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The cluster manifold becomes an essential part in a subsea production system, which can gather the production fluid from subsea wells and distribute water, gas and chemical agents from the floating production system to each subsea well. On account of its advantages such as a small initial investment, being installed before arrival of floating platforms, and optimizing the layout of the subsea production system, the manifold system has been widely used in the development of ultra-deepwater oil and gas fields. But many factors affect the layout design of cluster manifold. In addition, due to the particularity of deepwater target reservoir, uncertainty of project construction, and oil company short and long term marketing strategy etc., the engineers’ rich experiences are highly demanded in the layout of cluster manifolds. In this paper, a new mathematical model concept is presented and the mathematical models for the layout of cluster manifold are roughly proposed. Meanwhile, the challenges in relation to the partition problem of subsea wells and the connection paths between subsea facilities are analyzed. The optimization layout of cluster manifold using the mathematical model is an exploratory attempt, which can provide a quantized reference to the engineers for the evaluation of the optimal scenario. Keywords-subsea production system; cluster manifolds; optimization concept; challenges

A New Mathematical Model Concept and Challenges in relation to the Layout of Cluster Manifolds