Patent ID: 11879088
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 0:
1. A method comprising:
providing a base fluid having a first viscosity, wherein the base fluid is an oil-based fluid; and
reducing the first viscosity of the base fluid to a second viscosity of the base fluid for a time duration by adding at least one thinning additive to the base fluid,
wherein the at least one thinning additive is a reaction product of a first reactant and a second reactant,
the reaction product comprising at least one cleavable ester bond,
the first reactant comprising at least one alcohol, at least one alcohol ethoxylate, or at least one combination thereof, wherein the at least one alcohol is at least one of oleyl alcohol, 2-ethylhexyl alcohol, 2-ethylhexyl cellosolve, 2-ethylhexyl carbitol, hexyl cellosolve, linear alcohol, branched alcohol, Fisher-Tropsch alcohol, or Guerbet alcohol, and wherein the at least one alcohol ethoxylate is at least one of oleyl alcohol having 2 ethoxy units, oleyl alcohol having 3 ethoxy units, benzyl alcohol having 2 ethoxy units, or benzyl alcohol having 4 ethoxy units, and
the second reactant comprising at least one anhydride.