Abstract: Additives configured to temporarily reduce viscosity in oil-based fluids are provided. The additives may be a reaction product of at least one non-ionic additive and at least one acid anhydride of maleic, succinic and/or glutaric acid. The at least one non-ionic additive may be selected from linear or branched alcohols, alcohol ethoxylates, a combination thereof, and/or a derivative thereof.

Abstract: Additives configured to temporarily reduce viscosity in oil-based fluids are provided. The additives may be a reaction product of at least one non-ionic additive and at least one acid anhydride of maleic, succinic and/or glutaric acid. The at least one non-ionic additive may be selected from linear or branched alcohols, alcohol ethoxylates, a combination thereof, and/or a derivative thereof.

Abstract: A method of operating a drilling fluid analysis system includes obtaining multiple samples of a drilling fluid at different times over a time period. The method also includes placing the multiple samples into a capillary electrophoresis device. The method further includes determining a respective concentration of a component in each of the multiple samples of the drilling fluid with the capillary electrophoresis device.

Abstract: An additive composition for improving one or more cold temperature properties in oil-based fluids is provided. One additive composition may include a first additive component selected from at least one alcohol ethoxylate, at least one amine ethoxylate, at least one ethylene oxide/propylene oxide copolymer, or a combination thereof, wherein the first additive component has an HLB ranging from about 4 to about 10. The additive composition may also include a second additive component selected from at least one alcohol, propylene glycol, at least one alcohol ethoxylate, or a combination thereof, wherein the second additive component has a total number of carbons from about 2 to about 30 carbons and a degree of ethoxylation is from zero to about 10.

Abstract: Additives configured to temporarily reduce viscosity in oil-based fluids are provided. The additives may be a reaction product of at least one non-ionic additive and at least one acid anhydride of maleic, succinic and/or glutaric acid. The at least one non-ionic additive may be selected from linear or branched alcohols, alcohol ethoxylates, a combination thereof, and/or a derivative thereof.

Abstract: An additive composition for improving one or more cold temperature properties in oil-based fluids is provided. One additive composition may include a first additive component selected from at least one alcohol ethoxylate, at least one amine ethoxylate, at least one ethylene oxide/propylene oxide copolymer, or a combination thereof, wherein the first additive component has an HLB ranging from about 4 to about 10. The additive composition may also include a second additive component selected from at least one alcohol, propylene glycol, at least one alcohol ethoxylate, or a combination thereof, wherein the second additive component has a total number of carbons from about 2 to about 30 carbons and a degree of ethoxylation is from zero to about 10.

Abstract: A wellbore fluid may include an oleaginous external phase, a non-oleaginous internal phase and a reaction product of a capping agent with a base emulfisifer, the base emulsifier being a reaction product of a fatty acid and a hydrophilic compound having at least two reactive hydrophilic functional groups, the capping agent being selected from the group consisting of a polycarboxylic acid, anhydride, urea, isocyanate, alpha-halocarboxylic acid, oxirane, cyclic diester, and cyclic sulfonate ester.