Rosari, Maria Putri (2016) Analisis Interaksi Hidrodinamis Struktur FPSO Berlambung Silinder Sevan Stabilized Platform Dengan Shuttle Tanker. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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Abstract
Sevan Stabilized Platform (SSP) merupakan inovasi baru dalam dunia eksplorasi
dan eksploitasi minyak dan gas lepas pantai. Struktur tersebut diklaim mampu
menyediakan luasan geladak dan kapasitas muat beban yang lebih besar sekaligus
menelan biaya pengadaan yang lebih murah dibandingkan dengan konsep struktur
sejenis yang sudah terbilang konvensional seperti Semisubmersible, TLP, dan
SPAR. Analisis yang dilakukan pada penelitian ini mencakup analisis respon
gerak SSP S400 dan Shuttle Tanker 35,000, analisis tension sistem tambat SSP
dan Shuttle Tanker, dan nilai operabilitas SSP. Analisis operabilitas diasumsikan
hanya dipengaruhi oleh kondisi lingkungan (beban angin, beban arus, dan beban
gelombang) tanpa mempertimbangkan aspek lain seperti penjadwalan, aspek
mechanical, dan lain-lain. Penelitian ini menyajikan luaran berupa karakteristik
respon gerak dan tension sistem tambat dalam bentuk time domain dari hasil
pemodelan numerik. Berdasarkan hasil analisis, dinyatakan bahwa nilai respon
gerak terbesar pada operasi stand alone terjadi pada kondisi SSP 75% muatan
dengan rentang nilai tension 2,000 kN sampai 7,000 kN. Nilai respon gerak
terbesar SSP dengan Shuttle Tanker pada operasi side by side offloading dengan
jarak 3.3 m terjadi akibat arah pembebanan gelombang sisi. Berdasarkan korelasi
antara kriteria operabilitas side by side offloading dengan data lingkunga,
didapatkan bahwa operabilitas sistem yang didapat dalam pengoperasiannya di
perairan Blok Masela adalah sebesar 88.55%. Operasi side by side offloading
hanya dapat dilakukan pada tinggi gelombang signifikan 2.0 m. Nilai operabilitas
SSP dan Shuttle Tanker dapat terjadi lebih besar apabila jarak side by side
offloading antara keduanya ditambahkan.
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Sevan Stabilized Platform (SSP) is a new type of mono-hull concept to be
function as an oil production. SSP offer greater deck area and load capacitiy
along with storage and low motion characteristics for lower cost, compared to
other concepts, such as the Semisubmersibles, TLPs, and SPARs. This research
has been carried out by analyzing responses of both SSP S400 and the
accompanying 35,000 DWT Shuttle Tanker, tension characteristic of their
mooring system, and its operability. The operability of SSP is only analyzed based
on environmental condition (wind load, current load, and wave load) and not
related to other aspects, such as scheduling, mechanical aspects, etc. Numerical
model with time domain simulation is used to perform the analysis on the mooring
system and vessel motion due to environmental effects. Based on the analysis, the
greater motion of stand alone operation happens when SSP is in 75% load
condition with the value range of tension 2,000 to 7,000 kN. Greater interaction
between SSP and Shuttle Tanker at a side by side distance 3.3 m occurss at beam
sea direction of wave heading. Based on the correlation between operability
criteria for the side by side offloading operation and environtmenal data, it can be
concluded that operability of the system may achieve up to 88.55%. Maximum
sea condition for safe side by side offloading operation would be about 2.0 m
significant wave height. The operation may be conducted at higher wave heights if
the side by side distance is made larger
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 627.98 Ros a |
| Uncontrolled Keywords: | Sevan Stabilized Platform, side by side offloading, respon gerak, tension, operabilitas |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 24 Feb 2020 07:30 |
| Last Modified: | 24 Feb 2020 07:30 |
| URI: | http://repository.its.ac.id/id/eprint/75142 |
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