EMULSIFIERS AND WETTING AGENTS

PDT-MUL-P

PDT-MUL-P, a blend of oxidized tall oil and polyaminated fatty acid, is the basic ingredient of PDT’s water-in-oil emulsion drilling fluids. PDT-MUL-P stabilizes emulsion, aids suspension properties, and reduces filtration. PDT-MUL-P is used with lime to produce a calcium soap emulsifier in-situ.

Applications/Functions

  • Form stable water-in-oil emulsions
  • Lower filtration rates

Advantages

  • Impart high temperature stability to oil-based fluids
  • Can be added directly to the system
  • Resists electrolyte contamination

PDT-MUL-S

PDT-MUL-S, polyaminated fatty acid, can be used to emulsify water into oil in oil-based drilling fluids. It is used to improve a drilling fluid’s oil-wetting characteristics and is designed for use in oil-based fluids that contain high levels of divalent salts (i.e CaCl , MgCl ) in the fluid’s water phase. PDT-MUL-S is the primary emulsifier in the OBM systems. When PDT-MUL-S is used with PDT-MUL-P, it aids in producing a stable invert emulsion system with low filtration rates.

Applications/Functions

  • Promote oil-wetting in invert emulsion systems
  • Improve electrical stability measurements

Advantages

  • Effective in small concentrations
  • Can be added directly to the system
  • Thermally stable at temperatures greater than 500_F (260_C)
  • Compatible with other oil-based mud additives