Acoustic telemetry systems and methods with surface noise cancellation
US7324010B2 · kind B2 · utility
28Cited by
6References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 9, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jan 1, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Acoustic telemetry systems and methods with surface noise cancellation. One illustrative embodiment may include an acoustic telemetry system comprising a transmitter configured to generate an acoustic information signal that propagates along a drillstring, and a receiver configured to detect an acoustic receive signal from the drillstring and a noise signal from a surface environment. The receiver operates on the acoustic receive signal and the noise signal to produce a modified signal indicative of the acoustic information signal and having a reduced noise content relative to the acoustic receive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.