1983-04-11 1984-04-11 A probe for insertion into drill holes for the purpose of locating mineral deposits

Country Status (9)

Country Link
EP (1) EP0124696B1 (en)
JP (1) JPS59224587A (en)
AT (1) ATE29312T1 (en)
AU (2) AU565798B2 (en)
CA (1) CA1223675A (en)
DD (1) DD216505A5 (en)
DE (1) DE3312883C1 (en)
FI (1) FI82558C (en)
ZA (1) ZA842668B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE328294T1 (en) * 2004-05-17 2006-06-15 Schlumberger Technology Bv BOREHOLE GAUGE WITH RADIATION PROTECTION SHIELDING AND MEASURING METHOD

Family Cites Families (14)

* 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
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
DE3312883C1 (en) 1984-08-02
CA1223675A (en) 1987-06-30
AU2665484A (en) 1984-10-18
FI841389A (en) 1984-10-12
AU565798B2 (en) 1987-10-01
AU562932B2 (en) 1987-06-25
EP0124696A1 (en) 1984-11-14
FI82558C (en) 1991-03-11
FI82558B (en) 1990-11-30
EP0124696B1 (en) 1987-09-02
JPS59224587A (en) 1984-12-17
AU2665184A (en) 1984-10-18
DD216505A5 (en) 1984-12-12
FI841389A0 (en) 1984-04-09
ATE29312T1 (en) 1987-09-15

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