Analisis Risiko Pada Subsea Aging Pipeline Untuk Menentukan Economical Life Assessment

Jiwani, Thoriq Favian (2025) Analisis Risiko Pada Subsea Aging Pipeline Untuk Menentukan Economical Life Assessment. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Untuk mencapai efisiensi yang optimal dalam industri minyak dan gas proses transportasi dan distribusi merupakan faktor krusial. Sebagian besar perusahaan yang bergerak di bidang minyak dan gas didukung dengan subsea pipeline sebagai distribusi dan transportasi dalam jumlah yang sangat besar dan jarak yang jauh. Seiring dengan bertambahnya umur lapangan produksi, menghadirkan tantangan untuk mengelola aset seperti subsea pipeline yang sudah menua dan telah melewati masa desain awal. Hal tersebut pastinya memiliki risiko tinggi yang memengaruhi penurunan integritas subsea pipeline dan kerugian ekonomi. Diperlukan analisis risiko untuk mengidentifikasi dan meminimalisir terjadinya kegagalan pada subsea aging pipeline. Risiko tersebut dianalisis menggunakan metode Failure Mode and Effect Analysis (FMEA) dan Bayesian Network (BN) untuk mengetahui risiko kegagalan yang dapat terjadi. Berdasarkan penilian risiko pada dua metode tersebut didapatkan mekanisme kegagalan tertinggi ialah tekanan pada pipa berlebih. Maka dari itu penulis mengusulkan aktivitas maintenance untuk memperpanjang umur hidup subsea pipeline dengan mempertimbangkan biaya. Biaya perpanjangan hidup pada subsea aging pipeline diperhitungkan dengan beberapa aspek yaitu; biaya maintenance, biaya kerugian akibat kegagalan, dan keuntungan perpanjangan hidup subsea aging pipeline.
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To achieve optimal efficiency in the oil and gas industry, the transportation and distribution process is a crucial factor. Most oil and gas companies are supported by subsea pipeline for distribution and transportation of large quantities and long distances. As production fields age, it is challenging to manage assets such as subsea pipeline that are aging and past their original design life. This inevitably carries a high risk of compromising the integrity of subsea pipeline and economic loss. A strategic plan using risk analysis methods is required to identify and minimize the occurrence of failures in subsea aging pipeline. The risk is analyzed using the Failure Mode and Effect Analysis (FMEA) and Bayesian Network (BN) methods to determine the risk of failure that can occur. Based on the risk assessment in the two methods, a failure mechanism with an RPN value of 111 was obtained, while the Bayesian Network results also showed the same failure rating. Therefore, the author proposes maintenance activities to extend the life of subsea pipeline by considering costs. The cost of extending the life of the subsea aging pipeline is calculated with several aspects, through; maintenance costs, failure losses cost, and the profit of extending the life of the subsea aging pipeline.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Subsea Aging Pipeline, Analisis Risiko, Failure Mode and Effect Analysis (FMEA), Bayesian Network (BN), Penilaian Ekonomi, Subsea aging pipeline, Risk Analysis, Failure Mode and Effect Analysis (FMEA), Bayesian Network (BN), Economical Assessment
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures T Technology > TS Manufactures > TS174 Maintainability (Engineering) . Reliability (Engineering)
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Thoriq Favian Jiwani
Date Deposited:	22 Jan 2025 07:56
Last Modified:	22 Jan 2025 07:56
URI:	http://repository.its.ac.id/id/eprint/116606

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