... , and so on.It is specially produced as mud additive for oil drilling. Being an environment friendly and high efficiency mud additive, it ... the well-bore, prevent the damage to oil formation, and improve the efficiency of drilling, work-over and completion. Specification: ItemsSpecsResultsAppearanceCream-white ... (1% KCL, cps)> 12001640Shearing Ratio≥6.07.60 XC polymer for oil drilling