Removal of Hematite Water-Based Filter Cake Using Hydrochloric Acid

Table 2

Drilling fluid properties at 120°F and atmospheric pressure.

Properties	Values
	230.30
	152.10
	120.50
	80.70
	21.90
	19.40
Gel Str. 10 sec, lb/100 ft^2	19.00
Gel Str. 10 min, lb/100 ft^2	54.00
Gel str. 30 min, lb/100 ft^2	72.00
Apparent viscosity	115.15
Plastic viscosity	78.20
Yp, lb/100 ft^2	73.90
pH	10.53
Density, ppg	16.30

is the shear stress at rpm.