Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Rhodia Operations

Isabelle Henaut

Jean-Francois Argillier

Jean-François Argillier

Alain Forestiere

Bruno Delfort

Patrick Gateau

Marie-Pierre Labeau

René Tabary

Celine Bouvry

Guillaume Degre

Anne Sinquin

Yves Benoit

Jean-Philippe Heraud

Loïc Barre

Anthony Wachs

Adeline Dupas

Laurence Podesta-Foley

Antoine Benoit

Françoise Brucy

Rene Tabary

Khalil Hamdi

Rajesh Ranjan

A process treats production water resulting from enhanced oil recovery, the production water comprising an aqueous phase and an organic phase dispersed in the aqueous phase, and at least one polymer in the aqueous phase. The process includes:

Method for treating production water from the enhanced oil recovery of oil by hydrocyclone in the presence of additives of tetrakis(hydroxymethyl)phosphonium salt type

The present invention relates to a method for treating an aqueous liquid comprising oil droplets and a surfactant and/or a base. For this method, a pore size threshold of a filter is determined taking into account the interfacial tension between the oil droplets and the water, and a filter is selected whose pore size is less than or equal to this threshold for filtration of the aqueous liquid.

Method for treating an aqueous liquid by means of a filter determined as a function of the interfacial tension of the liquid

An enhanced recovery method that optimizes the stages of pumping, transport and surface treatment of the production effluent, during which a sweep fluid having at least one polymer so as to displace hydrocarbons towards a production well is injected into a reservoir, the resulting production effluent having hydrocarbons is collected through the production well, and a degradation agent for a polymer within the sweep fluid is injected into the effluent.

Optimized chemical enhanced recovery method

The invention relates to an improved enhanced recovery method using polymers, wherein these polymers are preserved from mechanical degradation by adding an additive comprising sacrificial compounds. The sacrificial compounds are preferentially degraded instead of the active polymers, thus allowing optimized recovery of the oil in the petroleum reservoir. The sacrificial compounds can be polymers of same nature as the active polymers, but of higher molecular weight, or polymers of different nature having more fragile bonds. The sacrificial compound(s) is/are selected according to a lesser resistance to mechanical degradation, in comparison with the active polymers of the solution allowing enhanced recovery.

Optimized enhanced oil recovery method with polymer preservation through sacrificial compound addition

The invention relates to an enhancing oil recovery method by injecting into a subterranean oil formation an aqueous flooding fluid comprising at least one injecting galactomannan polymer substituted by at least one sulfonation agent. The invention also relates to an flooding fluid having better injectivity properties than existing flooding fluids.

Flooding fluid and enhancing oil recovery method

Heavy crude transportation optimization method wherein at least one solvent is added to said crude. According to the method, a predetermined amount of dimethyl ether (DME) is added under pressure so as to adjust the viscosity of the crude.

Method of optimizing heavy crude transportation by incorporation under pressure of dimethyl ether

Heavy crude transportation optimization method wherein at least one solvent consisting of a petroleum cut is added to said crude. According to the method, the polar component &#x3b4;of the Hildebrand parameter of the solvent is increased, and the contribution of hydrogen bond &#x3b4;of the Hildebrand parameter of the solvent is controlled, by adding a predetermined amount of at least one specific additive.

Method of optimizing heavy crude pipeline transportation

An emulsion is optimized in that it is stabilized by the presence of a surfactant specifically selected according to the type of a polymer, or copolymer, also present in the emulsion. The surfactant and the polymer are selected oppositely charged.

Emulsion containing an oppositely-charged surfactant and polymer and the production method thereof

The invention relates to a method of estimating the flow restart conditions of a paraffinic hydrocarbon in a pipe, wherein the following stages are carried out:

Method of determining paraffinic crude flow restart conditions

The present invention relates to a stable emulsion of an immiscible fluid and of an aqueous phase having a determined pH value. The emulsion is optimized in that it comprises an ionic surfactant and a polyampholytic polymer whose charge depends on the pH value. The respective amounts of surfactant and of polymers are determined according to the charges. Stabilization or destabilization of the emulsion is adjusted by controlling the pH value. The invention also relates to a method of stabilizing and destabilizing an emulsion comprising a surfactant combined with an ampholytic polymer.

Growing community of inventors

Rueil-Malmaison, France

Isabelle Henaut