OA04323A - Improvements in techniques of hiding the density of geological formations. - Google Patents

Improvements in techniques of hiding the density of geological formations.

Info

Publication number
OA04323A
OA04323A OA54816A OA54816A OA04323A OA 04323 A OA04323 A OA 04323A OA 54816 A OA54816 A OA 54816A OA 54816 A OA54816 A OA 54816A OA 04323 A OA04323 A OA 04323A
Authority
OA
OAPI
Prior art keywords
hiding
techniques
density
geological formations
geological
Prior art date
Application number
OA54816A
Other languages
French (fr)
Original Assignee
Soc D Prospection Electr Schlu
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
Priority claimed from FR7202181A external-priority patent/FR2168849B1/fr
Priority claimed from FR7202183A external-priority patent/FR2168850A1/en
Priority claimed from FR7243983A external-priority patent/FR2209941B2/fr
Application filed by Soc D Prospection Electr Schlu filed Critical Soc D Prospection Electr Schlu
Publication of OA04323A publication Critical patent/OA04323A/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
    • 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
    • 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
    • G01V5/125—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 and detecting the secondary gamma- or X-rays in different places along the bore hole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Details Of Television Scanning (AREA)
  • Color Television Systems (AREA)
  • Television Signal Processing For Recording (AREA)
OA54816A 1972-01-24 1973-01-24 Improvements in techniques of hiding the density of geological formations. OA04323A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7202181A FR2168849B1 (en) 1972-01-24 1972-01-24
FR7202183A FR2168850A1 (en) 1972-01-24 1972-01-24 Borehole strata density measurement - with correction for ettors by baryta deposits from drilling mud
FR7243983A FR2209941B2 (en) 1972-01-24 1972-12-11

Publications (1)

Publication Number Publication Date
OA04323A true OA04323A (en) 1980-01-15

Family

ID=27249762

Family Applications (1)

Application Number Title Priority Date Filing Date
OA54816A OA04323A (en) 1972-01-24 1973-01-24 Improvements in techniques of hiding the density of geological formations.

Country Status (4)

Country Link
EG (1) EG11628A (en)
IT (1) IT1012522B (en)
NO (2) NO139017C (en)
OA (1) OA04323A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK157266C (en) * 1976-03-04 1990-04-30 Schlumberger Prospection PROCEDURE AND APPARATUS FOR MEASURING THE TIGHTNESS OF FORMATIONS THAT A Borehole goes through

Also Published As

Publication number Publication date
NO139017B (en) 1978-09-11
NO145319C (en) 1982-02-24
NO780908L (en) 1973-07-25
EG11628A (en) 1977-09-30
IT1012522B (en) 1977-03-10
NO139017C (en) 1978-12-20
NO145319B (en) 1981-11-16

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