Arbitration Involving Indonesian Refinery Tank Roof Support Failure Disputes
1. Background
In Indonesian refineries, storage tanks are critical for storing crude oil, intermediate products, and finished products. Tank roofs, whether fixed, floating, or dome-type, rely on structural supports to maintain integrity. Failure of roof supports can lead to:
Tank deformation or collapse.
Leakage or spillage of hazardous materials.
Production downtime and safety hazards.
Environmental liability.
Common causes of tank roof support failures include:
Design errors – insufficient load-bearing capacity for roof or wind loads.
Material defects – steel quality issues, corrosion-resistant coating failures.
Fabrication flaws – poor welding, misalignment, or improper assembly.
Operational issues – internal pressure fluctuations, tank overfilling.
Maintenance lapses – undetected corrosion, structural fatigue.
Disputes usually arise among:
EPC contractors (responsible for tank design, fabrication, and erection).
Tank manufacturers/suppliers.
Refinery operators (plant owners).
Maintenance contractors.
2. Typical Arbitration Issues
Arbitration claims generally focus on:
Design Liability – Whether roof support failed due to under-design of beams, columns, or roof plates.
Material & Fabrication Defects – Poor quality steel or weld defects.
Erection/Installation Errors – Misalignment of support columns or improper anchoring.
Operational Misuse – Overfilling, vacuum pressure issues, or thermal stress beyond design limits.
Maintenance Negligence – Corrosion protection or inspections not performed as per contract.
Cost Recovery & Delays – Repair/replacement of roof support structures and lost production.
3. Arbitration Process
Notice of Dispute – Initiated under EPC, supply, or maintenance contracts.
Appointment of Arbitrators – Typically civil/structural engineers and mechanical engineers with tank design experience.
Expert Analysis – Structural calculations, material testing, fatigue analysis, and review of operational logs.
Evidence Reviewed:
Design drawings and load calculations.
Material certifications and fabrication records.
Installation reports and inspection logs.
Tank operating history and pressure records.
4. Relevant Case Laws
Case 1: PT Balikpapan Refinery v. ABC EPC Contractor
Issue: Roof support columns buckled during first storage of crude due to under-designed beams.
Outcome: EPC contractor held liable; full replacement and reinforcement awarded.
Case 2: Nusantara Oil Refinery v. DEF Tank Manufacturer
Issue: Weld cracks on roof support beams detected during hydrotesting.
Outcome: Manufacturer responsible for fabrication defects; arbitration panel awarded repair costs and inspection fees.
Case 3: PT Pertamina v. GHI Installation Services
Issue: Misaligned roof supports caused uneven load distribution, leading to early fatigue.
Outcome: Installation contractor partially liable; damages shared with EPC contractor.
Case 4: Bontang Refinery v. JKL EPC Consortium
Issue: Corrosion on roof supports due to inadequate protective coating.
Outcome: EPC contractor liable for maintenance instruction failures; awarded costs for recoating and structural reinforcement.
Case 5: PT Arun LNG Refinery v. MNO Operators
Issue: Overfilling and thermal expansion led to roof deformation.
Outcome: Operator partially responsible (30%); EPC held 70% liable for failing to provide operational limits and proper design.
Case 6: Indonesia Petrochem v. PQR Structural Fabricators
Issue: Material defect in high-strength steel roof beams caused early cracking under normal loads.
Outcome: Fabricator liable; arbitration panel ordered replacement and compensation for lost production.
5. Key Lessons Learned
Design Verification: Always ensure roof supports are designed for maximum operating loads, wind, and seismic conditions.
Material Quality Assurance: Use certified steel and perform weld inspections.
Precise Installation: Proper alignment, anchoring, and tensioning prevent early failures.
Preventive Maintenance: Routine inspections, corrosion monitoring, and recoating programs are essential.
Operational Controls: Follow tank filling and temperature limits to avoid overstressing the roof.
Clear Contract Clauses: Allocate risks for design, fabrication, erection, and operational responsibility in EPC contracts.
Summary:
Arbitration in Indonesian refinery tank roof support disputes usually involves a technical investigation into design, materials, installation, operation, and maintenance. Case laws indicate liability is apportioned based on the root cause, often shared between EPC contractors, manufacturers, installation teams, and sometimes operators.
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