Case studies

In Service Internal Tank Inspections

Oil and Gas

Air Control Entech
  • Project

    In Service Internal Tank Inspections

  • Type of facility

    Offshore FPSO

  • Industry

    Oil and Gas

  • Safety

    No Man Entry

  • Project efficiencies

    In Service Inspection

Case Study Main Image

Scope of Work

ACE were contracted by an Oil and Gas operator to perform internal tank inspections on board one of their Floating Production and Storage and Offloading (FPSO) Vessel in the North Sea. The client was initially looking for a drone service provider however after an initial consultation ACE advised that there is a better, safer and more cost-effective method.

Solution

Air Control Entech deployed a mini-ROV to perform visual and UT inspections within ballast and potable water tanks to remove the need to empty the tanks, isolate, ventilate and enter. Not only was a full visual inspection performed; the ACE inspection was also class society accredited and included UTM.

Results & Benefits

  • In-Service Inspection of ballast and potable water tanks.
  • No isolations, draining, ventilation, man entry, etc. required!
  • No working at height required for any inspections works.
  • Detailed reports issued within 7 days of demobilisation.
  • Use of multi-skilled teams allowed the operator to benefit from multiple technologies being utilised without the need for more personnel.
  • Project delivered on time with no disruption to ongoing operations.

Comparison

Conventional Access Air Control Entech
Personnel4-6 Personnel2
Cost£100k / Tank Cost£10k / Tank
Duration7 Days / Tank Duration1-2 Days / Tank
OperationsIsolations, man entry, ventilation, draining of tanks. Non-Operable for > 14 Days OperationsIn-service inspection
HazardHigh Risk HazardLow Risk
DiffrentiatorLow quality photos and UTM DiffrentiatorHigh resolution photos, video and UTM

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