Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 3, 2018
Patent Application Number
14631946
Date Filed
February 26, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A self-suspending proppant comprises a proppant particle substrate carrying a coating of an anionic hydrogel-forming polymer. The detrimental effect of calcium and other divalent ions on the ability of the proppant to swell when contacted with water is reduced by including a calcium binding agent in the proppant.
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