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. 17, 2003
Filed:
Mar. 02, 2001
Applicant:
Inventors:
Maria Alejandra Jimenez, La Sierroi Torrets F, VE;
Luis Carlos Genolet, Custequst, VE;
Juan Carlos Chavez, La Sierroi Torrets F, VE;
Douglas Espin, Canacas, VE;
Assignee:
Intevep S.A., Caracas, VE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 7/00 ;
U.S. Cl.
CPC ...
C09K 7/00 ;
Abstract
A method for treating a drilling fluid is provided, which method includes the steps of providing a drilling fluid, providing a drilling fluid additive in the form of superparamagnetic nanoparticles, mixing the drilling fluid additive with the drilling fluid so as to provide a treated drilling fluid, and exposing the treated drilling fluid to a magnetic field so as to recover the superparamagnetic nanoparticles.