Conductor supported pulltube bundle

Abstract

A flowline system is disclosed installed within a bottom founded offshore platform having a plurality of conductor guides which are vertically aligned within a wellbay interior and structurally connected to a jacket of the platform. A conductor is supported by the jacket in the wellbay at the conductor guides. A plurality of flowlines are each connected to a remote well and run, together, within the conductor which provides lateral support to the flowlines.

What is claimed is:  
     
         1 . A flowline system installed within a bottom founded platform having a plurality of conductor guides vertically aligned within a wellbay interior and structurally connected to a jacket of the platform, said flowline bundle comprising: 
 a plurality of flowlines, each connected to a remote well and run bundled together to the wellbay within the conductor guides which provides lateral support thereto.    
     
     
         2 . A flowline system in accordance with    claim 1   , further comprising: 
 a conductor supported by the jacket in the wellbay at the conductor guides providing lateral support to the plurality of flowlines run therewithin.    
     
     
         3 . A flowline system in accordance with    claim 1   , further comprising a plurality of pulltubes run within the conductor, each pulltube surrounding one of the flowlines.  
     
     
         4 . A flowline system in accordance with    claim 1    further comprising: 
 a plurality of clamps;  
 a plurality of pulltubes bundled and secured together by said clamps, the bundle of pulltubes extending through the conductor guides.  
 
     
     
         5 . A flowline system in accordance with    claim 1   , further comprising 
 a conductor supported by the jacket in the wellbay at the conductor guides providing lateral support directly to a plurality of flowlines run therewithin.    
     
     
         6 . A flowline system in accordance with    claim 3   , further comprising a plurality of internal supports which surrounding the pulltubes within the conductors to provide direct lateral support between the conductor wall and the pulltubes.  
     
     
         7 . A flowline system in accordance with    claim 6   , wherein the internal supports are inflated diaphragms.  
     
     
         8 . A flowline system in accordance with    claim 1    further comprising preinstalled curved pulltubes connected to the base of the platform jacket and field installed vertical conductors.  
     
     
         9 . A flowline system in accordance with    claim 9    further comprising a connection between the field installed vertical conductor and the preinstalled curved pulltubes.  
     
     
         10 . A flowline system in accordance with    claim 9    wherein the connection is an interlocking cruciform plate gravity connection.  
     
     
         11 . A flowline bundle in accordance with    claim 1    wherein the conductor is an open caisson, further comprising: 
 an upper caisson section comprising field installed vertical conductor sections;  
 a lower caisson section preinstalled to the base of the platform jacket;  
 a connection between the upper and the lower caisson sections;  
 a plurality of upper straight pulltubes within the upper caisson section; a top plate connected to the top of the upper caisson section and supporting the upper straight pulltubes and the flowlines therewithin;  
 a flared downwardly facing termination at the lower end of the upper straight pulltubes;  
 a plurality of curved pulltubes preinstalled within the lower caisson section and vertically separated from the upper straight pulltubes; and  
 a flared upwardly flared termination at the upper end of the curved lower pulltubes corresponding to the flared downwardly facing termination of the upper straight pulltubes.