A process for recovering hydrocarbonaceous fluids from a formation having a substantially low pH where a rehealable gel prepared ex-situ is used to close off a zone of greater permeability. Said gel is obtained by mixing into an aqueous medium sufficient biopolymer amounts of a Xanthan or Alcaligene...http://www.google.es/patents/US4793416?utm_source=gb-gplus-sharePatente US4793416 - Organic crosslinking of polymers for CO2 flooding profile control
Organic crosslinking of polymers for CO2 flooding profile control
