AI Article Synopsis
- Trawling is a fishing technique using nets pulled through water, with bottom trawling specifically dragging nets across the seabed, which can impact subsea pipelines that transport oil and gas.
- The study focuses on the risks of fishing trawling in Sabah and Labuan, evaluating local trawling equipment and the frequency of trawlers crossing pipelines through surveys and interviews.
- Findings indicate that the impact of trawling on the pipelines is unlikely to cause damage, with the overall risk assessed as low to moderate.
Article Abstract
. Trawling is a method of catching fish in a large volume where fish nets are pulled through water using one or two boats. Bottom trawling is where the nets are pulled over on the seabed. The gear of the bottom trawling would impact the exposed subsea pipeline, on the seabed. Subsea pipelines transport crude oil and gas from the offshore platform to shore facility. This study assesses the risk of fish trawling activities to the subsea pipelines at Sabah and Labuan offshore. The specification of trawl equipment used by local trawlers in Sabah was determined by the on-site survey. The frequency of a fish trawler crossing over the pipelines was calculated based interview on operation and site survey. The calculation of the pull-over load of the otter board was calculated using the DNVGL algorithm. The severity and frequency index of the risk matrix was developed based on literature review. Results showed that the pull-over load of the otter board would not damage the pipelines. The risk posed by the fish trawler activity to the pipelines is low and moderate.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7754072 | PMC |
| http://dx.doi.org/10.1155/2020/6957171 | DOI Listing |
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