Pemilihan Metode Decommissioning Struktur Jacket Platform Dengan Analytic Hierarchy Process (AHP)

Saujana, Akabrito Amsal Dewa (2022) Pemilihan Metode Decommissioning Struktur Jacket Platform Dengan Analytic Hierarchy Process (AHP). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kebutuhan akan energi yang sangat besar menyebabkan kebutuhan migas semakin melonjak. Kandungan migas di darat dan laut dangkal semakin menipis sehingga kegiatan eksplorasi dan eksploitasi migas dilakukan dilaut dalam.. Anjungan lepas pantai minyak dan gas memiliki masa pakai antara 20-25 tahun. Saat anjungan telah mencapai batasan operasionalnya anjungan harus di bongkar (decommissioning). Platform decommissioning adalah menghentikan operasi bangunan lepas pantai. Ada 4 metode decommissioning platform yaitu Complete Removal, Partial Removal, Toppling in Place, dan Leave in Place. Aktivitas decommissioning memiliki risiko kecelakaan yang tinggi dan berdampak kepada lingkungan maupun keselamatan manusia. Oleh karena itu, diperlukan analisis pemilihan metode decommissioning yang tepat, estimasi durasi & biaya proses decommissioning serta analisis resiko pada proses decommissioning platform untuk membuat rencana pencegahan kecelakaan. Studi kasus penelitian ini adalah platform X milik PT. PHE ONWJ. Penelitian dilakukan analisis pemilihan metode decommissioning yang tepat menggunakan Analytic Hierarchy Process (AHP) serta analisis kualitatif resiko kecelakaan pada proses decommissioning. Hasil dari penelitian didapatkan metode decommissioning yang tepat berdasarkan 4 kriteria yaitu Environmental, Cost, Legal, dan Security adalah Complete Removal dengan kriteria Legal sebagai kritera yang paling berpengaruh dalam pemilihan metode decommissioning platform. Estimasi durasi dan biaya dari decommissioning complete removal kurang lebih selama 126 hari dengan biaya sekitar $ 16.701.505,49. Kegiatan yang paling beresiko pada saat proses decommissioning metode Complete Removal adalah tahap Platform Preparation.
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The need for very large energy causes the need for oil and gas to increase. Oil and gas content on land and shallow seas is getting depleted so that oil and gas exploration and exploitation activities are carried out in the deep sea. Offshore oil and gas platforms have a service life of 20-25 years. When the platform has reached its operational limit, it must be decommissioned. Platform decommissioning is to stop offshore building operations. There are 4 methods of decommissioning the platform, namely Complete Removal, Partial Removal, Toppling in Place, and Leave in Place. Decommissioning activities have a high risk of accidents and have an impact on the environment and human safety. Therefore, it is necessary to analyze the selection of the right decommissioning method, estimate the duration & cost of the decommissioning process as well as risk analysis on the decommissioning platform process to make an accident prevention plan. The case study of this research is the X platform belonging to PT. PHE ONWJ. The study conducted an analysis of the selection of the right decommissioning method using the Analytic Hierarchy Process (AHP) as well as a qualitative analysis of the risk of accidents in the decommissioning process. The results of the study showed that the appropriate decommissioning method based on 4 criteria, namely Environmental, Cost, Legal, and Security was Complete Removal with Legal criteria as the most influential criterion in the selection of the decommissioning platform method. The estimated duration and cost of decommissioning complete removal is approximately 126 days at a cost of approximately $16,701,505.49. The most risky activity during the decommissioning process for the Complete Removal method is the Platform Preparation.

Item Type:	Thesis (Other)
Additional Information:	RSKe 627.98 Sau p-1 2022 3100022094151
Uncontrolled Keywords:	Analytic Hierarchy Process (AHP), Decommissioning Jacket Platform, Risk Analysis
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials. T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Anis Wulandari
Date Deposited:	08 Oct 2025 10:32
Last Modified:	08 Oct 2025 10:32
URI:	http://repository.its.ac.id/id/eprint/128523

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