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Sep 21, 2013

Offshore platform from a bare patch of sea to a finished oil platform

From a bare patch of sea to a finished oil platform ready to be sparked

Types of Offshore Platforms

Types of Offshore Platforms

1. Fixed Platforms

Fixed platforms are immobile structures attached to the seabed, commonly used in shallow waters. They include:

  • Jack-Up Rigs: Equipped with legs that can be raised or lowered to reach the seabed. They are often used for temporary drilling operations.
  • Gravity-Based Structures (GBS): Massive concrete or steel structures that use their weight to stay in place on the seabed.
  • Conductor Supported Platforms: Utilize long conductors driven into the seabed to provide stability and support for the platform.

2. Floating Platforms

Floating platforms are movable structures that operate in deeper waters. They include:

  • Semi-Submersible Platforms: Supported by buoyant columns or pontoons, partially submerged to reduce movement in rough seas.
  • Tension-Leg Platforms (TLPs): Anchored to the seabed using tensioned mooring lines, maintaining stability despite surface waves.
  • FPSOs (Floating Production Storage and Offloading): Used for oil and gas production, with storage facilities for processed hydrocarbons.
  • Spar Platforms: Tall and narrow structures that float vertically, anchored to the seabed by a mooring system.

3. Subsea Templates

Subsea templates are structures installed on the seabed to support wellheads and pipelines. They include:

  • Manifolds: Connect multiple wells to a single pipeline for fluid transportation.
  • Christmas Trees: Control systems installed on wellheads to regulate flow.
  • Subsea Processing Units: Equipment used for processing hydrocarbons on the seabed, eliminating the need for surface facilities.

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