Centre National De La Recherche Scientifique

Total Sa

Universite Claude Bernard – Lyon1

Universite Lyon 1

Inoventeam

Totalenergies Onetech

Centre National De La Recherche Scientifique-cnrs

Matteo Martini

Olivier Tillement

Annie Commarieu

Antoine Vanlaer

Christian Hurtevent

Stéphane Jouenne

Arthur Marais

Salima Baraka-Lokmane

John-Richard Ordonez-Varela

Pascal Perriat

Fabien Rossetti

Cédric Louis

François Ghillebaert

Mahmoud Ould-Metidji

Thomas Brichart

Florian Lepoivre

Fabrice Aubertin

Anatole Collet

Nicolas Crowther

Francois Ghillebaert

The use, as markers of petroleum products, crude oils, biofuels or lubricants, of rare earth complexes or one of the constituents thereof chosen from rare earth ligands or salts, being capable of forming a rare earth complex after the addition of a developing solution. Preferably, the rare earth complex can be detected by time-resolved fluorescence. Also, a marking method and a method for detecting a rare earth complex as a marker of petroleum products, crude oils, biofuels or lubricants.

Use of rare earth complexes as markers of petroleum products, crude oils, biofuels or lubricants

A method for adjusting, to a pre-determined value, the level of a mineral deposition or corrosion inhibitor injected into a gas or oil well. Using of the time-resolved fluorescence method for detecting and quantifying a mineral deposition or corrosion inhibitor in a fluid from an oil or gas production well.

Method for adjusting the level of inhibitors in an oil or gas well

The present invention relates to the development of tracer fluids, more generally, that of aqueous liquids, intended to be injected under pressure in an oil reservoir, for example from an injection well up to a production well. The object of the invention is to propose a new method of study of a solid medium, i.e. an oil reservoir, by diffusion of a liquid (i.e. injection waters) containing tracers, through said solid medium, which is simple to implement and economical and which remedies the drawbacks of the known tracers for injection waters of oil reservoirs. This method essentially consisting of injecting, in this solid medium, an injection liquid comprising a nanoparticle-based tracer having average dimensions comprised between 20 and 200 nm, detectable by means of one or several S signals at dilutions of less than or equal to 10, adapted to form a stable colloidal suspension in a saline medium, at least a portion of which is constituted of a core and a coating provided with an adjustable hydrophilic-lipophilic balance (HLB) and comprising at least one organic and/or organosilicon component; recovering the liquid having diffused; and analyzing this liquid having diffused to measure the quantity of tracer by detection of the signal or signals S.

Use of nanoparticles for labelling oil field injection waters

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Villars les Dombes, France

Matteo Martini