The Tômbua-Lândana project | Angola 

 

The Tômbua-Lândana project, Galp Energia's third field to come in production in block 14 in Angola, uses a compliant piled tower (CPT) at 474 metres, higher than the Empire State Building in New York.

This project was planned for zero gas burning, which will be processed and stored in a gas liquefaction project, and for zero discharge of produced water, which will be re-injected in the oil reservoirs.

This unit will be one of the first units in Angola's offshore to apply this technology in order to improve recovery and decrease pollution.

The field covers approximately 425 km² and is located in water depths between 200 and 2,000 metres.

The main production units include a drilling platform
and undersea pipelines as well as gas and water injection systems.

Made in eight countries, including Angola, the production facilities for the Tômbua-Lândana project were set up off the coast in order to expedite matters and make it less costly. This project came into operation in August 2009. Production is expected to peak at 60 thousand barrels per day.

Compliant Piled Tower (CPT)

At 474 metres, the compliant piled tower (CPT) of Tômbua-Lândana is one of the tallest structures ever built. This tower is the second structure of its kind to be built in Angola's offshore.

Relevant data of the project

Operation:

• Steady-state production: 60 thousand barrels per day
• Processing capacity:

     - 130 thousand barrels of oil per day

     - 210 million cubic metres of gas per day

     - 310 thousand barrels per day of water injection capacity

Dimensions, weight and capacity:

• Overall height of the tower: 474 metres, or one time and a half the Eiffel Tower
• Approximate weight: 79 thousand tonnes
• Number of beds: 120

Other data:

• Components produced in seven countries
• Water depth in the tower's location: 367 metres
• Overall number of wells: 46
• Depth of the reservoirs: between 2,454 metres and 3,200 metres
• Overall operation area: 452 km²
• Water depth: between 242 metres and 515 metres
• Pipelines: 56.7 km, of which:

     - for oil dispatch: 26.2 km

     - for gas dispatch: 30.5 km

Gas is re-injected and stored in wells, with gains for the environment – since it is not burned – and for the economy of Angola, which will market it.

Developing oil and gas reserves in Angola's deep water

Get to know the Tômbua-Lândana project by watching the video, only available in English, from our partner and operator in block 14, Chevron.