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77:, the production risers are conventional and are subjected to less structural demands and flexing. However, because of cost, it becomes uneconomical to build compliant towers in depths greater than 1,000 meters. In such a case a floating production system is more appropriate, even with the increased cost of risers and mooring. Despite its flexibility, the compliant tower system is strong enough to withstand
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supported (by water). They demonstrate static stability but have a much greater degree of lateral deformation/flexibility vs land-base structures, up to 2.5% vs 0.5% and are partially supported by buoyancy. It is unknown if these structures could support themselves as built if they were constructed on land. At present the deepest is the
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supporting a conventional deck for drilling and production operations. Compliant towers are designed to sustain significant lateral deflections and forces, and are typically used in water depths ranging from 1,500 to 3,000 feet (450 to 900 m). These structures are considered freestanding but media
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is reduced and wave forces are de-amplified. This type of rig structure can be configured to adapt to existing fabrication and installation equipment. Compared with floating systems, such as
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H-851. The Base Tower makes up the first 250 metres of the more than 400 metre high tower. The crane vessel that is partly visible is the
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The first tower emerged in the early 1980s with the installation of Exxon's Lena oil platform.
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With the use of flex elements such as flex legs or axial tubes,
283:"portal.mustangeng.com "Compliant Towers: The Next Generation""
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269:"Compliant Tower - an overview | ScienceDirect Topics"
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Process of launching shown on
Benguela Belize Base Tower
213:List of tallest freestanding steel structures
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46:. The rig consists of narrow, flexible (
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228:Benguela-Belize Lobito-Tomboco Platform
248:"Petronius Compliant Tower, All Areas"
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92:On April 15, 2005 the Base Tower of
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234:References
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79:hurricane
67:resonance
48:compliant
340:Category
197:See also
57:Chevron
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103:Thialf
293:(PDF)
286:(PDF)
98:barge
75:SPARs
73:and
308:KiB
44:gas
42:or
40:oil
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36:CT
30:A
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34:(
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