Research on Formation Identification Based on Drilling Shock and Vibration Parameters and Energy Principle

Table 3

The status of each working parameter of the drill pipe connection process.

Subprocess	Feed pressure	Feedback pressure	Flushing pressure	Back movement	Move forward	Drill rotation	Electric hoist rotation	Bit displacement
Lower the drill pipe	1	0	0	0	0	0	0	1
		1		1	1
Positioning	1	0	0	1	1	0	0	0
	0	1		0	0
Connect the drill bit	0	0	0	0	0	1	1	1
						0	0