Instituto Mexicano Del Petroleo

Ana Patricia Medina Montiel

Norma Araceli García Muñoz

Maribel Amador Ramírez

Jetzabeth Ramírez Sabag

Alejandro Ortega Rodriguez

Raúl Oviedo Roa

Simón López Ramírez

Jetzabeth Ramirez Sabag

Cecilia De Los Ángeles Durán Valencia

Alejandro Ortega Rodríguez

Sonia Ángeles Martínez Reyes

Marco Antonio Vélez Domínguez

Nansy Mónica Sánchez Casas

Elizabeth Cervantes Flores

Agustín Durán Álvarez

José Manuel Martínez Magadán

Norma Araceli Garcia Munoz

Maribel Amador Ramirez

This disclosure relates to an organic gel formulation composition for blocking fluids in naturally fractured carbonate reservoirs, for salinity conditions up to 31,870.50 ppm of total dissolved solids and temperatures up to 120° C., that is, for the purpose temporarily isolating areas of the reservoirs, that will be treated with chemical and radioactive products to quantify the oil remaining in them, the stability of the gel is controlled in a certain period of time, through the synergic effect of the supramolecular interaction between the components of the gel formulation. A disclosed composition may include 0.3 to 1% by weight of a copolymer of acrylamide butyl tertiary of sulfonic acid and acrylamide, and 0.12 to 0.4% by weight of phenol and from 0.18 to 0.6% by weight of hexamethylenetetramine.

Composition of organic gel formulations for isolation of high temperature and salinity petroleum reservoir zones

This disclosure relates to an organic gel formulation composition for blocking fluids in naturally fractured carbonate reservoirs, for salinity conditions up to 31,870.50 ppm of total dissolved solids and temperatures up to 120&#xb0; C., that is, for the purpose temporarily isolating areas of the reservoirs, that will be treated with chemical and radioactive products to quantify the oil remaining in them, the stability of the gel is controlled in a certain period of time, through the synergic effect of the supramolecular interaction between the components of the gel formulation. A disclosed composition may include 0.3 to 1% by weight of a copolymer of acrylamide butyl tertiary of sulfonic acid and acrylamide, and 0.12 to 0.4% by weight of phenol and from 0.18 to 0.6% by weight of hexamethylenetetramine.

The present invention refers to the formulation of a foaming agent for extreme conditions of salinity, temperature and concentration of divalent ions, including the improvement in the performance in these conditions with respect to the patent MX2008015989 A. Also, the design is presented of the experimental equipment used to characterize and evaluate foaming agents at laboratory level and conditions of pressure, temperature and salinity, in oil fields. The formulation of the foaming agent derived from this invention is a mixture of sodium alpha olefin sulfonates, alkylamido propyl betaines and triethanolamine, capable of giving it the benefit of being stable in temperature and salinity in a wide range, diluted in synthetic and congenital brines. This formulation is applicable for the control of gas mobility and improved oil recovery processes in naturally fractured reservoirs.

Composition of an organic foaming additive for high temperature and high salinity

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Mexico City, Mexico

Ana Patricia Medina Montiel