PROCESS FOR THE DEGRADATION OF A VISCOUS MICROBIAL POLYSACCHARIDE FORMULATION, A PROCESS FOR PREPARING AN ACID DEGRADABLE POLYSACCHARIDE FORMULATION, AND A POLYSACCHARIDE FORMULATION THEREBY OBTAINED

摘要

ABSTRACTProcess for the degradation of a viscous microbialpolysaccharide formulation, a process forpreparing an acid degradable polysaccharide formulation,and a polysaccharide formulation thereby obtainedA process for the degradation with acid of a viscousmicrobial polysaccharide formulation which is applied in oiland/or gas reservoir operations, wherein the polysaccharideformulation contains an amount of a salt or a salt mixturewhich is sufficient to adjust the transition temperature of thepolysaccharide such that it is close to the reservoir operatingtemperature. A process for the preparation of an aciddegradable polysaccharide formulation and a polysaccharideformulation.