System and method for controlling a drilling machine
US10428638B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Dec 23, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C37/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method for drilling a borehole using a drilling rig having a rotary drill bit includes monitoring one or more drilling parameters; determining whether the one or more monitored drilling parameters are within predetermined specifications for one or more of the monitored drill parameters; and, executing an exception control procedure for control of a drilling parameter. The exception control procedure receives an input sensor value associated with a drilling parameter and applies feedback control to establish a scaled error value that is used to compute a setting value for the drilling parameter. The drilling parameters controlled may include the rotation speed of the drill bit, the feed rate of the drill bit, the weight-on-bit, or rotation torque during retraction of the drill bit. A computer-readable database of specifications of drill bits may be provided as a part of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.