Synthetex was selected by Van Oord of The Netherlands to supply subsea pipeline support grout bags for a project in Africa. The subsea grout bags are used to support the pipeline over voids that exist in the sea bed. Custom filling and pressure relief valves along with tie down straps were incorporated within each bag. The underwater grout bags were placed by divers and have dimensions of up to 2.5 m long x 2.2 m wide x 0.55 m in thickness. The project involves the replacement of an oil export line for Shell Gabon. The oil export pipeline runs along the west coast of Africa from the Gamba terminal and continues 200 NM south of Port of Gentil extending to a pipeline end manifold (PLEM). A new looped dual 22-inch sea line system replaces the old 30-inch pipeline. The project is an enhancement to Gabon’s export of energy strategy.