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

Table 5

Analysis of the slurry deposition thickness in the 50 mm diameter pipe.

Factor	Water-cement ratio (W/C)	Hydrodynamic velocity (m·s^−1)	Injection pressure (MPa)
K1	70	77	59
K2	56	56	61
K3	54	50	63
k1	23.3	25.3	19.7
k2	18.7	18.3	20.3
k3	18	16.3	21
Range	5.3	9	1.3
Primary and secondary factor	Hydrodynamic velocity > water-cement ratio > injection pressure