Within the scope of the project, all infrastructure, superstructure, mechanical, electrical, and instrumentation works related to the crude oil and fuel oil storage facilities were executed on a turnkey basis. The works covered a broad range of engineering and construction activities, from tank foundations and yard pavements to pipe bridges, cathodic protection systems, process piping, and the commissioning of electrical and automation systems.

Overall Project Scope

The project was completed using an integrated execution approach and included the following main components:

• Foundations for crude oil and fuel oil storage tanks

• Protective walls and retaining structures

• Reinforced concrete culverts, general drainage, firewater, and oily water drainage systems

• Concrete roads and yard pavements

• Steel barriers and wire fencing works

• Reinforced concrete foundations and steel structures for pipe bridges

• Cathodic protection systems

• Structural steel supports for piping and electrical systems

• Process piping systems of various diameters

• Low-voltage, weak-current, electrical, and instrumentation systems for tanks and pump units

• Installation and commissioning of operational equipment

Shoring, Gabion, and Anchoring Works

To ensure ground safety and structural stability, the following shoring and anchoring works were carried out:

• 2,100 m² of gabion wall construction

• 9,605 m of bored piles

• 16,100 m of ground anchors

• 975 m of weep holes (barbacans)

• 2,000 m³ of reinforced concrete works

• 1,600 tons of reinforcement steel

• 12,500 m² of shotcrete application

• 356 m of inclinometers

• 266 m of extensometers

• 148 m of piezometers

• 8 load cells

Ground behavior and structural performance were continuously monitored throughout the works.

Slope Stability and Long-Term Safety Works

To ensure slope safety and long-term stability, the following works were completed:

• 30,000 m³ of excavation

• 43,000 m³ of fill

• 1,845 m² of geogrid installation

• 7,300 m of bored piles

• 1,000 m³ of reinforced concrete works

• 2,600 m² of shotcrete application

• 150 m of inclinometers

• 100 m of extensometers

• 135 m of piezometers

• 1,400 tons of structural steel

• 5,000 tons of reinforcement steel

• 66,000 m² of concrete paving areas

• 23,000 m² of reinforced concrete structures

Tank Construction Works

Additionally, over a total area of 110,000 m², the following tanks were constructed:

• 2 crude oil tanks, each with a capacity of 134,500 m³

• 2 intermediate petroleum product tanks, each with a capacity of 36,500 m³

Within this scope, 1,000,000 m³ of excavation and 140,000 m³ of granular fill works were completed.

Civil and Mechanical Works

Through the COFOT Project, the refinery’s storage capacity was increased while operational flexibility was enhanced. The project provided a total additional storage capacity of 342,000 m³, consisting of:

• 2 × 134,500 m³ crude oil tanks

• 2 × 36,500 m³ intermediate product tanks

The following works were completed as part of this scope:

• 100,000 m³ of excavation

• 90,000 m³ of fill

• 18,000 m of reinforced bored piles

• 2,100 m of concrete roads

• 63,000 WDI of process piping fabrication and installation

Electrical and Instrumentation Works

Within the scope of electrical and instrumentation works:

• All power supply lines for crude oil and fuel oil tanks owned by SOCAR A.Ş. were installed

• Measurement, control, and safety instrumentation for tanks and pipelines were installed

• Grounding, lightning protection, and fire detection systems were implemented

• Yard lighting, CCTV, and communication systems were installed and commissioned

In addition, the following installations were completed:

• Installation of 10 mixer motors and mixers

• Installation of 6 product/feed pumps and associated motors

• Partial supply and installation of instrument air, raw water, utilities, firewater, foam, and air cooler systems

Automation, Cabling, and Cathodic Protection

The following automation and electrical systems were installed:

• Switchgear, MCCs, and field panels (MOV, ESD, FSD, SLP, NLP, etc.)

• MCS, RIB, TECP, and SECP panels

• Installation of all field junction boxes (JBs)

Cathodic protection systems were applied to underground steel pipelines, and a total of 256,000 meters of medium-voltage, low-voltage, and signal cables were laid.

Fire and gas systems, telephone and CCTV systems, as well as tank level, temperature, and pressure measurement instruments—such as PT, FT, LT, TT, CT, PG, TE, MOV, PSV, check valves, and gate valves—were installed, calibrated, and commissioned.

Testing, Commissioning, and Quality Management

Within the scope of the project, the following activities were fully completed:

• Motor run tests

• Instrument calibration tests

• Cable hi-pot tests

• I/O checks

• Pipe flushing and hydrostatic tests

All Inspection and Test Plans (ITPs), Method Statements, Final Quality Dossiers (FQDs), and related quality documentation were prepared and submitted to the Employer.