Instituto Mexicano Del Petroleo

Jessica Valeria Fuentes Santiago

Gerardo Zavala Olivares

Edgar Benedicto Zamora Guerrero

Flavio Salvador Vazquez Moreno

Fernando Alvarez Ramirez

Cesar Andres Flores Sandoval

Enrique Cevada Maya

Erika Gomez Buendia

Citlally Janinne Vargas Martinez

Alfonso Lopez Ortega

Flavio Salvador Vázquez Moreno

Fernando Alvarez Ramírez

César Andrés Flores Sandoval

Citlally Janinne Vargas Martínez

Erika Gómez Buendía

The present disclosure belongs to the field of chemical products for petroleum conditioning, in particular demulsifying agents. This disclosure concerns the application of terpolymers based on combinations of alkyl acrylates, aminoalkyl acrylates, and alkoxyalkyl acrylates, to destabilize water-in-oil (W/O) emulsions, in order to remove the emulsified water and salts dissolved in it, specifically, in the triphasic separation units for crude oils with API densities from 8 to 40° API.

Alkylated, aminated and alkoxylated macromolecules with integrated trifunctional properties for the removal of petroleum emulsions

The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}≤0.009 kg·L·min), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.

Highly random addition bypolymers for destabilization of complex emulsions in crude oil blends

The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}≤0.009 kgL·L·min), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.

The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}&#x2264;0.009 kg&#xb7;L&#xb7;min), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75&#xb0; C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.

Disclosed are chemical products useful for crude oil conditioning, particularly to demulsifying basic compounds. Disclosed are PEO-PPO-PEOtriblock bipolymers, with amphoteric groups, &#x3b2;-amino acid derivatives, at the chain ends, which destabilize water-in-crude oil (W/O) emulsions, thereby removing emulsified water and salts dissolved salts in the aforementioned phase.

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Mexico City, Mexico

Jessica Valeria Fuentes Santiago