Cement Slurry Plugging Law and Optimal Plugging Flow Rate at a High Hydraulic Gradient

Table 4

Analysis of the slurry deposition thickness in the 70 mm diameter pipe.

Factor	Water-cement ratio (W/C)	Hydrodynamic velocity (m·s^−1)	Injection pressure (MPa)
K1	62	64	52
K2	53	53	54
K3	47	45	56
k1	20.7	21.3	17.3
k2	17.7	17.7	18
k3	15.7	15	18.7
Range	5	6.3	1.4
Primary and secondary factor	Hydrodynamic velocity > water-cement ratio > injection pressure