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US 8,912,256 B2Granted
Swellable material using soy spent flakes
AssigneeWeatherford/Lamb, Inc.
InventorWilliam David Breach
Life of this patent
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Abstract
A hybrid swellable material employs an oleophilic elastomer as a matrix admixed with an organic material derived from soy that is water swellable in brine, as well as fresh water. Various downhole tools may be made using this hybrid swellable material.
Claims10
An elastomer comprising:
- a base polymer;
- about 10 phr sodium formate;
- soy spent flakes;
- and
- a curative,
- wherein the elastomer is swellable responsive to contact with brine.
3 more elements
Dependencies are inferred from the claim text.