The project involves the production of crude oil and associated gases extracted from the fields through a combination of offshore processing facilities and pipeline systems to transport crude oil and gases from Kashagan, located in the northern Caspian Sea about 80 km southeast from the city of Atyrau, to a new ground processing facility (OPF), called Eskene West, 40 km east of Atyrau, where oil and gases are treated and conditioned for their transfer to an infrastructure through pipeline systems. land.
The entire pipeline system from the Kashagan fields includes two dedicated 28” main pipelines, with a length of about 95 km, which go north with an approximate length of 66 km. The main pipelines continue to land towards the OPF fence.
To supply fuel gas to offshore processing facilities, an 18" fuel gas line will also be installed in the same corridor as the pipeline and on an invasion parallel to the main 28" pipes to supply fuel, gas from the OPF to the offshore processing.
In addition to the installation of the pipelines, a SCADA system with two fiber optic cables will allow communications and controls between the structure on land, the measurement stations and the offshore structures.
From an environmental point of view:
- the depth of the water is very low in the development area (ranges from about 4 m in the Kashagan oil field to 0 m near the beach)
- there are seasonal and annual changes regarding the water level in the Caspian Sea
- the sea freezes during the winter season
- the field contains oil with a high level of associated acid gas (up to 18% H2S).
Nautilus: main connection lines and production of flow lines
- Assistance in the arrangement and preparation of vessels for very shallow water ("Mondine") and the post-excavation device ("Gerris")
- Appropriate training for staff who will operate in the area
- Preparation of the corridor for laying the coils of pipes
- Post-excavation operations.