Description

GIS Engineering & Environmental Services was entrusted with the full execution of 4 parallel fuel transfer pipelines connecting KOJ (Kurasini Oil Jetty) to the Sahara Energy Depot. The project was part of a strategic infrastructure improvement to increase petroleum product transfer efficiency and minimize vessel turnaround time at port. The installation was completed under strict safety, regulatory, and environmental guidelines.

Client: Sahara Tanzania Limited

Project Title: Piping Works from KOJ to Sahara Depot – Installation of 4 Fuel Transfer Lines
Location: Dar es Salaam Port Zone, Tanzania
Sector: Oil & Gas Logistics Infrastructure
Service Category: Pipeline Engineering, Fuel Transfer Systems, Civil & Mechanical Works

Problem

Due to increased fuel throughput and traffic at the Dar es Salaam Port, Sahara Depot required high-capacity, efficient, and environmentally safe fuel transfer lines directly from KOJ. The primary challenges included:

• Working in a high-risk, operational oil zone

• Navigating a congested pipeline corridor with multiple utility crossings

• Coordination with TPA, SUMATRA (now TASAC), and environmental authorities

• Need for tight schedule adherence to minimize port disruption

Solution

GIS provided turnkey pipeline design and installation services, covering all engineering, mechanical, and compliance aspects. Our solutions included:

• Engineering design for 4 parallel above- and underground transfer lines

• Installation of pipe supports, expansion loops, and valve chambers

• Pressure testing and hydrostatic testing of each line

• Environmental and social mitigation planning

• Construction of protective encasements at critical crossings

Process

• Route Survey & Utility Mapping
  Identified and coordinated existing pipeline networks to avoid service disruption.

• Pipe Fabrication & Trenching
  Precision welding and coating of fuel-grade pipes followed by trench excavation and bedding.

• Valve & Manifold Installation
  Deployed inline valves, air-release points, and flow control systems at strategic locations.

• Testing & Commissioning
  Conducted pressure and leak tests on all 4 lines in compliance with international standards.

• Environmental Monitoring & Safety Oversight
  Implemented spill prevention plans and trained staff on safety compliance.

Results

• 4 fully operational fuel transfer lines commissioned

• Reduced vessel offloading time by 30% at KOJ

• Full compliance with EWURA, NEMC, and port safety standards

• Enhanced depot fueling capacity and throughput efficiency

• Zero incidents reported during project execution