Experimental verification of acoustic communication along metallic drill pipes
This project focuses on the realization of acoustic communication along scaled-down metallic drill pipes to provide transmission of down-hole measurements to the surface while the oil well is being drilled. The experiment test bed comprises of 9 constant length drill pipes measuring 400mm each. B...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Theses and Dissertations |
| Language: | English |
| Published: |
2015
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/64889 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | This project focuses on the realization of acoustic communication along scaled-down
metallic drill pipes to provide transmission of down-hole measurements to the surface
while the oil well is being drilled. The experiment test bed comprises of 9 constant
length drill pipes measuring 400mm each. BFSK signals and OFDM signals are encoded
as acoustic signals which traverse along the drill pipes and are subsequently received
and converted back to electric signals for data recovery at the surface receiver. Based on
transmitting two pairs of BFSK signals in parallel and OFDM signals, data throughput
rates of 432 bits per second (bps) and 4429 bps have been observed respectively.
Higher data throughput rate allows the oil rig industry to utilize more sophisticated
sensors for their drilling operations. This brings better safety, efficiency and ultimately
cost savings. Before acoustic telemetry, the oil rig industry has relied on low rate
transmission methods such as mud pulse telemetry, which can only support less than 100
bps even on real drill pipes. Therefore, this project demonstrates the feasibility of faster
transmission rate through drill pipes based on acoustic telemetry technology. |
|---|