Lignite resin (SPNH)

　　Lignite resin SPNH is a copolymer containing multiple functional groups such as hydroxyl,carbonyl,methylene,sulfonic,carboxyl,and nitrile,which is mainly made from lignite and acrylic waste fibers through grafting copolymerization and sulfonation methods.

　　Performance purposes

　　Lignite resin SPNH mainly plays a role in reducing filtration loss,but also has a certain degree of viscosity reduction.Having good resistance to temperature,salt,and calcium,it plays an important role in consolidating wellbore walls,preventing collapse,and preventing blockages.Suggest adding 1-5%.

　　Packaging and storage

　　This product is packaged in"three in one"bags,lined with polyethylene film bags,with a net weight of 25kg per bag;

　　Store in a cool,dry,and ventilated place;

　　In storage and transportation,due to its water solubility,it should not be unpacked and moisture should not affect its use.