Method of detecting signals in acoustic drill string telemetry
US7911879B2 · kind B2 · utility
5Cited by
18References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2007 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of acoustic telemetry in a drill string in a wellbore, comprises; transmitting an acoustic signal related to a parameter of interest from a transmitting location into the drill string; detecting signals propagated through the drill string at a receiving location, where the detected signals including noise; determining a drill string transfer matrix defining the propagation of signals through a transfer interval between the receiving location and the transmitting location; and using the detected signals and the drill string transfer matrix for obtaining an estimate of the acoustic signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.