How To Calculate Capacities Of Mud Tanks (Pits)

A mud tank is an open-top container, typically made of square steel tube and steel plate, to store drilling fluid on a drilling rig. They are also called mud pits. –wikipedia

Mud tanks have different types of shapes depend on clients demands, such as: rectangular, sloping ends…

There are some formulas for calculate capacities of different types of mud tanks as follow below (Dimensions in Feet).

Rectangular

Area = L x W
Cubic Feet= L x W x h
Barrels= (L x W x h)/5.61
L = Length
W = Width
h = height of mud

Sloping Ends

Note: Length is measured from bottom at one end to line from top at other end.
Cubic Feet= L x W x h
Barrels= (L x W x h)/5.61

Sloping Ends & Sides

Note: Both length and width are measured from bottom at one hand to line from top at other hand.
Cubic Feet= L x W x h
Barrels= (L x W x h)/5.61

Cylindrical, Flat Ends

Cubic Feet = .785 x D x D x h
Barrels= 0.14 x D x D x h

Cylindrical, Dished Ends

Barrels = (0.14 x D x D x L) + (0.019 x D x D)

Hexagonal

Cubic Feet = 2.6 x S x S x h
Barrels = 0.46 x S x S x h
S = Side

Octagonal

Cubic Feet = 1.73 x D x D x h
Barrels = 0.13 x D x D x h
Diagonal = D

Spherical

Cubic Feet = 0.523 x D x D x D
Barrels = 0·093 x D x D x D

Spherical, Partially Filled

Cubic Feet = 0.000303 x h x h x (3D-2h)
Barrels = 0·000054 x h x h x (3D-2h)
Gallons = 0.000227 x h x h x (3D-2h)

Well Bore

Barrels per 1000 feet is approximately equal to inches of wellbore diameter squared.

AIPU Solids Control supply different sizes of mud tank skid for drilling mud treatment. The mud tank skid may contains centrifugal pump, mixing pump, mud agitator, mud gun, mud tank, pipeline arrangement, etc.