Fluorescent dye oil tracer compositions
View Patent ↗A composition includes a functionalized fluorescent dye. The functionalized fluorescent dye includes an isothiocyanate-containing compound functionalized with a functional group. The functional group includes a primary amine. The functionalized fluorescent dye can be mixed with a fluid to form a tracer fluid for tracing fluid flow in a subterranean formation.
1. A composition comprising:
a functionalized fluorescent dye, wherein the functionalized fluorescent dye comprises an isothiocyanate-containing compound functionalized with a functional group comprising a primary amine, wherein:
the isothiocyanate-containing compound is ethyl isothiocyanate, and the functional group is 1-aminofluorene; or
the isothiocyanate-containing compound is decyl isothiocyanate, and the functional group is 9-aminoacridine.
2. The composition of claim 1 , wherein the isothiocyanate-containing compound is ethyl isothiocyanate, and the functional group is 1-aminofluorene.
3. The composition of claim 1 , wherein the isothiocyanate-containing compound is decyl isothiocyanate, and the functional group is 9-aminoacridine.