Installation Method Selection for Heavy Weight Topside in the South China Sea Available to Purchase

This paper presents the installation selection and feasibility study of methods at the initial stage for a heavyweight topside. Both lifting and float-over methods have been studied and worldwide installation information for installing topsides similar in size and sea state are gathered for this study. The conventional lifting installation method with its advantage in mature technology was considered first. Then the float-over method with the benefits of saving offshore installation and hookup time in a single piece installation was evaluated next. The paper primarily discusses the feasibility of the float-over method used for this designated field and topside. It also examines the challenges involved in the determination of the installation method between heavy weight lifting and float-over. The decision was made after balancing risks and benefits of both methods.