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| CAT - LO |
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CAT-LO, modified cellulosic polymer, provides filtration control in CAT-I cationic water-based drilling fluids.
Because of its molecular weight, it provides good filtrate control and only small increases in mud viscosity with normal use.
CAT-LO is recommended for use in wells where bottomhole temperatures do not exceed 250'F(121'C).
CAT-LO is not affected by the presence of calcium or magnesium at moderate pH levels because of its nonionic character.
*Applications/Functions: 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 seawater CAT-I systems while drilling cement, Effective in small concentrations for filtration control, Hot-rolling tests in fresh water and various brines document the effectiveness of CAT-LO in controlling API and HPHT Filtrates. |
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Appearance: White powder
pH (2% aqueous solution): 6.5
Specific gravity: 1.4 |
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