System Overview

Available for sale is a complete Sonardyne wideband acoustic emergency BOP control system , designed to provide an independent acoustic communication link for subsea blowout preventer activation.

These systems are commonly installed as a secondary emergency control path in deepwater drilling environments where hydraulic or multiplex control systems may be unavailable.

The equipment originates from a cancelled project and has reportedly never been deployed subsea . Several units remain in transport/storage configuration with batteries disconnected.

A rack-mounted controller has been powered on and verified to boot normally.

Main System Components

The package includes the following primary equipment:

1 × Portable Acoustic Valve Control Unit

1 × Dunking Transceiver

1 × Test Transducer with Holder

1 × Dunker Cable Assembly (70 m) on Reel

1 × Charger Unit

2 × Deep Acoustic Remote Transducers (DART)

1 × Subsea Electronics Module (SEM)

Subsea Cabling & Interfaces

4 × DART–SEM cable assemblies (7.5 m)

2 × SEM–BOP cable assemblies (5 m)

These cables provide the subsea interface between the acoustic command system and the BOP control interface.

Topside Control Equipment

3 × Rack-mounted Acoustic Valve Controllers

These controllers provide the operator interface and acoustic command generation for the subsea system.

Spares Package

The system also includes a significant spare parts package:

1 × SEM PCB electronics kit

1 × DART PCB electronics kit

2 × SEM endcaps with connectors

1 × BOP subsea tool kit

The inclusion of spare electronics and subsea connectors is valuable for operators intending to recommission or maintain the system.

Technical Characteristics

Typical characteristics of the Sonardyne wideband acoustic BOP control architecture include:

• independent acoustic emergency command link
• wideband acoustic communication protocol
• deepwater capability up to 4000 m water depth
• long-range subsea command capability
• rack-mounted topside operator control
• portable acoustic testing capability

Condition

• equipment visually inspected
• electronics appear clean and well preserved
• connectors and internal components in good condition
• storage configuration labels present on subsea units
• One rack controller was powered on and displayed the normal boot sequence:

Sonardyne BOP System Control Panel – Firmware Version 2.04.02

Subsea units currently remain in storage configuration with batteries disconnected .

Prior to operational deployment standard recommissioning procedures may include:

• battery replacement
• O-ring inspection
• pressure testing

Inspection

Inspection by appointment is possible for qualified buyers.

Additional photographs and documentation available upon request.