Chemistry: physical processes – Physical processes – Crystallization
Patent
1981-01-06
1982-10-05
Schor, Kenneth M.
Chemistry: physical processes
Physical processes
Crystallization
166250, 166254, 175 42, 175 65, G01N 3324
Patent
active
043526748
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: 2387513 (1945-10-01), Hocott
patent: 2868625 (1959-01-01), Frank
patent: 3623842 (1971-11-01), Deans
patent: 3843524 (1974-10-01), Perricone et al.
patent: 4168746 (1979-09-01), Sheely
patent: 4264329 (1981-04-01), Beckett
Compagnie Francaise des Petroles
Schor Kenneth M.
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