DeepStar Enlists 4Subsea for Polyester Mooring Line Monitoring Task
to develop an industry guideline for monitoring polyester mooring lines used in deepwater floating systems, the company said.The project is aimed at establishing best practice for integrity monitoring of polyester mooring systems, supporting safe operations, reduced operational risk and improved verification of design assumptions for floating offshore assets.The guideline will address what parameters should be monitored, how monitoring should be carried out and how data should be interpreted for polyester mooring lines. The work will be based on operator requirements and operational experience and
Applied Acoustics Deploys Pyxis INS + USBL System for SEP Hydrographic
reducing safety risks in nearshore environments.Data accuracy: The system achieved sub-meter accuracy when resolving raw Side Scan Sonar (SSS) positioning. Average SSS positional accuracy improved from ±1.07m using a competing USBL system to ±0.92m post SSS box in positional verification with the Pyxis system
Marine Scientists Call for Rules on Marine Carbon Dioxide Sequestration
An international group of leading marine scientists has launched a brief on marine carbon dioxide removal – the sequestration of atmospheric carbon dioxide in the ocean.To ensure that such methods can be applied safely and transparently in future, the group says reliable monitoring, reporting and verification (MRV) systems will be essential and will need to track how much CO2 is removed, how long it is stored, and any potential environmental impacts.This is the central message of the European Marine Board’s Future Science Brief No. 13, ‘Monitoring, Reporting and Verification for Marine
Ghost Shark Factory Opens in Sydney
7,400m² facility is purpose-built to produce Ghost Shark, and its commercial baseline the Dive-XL, at-scale and, subject to government approval, for export to allies and partners around the world. It combines advanced robotic manufacturing, AI-driven logistics, and a custom test tank for in-water verification of buoyancy, electrical systems, and safety before sea trials.The Ghost Shark will move to full scale production in 2026
Subsea Compression and the Ormen Lange Moon Landing
, which set a new world record for power transmission to a subsea compression system. “The longest distance we had delivered on similar systems before was around 35 kilometers,” Hjelmeland said, adding that there was considerable skepticism from some within the industry during the early verification phase. “There were people at the time who said this was not possible,” he recalled.The technical crux was the power and control umbilical and the placement of the variable frequency drive (VFD) 120 kilometers away from the motor and its controls. To de-risk this, the alliance built
Seatools to Equip Jan De Nul’s New Subsea Vessel with Fall Pipe ROV
be installed at the lower end of the vessel’s vertical fall pipe and is responsible for the accurate horizontal positioning of the pipe’s outlet.In addition, the ROV will be used to perform detailed pre, intermediate, and post-lay surveys, supporting precise subsea rock installation and verification operations.This enables precise subsea rock installation, a critical operation for the protection and stabilization of subsea infrastructure such as cables and pipelines.Seatools FP-ROV will feature the company’s proprietary ROV Dynamic Positioning (DP) system, which provides automated and
MCS Goup’s PRC Tech Streamlines Subsea Ops for Shell JV off Egypt
3D models of the subsea environment.Key technical tasks involved the installation of eight 29-metre jumpers with millimeter accuracy, precise laying of two umbilicals, 5 km and 2 km in length, and providing 3D visualization to detect and correct misalignments.Also, the scope of the job covered verification surveys to ensure alignment and structural integrity.Four-Stage ProcessTSB - PRC 3D Point Cloud during the Pre-Engineering Survey (Credit: MCS Group)The operation was carried out in four stages. During umbilical laying in Phase 10, an ROV from DeepTech, a MCS Group’s company, equipped with
OEG Unveils Geometry Assurance Software for Ships and Subsea Vessels
systems onboard ships and subsea vehicles to feature calibration software.It has been developed as a database to help document survey vessel geometry and standardize the measurement of vessel dimensions, sensor placements, and reference points.Alongside this, it processes the calibration and verification for all installed heading and attitude sensors, which will ensure accurate positioning and survey data integrity.Survey teams often face challenges due to inconsistencies between hardware and software manufacturers, with varying configurations and sign conventions in vessel survey setups.These
CorPower Ocean, NTNU Join Forces for AI-Based Wave Energy Project
is its ability to tune and detune according to ocean conditions, limiting the response to storms and amplifying the motion and power capture in normal waves.This feature has been demonstrated during the operational period of the company’s C4 device in Aguçadoura, off Portugal. The verification of the amplified motion and power capture by the phase control system is seen as a key outcome from the HiWave-5 demonstration project.CorPower Ocean Verifies All Key Aspects of C4 Device in Wave Power BreakthroughWave farm projects are being developed by customers using CorPower Ocean’s
December 2025
