Guiding assembly for a piping system

A guiding assembly for a riser piping system (2) in an opening in the bottom (8) of a floating structure, said assembly permitting limited axial and angular displacement of the riser piping system (2) in said opening. The assembly comprises a prismatic anchor (1) surrounding a portion of the riser p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SELE ARNE BARRETT
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EQUIPMENT FOR SHIPPING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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Beschreibung
Zusammenfassung:	A guiding assembly for a riser piping system (2) in an opening in the bottom (8) of a floating structure, said assembly permitting limited axial and angular displacement of the riser piping system (2) in said opening. The assembly comprises a prismatic anchor (1) surrounding a portion of the riser piping system (2) and being connected thereto, an outer prismatic guide tube (4) receiving the prismatic anchor (1), the outer prismatic guide tube (4) having inner surfaces that are parallel to and equally spaced from outer surfaces on the prismatic anchor (1), and rollers (3) arranged in at least two different levels and confined in spaces (2) formed between said inner and outer surfaces, the rollers (3) permitting relative axial movement between the prismatic anchor (1) and the outer prismatic tube (4).