Marine riser section for subsea wellbore related operations

A marine riser section comprising:

• a main riser pipe, said main riser pipe having an axis and a length, wherein said main riser pipe is provided with a radially extending flange at each end thereof;
• multiple auxiliary pipes disposed on the outside of and parallel to the riser pipe, said auxiliary pipes comprising a choke line and a kill line;
• one or more clamps distributed along the length of the main riser pipe and secured to said main riser pipe, said one or more clamps being adapted to retain said choke line and said kill line relative to the main riser pipe;
• and
• buoyancy members,
• wherein the choke line and the kill line are connected to each of the flanges in a tensile load sharing arrangement with a tensile load transferring connection assembly between each of the choke line and kill line and each of the flanges, so that —in vertical use orientation of the riser section in a riser string —weight stress is distributed in the main riser pipe and the choke line and the kill line,
• wherein the buoyancy members form an exterior of the riser section including diametrically opposed and parallel flat bottom and top stacking faces relative to the axis of the main riser pipe, allowing stacking of riser sections in horizontal orientation with the flat bottom stacking face resting on the flat top stacking face of an underlying riser section, the flat bottom and top stacking faces being parallel with the axis of the main riser pipe, and
• wherein the choke line and the kill line are arranged diametrically opposite from one another relative to the axis of the main riser pipe and between the flat bottom and top stacking faces, in a plane normal to a plane coplanar with the flat bottom stacking face or the flat top stacking face, and
• wherein the buoyancy members form the exterior of the riser section including diametrically opposed curved faces relative to said plane normal to the plane coplanar with the flat bottom stacking face or the flat top stacking face.