C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
31/26
C08L 5/00 (2006.01) C08B 37/00 (2006.01) C09K 8/90 (2006.01)
Patent
CA 1251628
ABSTRACT 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 A process for the degradation with acid of a viscous microbial polysaccharide formulation which is applied in oil and/or gas reservoir operations, wherein the polysaccharide formulation contains an amount of a salt or a salt mixture which is sufficient to adjust the transition temperature of the polysaccharide such that it is close to the reservoir operating temperature. A process for the preparation of an acid degradable polysaccharide formulation and a polysaccharide formulation.
493197
Pedley Jeffrey B.
Sturla Phillip L.
Van Zanten Marinus
Shell Canada Limited
Smart & Biggar
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