南中国海马来西亚近海油气平台海洋生物群落评价

M. Thiyahuddin, A. Rahman, Emily Hazelwood, A. Sparks, M. Benfield, M. H. Mohd, C. Tan, Yusri Yusuf, M. A. A. Rahman
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引用次数: 0

摘要

在马来西亚,许多海上石油和天然气平台的使用寿命即将结束,并将很快退役。传统的退役通常涉及将平台从海底完全移除,从而导致结构上现有海洋生物群落的破坏。rig -to- reef策略提供了一种替代方案,可以完全移除过时的、非生产性的海上油气平台,通过使用以下三种方法之一,将平台转变为永久性人工礁:部分移除或原地推翻(原位),或拖拽并放置(移至原位)。通过将作为人工礁的平台护套拆除,就地珊瑚礁化提供了一种保护平台上海洋生物的方法。然而,并非所有平台都适合从rig到reef的转换。因此,应进行退役前生物评估,以便根据具体情况确定最适当的退役战略。在这项研究中,利用远程操作的车辆,开发了一种生物评估方法,对马来西亚两个海上石油和天然气平台上的海洋生物组合进行了分类。鉴于在马来西亚平台上发现的海洋生态系统的生物数据有限,这些数据可能有助于减少平台拆除的不利影响,同时增加对海洋环境的好处。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Marine Life Assemblage Assessment at Oil & Gas Platform in the South China Sea Offshore Malaysia
In Malaysia, numerous offshore oil and gas platforms are approaching the end of their operational lifespans and will soon be scheduled for decommissioning. Traditional decommissioning typically involves the complete removal of the platform from the seabed, consequently resulting in the destruction of the established marine life communities present on the structure. A Rigs-to-Reefs strategy provides an alternative to the complete removal of obsolete, non-productive offshore oil and gas platforms, by converting the platform into a permanent artificial reef by utilizing one of the following three methods: partial removal or topple-in-place (in-situ), or tow and place (ex-situ). In-situ reefing provides a means of conserving the marine communities found on the platform by decommissioning the platform jacket in place as an artificial reef. However, not all platforms are good candidates for a Rigs-to-Reef conversion. Thus, pre-decommissioning biological assessments should be undertaken to determine the most appropriate decommissioning strategy on a case-by-case basis. In this study, a biological assessment was developed to catalog the marine life assemblages present on two offshore oil and gas platforms in Malaysia using remotely operated vehicles. Given the limited amount of biological data available on the marine ecosystems found on Malaysia’s platforms, this data may be useful for minimizing adverse impacts of platform removal, while enhancing benefits to the marine environment.
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