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

Table 1

The status of each working parameter in the process of loading the drill pipe.

Subprocess	Feed pressure	Feedback pressure	Flushing pressure	Back movement	Move forward	Drill rotation	Electric hoist rotation	Bit displacement
Lower sling	0	0	0	0	0	0	0	0
						1
Connect the drill pipe	0	0	0	0	0	0	0	0
						1
Lift the drill pipe	0	0	0	0	0	0	0	0
						1	1
Lower the drill pipe	0	0	0	0	0	0	0	0
						1
Connect cable	0	0	0	0	0	0	0	0
Tighten the chuck	0	0	0	0	0	0	0	0
						1	1
Stop the drill pipe	0	0	0	0	0	0	0	0