PT XYZ is one of the oil and gas exploration and production companies operating in Gresik, East Java, transporting three-phase liquid dry gas from Well Head Platform A (WHPA) to onshore processing facilities (OPF) through 18-in. subsea pipeline. In addition to the occurrence of the accident, some activities close to and intersect with the pipeline channel PT. XYZ is observed to increase in line with the development of industrial activities and rapid traffic of sea transportation at Madura strait. The purpose of this research is to obtain a description of the risk profile and the risk level of the pipeline in case of oil spill, especially in dense populated areas and Madura strait, using bowtie analysis. The results of study showed that there are several segments of the pipelines that have low relative risk (RR) with the value of 1.2, 2.1, and 2.4, while the average RR value is 2.8, with the probability of survive value ranging from 72.5% to 81.5%. It shows that the risk of accidents and the impact of environmental consequences are greater than those of the other pipeline segment. According to the result of this study, various mitigation and prevention efforts must be performed by PT XYZ to maintain and lower the risk level of gas transmission pipeline to acceptable levels through public education and relocation of buildings.

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使用领结分析的风险评估：天然气勘探行业的案例研究PT XYZ Gresik East Java Indonesia

PT XYZ是在东爪哇省Gresik运营的油气勘探和生产公司之一，该公司通过18英寸井将三相液态干气从Well Head Platform A（WHPA）输送到陆上加工设施（OPF）。海底管道。除了事故的发生，一些活动也靠近并与管道通道PT相交。观察到XYZ随着工业活动的发展和马杜拉海峡海上运输的快速发展而增加。这项研究的目的是通过领结分析来描述漏油情况下管道的风险状况和风险水平，特别是在人口稠密地区和马杜拉海峡。研究结果表明，管道中有几段相对风险（RR）低，分别为1.2、2.1和2.4，而平均RR值为2.8，生存概率的范围从72.5％到81.5％。结果表明，发生事故的风险和对环境的影响要大于其他管道部门。根据这项研究的结果，PT XYZ必须采取各种缓解和预防措施，以通过公众教育和建筑物搬迁将输气管道的风险等级维持在较低的水平，并将其降低到可接受的水平。