Extension Limit of a Straight-Swirling Mixed Jet Bit and Its Influential Factors in Radial Jet Drilling

Table 1

Test data of the high-pressure hoses.

Hose length (m)	Hose inner diameter (mm)	Flow rate (L/min)	Tested (MPa)	Calculated (MPa)	Correction factor
10	6.35	117	10.8	41.68	0.26
10	6.35	55	2.8	11.18	0.25
20	6.35	117	20.0	83.35	0.24
20	6.35	55	5.6	22.35	0.25
10	8	117	3.4	13.13	0.26
10	8	55	0.8	3.52	0.24
20	8	117	7.1	26.26	0.27
20	8	55	1.6	7.04	0.23