The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2015
Filed:
Mar. 23, 2012
Jose Miguel Gonzalez Poche, Colinas de Carrizal, VE;
Franklin Quintero Godoy, Los Teques, VE;
Rosa Linda Marquez Silva, San Antonio de los Altos, VE;
Sergio Rosales, Los Teques, VE;
Maria Luisa Ventresca Di Filippo, Los Teques, VE;
Jose Miguel Gonzalez Poche, Colinas de Carrizal, VE;
Franklin Quintero Godoy, Los Teques, VE;
Rosa Linda Marquez Silva, San Antonio de los Altos, VE;
Sergio Rosales, Los Teques, VE;
Maria Luisa Ventresca Di Filippo, Los Teques, VE;
Intevep, S.A., Caracas, VE;
Abstract
An aqueous well completion/workover fluid, including a surfactant, at least one salt and an alkaline material, wherein the surfactant comprises a mixture of a phosphate ester and a non ionic ethoxylated alcohol, wherein the fluid has a pH between 6 and 8, and wherein the fluid generates an interfacial tension with crude oil of less than or equal to 1 dyne/cm. The fluid is not harmful to a formation if it penetrates the formation, and further exhibits an excellent detergency which can be beneficial as well.