Article

Trend of the environmental supervision on submarine pipeline installation

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  • Third Institute of Oceanography,Ministry of Natural Resources,
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... While the majority of the articles we draw upon for the narrative review have employed in-depth case studies using a variety of qualitative and quantitative methods [8,42,[106][107][108][109][110][111][112][113][114], some studies have used oceanographic and other natural science approaches (e.g. [115][116][117]65,41]). There have also been some important literature surveys conducted on the topic in the past decade as well as those that are more agenda-setting pieces for meaningful policy-making (see [118,97,119,28,40,120]). ...
... Offshore oil platform placement and well drilling, submarine pipelaying, and coastal port and refinery construction can mobilize marine sediments and disturb benthic organisms [65,66], resulting in permanent loss of physical habitat and mobilization of contaminants into marine food webs [121]. Coastal oil ports and refineries result in permanent shoreline alteration and loss of productive nearshore habitats such as mangroves, seagrass beds, estuaries, and kelp forests which serve as critical habitats for early life stages of many commercially valuable fishes and invertebrates-serving to increase mortality and potentially decrease fishery productivity. ...
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A quarter of global oil production comes from offshore fields and about 60% of internationally-traded oil travels by tankers. The relationship between oil, fisheries, and coastal communities is documented primarily through case studies in individual jurisdictions and via the impacts of oil spills. Yet, the implications of oil development for fisheries and coastal communities are much broader. This study provides an extensive review of the effects of oil development in relation to four interconnected themes: 1) the environment, including marine habitats and fish; 2) small-scale fisheries and coastal community livelihoods; 3) coastal and ocean spaces, including disputes over territory and infrastructure; and 4) ocean and coastal governance processes. We map spatial overlaps between the oil sector and small-scale fisheries and point to the frequent displacement of fishers from fishing grounds due to increasing coastal traffic and infrastructure, and the catastrophic effects of oil spills on fisheries and coastal economies. Though the oil sector generally has negative impacts on fisheries livelihoods and coastal communities, these effects and their mechanisms vary across locations, ecosystems, species, and specific activities and groups. Overall, this narrative review provides a comprehensive account of the scholarship to date and points to key themes for future research, including intersections between offshore oil and gender, cross-sectoral governance, and the achievement of Sustainable Development Goal 14. Underpinning all of these challenges and potential solutions is a clear need for stronger integration of social and natural science knowledge, perspectives, and tools.
... Pipelines laid on the seabed are like arteries for offshore oil and gas transportation. Due to their key role in the exploitation of offshore oil and gas resources, many studies are devoted to them [1][2][3][4]. They are subject to a large variety of damages and defects [5][6][7]. ...
Article
The objective of this study was to demonstrate the feasibility of localising and detecting hydrate plugs inside submarine pipelines, in situ and contactless, using neutron-induced analytical techniques. Cold and fast neutron-beam instruments at Heinz Maier-Leibnitz Zentrum (MLZ) were used to show that neutrons penetrate through the thick wall and the insulation of such pipes and even the induced gamma radiation can be detected outside to perform a non-destructive chemical analysis within the pipe. It was found that the change in the hydrogen concentration caused by a possible hydrate plug can be detected in seconds; while with a detailed analysis at a given spot lasting for a few hours, it is possible to unambiguously identify the hydrate phase inside the hydrocarbon phase.
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