Estimation and compensation of pressure and flow induced distortion in mud-pulse telemetry
US9133708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Aug 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for reconstituting a signal due to a flow distortion in a mud-pulse telemetry system, having steps of obtaining at least one parameter to be transmitted by a transmitter to a receiver through the mud-pulse telemetry system, estimating a change in a flow rate in a borehole fluid along a trajectory of the mud-pulse telemetry system undergoing a fluid distortion, estimating a Doppler rate of the signal traveling through the borehole fluid along the trajectory of the mud-pulse telemetry system, calculating a Doppler compensation value for the signal sent along the trajectory in the borehole fluid, transmitting the signal of the at least one parameter through the mud-pulse telemetry system, receiving a portion of the signal of the at least one parameter and reconstituting at least a portion of the signal using the Doppler compensation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.