Historic scale and persistence of drill cuttings impacts on North Sea benthos.
Historic scale and persistence of drill cuttings impacts on North Sea benthos.
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DOI：
10.1016/j.marenvres.2017.05.008
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发表时间：
2017-08
影响因子：
3.3
通讯作者：
L. Henry;Dan Harries;P. Kingston;J. M. Roberts
中科院分区：
文献类型：
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作者：
L. Henry;Dan Harries;P. Kingston;J. M. Roberts
尽管联合王国有开采碳氢化合物的悠久历史，但缺乏监测钻屑（从威尔斯井中挖出的岩石材料与钻井泥浆的混合物）对生态影响的科学规程。本研究使用英国底栖生物行业数据库应用标准化方差划分和测量的规模和持久性，这些影响在19个网站在英国北海部门。一般来说，影响仅限于距离平台1公里的范围内，但历史上使用油基泥浆钻探的两个平台受到了1.2公里以外的影响。在北海北方和中部，影响持续了至少6至8年，但在南部没有发现，因为那里的岩屑堆没有堆积。这项研究支持新的建议，实施区域，基于阶段的方法来监测钻屑，并在考虑退役方案，将最大限度地减少干扰岩屑堆应用预防方法。
Despite its long history of hydrocarbon exploitation, the United Kingdom lacks scientific protocols to monitor ecological impacts of drill cuttings (mixtures between rocky material excavated from wells and drilling mud). The present study used the UK Benthos industry database to apply standardised variance partitioning and measure the scale and persistence of these effects at 19 sites across the UK sector of the North Sea. Generally, effects were limited to within 1 km from the platform, but two platforms historically drilled with oil-based mud were impacted up to 1.2 km away. Impacts persisted for at least 6–8 years in the northern and central North Sea, but were undetectable in the south where cuttings piles do not accumulate. This study underpins new recommendations to implement regional, phase-based approaches to drill cuttings monitoring, and to apply a precautionary approach in considering decommissioning options that will minimise disturbance to cuttings piles.