Tension Leg Platforms (TLPs) are bottom founded floating structures which are moored at the seabed by steel tethers connected to driven piles.
Under the action of wind, waves and current a TLP moves like an "inverted pendulum" with negligible heave, pitch and roll motions and maintains a near constant distance between the platform and seabed. For this reason, TLPs can be used to drill and/or produce Oil and gas wells using dry trees with top tension risers or produce satellite wells via wet trees and Steel Catenary Risers (SCRs) for a variety of water depths, sea conditions and payloads.
A TLP is a very versatile facility in a field development plan. It can be used as a standalone production facility with or without drilling/workover and in areas of the world lacking a pipeline infrastructure it can be deployed as a wellhead platform connected to an FPSO.