Characterisation of microbial communities of drill cuttings piles from offshore oil and gas installations.
Characterisation of microbial communities of drill cuttings piles from offshore oil and gas installations.
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DOI：
10.1016/j.marpolbul.2019.03.014
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发表时间：
2019-05
影响因子：
5.8
通讯作者：
L. D. Potts;Luis J. Perez Calderon;C. Gubry-Rangin;U. Witte;J. Anderson
中科院分区：
文献类型：
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作者：
L. D. Potts;Luis J. Perez Calderon;C. Gubry-Rangin;U. Witte;J. Anderson
钻屑(DC)是在碳氢化合物钻井作业过程中产生的，由覆盖有碳氢化合物的地下岩石和钻井液组成。DC在海上的历史性处置导致海床上形成大堆，可能会在基础设施退役后遗留下来。这项研究首次深入了解了北海油气设施中两个DC桩的微生物丰度、多样性和群落结构。DC的细菌和古菌的丰度都低于周围的自然沉积物。DC内微生物多样性和丰富度较低，但随着距离堆放距离的增加而增加。DC桩中的微生物群落结构与附近的自然沉积物相比有明显不同。DC细菌群落以嗜盐单胞菌、枯草杆菌和脱硫杆菌为主。这些微生物的存在表明了碳氢化合物降解能力的潜在作用，并可能在DC桩修复中发挥积极作用。
Drill cuttings (DC) are produced during hydrocarbon drilling operations and are composed of subsurface rock coated with hydrocarbons and drilling fluids. Historic disposal of DC at sea has resulted in the formation of large piles on the seabed that may be leftin situfollowing infrastructure decommissioning. This study provides a first insight into the microbial abundance, diversity and community structure of two DC piles from North Sea oil and gas installations. The abundance of both bacteria and archaea was lower in DC than in surrounding natural sediments. Microbial diversity and richness within DC were low but increased with distance from the piles. Microbial community structure was significantly different in DC piles compared to nearby natural sediments. DC bacterial communities were dominated byHalomonas,DietziaandDethiobacter. The presence of such organisms suggests a potential function of hydrocarbon degradation ability and may play an active role in DC pile remediation.