Frequency analysis of drilling signals
US10487642B2 · kind B2 · utility
5Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2014 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B4/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for directional drilling a subterranean borehole includes transforming surface sensor measurements from time domain sensor data to frequency domain sensor data. A rotary drilling parameter may be changed when a parameter of the frequency domain sensor data reaches a threshold or is within a predetermined range of values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.