Analisis On Bottom Stability Gas Pipeline : Studi Kasus Pada Laut Dalam Di 1o 15’ S 117o 39’ E Selat Makassar

Hamzah, Kevin Mirekel (2018) Analisis On Bottom Stability Gas Pipeline : Studi Kasus Pada Laut Dalam Di 1o 15’ S 117o 39’ E Selat Makassar. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Produk dari minyak dan gas masih merupakan salah satu ketergantungan manusia di era ini, sehingga usaha eksplorasi dan eksploitasi minyak dan gas sangat intensif termasuk di perairan dangkal hingga laut dalam. Untuk menyalurkannya, dibutuhkan alat transportasi salah satunya adalah pipeline. Jaringan pipeline harus didesain kuat dan stabil, jika pipeline mengalami kegagalan akan menimbulkan kerugian ekonomi dan lingkungan yang sangat besar. Oleh karena itu diperlukan beberapa analisis utama, salah satunya adalah analisis On-Bottom Stability. Analisis On-Bottom Stability bertujuan untuk menentukan berat minimum pipa agar dapat stabil di dasar laut. Saat ini, terdapat sebuah perusahaan yang sedang memiliki proyek yang berada di daerah Selat Makassar. Pipeline akan diletakkan pada kedalaman 100 m sampai 1426 m di bawah permukaan laut. Adapun tujuan dari tugas akhir ini adalah melakukan analisis On-Bottom Stability untuk pipeline dari proyek tersebut untuk menghindari terjadinya kegagalan yang dapat menyebabkan kerugian bagi perusahaan. Metode yang penulis lakukan yaitu melakukan studi literatur dan tinjauan pustaka, pengumpulan data, perhitungan berat, perhitungan beban lingkungan menggunakan Spektrum JONSWAP, perhitungan On-Bottom Stability menggunakan DNVGL RP F109, perhitungan gaya dan safety factor, dan yang terakhir adalah menganalisa hasil dan penarikan kesimpulan. Dari hasil analisis, pada saat kondisi kosong maupun kondisi operasional, di kedalaman 100 m maupun 1426 m, pipeline tersebut stabil secara vertikal maupun lateral. ========================================================= The products that are produced out of oil and gas are still one of the human's main dependence in this era. That results to the intensive business of oil and gas exploration and exploitation, including in shallow waters to the deep sea. To distribute it, one of the means of transportation used is by distributing it thorugh a pipeline. The pipeline network must be designed to be strong and stable. If the pipeline fails, enormous economic and environmental losses could be the consequences. Therefore, some major analysis is needed and one of them is the On-Bottom Stability analysis. On-Bottom Stability Analysis aims to determine the minimum weight of the pipe to be stable on the seabed. Currently, there is a company working on a project located in the Makassar Strait area. The pipeline will be placed at a depth of 100 m to 1426 m below sea level. The purpose of this final project is to analyze the On-Bottom Stability for the pipeline of the project to avoid the occurrence of failure that can cause losses for the company. The writer's method is by literature study and literature review, data collection, weight calculation, environmental load calculation using JONSWAP spectrum, On-Bottom Stability calculation using DNVGL RP F109, force calculation and safety factor, analyzing the result and drawing conclusion. Based on the analysis, when the pipeline is empty or in the operational condition, at 100 m or 1426 m depth, the pipeline is stable vertically and laterally.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: on-bottom stability, pipeline, selat makassar, concrete coating, spektrum JONSWAP, DNVGL RP F109, laut dalam
Subjects: L Education > LB Theory and practice of education
Q Science
T Technology > TC Hydraulic engineering. Ocean engineering > TC1665 Offshore structures--Materials.
T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
T Technology > TC Hydraulic engineering. Ocean engineering > TC424 Water levels
Divisions: Faculty of Marine Technology > Ocean Engineering > (S1) Undergraduate Theses
Depositing User: Kevin Mirekel Hamzah
Date Deposited: 04 Jan 2019 03:17
Last Modified: 04 Jan 2019 03:17
URI: http://repository.its.ac.id/id/eprint/53551

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