Remote Connection Systems for Subsea Pipeline Tie-Ins and Repairs

Abstract

A range of Mechanical Pipeline Couplings and Pressure Test Caps which are capable of connecting and sealing a wide range of steel pipework with diameters up to 48″ and with internal pressures in excess of 10,000 psi has been developed and is now rapidly gaining market acceptance.

The Couplings have been designed to replace the more traditional methods of pipeline connection such as API/ANSI Flanges, clamp type connectors and even joining by welding.

The system is a bolted, gasketed Coupling that does not require any welding to provide a permanent connection that has been proven by Det Norske Veritas and Lloyds to be equally as strong as a butt welded connection.

The Coupling has been extensively third party tested and its performance has allowed engineers to specify its use on applications where mechanical connectors would not have previously been considered.

The MORGRIP coupling has been used on applications both Topside and for subsea pipeline tie ins and repairs.

The Coupling system is currently being adapted for operation by an R.O.V. which will eliminate the need for diver intervention and will offer a cost effective solution to the problem of deep water connections.