Decom TAQA Brae Bravo JacketTAQA Brae Bravo 导管架退役

Heerema Marine Contractor is awarded by TAQA Group (UK) to provide EPRD (Engineering, Preparations, Removal, and Disposal) contract of topside and jacket for its Brae Bravo platform located in Brae Field, offshore UK in the North Sea. Simu Engineers bv is providing structural analysis for the main jacket removal which the dry weight is approximately 22,000mT. The main jacket structure has 8 legs and is secured to the seabed by 32 skirt piles that are grouted to the jacket structure. The main jacket is installed in 99.5 m water depth. The upper section of the jacket will be removed in one section by SSCV Sleipnir and the lower section will be left in situ. The engineering deliverables include numerous cutting stage analysis with topside load fully present, partially present and against various environmental condition scenarios for operation for SSCV Sleipnir. Redundancy analysis and fatigue analysis also performed due to the fact that the jacket will be left at situ with less legs which are pre-cut during the topside removal campaign.TAQA 集团（英国）授予 Heerema Marine Contractor 其位于北海英国海域 Brae 油田的 Brae Bravo 平台上部模块与导管架的 EPRD（工程、准备、移除与处置）合同。Simu Engineers bv 为干重约 22,000 吨的主导管架移除提供结构分析。主导管架有 8 条腿，由 32 根灌浆裙桩固定于海床，安装水深 99.5 米。导管架上段将由 SSCV Sleipnir 整体移除，下段留在原位。工程交付物包括上部荷载完全存在、部分存在及多种环境工况下针对 Sleipnir 作业的多个切割阶段分析。由于上部移除期间部分腿柱已预切割、导管架将留在原位，还进行了冗余分析与疲劳分析。