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1.
Offshore Oil Field Applications
LinkQuest's underwater acoustic modems have been used extensively
in offshore oil exploration and production.
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Fugro Chance has
successfully used UWM2000 modems to monitor compass,
pitch, roll, depth, temperature, and load cell information
in real time in various pipeline recovery and
underwater construction projects.
See related news release: LinkQuest Acoustic Modems
Incorporate Data Fusion Functions
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A large number of LinkQuest's high speed modems have
been used to monitor sensors in oil field
seismic exploration.
Click the pictures
to enlarge
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Fugro Chance purchases
high power UWM4000 acoustic modems along with TrackLink 5000 systems
to monitor heading, pitch, roll, precision depth and load cell
information in real-time in deepwater offshore oil field
construction projects.
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LinkQuest's UWM2000 acoustic modems
have
played a vital role in assisting the installation of
offshore oil platforms in West Africa.
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2H offshore of UK
uses
UWM4000 modems to monitor vibration and tension of the
riser on oil platforms in Indonesia.
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Petrobras purchases
UWM3000 and UWM2000 modems for offshore oil production projects.
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Ashtead
Technology Rentals (www.ashtead-technology.com)
orders 6 UWM3000 modems to use with underwater Gyros.
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Seatronics Group purchases
a number of acoustic modems for offshore oil field applications.
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BMT Scientific Marine Services
( www.scimar.com)
successfully operates a deepwater real-time current monitoring
system from an offshore oil platform in Gulf of Mexico using UWM4000
modems.
  Click
the pictures to enlarge
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AOA Geomarine
Operations (www.agoem.com),
a Schlumberger Company, successfully operated UWM4000 modems from a
survey ship to communicate with its active EM seismic survey
towfish over 3000 meters of range.
2.
Real-time
Monitoring And Control Of Underwater Sensor
For
this type of application, a LinkQuest modem is installed on a
surface buoy, a surface ship or an oil rig to collect data
from underwater sensors in real-time. Typical sensor data
include measurements of current, CTD, tide, wave and
vibration, position or corrosion of underwater structure.
Obtaining sensor data from underwater cable plow or tow body
also falls into this category. The tow-way modems can also be
used to send control commands to the sensors.
LinkQuest
has supplied acoustic modems extensively for this type of
applications. For current measurement alone, over
200
successful deployments have been carried out worldwide using
LinkQuest's acoustic modems and Acoustic Current Profilers.
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Fugro
GEOS have successfully deployed LinkQuest's acoustic
modem for monitoring the ocean currents using ADCPs from
more than a dozen of DP vessels and oil platforms in North
Sea, Indian Ocean and West Africa.
See related news release: LinkQuest
Receives Acoustic Modem Order From Fugro GEOS
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NOAA's National Ocean
Service, Center for Operational Oceanographic Products and Services (CO-OPS)
achieves Real-time Wave Monitoring Using LinkQuest Acoustic Modems.
Over 550 mbytes of wave data, along with current data, have been transported over the acoustic
link in less than six months.
See related news release:
NOAA Achieves Real-time Wave Monitoring Using LinkQuest Acoustic Modems
Click the pictures
to enlarge
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NOAA Atlantic
Oceanographic and Meteorological Laboratory (AOML)
installed UWM2000H acoustic modems for real-time current
monitoring at Florida coast. The remote UWM2000H modem,
interfacing to an acoustic current profiler deployed at
200 feet of water depth, transports the current data
reliably every 20 minutes to the near-shore UWM2000H
modem over a distance of 2600 feet.
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Army
Corp of Engineers orders LinkQuest acoustic modems for
wave and current monitoring.
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University
of North Carolina at Chapel Hill orders UWM1000 modems
with Data Fusion option interfacing to ADCP and CTD for
coastal real-time monitoring project.
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USGS
monitors Lower Hudson river discharge and sediment flux
using UWM2000 modems.
more details can be found at http://ny.usgs.gov/projects/poused/index.html
and http://ny.usgs.gov/projects/poused/instrumentation.html
Click the picture
to enlarge
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Shell
Succesfully
Deployed LinkQuest's Acoustic Modems With ADCP
LinkQuest
Supports Shell's Deepwater Current Data Trial
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Proudman Oceanographic Laboratory (www.pol.ac.uk)
purchases two more sets of UWM3000 acoustic modems after
successful operating of the first set of UWM3000 modem
in various marine projects for two years.
