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. 09, 2011
Filed:
Feb. 06, 2009
Dilip K. DE, Stephens City, VA (US);
William S. Butterfield, Stephens City, VA (US);
Dilip K. De, Stephens City, VA (US);
William S. Butterfield, Stephens City, VA (US);
Stowe Woodward, LLC, Middletown, VA (US);
Abstract
A composition suitable for use in a packer element for a wellbore includes: a hydrocarbon-swellable polymer, the hydrocarbon-swellable polymer present in the composition in an amount between about 10 and 30 percent by weight; an oil-resistant polymer, the oil-resistant polymer present in the composition in an amount between about 10 and 30 percent by weight; and a hydrocarbon swelling agent, the hydrocarbon swelling agent present in the composition in an amount between about 15 and 60 percent by weight. A composition as described may have a good balance of the swelling properties of the hydrocarbon-swellable polymer and the mechanical properties of the oil-resistant polymer. These properties may be useful in a packer element for a wellbore.