Oil-Based Drilling Fluid Plugging Method for Strengthening Wellbore Stability of Shale Gas

Table 9

Temperature resistance evaluation results of strong plugging drilling fluid.

System	Condition		AV; (mPa·s)	PV; (mPa·s)	YP; (Pa)	Gel10/Gel10; (Pa/Pa)	FLAPI; (mL)
Formula CN-5	Temperature resistance	Before aging	67.5	52	15.5	8.18/15.33	0.2
		135°C/16 h	75	60	15	3.58/23.51	0
	Temperature endurance	Before aging	67.5	52	15.5	8.18/15.33	0.2
		125°C/32 h	78	64	14	10.22/15.33	0