Machine Operators play a critical role in subsea and offshore construction projects such as jacket foundations, wind turbine installations, and pipeline supports. Their work ensures structural integrity by delivering high-quality grout used to fill annuli or secure components in challenging, high-pressure marine environments.
Pre-Mixing Setup
• Inspect and prepare grouting equipment:
– Set up and check high-shear grout mixers, holding tanks (agitators), and grout pumps
– Inspect water supply systems, additive dispensers, and pressure control systems
• Prepare materials:
– Ensure availability of offshore-approved materials (cement, additives, pre-blended grout)
– Verify correct storage conditions, including temperature and moisture control
Grout Mixing Operations
• Accurate batch preparation:
– Mix grout in line with approved offshore mix designs
– Follow specified water-to-cement ratios and add chemical admixtures (e.g. retarders, anti-washout agents)
• Quality control during mixing:
– Monitor grout density, viscosity, and temperature
– Conduct flow cone or Marsh cone tests if required
– Keep grout continuously agitated to prevent segregation
Coordination with Injection Team
• Supply mixed grout efficiently:
– Ensure continuous grout feed to injection systems
– Monitor pressure levels and report any anomalies to the supervisor
• Real-time adjustment:
– Modify batches on instruction from grouting supervisors as needed during live operations
Maintenance and Equipment Handling
• Routine maintenance:
– Carry out daily maintenance on mixers, pumps, valves, and tanks
• Cleaning:
– Clean equipment after operations to prevent cross-contamination or blockages
• Troubleshooting:
– Assist with diagnosis and resolution of mechanical or operational issues
Safety and Compliance
• Follow offshore HSE protocols:
– Adhere to safety regulations including PPE use, hazardous material handling, and confined space procedures
– Participate in toolbox talks, safety drills, and risk assessments
• Environmental responsibility:
– Prevent spills and ensure correct disposal of residual grout according to environmental guidelines
Documentation and Reporting
• Maintain logs and batch records:
– Track mix times, volumes, mix ratios, and operational parameters
– Log any incidents, delays, or anomalies for QA/QC and offshore management reporting
• Offshore or marine grouting experience preferred
• Familiarity with grout properties and mixing systems
• Ability to perform under pressure in offshore environments and shift-based operations
• Certifications:
– BOSIET (Basic Offshore Safety Induction and Emergency Training with HUET)
– Offshore OGUK Medical Certificate
– H2S Awareness (if applicable)
