marine riser section, method for mounting a riser column, riser column, and vessel.

摘要

a drilling marine riser section comprises a main marine riser with radially extending flanges and multiple auxiliary pipes comprising at least one choke line and a kill line. one or more clamps retain the auxiliary tubes. In addition, the riser section has thrust members. the choke line and kill line are connected to each of the flanges in a tensile load sharing arrangement, so that? in vertical use orientation of the riser section in a riser column? the weight tension is distributed on the main marine riser and choke line and kill line. the thrust members form an exterior of the riser pipe section opposite flat and top stacking faces opposite and parallel to the geometrical axis of the main marine riser, allowing the stacking of riser sections in horizontal orientation. the choke line and the kill line are arranged diametrically opposite each other and in between as flat bottom and top stacking faces.