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Foamed cement compositions comprising oil-swellable particles

  • US 8,030,253 B2
  • Filed: 08/20/2009
  • Issued: 10/04/2011
  • Est. Priority Date: 09/09/2005
  • Status: Active Grant
First Claim
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1. A foamed cement composition comprising:

  • a cementitious component,an oil-swellable particle comprising at least one swellable elastomer selected from the group consisting of acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, chloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene block copolymer, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene vinyl acetate copolymer, fluorosilicone rubber, silicone rubber, and combinations thereof,a foaming and stabilizing surfactant,a gas, andwater.

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