Finance & Investing
News Services
Newsletters
Get free industry updates via email.
Daily News
Weekly News
Equipment Updates
Weekly Job Register
Monthly Event Guide
Our privacy
pledge.


advertisement

Sonardyne Takes First Order for DP-INS on Vantage's Dragonquest

change text size

Sonardyne International has taken its first order for a Dynamic Positioning Inertial Navigation System (DP-INS). Vantage Drilling's new 12,000 feet-rated drillship, Dragonquest, is set become the first deep water drilling unit in the world to be equipped with the new system when it begins operations in the Gulf of Mexico for Petrobras later this year.

Traditionally, an acoustic positioning system and two separate DGPS systems are used. However, a vulnerability remains should the acoustics be affected by aeration and noise and both GPS systems be simultaneously affected by signal disruption. The latter is particularly common around equatorial regions and during periods of high solar radiation. Solar activity is currently increasing and is forecasted by NASA to peak in 2013.

Consequently, there is a recognized need amongst operators for a third, independent DP reference that would allow safe rejection of a positioning error in one of the other two reference types

DP-INS combines the complementary characteristics of Sonardyne's Long and Ultra-Short BaseLine (LUSBL) positioning technology, with high integrity inertial measurements from its Lodestar AHRS/INS platform. The resulting output is resilient to short-term acoustic disruptions and completely independent from GPS.

A single navigation solution is computed and output to a display with intuitive status and quality metrics. Standard output telegrams are available for Converteam, L3, Rolls Royce, Navis and Kongsberg DP systems.

In addition to the system's deep water positioning performance and safety benefits, Sonardyne DP-INS delivers valuable costs savings. It can be used with fewer acoustic transponders deployed on the seabed, significantly reducing set-up time following a vessel's arrival on location. The system also only needs occasional aiding from the acoustic system, extending transponder battery life and reducing maintenance operations.

Spencer Collins, Senior VP International Sales said, "We are delighted to be installing DP-INS onboard Dragonquest. The trials over the last year have successfully demonstrated to vessel owners and operators like Petrobras, that Sonardyne can now offer acoustically aided INS tailored for safe and efficient dynamic positioning operations."

WHAT DO YOU THINK?

Post a Comment Generated by readers, the comments included herein do not reflect the views and opinions of Rigzone. All comments are subject to editorial review. Off-topic, inappropriate or insulting comments will be removed.
Carl | Dec. 9, 2013
I was the DP engineer on that vessel resposible for the interface to the INS system....very interesting


Related Companies
For More Information on the Offshore Rig Fleet:
RigLogix can provide the information that you need about the offshore rig fleet, whether you need utilization and industry trends or detailed reports on future rig contracts. Subscribing to RigLogix will allow you to access dozens of prebuilt reports and build your own custom reports using hundreds of available data columns. For more information about a RigLogix subscription, visit www.riglogix.com.

Most Popular Articles
From the Career Center
Jobs that may interest you
Quality Assurance Inspector II
Expertise: QA / QC / Inspection
Location: Fort Worth, TX
 
Senior Design Engineer-Completions Tools
Expertise: Design Engineer
Location: Houston, TX
 
Electrical Engineer - Contract Position 18 months
Expertise: Design Engineer, Electrical Engineering, MWD/LWD
Location: Houston, Galleria Area, TX
 
search for more jobs