Petroleum grade Product features:
1, high degree of substitution, good uniformity of substitution .
2, high transparency, viscosity and water loss can be controlled .
3, suitable for fresh water, sea water, saturated brine slurry .
4, stabilize soft soil structure, prevent collapse of wall of a well .
5, can improve mud-making volum, reduce filteration loss .
6, has excellent performance in drilling of oil .