Benefits and Process of Remote Operated Vehicle (ROV) Inspections for Tank Maintenance

Blue Locker Diving Team
on
December 3, 2024

When maintaining large storage tanks, ensuring their structural integrity is vital to operational safety and efficiency. Regular inspections play a crucial role in detecting potential issues before they escalate into costly problems. But what happens when taking your tank out of service isn’t an option? Enter Remote Operated Vehicle (ROV) inspections—a cutting-edge solution that allows thorough tank inspections while keeping your operations running smoothly.

What Are ROV Inspections?

Remote Operated Vehicles (ROVs) are robotic systems designed to navigate underwater environments. Equipped with high-definition cameras, lighting, and sensors, these advanced machines provide a safe and efficient alternative to traditional inspection methods, such as manual diver inspections.

ROVs excel in environments where safety, accessibility, or cost considerations make human entry less feasible. By employing these robotic units, tank owners can gain valuable insights into the condition of their tank’s interior without draining, halting operations, or putting personnel at risk.

Advantages of ROV Inspections

1. Non-Invasive Inspection

One of the most significant benefits of ROV inspections is that they are entirely non-invasive.

  • No Drainage Required: Draining a tank to allow human access can be time-consuming and costly, especially when the tank contains essential liquids like water, chemicals, or fuel.
  • Operational Continuity: Since ROVs can operate within full tanks, your operations can continue uninterrupted, saving you from downtime and revenue loss.

2. Detailed Documentation

ROVs capture high-resolution video footage and images of the tank’s interior, offering unparalleled visibility into its condition.

  • Real-Time Footage: You can view the ROV’s feed in real time, allowing you to observe any potential issues as they are discovered.
  • Comprehensive Reports: After the inspection, you’ll receive detailed documentation, including videos, still images, and expert analysis of the findings.
    This level of documentation provides a clear and actionable overview of your tank’s health.

3. Enhanced Safety

Traditional tank inspections often require a team of divers to enter confined spaces, exposing them to potential hazards like poor visibility, contamination, and structural instability. ROV inspections eliminate these risks by keeping personnel out of the tank.

  • No Human Entry: The robot does all the work, reducing the likelihood of accidents.
  • Accessible to Difficult Areas: ROVs are designed to maneuver in tight or challenging spaces, ensuring a thorough inspection without endangering lives.

4. Cost-Effective Solutions

While ROV inspections involve advanced technology, their costs are comparable to hiring a 3-person dive team. By avoiding downtime, the expenses of draining and refilling the tank, and potential safety risks, the value of ROV inspections is clear.

What Can an ROV Inspection Reveal?

ROV inspections are instrumental in identifying a range of potential issues, including:

  • Corrosion: Over time, the sides and bottom of a tank can corrode due to exposure to water, chemicals, or other substances. Early detection is essential to prevent structural failures.
  • Cracks or Leaks: Small cracks or leaks can quickly escalate into significant problems if left undetected.
  • Sediment Buildup: Sediment accumulation on the tank floor can reduce storage capacity and affect liquid quality.
  • Coating Deterioration: The protective coatings applied to tank surfaces can degrade over time, exposing the structure to potential damage.
  • Structural Damage: Dents, bulges, or other deformities in the tank walls can indicate serious issues requiring immediate attention.

The ROV Inspection Process

Step 1: Planning and Preparation

Every successful ROV inspection begins with a thorough understanding of the tank’s specifications, such as its size, shape, contents, and material. Our team collaborates with you to determine the most suitable inspection approach.

  • Tank Assessment: We gather information about the tank’s environment, including its accessibility and any potential hazards.
  • ROV Configuration: Based on the tank’s parameters, we equip the ROV with the appropriate cameras, lights, and sensors.

Step 2: ROV Deployment

The ROV is carefully lowered into the tank, guided by a skilled operator. Using a control unit, the operator navigates the ROV through the tank to capture detailed footage of its interior.

  • Real-Time Monitoring: The operator and your team can monitor the ROV’s feed in real-time, ensuring all areas of interest are thoroughly inspected.
  • Remote Operation: The operator can adjust the ROV’s lighting and camera angles to focus on specific areas or concerns.

Step 3: Inspection and Data Collection

As the ROV explores the tank, it records high-definition videos and still images of the tank’s interior surfaces.

  • Tank Floor Examination: The ROV inspects the tank floor for sediment buildup, cracks, or uneven surfaces.
  • Wall Inspection: The sides of the tank are scrutinized for signs of corrosion, coating deterioration, or structural damage.

Step 4: Analysis and Reporting

After completing the inspection, the collected data is analyzed by experts to identify any areas of concern.

  • Detailed Reports: You’ll receive a comprehensive report, including annotated images and video clips highlighting key findings.
  • Actionable Insights: Our team provides recommendations for any necessary repairs, maintenance, or further inspections.
FeatureROV InspectionDiver Inspection
SafetyNo human entry; no risks to personnelRisky due to confined spaces, contamination, and visibility issues
AccessibilityCan maneuver in tight or hazardous areas.Limited by diver size, safety gear, and visibility.
CostComparable to a 3-man dive team.May require additional costs for draining/refilling and safety measures
DowntimeNone; inspections occur while the tank remains in service..Requires draining and downtime, disrupting operations.
DocumentationHigh-quality video and images, real-time viewing available.Limited to diver reports and less detailed footage.

ROV vs. Diver Inspections: A Comparative Look

Applications of ROV Inspections

Industrial Tanks

ROVs are ideal for inspecting industrial storage tanks used in sectors like manufacturing, petrochemicals, and power generation.

Municipal Water Tanks

Ensuring the integrity of water storage tanks is critical for public health. ROV inspections can detect leaks, sediment buildup, and coating issues in potable water tanks.

Chemical Storage Tanks

The ability to inspect tanks containing hazardous chemicals without draining or exposing personnel to risks is a significant advantage of ROV technology.

Oil and Gas Storage Tanks

ROVs can safely navigate oil and gas tanks, identifying potential issues like corrosion or structural damage while maintaining strict safety protocols.

Why Choose Blue Locker Diving for ROV Inspections?

At Blue Locker Diving, we pride ourselves on offering innovative solutions tailored to your needs. Our ROV inspection services provide the perfect blend of cutting-edge technology, expertise, and commitment to safety.

  • Expert Team: Our skilled operators have extensive experience navigating ROVs through a variety of tank types and conditions.
  • Customized Solutions: Every inspection is tailored to the unique specifications of your tank, ensuring thorough and accurate results.
  • Transparent Communication: From planning to reporting, we keep you informed every step of the way.

ROV inspections have revolutionized the way tanks are inspected and maintained. By providing a safe, efficient, and cost-effective alternative to traditional methods, these robotic systems offer unmatched insights into your tank’s condition without disrupting operations.

Whether you’re looking to assess corrosion, detect leaks, or simply ensure the structural integrity of your tank, Blue Locker Diving’s ROV services are here to help. Contact us today to learn more about how our ROV inspections can safeguard your operations while minimizing downtime and maximizing efficiency.

Ready to see the benefits of ROV inspections for yourself? Call Blue locker Diving today to schedule your inspection and experience the future of tank maintenance.