Method and equipment for drilling control by vibration analysis
US5141061A · kind A · utility
44Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Device for the auditory and/or visual representation of mechanical phenomena in the interaction between a drilling tool and rock being drilled, characterized by the fact that it includes a mechanism for picking up a vibratory signal representing the vibration of the tool at the cutting face using an accelerometric sensor at a specific point on the drilling stem and processing equipment (45, 31, 31) for filtering the signal in the frequency band of 10 to 200 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.