Reliability Analysis of Floating Facilities Mooring System

Akbar, Dante Taufiq (2017) Reliability Analysis of Floating Facilities Mooring System. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada 23 Januari 2014, terjadi kecelakaan berat di Fasilitas Penyimpanan Terapung atau Floating Storage Offloading (FSO) Cinta Tanomas. Mooring Hawser dari FSO Cinta Natomas putus dan membuat distribusi minyak mentah dari Central Processing Area berhenti. Karena insiden ini, FSO tersebut hanyut beberapa ratus meter ke arah timur dan membuat floating hosenya putus. Dilain sisi, selama tahun 1997 – 2012 ternyatat terdapat 107 insiden mooring di 73 fasilitas di seluruh dunia. Hal ini dikarenakan beberapa alasan diantaranya adalah operasional, perawatan, manufaktur dan transportasi. Terdapat 2 rekomendasi yang diberikan oleh BP selaku peneliti dari kejadian ini. Pertama adalah merawat mooring line dan yang kedua adalah menggunakan data yang terukur seperti data metaocean, data tegangan rantai dan sebagainya untuk memaksimalkan perhitungan dan perencanaan.

Untuk mencegah kecelakaan atau insiden selama proses produksi berlangsung, diperlukan sebuah analisa keandalan terhadap mooring FSO tersebut. aktifitas ini bertujuan untuk menganalisa sejauh mana fasilitas mooring dapat membantu proses produksi dan menyusun perawatan agar fasilitas mooring dapat bekerja sesuai perencanaan.

Satu dari banyak model Single Buoy Mooring adalah Caternary Anchor Leg Mooring atau CALM Buoy. Beban dinamis membuat calm buoy bergerak secara periodik. Hal ini menghasilkan kelelahan pada rantai mooring sbm. Dengan banyaknya faktor yang membahayakan tersebut maka Single Buoy Mooring harus memiliki keandalan yang tinggi.

Bachelor Thesis ini diharapakan dapat menjadi salah satu acuan untuk menganalisa keandalan dari mooring line dan sebagai rekomendasi baru untuk perawatan Single Buoy Mooring
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On January, 23rd 2014, Floating Storage Offloading (FSO) Cinta Tanomas got force majeure. Mooring Hawser of FSO Cinta Tanomas was broken and made crude oil distribution from Central Processing Area is stopped. Because of this incident, FSO swept a few hundred meters to east and make floating hose broken. During 1997 – 2012 there are 107 mooring incidents 73 facilities across the industry (1997 – 2012). The causes were operation, maintenance, manufacturing and transport. There are two recommendations for mitigation measures along the service: Maintain the mooring line supporting o-board the floater and Use of the measure data (e.g. Met-Ocean, line Tension, Offset, etc.).

To prevent any accident or any incident during production process, we need to do some reliability analysis of mooring in FPSO. These activities are to analyze how long the mooring system could support production process and the maintenance planning to slow any decreasing performance from the mooring leg. One of sbm type is Catenary Anchor Leg Mooring or CALM Buoy. Usually CALM buoy operated in (open water). Dynamic load will make CALM buoy move periodically. This movement given fatigue to mooring leg. Mooring Legs need high reliability to support the operation. Reliability analysis is needed Because of those factors.

This bachelor thesis expected could be a new guidance to analyze reliability of mooring line and as new recommendation for maintenance Single Buoy Mooring

Item Type:	Thesis (Undergraduate)
Additional Information:	RSSP 623.83 Akb r
Uncontrolled Keywords:	Keandalan, Mooring, FSO, Mean Value First Order Second Moment, Lifetime
Subjects:	Q Science V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Dante Taufiq Akbar
Date Deposited:	27 Oct 2017 02:22
Last Modified:	09 Jan 2018 07:11
URI:	http://repository.its.ac.id/id/eprint/47383

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