Table 4: Results of sealing ability evaluation of removable plugging slurry KJD155.

Leakage medium	Pressure time (min)	Room temperature		120 °C		155 °C
		Pressure (MPa)	Leakage (mL)	Pressure (MPa)	Leakage (mL)	Pressure (MPa)	Leakage (mL)
1mm Crack block	3	0	0	0	0	0	0
	3	0.5	0	0.5	0	0.5	0
	3	1	0	1	0	1	0.6
	3	2	0	2	0	2	0.4
	3	3	0	3	0	3	1.2
	3	4	0	4	0	4	1.6
	3	5	0	5	0	5	3.0
2mm Crack block	3	0	0	0	0	0	0
	3	0.5	1.2	0.5	1.6	0.5	2.8
	3	1	0.1	1	0.2	1	2.5
	3	2	0.2	2	0.2	2	0.8
	3	3	0.2	3	0.3	3	1.4
	3	4	0	4	0	4	1.6
	3	5	0.1	5	0.2	5	0.8
3mm Crack block	3	0	0	0	0	0	0.5
	3	0.5	0.2	0.5	0.3	0.5	1.5
	3	1	0.1	1	0.1	1	1.2
	3	2	0	2	0	2	0.5
	3	3	0.2	3	0.3	3	0.8
	3	4	0.1	4	0.2	4	1.6
	3	5	0.1	5	0.1	5	1.2
4mm Crack block	3	0	0	0	0	0	0
	3	0.5	0.2	0.5	0.3	0.5	1.4
	3	1	0.2	1	0.1	1	0.8
	3	2	0.1	2	0.2	2	0.6
	3	3	0	3	0.1	3	0.8
	3	4	0	4	0	4	1.2
	3	5	0	5	0.1	5	1.5