TRACER FLUIDS WITH MEMORY EFFECT FOR THE STUDY OF A PETROLEUM FACILITY

摘要

The field of this invention is that of the exploration and exploitation of oil deposits. More specifically, this invention relates to the development of nanoparticles and tracer fluids containing them, intended to be injected into a well, and collected by inversion of the fluid flow by the same well. The tracer fluids according to the invention have the advantage of producing a fluorescent signal with a memory effect, that is to say a signal modified according to the physicochemical conditions encountered in the medium traversed by the nanoparticles after injection into the subsoil. geological. The analysis of the fluorescent signals in the fluids collected after diffusion makes it possible to deduce information on the characteristics of the oil reservoir.