Drill rigs in deep water well drilling process plays a key role, at the time of use, operators should pay attention to the bit drilling use, allow the bit to better jobs, need to pay attention to these aspects:

1, after the end of the drill bit in deep drilling, require timely replacement of Center drilling, hole cleaning at the end of the first is the need, and then blow clean the residue.

2, bit of a drilling process, also need to carefully observe the follow up of casing, timely understanding of specific situations within the hole.

3, hole-bottom sometimes; leave more residue, eccentric bit rotating parts are jammed and affect their gathering of rock slag, this time on the need to transport gas, to cleaning the hole again.

Above is the deepest drill bit in the production notes, if you have any questions, please feel free to inquire.