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Pipeline Precommissioning

Unlock the full flow potential of your pipelines from pre-commissioning through ongoing maintenance — engineered for safe execution, optimal performance, and project success.

Pipeline Commissioning Services encompass a series of engineered activities performed to prepare newly constructed or modified pipelines for safe, reliable, and compliant operation. These services bridge the gap between mechanical completion and operational start-up.

Commissioning activities are executed under controlled procedures, documented quality plans, and strict HSE protocols — whether for onshore transmission lines, offshore subsea pipelines, or process interconnecting lines.

Scope of Pipeline Commissioning Services

1. Flooding & Hydrostatic Testing

The pipeline is filled with treated water and pressurized above its design operating pressure to verify structural strength, weld integrity, and leak tightness before service introduction.

2. Cleaning & Gauging

Mechanical cleaning pigs remove debris, construction residues, and foreign materials. Gauging pigs confirm internal diameter integrity and detect potential obstructions or deformation.

3. Dewatering & Drying

Following hydrotesting, the pipeline is dewatered using pigging operations and dried with air or nitrogen to achieve specified dew point requirements, preventing internal corrosion.

4. Nitrogen Purging & Inerting

Nitrogen displaces oxygen and creates an inert atmosphere, minimizing combustion risk during product introduction. Critical for hydrocarbon and gas pipelines.

5. Leak Detection & Integrity Verification

Advanced leak detection methods including pressure monitoring and helium leak detection ensure system tightness before commissioning approval.

6. Conditioning & Preservation

Internal conditioning treatments and corrosion inhibitors protect pipeline integrity during idle periods or prior to full operational ramp-up.

Purpose & Benefits

  • Verifies structural strength and leak tightness
  • Ensures compliance with design codes and regulatory standards
  • Minimizes start-up risk and operational failure
  • Protects long-term pipeline integrity
  • Enables safe and controlled product introduction

Pipeline commissioning is a critical phase in the asset lifecycle, ensuring that both onshore and offshore pipeline systems transition safely from construction to full operational service.