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:
May. 22, 2007
Filed:
Feb. 27, 2003
Frank Zamora, Duncan, OK (US);
Larry S. Eoff, Duncan, OK (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
B. Raghava Reddy, Duncan, OK (US);
Frank Zamora, Duncan, OK (US);
Larry S. Eoff, Duncan, OK (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
B. Raghava Reddy, Duncan, OK (US);
Halliburton Energy Services, Inc., Duncan, OK (US);
Abstract
A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a method is provided for producing a water soluble polymer formed from a hydrophilic monomer for use as a relative permeability modifying polymer.