Deepwater Moorings For The Green Canyon Block 29 Development

Mooring technology has been extended by the development of a mooring system that will enable the Green Canyon Block 29 Floating Production Platform (FPP) to remain on station with production risers connected in a hurricane zone. This paper reviews the development of the system design. It includes environmental criteria, application of existing design codes, method of analysis, model testing, component specifications and interaction of the system with the production riser in a connected and/or disconnected mode. The paper addresses the procurement of the system, inclusive of quality control, inspections, transportation and component preparations prior to system deployment in the field. The paper concludes with a discussion of the offshore operations performed to install the mooring system, attachment of the platform and tensioning of the anchors.