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

Claim 12:
13. A system comprising:
a processor;
memory accessible by the processor;
processor-executable instructions stored in the memory and executable to instruct the system to:
receive 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;
receive block position data of the rig after addition of the length of pipe to the drillstring; and
control 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 the block position data of the rig, prior to addition of the length of pipe to the drillstring, comprises block position data for an on-bottom state of the drillstring that is prior to an in-slips state of the drillstring.