WS 40 is a wax and asphaltene solvent which is specifically formulated for a particular problem or well site. The blend can be any combination of
aliphatic, naphthenic and aromatic solvents. Additives to the solvent may include wax and asphaltene dispersants, wax
crystal modifiers, emulsion breakers, water wetting agents and surfactants. WS 40 is blended site-specific in instances
where other solvents perform poorly. Typically, this includes the removal of high melting point waxes resulting from repeated hot oil treatments and the removal of sludges and
emulsions formed by acidizing or other mechanisms
WS 40 is an effective means to remove and control wax and asphaltene problems. It can be used in a number of applications:
The placement technique for WS 40 will depend on the type of well and severity of the deposit. However, WS 40 is normally allowed to soak in the formation and wellbore for 24 to 48 hours.