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:
Aug. 25, 2009
Filed:
Jul. 17, 2007
David E. Mcmechan, Duncan, OK (US);
Rob E. Hanes, Jr., Austin, TX (US);
Ian D. Robb, Duncan, OK (US);
Thomas D. Welton, Duncan, OK (US);
Karen L. King, Duncan, OK (US);
Bobby J. King, Duncan, OK (US);
Jiten Chatterji, Duncan, OK (US);
David E. McMechan, Duncan, OK (US);
Rob E. Hanes, Jr., Austin, TX (US);
Ian D. Robb, Duncan, OK (US);
Thomas D. Welton, Duncan, OK (US);
Karen L. King, Duncan, OK (US);
Bobby J. King, Duncan, OK (US);
Jiten Chatterji, Duncan, OK (US);
Halliburton Energy Services, Inc., Duncan, OK (US);
Abstract
Embodiments relate to improving the performance of anionic friction reducing polymers in water containing multivalent ions. Exemplary embodiments relate to methods of improving the performance of anionic friction reducing polymers in a subterranean treatment, wherein the method comprises adding a complexing agent to water comprising multivalent ions. The method comprises adding the anionic friction reducing polymer to the water comprising the multivalent ions, wherein the anionic friction reducing polymer is added in an amount less than or equal to about 0.15% by weight of the water. The method comprises introducing the water comprising the multivalent ions, the complexing agent and the anionic friction reducing polymer into at least a portion of the subterranean formation such that the friction reducing polymer reduces energy loss due to turbulence in the water. The complexing agent complexes with at least a portion of the multivalent ions in the water such that the reduction of energy loss by the friction reducing polymer is improved.