Niugini Oil Company, Papua New Guinea: Lining Bulk Fuel Storage Tanks

We were one of many companies contacted by the Niugini Oil Company in Papua New Guinea, which was experiencing problems with one of their above-ground bulk fuel storage tanks at their tank farm in Lae. The tank, a 1,000 tonne Columbia Tec Tank used to store automotive diesel oil, was weeping between the bolted sections on the joints of the plate overlaps. Rather than replace the tank, the company was looking for a supplier that could provide an internal lining system that met the American Petroleum Institute API spec 12B.

Challenges

  • The lining system had to be suitable for application and function under tropical conditions, with sufficient flexibility to withstand a wide range of temperatures, whilst being chemically resistant to the fuel being stored in the tank

Pre treatment

Our Solution

Having assessed the requirements of the project, we recommended a full internal lining system to the walls and floors, which included the supply of materials and installation. We proposed a combination of a strong anti-corrosion primer, a special epoxy resin based flexible jointing compound, followed by two coats of a glass flake reinforced solvent-free flexible epoxy resin tank lining material.

To keep costs to a minimum, we advised the Niugini Oil Company to employ local labour for the surface preparation and new lining application works. We provided the materials, application equipment, quality control testing and overall site supervision. All materials and equipment were shipped out by ocean freight and two technical engineers were flown from the UK. Our engineers confirmed the initial assessment and oversaw the surface preparation, application and testing of the lining system.

Having applied multiple coats of a specialist flexible glass flake reinforced epoxy tank lining system, we fully tested the overall DFT and absence of micro-porosity. The tanks were then filled with fuel and further tested to confirm the integrity of our newly applied tank lining system.

 

Completed Installation

Results

Despite working in tropical working temperatures, we were able to successfully complete this project on time. Our client was highly satisfied with the finished results. Our technology has enabled the Niugini Oil Company to utilise much needed additional storage capacity at very little cost. An additional advantage of our system is that the tank can be easily maintained and cleaned, mitigating any risk to product contamination.