It is a kind of high efficient clay expansion inhibitor, which is developed for formation clogging of stratum clay expansion. It is the purpose of preventing clay expansion and reducing reservoir damage by exchanging the polymer ion and inhibiting the diffusion double layer effect of clay.

Alias: Clay inhibitors

Specification: 

Appearance: white or light yellow powder

PH value : 8.5-7.5

Solid content (Solids/%) ：95±2

Ion type: cationic copolymers

Features: 

high temperature, shear resistance. Not sensitive to pH value. It can be soluble in water in any ratio.

Uses and advantages: 

as anti swelling agent, anti swelling rate ≥ 90%, the dosage of 1-3%.