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N-Dril LO |
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N-DRIL LO, modified cellulosic polymer, provides filtration control in water-based drilling fluids. Because of its molecular weight, it provides effective filtrate control and only small increases in mud viscosity with normal use. N-DRIL LO is recommended for use in wells where bottomhole temperatures do not exceed 250'F (121'C). N-DRIL LO is not affected by the presence of calcium or magnesium at moderate pH levels because of its nonionic character. *Applications/Functions: N-DRIL LO can be used to provide filtration control under static and dynamic conditions. *Advantages: Tolerates calcium or magnesium at low-to-moderate pH levels because it is nonionic, Provides stable filtration control in sea water N-DRIL LO systems while drilling cement, Effective in small concentrations for filtration control |
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Appearance: White powder pH (2% aqueous solution): 6.5 Specific gravity: 1.4 |
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