Brookfield DV3T Rheometer Uživatelský manuál stáhnout pdf (Strana 88)

Brookeld Engineering Labs., Inc. Page 88 Manual No. M13-2100

An Example of the Bingham Model at Work

A manufacturer of drilling uid applies the

Bingham Model to ensure the quality of their

product. Results from a recent batch, shown

in Figure VII-3, showed that the yield stress

and plastic viscosity were both below the

pass/fail criteria, which would cause the uid

to insuciently hold-up the cuttings. The

shipment was cancelled and the root-cause

of the problem was identied.

Drilling Fluid

Plastic Viscosity (

h) = 6621 cP

Yield Stress (τ

) = 166.4 dynes/cm

1 2 ... 83 84 85 86 87 88 89 90 91 92 93 ... 124 125

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Brookfield DV3T Rheometer Uživatelský manuál Strana 88