Compositions – Leather or fur treating
Patent
1982-06-22
1984-05-08
Guynn, Herbert B.
Compositions
Leather or fur treating
175 42, 252 85R, C09K 702
Patent
active
044473400
ABSTRACT:
In a method of tracing a well drilling mud by determining the concentration of a tracer ion in samples of filtrate from a drilling mud which contains a predetermined concentration of the tracer ion, the improvement wherein the tracer ion is the acetate ion and is present in the drilling mud in a concentration of about 1.10.sup.-3 to about 5.10.sup.-2 ions per liter.
REFERENCES:
patent: 2207348 (1940-07-01), Jones et al.
patent: 2552775 (1951-03-01), Fischer et al.
patent: 2868625 (1959-01-01), Frank
patent: 4168746 (1979-09-01), Sheely
No affiliations
Compagnie Francaise des Petroles
Guynn Herbert B.
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