GB1065784A - Improvements in or relating to method and apparatus for pulsed well logging - Google Patents

Improvements in or relating to method and apparatus for pulsed well logging

Info

Publication number
GB1065784A
GB1065784A GB1436764A GB1436764A GB1065784A GB 1065784 A GB1065784 A GB 1065784A GB 1436764 A GB1436764 A GB 1436764A GB 1436764 A GB1436764 A GB 1436764A GB 1065784 A GB1065784 A GB 1065784A
Authority
GB
United Kingdom
Prior art keywords
neutron
moderator
paraffin
relating
pulses
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
GB1436764A
Inventor
Arthur Homer Youmans
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Priority to GB1436764A priority Critical patent/GB1065784A/en
Publication of GB1065784A publication Critical patent/GB1065784A/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
    • G01V5/104—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 secondary Y-rays as well as reflected or back-scattered neutrons
    • G01V5/105—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 secondary Y-rays as well as reflected or back-scattered neutrons 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)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Radiation (AREA)

Abstract

1,065,784. Detecting neutrons. DRESSER INDUSTRIES Inc. April 7, 1964, No. 14367/64. Heading G6P. [Also in Divisions G1 and H1] Neutron detectors.-A detector for slow or epithermal neutrons comprises a proportional counter 105, Fig. 12, surrounded by paraffin or other moderator 112 and a thermal neutron shield 111. An alternative detector comprises a scintillator in the form of lithium iodide slabs pasted about a core of paraffin moderator, the whole being encased in a thermal neutron shield. Neutron sources.-A source of high energy neutron pulses comprises an oscillator 38, Fig. 2 (not shown), producing a 2 kv. square wave which is applied between a housing 23 and a grid 39. This periodically ionises deuterium gas in the space between insulators 40,41. The deuterium ions are accelerated towards a target 43 containing tritium by a 200 kv. supply 42 where they react to form 14À4 Mev. neutron pulses.
GB1436764A 1964-04-07 1964-04-07 Improvements in or relating to method and apparatus for pulsed well logging Expired GB1065784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1436764A GB1065784A (en) 1964-04-07 1964-04-07 Improvements in or relating to method and apparatus for pulsed well logging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1436764A GB1065784A (en) 1964-04-07 1964-04-07 Improvements in or relating to method and apparatus for pulsed well logging

Publications (1)

Publication Number Publication Date
GB1065784A true GB1065784A (en) 1967-04-19

Family

ID=10039936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1436764A Expired GB1065784A (en) 1964-04-07 1964-04-07 Improvements in or relating to method and apparatus for pulsed well logging

Country Status (1)

Country Link
GB (1) GB1065784A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388269A1 (en) * 1977-04-20 1978-11-17 Texaco Development Corp METHOD AND APPARATUS FOR DETERMINING THE POROSITY OF SOIL LAYERS
RU2481598C2 (en) * 2007-12-04 2013-05-10 Шлюмбергер Текнолоджи Б.В. Sealed assembly and neutron shielding for scintillation-type radiation detectors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388269A1 (en) * 1977-04-20 1978-11-17 Texaco Development Corp METHOD AND APPARATUS FOR DETERMINING THE POROSITY OF SOIL LAYERS
RU2481598C2 (en) * 2007-12-04 2013-05-10 Шлюмбергер Текнолоджи Б.В. Sealed assembly and neutron shielding for scintillation-type radiation detectors

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