Patent ID: 11891890
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A method comprising:
receiving block position data of a rig prior to addition of a length of pipe to a drillstring, wherein the drillstring is disposed at least in part in a borehole and supported by the rig;
receiving block position data of the rig after addition of the length of pipe to the drillstring; and
controlling position of the drillstring with respect to time using the rig and at least a portion of the block position data for landing a drill bit of the drillstring on a bottom of the borehole,
wherein controlling position of the drillstring with respect to time comprises controlling velocity of the drillstring in an in-hole direction based at least in part on a computed distance between the drill bit and the bottom of the borehole, wherein the computed distance is based at least in part on at least a portion of the block position data.