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Organosilicon polymer having nonrandom crosslinkages useful in enhanced oil recovery using carbon dioxide flooding

  • US 5,102,560 A
  • Filed: 11/20/1990
  • Issued: 04/07/1992
  • Est. Priority Date: 04/07/1989
  • Status: Expired due to Fees
First Claim
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1. A composition comprising a solution of carbon dioxide, a cosolvent, and a polymer,(a) wherein said polymer comprises an organosilicon double-chain polymer having nonrandom crosslinkages that enhance backbone rigidity and(b) wherein said cosolvent is selected from the group consisting of:

  • (1) alcohols having from 1 to 8 carbon atoms,(2) aromatics having a single ring and from 6 to 10 carbon atoms,(3) ketones having from 3 to 10 carbon atoms,(4) carboxylic acid esters where the carboxylic acid portion has from 2 to 4 carbon atoms and the ester portion has from 1 to 10 carbon atoms, and(5) hydrocarbons having from 3 to 20 carbon atoms.

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