S.p.c.m. Sa

Snf S.a.s.

Nicolas Gaillard

Cédrick Favero

Bruno Giovannetti

Cedrick Favero

Morgan Tizzotti

Dennis Marroni

Frédéric Poncet

Frederic Poncet

Cédric Favero

Cedric Favero

The present invention refers to the use of anionic water-soluble polymers being partially or totally neutralized with an organic counter-ion for oil filed application, especially tertiary oil recovery steps.

Polymers for enhanced hydrocarbon recovery

Composition based on anionic polymers or water-soluble amphoteric (co)polymers suitable for viscosifying the injection fluids for oil recovery, characterized in that, before dilution with the injection fluid, it further contains at least 3 stabilizing agents selected from the group comprising oxygen reducing agents, precipitating agents, free radical scavengers, complexing agents and sacrificial agents, the said stabilizing agent being suitable for preventing the chemical degradation of the polymer once the polymer is introduced into the injection fluid.

Formulations of water-soluble polymers and stabilizing additives for injecting a single compound useable in injection fluids for chemical enhanced oil recovery

Method for recovering bitumen from tar sands, according to which sands are brought into contact with at least one partially hydrolyzed poly(vinyl acetate) (co)polymer A.

Method for recovering bitumen from tar sands

Fracturing fluid comprising, in solution in water, a proppant and an associative amphoteric polymer, the said polymer having a molecular weight of at least 1 000 000 g/mol and comprising:

Aqueous fracturing fluid composition and fracturing process using the composition

Water-soluble polymers for oil recovery

Provided is a method for treating sludge from the mining or mineral industry, including before above-ground spreading, contacting the sludge with a flocculating agent that is a water-soluble, organic polymer having a molecular weight of from 5,000,000 to 25,000,000 g/mol and an anionicity of from 10 to 40 mol %, to produce contacted sludge, wherein the water-soluble organic polymer includes at least one anionic monomer having a carboxylic function or having a sulfonic acid function, at least one non-ionic monomer, and optionally one or more cationic monomers, where the flocculating agent is branched, and has from 0.02 to 2 mol % hydrophobic monomers.

Method for treating mineral sludge above ground using polymers

High molecular weight associative amphoteric polymers for increasing the viscosity of aqueous solutions, comprise: at lease one cationic monomer derived from acrylamide bearing at least one hydrophobic chain of 8 to 30 carbon atoms; 1 to 99.9 mole % of at least one anionic monomer; and 1 to 99 mole % of one or several non-ionic water-soluble monomers. Aqueous solutions containing said polymers find uses in industry, in particular the oil, paper, water treatment, mining, cosmetics, textile, detergency industries and generally in all industrial techniques using thickened solutions.

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Saint Etienne, France

Nicolas Gaillard