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The Model and Quantity Index Index/ SPEC HV-CMC LV-CMC PAC-HV PAC-LC
2%mpa.s 600-800 300-500 1200-1500 50-400
D.S >0.65 >0.70 >0.90 >0.96
PH 7-9 7-9 6.5-8 6.5-8
moisture content <10 <10 <10 <10
NaCL% <20 <20 <2 <2
Fineness 40mesh 40mesh 40mesh 40mesh
Surfance appearance white micro yellow white micro yellow ivory ivory
1. The mud that contains CMC is seldom effected by fungi, therefore, need not to maintain a very high PH value, need not use antiseptic, either.
2.The mud with CMC for drilling mud well-flushing liquid treatment of soluble salts, can fight the salt stain of various dissolubility.
3. The mud that contains CMC, good stability, even though the temperature's above 150°c can still reduce water loss.
High viscosity and high substitution degree CMC applies to density small mud; Low viscosity high substitution degree CMC suitable for big density of mud.
