COMPOSITION WITH PROPERTIES FOR MODIFYING THE WETTABILITY AND VISCOSITY AGENTS FOR IMPROVING THE PROCESS FOR RECOVERING HYDROCARBONS IN RESERVOIRS WITH A HIGH TEMPERATURE AND SALINITY

The present invention consists in the development of novel compositions with properties for modifying the wettability and viscosity agents for improving the process for recovering oil applied in carbonated or sandstone reservoirs, and in the presence of brines with a high content of divalent ions su...

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Hauptverfasser: ERICK EMANUEL LUNA ROJERO, ARMANDO PINEDA MUÑOZ, LUIS SILVESTRE ZAMUDIO RIVERA., CECILIA DE LOS ÁNGELES DURÁN VALENCIA, DAVID AARÓN NIETO ÁLVAREZ, JOSÉ MANUEL MARTÍNEZ MAGADÁN, ARISTEO ESTRADA BUENDÍA, RAÚL HERNÁNDEZ ALTAMIRANO, ENRIQUE SERRANO SALDAÑA
Format: Patent
Sprache:eng ; spa
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Zusammenfassung:The present invention consists in the development of novel compositions with properties for modifying the wettability and viscosity agents for improving the process for recovering oil applied in carbonated or sandstone reservoirs, and in the presence of brines with a high content of divalent ions such as calcium, magnesium, strontium and barium, at a high temperature. The novel compositions have supra molecular complexes derived from the interaction of copolymers of the poly (acrylamide-co-2- acrylamido-2-methyl-1-sodium propanesulfonate) type with zwitterionic liquids of the type of Gemini surfactants based on bisû(N-alkyl polyether or N-alkenyl polyether or N-aryl polyether)-beta amino acids, which use distilled water as a vehicle or solvent, as well as brines with a high content of dissolved total solids and divalent ions and/or compounds of the organic type such as alcohols and are characterized in that they form supra molecular capsules able to lead, in a controlled manner to low permeability zones in naturally fractured reservoirs, the zwitterionic liquids of the type of Gemini surfactants based on bisû(N-alkyl polyether or N-alkenyl polyether or N-aryl polyether)-beta amino acids. Esta invención consiste en el desarrollo de nuevas composiciones con propiedades modificadoras de la mojabilidad y viscosificantes para procesos de recuperación mejorada de petróleo aplicables en yacimientos de tipo, carbonatados o de areniscas, y en presencia de salmueras con alto contenido de iones divalentes como calcio, magnesio, estroncio y bario, a alta temperatura. Las nuevas composiciones constan de complejos supramoleculares derivados de la interacción de copolímeros del tipo poli(acrilamida-co-2-acrila mido-2-metil-1-propanosulfonato de sodio) con líquidos zwitterionicos del tipo surfactantes geminales base bis-(N-alquilpolieter o N-alquenilpolieter o N-arilpolieter)-beta aminoácidos, utilizan como vehículo o disolvente agua destilada, salmueras con un alto contenido de sólidos totales disueltos y iones divalentes y/o compuestos de tipo orgánico tales como alcoholes y se caracterizan por el hecho de formar capsulas supramoleculares que tienen la capacidad de dirigir de manera controlada a zonas de bajas permeabilidades en yacimientos naturalmente fracturados a líquidos zwitteriónicos del tipo surfactantes geminales base bis-(N-alquilpolieter o N-alquenilpolieter o N-arilpolieter)-beta aminoácidos.