Connection system for subsea pipelines

A system for pull-in and intercoupling of first and second pipelines in a subsea position, the first pipeline and the second pipeline initially being freely suspended or having one end positioned on a sea bottom, the system comprising a bottom based manifold frame on which the first pipeline is mounted, the manifold frame having receiving means and associated means;

• coupling means for providing a pressure and fluid tight coupling between a first pipeline coupling end and a second pipeline coupling end;
• a hoisting and pulling means connectable to the second pipeline;
• a terminator and an anchor element for positioning the second pipeline in the receiving means of the manifold frame, such that the coupling end of the second pipeline faces the coupling end of the first pipeline mounted in the manifold frame;
• means for establishing relative axial movement between the first and the second pipelines to bring the pipeline coupling ends together;
• means for establishing a fluid and pressure tight coupling therebetween;
• wherein the terminator is an elongated member, comprising the end part of the second pipeline and is provided with the coupling means at the coupling end;
• a sleeve member circumscribing the terminator and providing axial displaceable support for the terminator, the sleeve member being provided with a projecting anchor element having an outer end and a top end, the anchor element being fixed to the associated means of the manifold frame and pivotally mounted on the sleeve member about a transverse axis extending therethrough, the anchor element being connected to a pulling cable, and the sleeve member being connected to the hoisting and pulling means attached to the sleeve member on the terminator;
• and a coupling tool unit lowerable from a sea surface to pull the coupling ends of the first and second pipelines together and establish the pressure tight coupling therebetween.