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MeteoMer
of France monitors real-time ocean currents near
Total's West African oil platform from its French office.
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ENEA,
Italy
uses the UWM1000 modems for real-time monitoring of waves
using two ADCPs in coastal areas.
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LinkQuest Receives Acoustic Modem Order
From JAMSTEC
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Indonesia
National Oil Company uses LinkQuest modems with
InterOcean S4 current meters to monitor waves and currents
near offshore oil platforms.
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SAES,
Spain
uses UWM3000 and UWM2000H modems to control and command sensors
in shallow water horizontal environments.
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US
Navy Coastal Systems Station uses
UWM3000+ modems, a combination of UWM3000 and UWM3000H
modems, to monitor and control undersea sensors.
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Bodega Marine Laboratory
monitors ocean current using UWM1000 acoustic modems in
Bodega Bay of Northern California, a particularly
challenging environment for acoustic communication due to
the disturbance caused by high winds on the northern coast
of California.
Click the pictures to enlarge
3.
AUV/UUV Data Upload, Command And Control
AUV/UUVs
utilize sensors such as sub-bottom profiler and side-scan
sonar to conduct offshore survey.
Getting frequent update of sensor data is crucial to
the quality of the survey and effectiveness of the AUV/UUVs
for the survey work. LinkQuest’s high-speed acoustic modems
will allow frequent quality update of the survey data
collected by the AUV/UUV and therefore enhance the
productivity of the expansive survey work. The modems can also
be used to command and control an AUV/UUV from a surface
vessel.
LinkQuest's
acoustic modems have been adopted by most of the commercial
deepwater AUVs in the world.
The
UWM4010 high speed data telemetry acoustic modems have
been extensively used on the first commercially operated
deepwater AUV, Kongsberg Hugin 3000, operated by C&C
Technologies Inc. The UWM4010 modems have uploaded
50
Gigabytes
of sub-bottom profiler and sidescan sonar images
and other AUV status information in worldwide deployments since mid-2000. The always-on high quality images
and status updates prove to be highly valuable in
commercial survey. The advanced Broadband Spread Spectrum
signal also proves to cause no interference to other
acoustic instruments such as the Sub-bottom profiler
aboard the AUV. More details can be found on
C&C Technologies' web page
http://www.cctechnol.com/auv.php?id=12.
LinkQuest's
UWM4010 modems are the only acoustic modems which have
transported multi-gigabytes of data traffic annually in
the real world.
Click the pictures to enlarge
High
power command and control acoustic modems and high speed
data telemetry acoustic modems (models UWM3010 and UWM4010)
are equipped on board the commercial deepwater AUV
manufactured and operated by the team formed by Boeing,
Fugro and Oceaneering.
Click the picture to enlarge
- Naval Oceanographic Office, the US Navy
UWM3000
modems are purchased to obtain status updates. It is
also used to command and control the advanced US Navy AUV.
In total, LinkQuest has provided modems to 4 of these
vehicles.
Click the picture to enlarge
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Geoconsult AS, Norway
LinkQuest
provides UWM4010 high speed modems to the Kongsberg Hugin 3000
deepwater AUV operated by Geoconsult AS.
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Kongsberg uses UWM3000+ modems, a combination of UWM3000 and
UWM3000H modems, to monitor and control Hugin 1000 AUV.
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Hafmynd
of Iceland (www.gavia.is)
orders UWM2000H modems for its Gavia AUV.
 Click the picture to enlarge
4.
Acoustic Data Uploading From Moored Underwater Instruments
To avoid costly retrieval and redeployment of underwater
sensors, a modem can be deployed with the sensors.
Periodically, a ship equipped with an acoustic modem may visit
the mooring site and upload the data from the underwater
sensor without ever retrieving the sensors. This approach can
drastically reduce the cost associated with sensor retrieval
and it allows for more frequent update of sensor data. It also
allows changing the configurations of the sensors remotely
based on changing requirements.
5.
Manned Submersibles
Click the pictures to enlarge
Images transmitted from Deepworker
manned submersible from 1950 feet of water depth
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Subsea Tech of Korea
uses high speed acoustic modem function integrated with
the TrackLink 1500MA system to send the navigation data to
the Nuytco Deepworker submersible pilot.
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Undersea Hunter
(www.underseahunter.com) purchases integrated modem function with the
TrackLink 1500 USBL tracking system to communicate and
position its manned submersible purchased from Seamagine
Hydrospace Corporation (www.seamagine.com).
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