Published June 17, 1980 | Version v1
Patent Metadata-only

Well logging method and apparatus

Creators

Description

Methods and apparatus are provided forlogging an earth formation using a high-energy, high-intensity photon source. At least three indications of the total number of photons returning to a borehole as a resultof the interaction of emitted photons and the surrounding media are obtained at a different separation from the source along the borehole and are compared. Photons are obtained from a high-energy pulsed source. The method is particularly useful for obtaining a density profile of the surrounding media. (LL)

Availability note (English)

Available from Micromedia Ltd., 165 Hotel de Ville, Hull, Quebec, Canada J8X 3X2.

Additional details

Publishing Information

Imprint Pagination
31 p.
IPC:
Int. Cl. G01V 5/00.
IPC
Int. Cl. G01V 5/00.
Patent number
CA patent document 1079869/A/

INIS

Country of Publication
Canada
Country of Input or Organization
Canada
INIS RN
12627453
Subject category
S07: ISOTOPES AND RADIATION SOURCES; S58: GEOSCIENCES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BOREHOLES; DENSITY; GAMMA-GAMMA LOGGING; PULSE TECHNIQUES
Descriptors DEC
CAVITIES; PHYSICAL PROPERTIES; RADIOACTIVITY LOGGING; WELL LOGGING

Optional Information

Notes
U.S. pat. appl. 580398.