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Handling free gas in deep and ultra-deep water drilling risers: A technical review and safety case explanation

机译：在深水和超深水钻探冒口中处理自由气体：技术回顾和安全案例说明

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The Macondo well blowout, also referred to as the Deepwater Horizon Disaster, changed the safety case towards the capable and safe handling of the free gas present in ultra-deep water riser strings. This paper is a technical review that discusses the fundamental physical phenomena of free gas contained in drilling fluids, its behaviour under the conditions present in ultra-deep water drilling risers, and its migration to the surface. The technical advances of post-Macondo riser gas handling (RGH) systems are presented and the safety criticality of such systems as an integral component of the safety case for deep water drilling installations is also explained. Finally, a parallel architecture aspect of a RGH system when installed, and operated in conjunction with a closed managed pressure drilling system is described.
机译：Macondo井喷又称为“深水地平线灾害”，将安全案例转向了能够安全处理超深水立管管柱中的游离气体。本文是一项技术综述，讨论了钻井液中所含游离气体的基本物理现象，超深水钻探立管中存在的条件下其行为以及其向地面的迁移。介绍了Macondo后立管气体处理（RGH）系统的技术进步，并解释了此类系统作为深水钻井装置安全案例必不可少的组成部分的安全重要性。最后，描述了RGH系统的并行架构方面，当其被安装并与封闭的受控压力钻井系统一起操作时。

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