Compositions and methods for treating a water blocked well

Compositions and methods for treating a water blocked well

  • CN 101,835,956 B
  • Filed: 12/30/2007
  • Issued: 07/01/2015
  • Est. Priority Date: 03/23/2007
  • Status: Active Grant
First Claim
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1. a process has the method on the hydrocarbonaceous chip stratum of non-protogenous water, the method comprises to be made described hydrocarbonaceous chip stratum and comprises the composition of solvent with nonionic fiuorinated polymeric surfactant and contact, and wherein said nonionic fiuorinated polymeric surfactant comprises:

  • At least one is by the divalent unit of represented by formula;

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