Rhodia Operations

Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Neptune Technology Group Inc.

Patrick Moreau

Mikel Morvan

Brigitte Bazin

Philippe Marion

Olivier Back

René Tabary

Remy Leroy

Arnaud Cadix

Marc Muller

Rémy Leroy

Philippe Godlewski

Helène Martin

Rene Tabary

The instant invention friction reducer formulation comprising friction reducer polymers such as PAM within the dispersed phase of an inverse emulsion containing a composition C which comprises a mixture of: —at least an alkanolamide emulsifier; and —a block copolymer comprising: —a hydrophilic block A comprising units deriving from a mono-alpha-ethylenically-unsaturated monomers; and —a hydrophobic block B.

Stabilized friction reducer emulsions

Compositions suitable for enhanced oil recovery comprising a) a mixture of &#x3b1;-sulfocarbonyl compounds of formulae (1) and (2) in a mixture ratio (1) to (2) of from 1:99 to 99:1 wherein R, Rand R, which may be the same or different at each occurrence, are hydrogen or a linear or branched alkyl chain having 1 to 20 carbon atoms, Rand R, which may be the same or different at each occurrence, may be a linear or branched alkyl group having 4 to 24 carbon atoms and in which the alkyl chain may comprise one or more cycloaliphatic groups, and X is H or a metal forming a salt with the sulfonate group, and b) a salt containing aqueous solution.

Formulations for enhanced oil recovery comprising sulfonates

Compositions suitable for enhanced oil recovery comprising a) a mixture of a-sulfocarbonyl compounds of formula (1) and (2) in a mixture ratio (1) to (2) of from 1:99 to 99:1 wherein R, Rand R, which may be the same or different at each occurrence, are hydrogen or a linear or branched alkyl chain having 1 to 20 carbon atoms, Rand R, which may be the same or different at each occurrence, may be a linear or branched alkyl group having 4 to 24 carbon atoms and in which the alkyl chain may comprise one or more cycloaliphatic groups, and X is H or a metal forming a salt with the sulfonate group, and b) a salt containing aqueous solution. 

The invention relates to the use of at least one compound corresponding to the formula below:R&#x2014;O&#x2014;(&#x2014;CH&#x2014;CH(&#x2014;CH)&#x2014;O&#x2014;)&#x2014;(&#x2014;CH&#x2014;CH&#x2014;O&#x2014;)&#x2014;Hin which:

Ethoxylated desorbing agents for enhanced oil recovery

The inhibition of anionic surfactant retention phenomena in an oil reservoir, especially in a carbonate-based or argillaceous reservoir, by the use of at least one compound corresponding to the formula R&#x2014;O-(A)m-H, in which R is a hydrocarbon-based group comprising from 6 to 40 carbon atoms, A is a hexose or pentose unit, and m is a non-zero number ranging from 1 to 10, is described herein.

Alkyl polyglucoside desorbents for enhanced oil recovery

Provided is a process of enhanced oil recovery from an oil reservoir of an underground formation by using a compound of formula (I) to inhibit the phenomena of retention of anionic surfactants within an oil-bearing reservoir, such as a carbonate or clay reservoir: R&#x2014;O&#x2014;(&#x2014;CH&#x2014;CH(&#x2014;CH)&#x2014;O&#x2014;)&#x2014;(&#x2014;CH&#x2014;CH&#x2014;O&#x2014;)&#x2014;H, wherein: R is a hydrocarbon-based group comprising from 6 to 40 carbons; m ranges from 0 to 20; n is greater than m and ranges from 5 to 40.

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Bordeaux, France

Patrick Moreau