performance viscosity, mPa.s

plasticity viscosity, mPa.s

filter loss, ml

fresh water slurry

basic mud

8-10

3-5

22-26

basic mud 0.2%PAC141

≥25

≥10

≦15

basic mud 0.4%PAC142

≦30

≦20

≦15

basic mud 0.2%PAC143

≥25

≥8

≦15

compound saline slurry

basic mud

4-6

2-4

52-58

basic mud 0.7%PAC141

≥15

≥10

≦10

basic mud 1.5%PAC142

≦18

≦17

≦10

basic mud 1.0%PAC143

≥13

≥8

≦10