Logged Successfully Trialled Offshore in the North Sea

Logged Completes a Successful Offshore North Sea Trial Offshore Trial Success

From March 12 to April 3, 2025, N-Sea Group successfully trialled the Logged platform across two offshore projects in the North Sea. A total of 76 operational working dives were recorded using Logged.

The projects were surface-supplied air diving, with one project incorporating in-water oxygen decompression, adding complexity and providing an ideal environment to rigorously test Logged under real offshore conditions.

How the Test Was Conducted

Supervisors received a brief onboarding session, with one-on-one support available for additional clarification before, after and during operations as scenarios unfolded. Most became confident using the system within just a few dives.

A dedicated N-Sea test project was also available, allowing supervisors to simulate dive scenarios and practice with the platform.

To ensure safety and legal compliance, the original paper-based logging process was maintained, while supervisors alternated between Logged and traditional paper logs. This enabled a real-time, side-by-side comparison of both systems throughout the trial. Dive logs created using Logged were reviewed, verified, and signed by both supervisors and divers during live operations, ensuring full compliance with IMCA guidelines.

Supervisory Team Involved

4 × IMCA Air Supervisors

2 × IMCA Trainee Supervisors

1 × IMCA Closed Bell Supervisor

18 x Divers

Tasks Logged Using Logged

✅ Heavy Lifts

✅ CPS Installation

✅ Clamp Installations

✅ Welding

✅ High-Pressure (HP) Tools

✅ Hydraulic Tools

✅ Pneumatic Tools

✅ Torque Sequence and Pressure

Test Scenarios During Live Operations

☑️ Tablet battery depletion and crash recovery

☑️ 24-hour offline functionality

☑️ Simulated Wi-Fi disconnections

☑️ App closure and relaunch

☑️ Full tablet power-down and restart

☑️ Live dive monitoring from onshore office

☑️ Diver access and signature of dive records

☑️ Entry and timer invalidation

☑️ Adding forgotten entries

☑️ Personnel changes ensuring logic enforcement

☑️ Multi-tablet operation

☑️ Simulated SurDO₂ dive with tablet coordination

Results

✅ No data loss

✅ No operational downtime

⚠️ Minor bugs identified (as expected)

💬 Constructive feedback gathered for future development

Supervisor Feedback

💬 “An incredibly well-thought-out product for the commercial diving industry.”

Ad Janssens, IMCA Air Diving Supervisor

💬 “Once you learn it, it clicks. It’s a great tool, and I can see its long-term benefits for the global industry.”

Tjitse Vergonet, IMCA Air Diving Supervisor

💬 “As a qualified 3.4U, it makes total sense to me. I was impressed with how Logged accounted for the many possibilities. It’s efficient, traceable, and built for how we actually work offshore. I enjoyed and trusted using Logged.”

Phil Walls, IMCA Trainee Supervisor

💬 “Logged is definitely a very well-produced system. Once you get used to it, you realise how obsolete paper logs really are. With a few tweaks, this innovation will be a strong improvement for our industry. I was happy to be part of the trial.”

Angus Templeton, IMCA Closed Bell Supervisor

Acknowledgments

Logged would like to sincerely thank N-Sea Group, along with the Supervisors and Divers who took part in the trial, for their professionalism, feedback, and trust throughout the process. Their support and expertise were instrumental in putting Logged to the test in real operational conditions and in helping us take this vital step toward digitising commercial diving.