Mathematical Modeling Applied to Drilling Engineering: An Application of Bourgoyne and Young ROP Model to a Presalt Case Study

Table 2

Drillability coefficients [4, 7].

	Lower boundary [unitless]	Upper boundary [unitless]
	0.5	1.9
	0.000001	0.0005
	0.000001	0.0009
	0.000001	0.0001
	0.5	2.0
	04	1.0
	0.3	1.5
	0.3	0.6