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•Major categories and features
According to the general structure classification
Can be divided into two broad categories, the first generation of tension leg platform and the second generation of tension leg platform;
•4
• Working characteristics
Good motor performance
Large environmental loads can be balanced by inertial forces, without the need to balance them through structural internal forces. Higher security
It can be divided into three categories: large load tension leg platform, mini tension leg platform and wellhead tension leg platform;
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•The first generation of tension leg platform
•Profile of tension leg platform
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content
The main structure Working principle and performance Build and install the process
Types and characteristics
•5
•Build and install the process
The tension leg platform usually separates the main body of the platform from the upper body and then makes a joint at se
•Working principle
The tension leg platform, through its own structural form, produces much more buoyancy than the structure itself, and the rest is called residual buoyancy. The residual buoyancy and the pretension balance.
Semi-compliant semi-rigid：
The pretension causes the tension leg to be tense in tension, so that the motion (rolling, pitching, and hanging) of the platform plane is smaller and is similar to rigidity.
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•1
•overview
Offshore platform
The rig Jacket platform Seated platform SPAR platform Production platform
Jack-up platform
Semisubmersible platform
Tension leg platform TLP
• Established in 1995, Heidrun TLP is located in the sea of 175km off the coast of Norway and works at a depth of 345m. • Heidrun TLP is the first and only concrete tension leg platform in the world. • Since 1984, there have been 11 traditional types of tension leg platforms that have been put into production in the world
According to different classification of tree of oil tree
It can be divided into two categories: wet tree platform and dry tree platform;
Categorize functions and applications
The entire installation of SeaStar TLP can be divided into four separate phases.
Stage 1: installation of seabed foundation (2 ~ 5 days). Stage 2: tension leg installation (2 ~ 5 days). Stage 3: Installation of the main body of the platform (1 day). Stage 4: installation of the upper body of the platform (1 day).
The natural frequency of motion in the plane of the platform is lower than the wave frequency, while the natural frequency of motion outside the plane is higher than the wave frequency. The water depth is 300-1500 meters