Study on the Surge-Swab Pressure considering the Effect of the Cutting Plug in Shale Drilling

Table 2

Input data of the model.

Parameter	Value	Unit
Outer diameter of the pipes	137.9	mm
Inner diameter of the pipes	118.6	mm
Diameter of the casing section	224.41	mm
Diameter of the open-hole section	215.9	mm
Drilling fluid density	1500	Kg/m^3
Consistency coefficient	0.75	Pa·m^n
Liquidity index	0.67	—
Tripping out/in velocity	0.65	m/s
Clinging constant in casing section	0.418	—
Clinging constant in open-hole section	0.426	—
Porosity	0.36	—
Cutting particle diameter	3	mm
Measured depth of the cutting bridge	2500	m
Length of the cutting bridge	1	m