A small tension leg platform for marginal deepwater fields
This paper describes a small Tension Leg Platform, the Mini TLP, that is configured as an unmanned wellhead platform to support dry trees and minimum topside facilities. The concept has been developed as part of an ongoing process to reduce the overall cost of offshore developments in deep water. The Mini TLP concept presented has been designed for West Africa conditions with tender assisted drilling and workover operations in a water depth of 1,000 meters. In the development of this concept, particular attention has been placed on the drilling operations, well systems and the interaction between the tethers and risers. The Mini TLP is designed to be installed by the drilling contractor using the tender vessel mobilized for the drilling program. The concept is applicable to small hydrocarbon developments or phased development of larger fields in deep water where a stable platform is required to support surface wellheads. Configurations have been investigated for the West of Shetland environment in a water depth of 400 meters and for depths up to 1,500 meters in the milder conditions of West Africa with tender assisted drilling. Costs have been reduced wherever possible by keeping the design simple and by using standard components available in the industry. The result is a very low Capex facility based on proven technology.
- OSTI ID:
- 433908
- Report Number(s):
- CONF-960525-; TRN: IM9709%%342
- Resource Relation:
- Conference: 28. offshore technology conference, Houston, TX (United States), 6-9 May 1996; Other Information: PBD: 1996; Related Information: Is Part Of 28. annual offshore technology conference: Proceedings. Volume 2: Platform and marine system design; PB: 947 p.
- Country of Publication:
- United States
- Language:
- English
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