Experimental verification of acoustic communication along drill pipes
Acoustic communications is a cost-effective to monitor real-time conditions of drilling operations. To predict the propagation behaviour of acoustic wave along drill pipes, the finite-different method is used. The results from the mathematical predictions were then verified with measurements taken f...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/10356/53332 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Acoustic communications is a cost-effective to monitor real-time conditions of drilling operations. To predict the propagation behaviour of acoustic wave along drill pipes, the finite-different method is used. The results from the mathematical predictions were then verified with measurements taken from the scaled-down model of the drill string.
This report will describe on the research of previous work on acoustic telemetry in drill string. Next, the simulations of the scaled-down model will be discussed. This is followed by the experiment on the measurements of acoustic signal propagation along the drill pipes using the scaled-down model of drill string in different pipe length configuration. The results obtained from the current experiments will be compared with the simulated results from the finite-difference model simulations.
It is concluded from the findings that the telemetry performance degrade with increasing pipe length. Findings also showed that 8-pipe ascending-descending order arrangement produces the best performance compared to the other variable pipe arrangements. |
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