Technip offers a broad range of floating platform solutions for moderate through to ultra deepwater applications.
The Heidelberg Spar will be the 17th delivered by Technip (out of 20 worldwide) and thus demonstrates the Group’s leadership for this kind of floating platform and ability to tackle ultra-deepwater developments. In a water depth range of 590 – 2,382 meters, Technip uses both dry and wet tree completions. Technip built 14 of these Spar hulls (two of which are currently being built) for deployment in the Gulf of Mexico, at its Pori yard in Finland. The Kikeh platform (including topsides) was built at MMHE’s yard in Malaysia for deployment offshore Sabah. Low motions make the Spar ideal for supporting Steel Catenary Risers (SCRs). The Spar can support full drilling facilities or accommodate Tender Assisted Drilling (TAD). The Spar technology continues to evolve with new innovations for:
- Ultra harsh environments in the Northern North Sea
- Ice resisting structures and moorings for the Arctic region
- Condensate storage for remote gas field developments
- Open sea floatover installation of large topsides
Technip has designed the topsides for three Petrobras deepwater production semis for deployment offshore Brazil. Technip was also responsible for the engineering and supervision of the topside installations by floatover. The 3 projects, P51, P52 & P56 represent the largest topsides floatovers onto semi hulls in the world. Semi platforms are suitable for mid and deepwater production and drilling operations with a large topside capability up to ca 40,000 tonnes. Good motions permit the use of SCRs in deepwater (but not dry trees). Technip is developing its own semi-submersible hull design – to be available globally through its Integrated Platform for Analysis & Design software module. This semi-sub hull design is being developed for both wet and dry tree applications.
Tensioned Leg Platforms (TLPs)
In water depths up to 1,500 meters, the Tensioned Leg Platform (TLP) offers a cost-effective platform for supporting dry trees. Technip has worked with experienced TLP designers to develop its own conventional TLP design. Market-ready designs are available for South East Asia that can utilize Tender Assisted Drilling (TAD). These designs, and others incorporating full drilling, can be readily adapted to other regions.
Floating Production Storage and Offloading Units (FPSO’s)
Technip has delivered some of the largest Floating Production, Storage & Offloading (FPSO) units in the world. These systems, in which production and storage facilities are housed in a ship hull, are appropriate for developing large deposits in deep or ultra deepwaters, or to start early production for operators’ needs. They are also well-adapted to regions where few subsea export infrastructures exist such as in West Africa or offshore Canada, in Newfoundland.
Technip’s track record includes the largest FPSO topsides ever built, at 37,000 tonnes, for the Akpo FPSO. Other major references include Nkossa (30,000-tonne topsides FPS), Girassol (32,000-tonne topside FPSO) and Dalia (24,000-tonne topside FPSO). FPSOs are suitable for mid and deepwater floating platforms for the production of oil or gas /condensate with storage of the stabilized liquid products in the hull. FPSO motions require the use of flexible risers or hybrid risers (with flexible jumpers). Technip can evaluate and specify subsea processing solutions where required by the field architecture. Together with its Subsea, Umbilicals, Risers and Flowlines (SURF) capability, Technip can deliver the infrastructure for a complete field development.
Deep Draft Semi-Submersibles (DDSS) & Extendable Draft Platforms (EDP)
Technip has 2 deep draft semi-submersible design options for supporting dry trees, both with the same wetted hull design that provides low motion performance.
The Deep Draft Semi Sub (DDSS) is configured with floatover topsides, building on the successful wet mate installation of the Petrobras P51, P52 and P56 semi topsides. Topside weights of up to 30,000 tonnes are readily achievable using this method. The Extendable Draft Platform (EDP) on the other hand lowers the wetted hull structure from its floating deckbox. This enables quayside integration of the topside facilities with the hull structure. Topside weights of up to 50,000 tonnes are achievable using this integration method.
A small scale unmanned EDP has been designed for use as an ocean science measurement buoy and, slightly larger, as a control buoy, supplying electrical and hydraulic power and controls to remote subsea developments.