Desain Variasi Support Boatlanding Terhadap Kekuatan Jacket Ed Well Tripod Platform

Nuswantoro, Windra Bangun (2016) Desain Variasi Support Boatlanding Terhadap Kekuatan Jacket Ed Well Tripod Platform. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Naik turunya harga minyak dunia mengindikasikan tingginya persaingan minyak dunia. Pencarian sumber minyak yang awalnya banyak di darat menjadi merambat ke laut dalam. Hal ini membuat pengembangan teknologi produksi minyak dan gas lepas pantai semakin berkembang. Salah satunya adalah pembangunan anjungan lepas pantai. ED Well Tripod Platform adalah salah satu anjungan lepas pantai yang beroperasi di utara Jawa Barat. ED memiliki tiga kaki dan beroperasi sebagai well head selama beberapa tahun. Struktur ini mengalami beberapa perubahan bentuk dan pergantian bagian akibat korosi dan pengaruh lain. Salah satu bagian struktur yang diganti adalah boatlanding. Boatlanding adalah bagian dari struktur anjungan yang berfungsi sebagai tempat bersandarnya kapal, baik pengangkut akomodasi maupun pengangkut pekerja. Struktur boatlanding pada ED membutuhkan proses penggantian dikarenakan struktur tersebut sudah mengalami perubahan bentuk baik akibat korosi, maupun benturan dari kapal yang bersandar. Dalam proses penggantian tersebut diperlukan proses penghitungan yang sangat teliti agar boatlanding dapat digunakan dalam jangka waktu tertentu. Tugas Akhir ini membahas tentang analisis kekuatan struktur boatlanding dalam menerima beban, dalam hal ini adalah tubrukan kapal. Analisis ini perlu dilakukan karena untuk memperkirakan desain struktur boatlanding dapat menahan beban benturan kapal, dengan dimensi se-ekonomis mungkin. Selain itu, dalam tugas akhir ini dilakukan analisis desain struktur boatlanding dengan modifikasi pada struktur support atau penyangganya. Struktur support berupa shock cells system merupakan sistem yang mulai dipakai untuk umum. Dalam analisis ini memakai jenis shock cells TH 1630 dan TH 1636. Analisis ini dilakukan dalam dua kondisi, yaitu kondisi kecepatan kapal saat operasi maupun kondisi kapal saat kecelakaan. Kondisi kapal saat merapat pada boatlanding memiliki posisi broadside atau menyamping dengan sudut hantaman 30o, 45o, 60o, dan 90o kondisi bow/stern. =============================================================================================== Global oil price fluctuation indicates a highly competitive global oil price. Oil reserve exploration that is initially available onshore has expanded into deep-sea sector. This occurrence generates positive development in both oil production and offshore gas technology. ED Well Tripod Platform is one among offshore platforms that has been operating in North Jawa Barat. ED has three legs that are utilised as well head over several years. This structure has been enduring some dimensional changes and parts replacement due to corrosion and other effects. One of which structures replaced is boatlanding. Boatlanding is a part of platform structure, which is functioned as to harbouring ships of either accommodation transport or worker transport. Boatlanding structure on ED demands replacement process because of dimensional changes appeared on the structure as an effect of corrosion or being collided by harbouring ships. The replacement process requires meticulous calculation process, thus enabling boatlanding to be operated throughout certain period of time. This Final Project encompassed an analysis of boatlanding structure strength upon receiving load; in this matter to be concerned was ship collision. The analysis was indispensable as to determining boatlanding structure design during collision, with regard to obtaining economic dimension as well. Moreover, the Final Project had conducted an analysis of boatlanding structure design with modification on supporting structure. The supporting structure was shock cells system, which has been commercially applied. This analysis had carried out shock cells type of TH 1630 and TH 1636. The analysis was observed upon two scenarios: ship during operation speed and ship during accident. Ship condition while it was harbouring on boatlanding had encountered broadside position or deviated with collision angle at 30o, 45o, 60o and 90o upon bow/stern condition.

Item Type: Thesis (Undergraduate)
Additional Information: RSKe 627.98 Nus d
Uncontrolled Keywords: ED Well Tripod Platform, Support Boatlanding, Shock Cells, TH 1630, TH 1636, Utara Jawa Barat.
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
Divisions: Faculty of Marine Technology > Ocean Engineering > (S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 08 Sep 2017 02:50
Last Modified: 27 Dec 2018 03:24
URI: http://repository.its.ac.id/id/eprint/48812

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