It is a powder form of specially formulated surfactants with oxidised asphalt. It is a powder having high softening point asphalt and finally powdered to fine mesh.
Application
It has a vast usage in oil field application for cementing in oil base muds.
COMMON NAME – OXIDISED ASPHALT
Advantages
It stabilizes shale formation while reducing torque & drag.
Controls HTHP fluid loss by producing a thing strong compressible wall cake.