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Xanthomonas biopolymer for use in displacement of oil from partially depleted reservoirs

  • US 4,352,741 A
  • Filed: 06/02/1981
  • Issued: 10/05/1982
  • Est. Priority Date: 11/15/1977
  • Status: Expired due to Fees
First Claim
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1. In the process for the recovery of crude oil from an oil-bearing subterranean formation wherein a hydrophilic colloid-containing mobility control solution is injected into said formation, the improvement which comprises injecting into said formation a mobility control solution containing pyruvate-free xanthan-containing fermentation broth.

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