Two-pulse tracer ejection method for determining injection profi

Details Two-pulse tracer ejection method for determining injection profi Two-pulse tracer ejection method for determining injection profi

1983-09-14

1986-11-11

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

250260, G01V 504

Patent

active

046224637

ABSTRACT:
In a method of radioactive tracer logging, two slugs of tracer material are ejected. The slugs are ejected either sequentially from a single location or simultaneously from two spaced-apart locations. The distance between the tracer slugs is measured by moving a detector through the tracer slugs as they move down the borehole. The distance between the two slugs of tracer material are repeatedly measured as a function of depth, and from the measurements the amount of fluid exiting the wellbore is calculated to provide an injection profile of the well.

REFERENCES:
patent: 3255347 (1966-06-01), Cobb
patent: 3590923 (1971-07-01), Cooke
patent: 3902362 (1975-09-01), Tomich
patent: 4055399 (1977-10-01), Parrish
patent: 4168746 (1979-09-01), Sheely
patent: 4196619 (1980-04-01), Collins
A Primer on Radioactive Tracer Injection Profiling, by Gunter J. Litchtenberger, Sun Production Company.

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