Nautical Science Program, Faculty of Maritime Studies, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia.
Maritime Technology Program, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus 21030, Terengganu, Malaysia.
ScientificWorldJournal. 2020 Jul 23;2020:6957171. doi: 10.1155/2020/6957171. eCollection 2020.
. 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.
. 拖网捕捞是一种大量捕捞鱼类的方法，使用一艘或两艘船将渔网拖过水面。底拖网捕捞是指将网拖过海底。底拖网的渔具会对海底的暴露海底管道造成影响。海底管道将原油和天然气从海上平台输送到岸上设施。本研究评估了沙巴和纳闽近海的拖网捕捞活动对海底管道的风险。通过现场调查确定了沙巴当地拖网渔船使用的拖网设备规格。根据运营和现场调查的访谈计算了拖网渔船穿越管道的频率。使用 DNVGL 算法计算了鸭嘴板的拖曳力。根据文献回顾，开发了风险矩阵的严重度和频率指数。结果表明，鸭嘴板的拖曳力不会损坏管道。拖网渔船活动对管道造成的风险较低和中等。
