Riser section for assembling a riser for deep-sea oil drilling and production comprises connectors on the ends of a main pipe and on the ends of auxiliary lines whereby longitudinal forces can be transmitted

摘要

#CMT# #/CMT# Riser section comprising a main pipe (2) and auxiliary lines (3) mounted parallel to the main pipe comprises connectors (8) on the ends of the main pipe and connectors (5, 6) on the ends of the auxiliary lines whereby longitudinal forces can be transmitted. #CMT# : #/CMT# An independent claim is also included for a rise comprising at least two sections as above assembled end-to-end so that the auxiliary lines on one section can transmit longitudinal forces to the auxiliary lines of another section to which is attached. #CMT#USE : #/CMT# Riser section for assembling a riser for deep-sea oil drilling and production. #CMT#ADVANTAGE : #/CMT# The auxiliary lines participate together with the main pipe in taking up longitudinal forces applied to the riser (compare ). #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a riser section as above. 2 : Main pipe 3 : Auxiliary lines 5, 6 : Auxiliary line connectors 8 : Main pipe connector. #CMT#CHEMICAL ENGINEERING : #/CMT# Preferred Riser Section: The auxiliary lines are rigidly fixed to the main pipe. The main pipe connectors are bayonet connectors. The auxiliary line connectors are bayonet or screw connectors. Rotation of the main pipe connector causes the auxiliary pipe connectors to rotate. The main pipe and auxiliary lines are steel pipes wound with composite tape. The tape comprises glass, carbon or aramid fibers embedded in a polymer matrix.