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Viscosity coefficient of OBM mud cake with different weighting agents.
| viscosity coefficient |
||||
|---|---|---|---|---|
| dosage (g) | standard barite | submicron barite | superfine manganese ore | compound (1 : 1) |
| 200 | 0.1495 | 0.0699 | 0.0612 | 0.0524 |
| 400 | 0.1673 | 0.0437 | 0.0524 | 0.0524 |
| 600 | 0.1944 | 0.2217 | 0.1944 | 0.0612 |
