Vinyl Monomer Multipolymer, commonly known as PAC142, is a
high-efficiency anionic water-soluble polymer synthesized by
copolymerization of multiple vinyl functional monomers
including AM, AMPS and other modified monomers. With unique
molecular chain structure containing carboxyl, sulfonic acid
and cyano functional groups, the product features excellent
salt resistance, calcium-magnesium ion tolerance and stable
filtration control performance. It is a multi-functional
drilling fluid additive specially designed for fresh water,
seawater, brine and saturated salt water drilling systems,
widely used in low-solid non-dispersed polymer mud systems for
conventional and complex oilfield drilling.