ABSTRACT

This paper proposes a new concept of an innovative deepwater production system (DPS) centred on the suspension cluster manifold (SCM), which avoids the direct impact of the seabed topography and solves the recovery problem of the traditional manifold. In this DPS, the configuration of the new steep wave riser (NSWR) is essential in achieving the stability of the SCM exposed to the loading of fluid density and ocean current. The lumped mass method was used to obtain its static configuration. The numerical model, comprising SCM and NSWR, employed the quasi-static analysis to analyse the influence of the NSWR configuration on the static stability of the SCM, and to acquire a suitable NSWR configuration. Finally, the application of this DPS was demonstrated by designing the cluster layout with six wellheads, and a coupled model was built to analyse the SCM stability. The results showed that the model exhibited excellent stability.

摘要

本文提出了一种以悬浮集群管汇（SCM）为核心的创新型深水生产系统（DPS）的新概念，避免了海底地形的直接影响，解决了传统管汇的采收问题。在该 DPS 中，新陡波立管 (NSWR) 的配置对于实现 SCM 在流体密度和洋流负载下的稳定性至关重要。集中质量法用于获得其静态配置。数值模型由单片机和NSWR组成，采用准静态分析方法分析了NSWR构型对SCM静稳定性的影响，得到了合适的NSWR构型。最后，通过设计具有六个井口的集群布局，展示了该 DPS 的应用，并建立耦合模型来分析单片机的稳定性。结果表明，该模型表现出良好的稳定性。