Emulsifying agent is emulsifier.It can be applied to oil-based mud drilling fluids.Primary Emulsifier and Secondary Emusifier.serves as a primary emulsifier in oil-base mud systems. It is formulated to give good

emulsification, improved thermal stability of the invert emulsion, and enhanced high-temperature,

high-pressure (HTHP) filtration control. Through comprehensive tests in a number of oil-base mud

formulations with various base oils, mud densities, oil/water ratios and hot-rolling temperatures, it proves that at working temperature up to 149oC (300oF), Emulsifying agent can maintain high ES

(electrical stability), low HTHP filtrate and desired rheological property.