DK139919B - Method and apparatus for controlling the gain in a nuclear borehole scanning system. - Google Patents

Method and apparatus for controlling the gain in a nuclear borehole scanning system.

Info

Publication number
DK139919B
DK139919B DK463972A DK463972A DK139919B DK 139919 B DK139919 B DK 139919B DK 463972 A DK463972 A DK 463972A DK 463972 A DK463972 A DK 463972A DK 139919 B DK139919 B DK 139919B
Authority
DK
Denmark
Prior art keywords
gain
controlling
scanning system
nuclear
borehole scanning
Prior art date
Application number
DK463972A
Other languages
Danish (da)
Other versions
DK139919C (en
Inventor
Ward Edward Schultz
Harry Davis Smith Jr
Dan Mccay Arnold
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Publication of DK139919B publication Critical patent/DK139919B/en
Application granted granted Critical
Publication of DK139919C publication Critical patent/DK139919C/da

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)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
DK463972A 1971-09-20 1972-09-20 Method and apparatus for controlling the gain in a nuclear borehole scanning system. DK139919B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18191071A 1971-09-20 1971-09-20

Publications (2)

Publication Number Publication Date
DK139919B true DK139919B (en) 1979-05-14
DK139919C DK139919C (en) 1979-10-15

Family

ID=22666321

Family Applications (1)

Application Number Title Priority Date Filing Date
DK463972A DK139919B (en) 1971-09-20 1972-09-20 Method and apparatus for controlling the gain in a nuclear borehole scanning system.

Country Status (12)

Country Link
JP (1) JPS559670B2 (en)
KR (1) KR780000747B1 (en)
AR (1) AR213058A1 (en)
AU (1) AU457489B2 (en)
BR (1) BR7206468D0 (en)
CA (1) CA963178A (en)
DE (1) DE2245833C3 (en)
DK (1) DK139919B (en)
ES (1) ES406787A1 (en)
FR (1) FR2153322B1 (en)
GB (1) GB1384099A (en)
MY (1) MY7800306A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56110142U (en) * 1980-01-28 1981-08-26
FR2485752A1 (en) * 1980-06-25 1981-12-31 Schlumberger Prospection METHOD AND DEVICE FOR MEASURING GAMMA RAYS IN A SURVEY
JPS59207400A (en) * 1983-05-10 1984-11-24 株式会社彦間製作所 Detecting mechanism of load of lifting gear

Also Published As

Publication number Publication date
DE2245833C3 (en) 1979-01-25
CA963178A (en) 1975-02-18
AU4607672A (en) 1974-03-07
FR2153322B1 (en) 1976-05-21
FR2153322A1 (en) 1973-05-04
AU457489B2 (en) 1975-01-30
ES406787A1 (en) 1975-11-01
GB1384099A (en) 1975-02-19
DE2245833A1 (en) 1973-04-12
AR213058A1 (en) 1978-12-15
JPS4838801A (en) 1973-06-07
KR780000747B1 (en) 1978-12-30
BR7206468D0 (en) 1973-07-19
DK139919C (en) 1979-10-15
MY7800306A (en) 1978-12-31
JPS559670B2 (en) 1980-03-11
DE2245833B2 (en) 1978-06-01

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