Hydroid Builds Autonomous LARS for AUVs

Hydroid, a subsidiary of Kongsberg Maritime, has released Line Capture Line Recovery (LCLR), a self-contained module that is initially offered on Hydroid’s REMUS 600 autonomous underwater vehicle for the purpose of autonomous launch and recovery.

“We designed the LCLR to be a first-of-its-kind system that will make the launch and recovery process completely autonomous,” said Duane Fotheringham, president of Hydroid. “This will enable easier vehicle recovery and increase operational flexibility. As industry leaders, it is our goal to continue to progress autonomous technologies, which is illustrated with the development of this innovative product.”

How it works

A vertical line is deployed in the water with a transponder attached to the end of the line. When the vehicle is commanded to dock, the LCLR software autonomously homes the vehicle to approach the transponder. The vehicle navigates autonomously toward the transponder and attaches itself to the line above the transponder. The line and the attached vehicle are then recovered on a vessel such as an Unmanned Surface Vehicle (USV) or any other platform. The vessel may be stationary or moving during the capture process.

The LCLR module uses a linear Digital Ultra Short Base Line (DUSBL) Acoustic Array for homing the vehicle to the transponder. The final capture is assisted by articulated arms for capturing the line after the vehicle reaches it. Upon capture, a latch mechanism attaches the vehicle to the line. An optical sensor is used to confirm the completion of the vehicle’s capture and initiate its recovery.

During the approach of the vehicle to the transponder, the system Graphical User Interface (GUI) can send updates on the transponder position via acoustic messages to the vehicle. The GUI may be configured to transmit the position update to the vehicle automatically or manually by the operator. The LCLR system also works for moving captures, using GPS to determine the vessel’s position.

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6th Offshore Well Intervention Conference Gulf of Mexico

The Offshore Well Intervention Gulf of Mexico conference (OWI GOM) is returning to Houston, Texas for its sixth year on Wednesday 20 – Thursday 21 November.

Featuring Anadarko, BP, Shell, Chevron, BHGE and Oceaneering, the conference aims to help operators transition to the latest compliance updates, WI systems and business models that enhance safety, quicken well access and improve commerciality.

Across two days, more than 200 delegates, 15 exhibitors and 30 speakers will network together and create solutions to some of the most pertinent industry challenges right now, through a conference programme focused on:

  1. Clarifying compliance updates
  2. Quicker well access and safer well control
  3. ​Understanding HPHT well intervention (systems)
  4. Forecasting well intervention activity, discussing new commercial models and comparing platform options
  5. Best practice riserless well intervention
  6. ​The latest well intervention equipment

For registration, speaking or sponsorship enquiries contact Abigail Clifton on aclifton@offsnet.com; +44 (0) 203 793 8800.

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