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Subsea pipeline risk assessment using formal safety assessment method : application in decision making and determining effective capital cost | |
Author | Juliardi, Yarlindra |
Call Number | AIT Thesis no.OTM-13-06 |
Subject(s) | Underwater pipelines--Risk assessment |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Offshore Technology and Management, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. OTM-13-06 |
Abstract | This researchinvestigates risk assessment of pipeline thatinstalled in Madura strait,East java, Indonesia. Risk assessment adopted a method from International MaritimeOrganization (IMO). The method which used is Formal Safety Assessment (FSA).Pipeline risk assessmentisbased on some of thehazardsthatcaused by vesselactivities.They aredropped object, dropped anchor, and the dragged anchor. Riskassessment refers to DNV-RP-F107 asthe standard level of risk.This research has declared that the pipeline has unacceptable risk to the dropped objecthazard scenario 1 when the object surface entry angel ofobject is88 degrees anditsweight2.1 tons. Moreover, pipeline also hasunacceptable riskand ALARP levelfordragged anchor hazard in scenario 2 and 3. Where,theyhavevariation of sea currenttovelocityas big as 1 knot and 1.5 knot respectively and its anchor mass around1.5 to 3tons.However,risk of pipeline caused bydropped anchor hazard is at acceptable level.Pipeline should be mitigated by some mitigation that can reduce consequence level.This research suggest to use mattress as much as 3, 4 and 5 layers to reduce risk levelbe acceptable level for every hazard and scenarios.On the other side, mattresshas costbenefit value more than 1. That meansmattress is not effective as mitigation in this study. |
Year | 2013 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. OTM-13-06 |
Type | Thesis |
School | School of Engineering and Technology (SET) |
Department | Department of Civil and Infrastucture Engineering (DCIE) |
Academic Program/FoS | Offshore Technology and Management (OTM) |
Chairperson(s) | Chiu, Gregory L.F. |
Examination Committee(s) | Poovadol Sirirangsi;Sarunphong Articharte;Trika Pitana |
Scholarship Donor(s) | Directorate General of HigherEducation (DIKTI)Ministry of Education and Culture, Indonesia |
Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |