Table 4. Measured Properties of the Final Drill-In Fluid Formulation.
| mud property | Unit | measured value | method/instrument of measurement |
|---|---|---|---|
| density | lbm/gal (ppg) | 10 | mud balance |
| viscosity | s/quart | 46 | Marsh funnel |
| yield point | lbf/100 ft2 | 23 | Fann viscometer |
| plastic viscosity | Cps | 18 | Fann viscometer |
| 10 s gel strength | lb/f100 sq ft | 4 | Fann viscometer |
| 10 min gel strength | lbf/100 sq ft | 15 | Fann viscometer |
| filter loss | cm3/30 min/100 psi | 5 | API Filter Press |