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Rehabilitation Of 24” Escravos–Warri Crude Pipeline System

NEC Technical > Gas > Rehabilitation Of 24” Escravos–Warri Crude Pipeline System

Rehabilitation of 24" Escravos–Warri Crude Pipeline System Complete

The Rehabilitation of the 24" Escravos–Warri Crude Pipeline System stands as one of NEC Technical's most operationally demanding and strategically important pipeline projects. This large-diameter crude transmission line traverses the ecologically sensitive and logistically complex terrain of the Niger Delta, connecting the Escravos terminal to the Warri refinery corridor — a route central to Nigeria's crude evacuation and refining supply chain.

Prolonged exposure to harsh environmental conditions, third-party interference, and operational stress had compromised sections of the pipeline's structural integrity. NEC Technical was contracted to conduct a full rehabilitation programme — restoring the system to its original design capacity, eliminating all identified defects, and implementing long-term integrity measures to extend the pipeline's operational service life.

"Rehabilitating a pipeline of this strategic importance across the Niger Delta terrain is no small undertaking. It requires technical mastery, environmental discipline, and the kind of coordinated field execution that NEC Technical has built its reputation on." — Project Director, NEC Technical

Working Process

NEC Technical deployed a structured four-phase rehabilitation methodology to systematically restore the full 24" Escravos–Warri pipeline system while minimising disruption to the broader production network.

01
Step

Integrity Survey & Defect Mapping

A detailed walk-over survey combined with inline inspection data analysis was carried out along the entire pipeline corridor to identify and prioritise all corrosion anomalies, mechanical damage, coating failures, and weld defects requiring remediation.
02
Step

Repair Engineering & Mobilisation

Engineering repair packages were developed for each defect category covering material specifications, weld procedure qualifications, repair sequencing, and environmental protection plans. Crews, equipment, and materials were then mobilised to the field.
03
Step

Field Repair & Rehabilitation Execution

NEC Technical's certified pipeline technicians and welders executed all works across the corridor including open-cut pipe replacements, installations, weld repairs, and cathodic protection electrode reinstatement in compliance with approved procedures and under continuous QA/HSE supervision.
04
Step

Pressure Testing, Commissioning & Handover

Following completion of all repair activities, the pipeline system was subjected to full hydrostatic pressure testing across defined test sections. Results were documented, punch lists cleared, and the rehabilitated system formally handed over to the client.

Project Information

Securing the integrity of Nigeria's critical crude transmission infrastructure through expert rehabilitation and proven pipeline engineering.

Client Name

Chevron Nigeria Limited / NNPC

Start Time

01 Jan, 2024

End Time

26 Apr, 2024

Location

Escravos–Warri Corridor, Niger Delta, Nigeria

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