Overview
of facilities
Crude Oil Storage Tanks
The Crude oil storage and blending facility consists of 9 completed concrete in-ground fixed roof tanks, each with a capacity to store 1.1 million barrels. The construction of the tanks included three layers of barriers, i.e.
- The primary liquid container constructed of concrete including the acrylonitrile coated internal surface;
- A leakage monitoring layer between the primary and secondary containment layers;
- A HDPE secondary containment layer which encapsulates the entire tank containing both the tank liquid and vapour storage volumes.
The tanks are used for both storage and blending of different grades of crude oil. The blending will be either in-line blending or using the jet nozzles situated at the bottom of the tanks. The performance of the jet nozzles was evaluated using CFD modelling for both mixing / blending, the jet range and re-suspension of solids.
Structural Analyses
Full finite element models were completed for the concrete tank design. In addition, a separate finite element model was developed for the seismic analysis of the tanks to ensure the structural stability of the system in all operating conditions.
