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Totalenergies Onetech

Nicolas Passade-Boupat

Frédéric Tort

Stéphane Jouenne

Guillaume Heurteux

Carlos Quintero

Marianna Rondon

Use of at least one compound of formula (I): (I) [P(R—Y—R)]zXz- is described for enhancing the injectivity of an injection well, wherein: Y is chosen from an oxygen atom or an NH group; Ris a linear or branched alkyl radical having from 1 to 15 carbon atoms; Ris chosen from a hydrogen atom or a linear or branched alkyl radical having from 1 to 14 carbon atoms; Xz- is a monovalent anion or a divalent anion, or a trivalent anion, or a tetravalent anion group; z is a number from 1 to 4. The compound of formula (I) is added to an aqueous medium to form an injection stream which is injected into a subterranean formation which comprises at least one polymer, via said injection well.

Composition for enhancing injectivity of a subterranean formation

Use of an alkylphenol-aldehyde resin modified by at least one alkylamine in a composition of crude oils or in a product derived from a composition of crude oils as dispersing additive for asphaltenes. Process for the treatment of a composition of crude oils or a derived product which makes it possible to prevent the precipitation of asphaltenes, in particular in crude oils and the products which result therefrom by refining and/or extraction processes. Bituminous compositions including an alkylphenol-aldehyde resin modified by at least one alkylamine.

Dispersing additive for asphaltenes and its uses

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Idron, France

Nicolas Passade-Boupat