Patent ID: 8038368

Claim:
A system for starting up a flowline suitable for conveying hydrocarbons, the system comprising: a flowline extended over a seabed from a wellhead and terminating at a joint end of said flowline, said joint end being suitable for connection to a subsea riser, and said flowline being operable to stretch; a locking system for fixing said joint end with respect to said seabed for maintaining said flowline in a stretched position after said flowline has been stretched, said locking system including a unidirectional arresting device operable to allow displacement of said joint end in a direction of elongation of said flowline and to prohibit displacement of said joint end in an opposite direction; a guidance system including a movable trolley, said joint end is being connectable to said trolley; and a slide device on which said movable trolley is slidable in said direction of elongation of said flowline.