Patent ID: 11920459
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 18:
19. A system for drilling a subterranean wellbore, the system comprising:
a rotary steerable tool or a steerable drill bit including at least first and second axially spaced pads configured to extend radially outward from a tool body and engage a wall of the wellbore, the engagement operative to steer a drilling direction; and
a downhole controller deployed in the rotary steerable tool or a steerable drill bit, the controller including instructions to (i) measure radial displacements of each of the first and second axially spaced pads while the system rotates in the wellbore and (ii) compute a rate of penetration of drilling by processing the radial displacements measured in (i).