Multi-tracer logging technique

Details Multi-tracer logging technique Multi-tracer logging technique

1981-10-26

1984-11-13

Howell, Janice A.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

G01V 500

Patent

active

044828063

ABSTRACT:
Method of logging a plurality of underground formations wherein a first and a second gamma ray emitting radioactive tracers with different energy levels are introduced into the formations. Logs are produced of the tracers as the traced fluids pass through the formations and thereafter the logs are analyzed to determined changes in effective permeabilities and sweep of the formations.

REFERENCES:
patent: 3406284 (1968-10-01), Young
patent: 3424903 (1969-01-01), Lawson
patent: 4085798 (1978-04-01), Schweitzer et al.

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