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Results from a pre-trenching AUV survey for a electrification project

Results from a pre-trenching AUV survey for a electrification project

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Argeo

Results from a pre-trenching AUV survey for a electrification project

Asker, 15 July 2021: Argeo was contracted for a planned electrification project for a major Norwegian O&G customer.  More than 120km-long corridor survey was performed by Argeo using Autonomous Underwater Vehicle (AUV) in less than a week. Performance per 12 hr missions with more than 70 line kilometres proves the efficiency of the technology compared to traditional ROV surveys. With water depth ranging from a few tens of meters to 600 meters in the surveyed area, 20- to 50-cm resolution bathymetric maps along with 5 cm-resolution HiSAS imagery and backscatter mosaics provide exceptional support in underwater construction projects such as laying of cables and pipes, anchoring etc. High-quality digital elevation models integrated with sub-bottom profiling provide valuable 3D-information about the surveyed corridor allowing to make sound decisions for geotechnical tests and further construction operations.

Argeo Hugin system

Fig. 1. Combined results from Synthetic Aperture Sonar (SAS) data overlaid with high resolution Multibeam (MBES) data from the same “run”

A corridor survey data acquired using an AUV. Smooth sedimented seafloor – bathymetric data is represented in colour, see rainbow colour scale for water depth reference on the left – surrounded by outcropping basement rocks imaged in HiSAS data that provides even wider coverage.

Fig. 2. SAS overlaid MBES data for a different part of the survey

Fig. 2. A corridor survey data acquired using an AUV. Outcropping basement rocks imaged by multibeam-sonar and synthetic-aperture sonar (HiSAS) data – bathymetric data is represented in colour, see rainbow colour scale for water depth reference on the left.

Mr. Trond F. Crantz, CEO of Argeo commented as follows:

“I’m very pleased with the exceptional results from this project, which is a testament to the brilliant skills of our GEO-team and yet again proves to our demanding clients how very accurate digital models of a project can save millions of Dollars in the later design and construction phase. The efficiency from unmanned autonomous acquisition through a streamlined data management workflow proves our concept of Faster, Better and Greener solutions at a lower cost for our customers and we have more exiting news to be released during our Q2 presentation on the development of this very promising technology.”

For more information, please contact:

Trond Figenschou Crantz, CEO

Email: trond.crantz@argeo.no

Phone: +47 976 37 273

www.argeo.no/news/

Argeo in brief

Argeo is a company with a mission to transform the ocean surveying and inspection industry by utilizing autonomous surface and underwater robotics solutions. Equipped with unique sensors and advanced digital imaging technology, the Autonomous Underwater Vehicles (“AUVs”) will significantly increase efficiency and imaging quality in addition to contribute to significant reduction in CO2 emissions from operations for the global industry in which the Company operates. The Company’s highly accurate digital models and digital twin solutions are based on geophysical, hydrographic and geological methods from shallow waters to the deepest oceans for market segments in Infrastructure, Offshore Wind, Oil & Gas and Deep Sea Minerals.

Argeo was established in 2017 and has offices in Asker and Tromsø, Norway. Since its incorporation, Argeo has carried out complex projects for some of Norway’s largest companies in the field.

 

 

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