US 12,188,350 B2
Fluorescent dye oil tracer compositions
Wei Wang, Quincy, MA (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jun. 8, 2022, as Appl. No. 17/835,676.
Prior Publication US 2023/0399942 A1, Dec. 14, 2023
Int. Cl. E21B 47/11 (2012.01); C09B 6/00 (2006.01); C09B 57/00 (2006.01); C09B 57/08 (2006.01); C09K 8/035 (2006.01); C09K 8/62 (2006.01); C09K 11/06 (2006.01)
CPC E21B 47/11 (2020.05) [C09B 6/00 (2013.01); C09B 57/001 (2013.01); C09B 57/08 (2013.01); C09K 8/035 (2013.01); C09K 8/62 (2013.01); C09K 11/06 (2013.01); C09K 2211/1011 (2013.01)] 3 Claims
OG exemplary drawing
 
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.