CPC C09K 8/05 (2013.01) [C09K 8/08 (2013.01); C09K 2208/12 (2013.01); C09K 2208/34 (2013.01)] | 16 Claims |
1. A wellbore fluid comprising:
an aqueous fluid;
a primary viscosifier comprising a starch derivative;
a stabilizer agent; and
a lubricant,
wherein the aqueous fluid is an inhibitive divalent fluid; further comprising a secondary viscosifier present in the wellbore fluid at a concentration from about 0.5 to about 7 kg/m3; wherein the stabilizer agent is a blend of polymeric alkaline materials wherein the wellbore fluid is a biopolymer-free fluid; and wherein the secondary viscosifier comprises a magnesium compound.
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