Types of offshore structures used very much today, but most of the offshore structure is currently used for exploration and exploitation of oil and natural gas. The types of offshore construction can be seen as below:
1. Jacket or template
Jacket developed for operation in shallow sea and the sea was basically a thick, soft and muddy. After the jacket is placed in the desired position, pile inserted through the leg and buildings with hammer until dipancang penetrate hard soil layers and then installed and welded deck.
2. Tower
Tower is also installed with the help of jacket but can be operated in the deep ocean. Like the jacket type or template, inserted through the pile jacket and stuck to the ground hard. Then the tower was placed on the jacket. In general, a buoyancy towers (self-Buoyant) because the jacket could not sustain the burden is too heavy. Deck mounted and the welding on the tower.
3. Caissons
A small platform with a small deck required for operation in shallow sea (less than 60 m) with oil content that is not much.
4. Concrete Gravity Platform
This type of platform installed when the ground hard on the sea floor not far from the surface of the mud. The foundation made a circular structure made of concrete. This heavy foundation supports a steel tower and deck.
5. Steel Gravity Platform
Type of platform was built when the seabed soil consists of hard rock.
6. Hybrid Gravity Platform
The base platform is made of concrete and concrete where the steel frame supporting a steel deck is placed.
7. Compliant Structures
This type of structure will be moved if there is external force acting on it. This is because the edges are not great. This structure is usually attached to the seabed, such as guyed tower and a single belay system (single point mooring system), TLP (Tension Leg Platform) as well as other floating structures.
1. Jacket or template
Jacket developed for operation in shallow sea and the sea was basically a thick, soft and muddy. After the jacket is placed in the desired position, pile inserted through the leg and buildings with hammer until dipancang penetrate hard soil layers and then installed and welded deck.
2. Tower
Tower is also installed with the help of jacket but can be operated in the deep ocean. Like the jacket type or template, inserted through the pile jacket and stuck to the ground hard. Then the tower was placed on the jacket. In general, a buoyancy towers (self-Buoyant) because the jacket could not sustain the burden is too heavy. Deck mounted and the welding on the tower.
3. Caissons
A small platform with a small deck required for operation in shallow sea (less than 60 m) with oil content that is not much.
4. Concrete Gravity Platform
This type of platform installed when the ground hard on the sea floor not far from the surface of the mud. The foundation made a circular structure made of concrete. This heavy foundation supports a steel tower and deck.
5. Steel Gravity Platform
Type of platform was built when the seabed soil consists of hard rock.
6. Hybrid Gravity Platform
The base platform is made of concrete and concrete where the steel frame supporting a steel deck is placed.
7. Compliant Structures
This type of structure will be moved if there is external force acting on it. This is because the edges are not great. This structure is usually attached to the seabed, such as guyed tower and a single belay system (single point mooring system), TLP (Tension Leg Platform) as well as other floating structures.
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