Stable Dispersed MoS₂ Nanosheets in Liquid Lubricant with Enhanced Rate of Penetration for Directional Well

Table 4

Average rate of penetration of experimental well and contrasted wells.

Well number	Type of lubricant	The dosage of lubricant (T)	Average drilling velocity (m/h)	Average ROP (m/h)	Increasing rate of ROP (%)
Xu 50	JS-LUB	3.0	15.04	10.03
Xu 47A	KD-21C	1.8	12.22	6.56	52.9
	KD-51	1.0
	Base olefin	0.5
Xu X48	KD-51	2.5	12.57	4.20	139

Average rate of penetration in downhole section with the borehole curvature over 30°.