The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2020
Filed:
Apr. 22, 2016
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Eric Lecolier, Chaville, FR;
Patrick Gateau, Maurepas, FR;
IFP ENERGIES NOUVELLES, Rueil-Malmaison, FR;
Abstract
The present invention concerns a process for developing a subterranean formation, in which at least one fluid is injected. In accordance with the invention, the fluid comprises at least one additive, the additive being labelled with at least one luminescent semiconductor nanocrystal (fluorescent or phosphorescent). In this manner, and by optical analysis of the presence of luminescent semiconductor nanocrystal in the fluid recovered from the subterranean formation, the presence and/or quantity of additive in the recovered fluid can be determined. Given that the semiconductor nanocrystal is either phosphorescent or fluorescent, the additive is rendered readily detectable and quantitatively determinable in the fluids recovered from the subterranean formation.