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Abstrak :
ABSTRAK
Tesis ini bertujuan untuk menentukan dimensi Shell and Tube Vaporizer (STV) pada pengembangan fasilitas regasifikasi berkapasitas 500 MMSCFD (~ 3.593 MWe) yang akan dipasang di ex-pengolahan LNG dengan keterbatasan lahan (30 x 30 m2). Diperoleh lima kelompok STV dengan media pemanas propana dan air laut dan dimensi terbesar STV adalah 7,32 m (panjang) dan 1,45 m (diameter). Parameter NPV, IRR, dan PBP atraktif untuk biaya regasifikasi 2-3 USD/MMBTU, cukup optimum saat biaya regasifikasi sebesar 2.75 USD/MMBTU, dengan NPV USD 38 M, IRR 23,9% dan PBP 4,59 tahun. Berdasarkan analisis sensitivitas, biaya investasi lebih sensitif terhadap parameter keekonomian dibandingkan harga sewa.

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ABSTRACT
The objective of this thesis is to determine dimension of Shell and Tube Vaporizer (STV) at regasification facility development with capacity of 500 MMSCFD (~ 3.593 MWe) which will be installed at a location of ex-facilities of LNG production that has area limitation (30 x 30 m2). There are five STV groups with heating media of propane and sea water and the largest dimension is 7,32 m (length) and 1,45 m (diameter). Parameters NPV, IRR, and PBP are attractive for regasification cost of 2-3 USD/MMBTU, optimum enoughwhen the regasification cost is 2.75 USD/MMBTU, result in NPV of USD 38 M, IRR of 23,9%, and PBP of 4,59 years. Based on sensitivity analysis, investation cost is more sensitive to the economic parameter compare with the rent cost

Abstrak :
[ABSTRAK
Tesis ini membahas bagaimana memanfaatkan gas suar bakar yang ada di Platform X untuk dapat menjadi suatu yang bernilai ekonomis. Gas suar bakar yang ada di Platform X selama ini hanya dibakar. Penelitian ini dimulai dengan menganalisa komposisi gas suar bakar yang ada di Platform X agar dapat ditentukan proses seperti apa yang tepat untuk mengolah gas suar bakar menjadi gas jual. Dari segi analisis teknis, proses Kompresi Gas merupakan pilihan tepat untuk mengolah gas suar bakar menjadi gas jual. Dilihat dari analisa komposisi gas suar bakar yang rendah gas asam membuatnya tidak perlu pengolahan lanjutan. Gas suar bakar dapat dikompresikan untuk dialirkan ke aliran gas yang masuk ke fasilitas gas eksport untuk diproses agar sesuai dengan spesifikasi gas eksport. Fasilitas gas eksport di Platform X didesain untuk menampung gas 175 MMSCFD dimana produksi saat ini sebesar 125 MMSCFD sehingga masih mampu menampung masukan gas. Dari hasil analisa ekonomi investasi ini dinilai layak dilakukan, dengan nilai WACC 23,89% dan IRR 28,88%.

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ABSTRACT
The focus of this study is how to utilize Flare Gas in Platform X into valuable products. At all this time, the Flare Gas in Platform X is just burn in to flaring tip. This study is starting with analyze the gas composition in Platform X so it can specified what the right method to utilize the Flare Gas in Platform X into sales gas. From technical analysis, the Gas Compression is a perfect method to treatment Flare gas into sales gas. From the composition of gas analysis this gas has lower sour gas contents makes it unnecessary further treatment. Flare gas can be compressed to flow into the gas stream entering the facility to export gas to be processed in order to conform to the specifications of the gas export. Platform X Gas export facilities designed to handle 175 MMSCFD of gas so it still able to handle input gas. From the results of the economic analysis of investments is considered feasible, the WACC value of 23.89% and 28.88% IRR.;The focus of this study is how to utilize Flare Gas in Platform X into valuable products. At all this time, the Flare Gas in Platform X is just burn in to flaring tip. This study is starting with analyze the gas composition in Platform X so it can specified what the right method to utilize the Flare Gas in Platform X into sales gas. From technical analysis, the Gas Compression is a perfect method to treatment Flare gas into sales gas. From the composition of gas analysis this gas has lower sour gas contents makes it unnecessary further treatment. Flare gas can be compressed to flow into the gas stream entering the facility to export gas to be processed in order to conform to the specifications of the gas export. Platform X Gas export facilities designed to handle 175 MMSCFD of gas so it still able to handle input gas. From the results of the economic analysis of investments is considered feasible, the WACC value of 23.89% and 28.88% IRR.;The focus of this study is how to utilize Flare Gas in Platform X into valuable products. At all this time, the Flare Gas in Platform X is just burn in to flaring tip. This study is starting with analyze the gas composition in Platform X so it can specified what the right method to utilize the Flare Gas in Platform X into sales gas. From technical analysis, the Gas Compression is a perfect method to treatment Flare gas into sales gas. From the composition of gas analysis this gas has lower sour gas contents makes it unnecessary further treatment. Flare gas can be compressed to flow into the gas stream entering the facility to export gas to be processed in order to conform to the specifications of the gas export. Platform X Gas export facilities designed to handle 175 MMSCFD of gas so it still able to handle input gas. From the results of the economic analysis of investments is considered feasible, the WACC value of 23.89% and 28.88% IRR.;The focus of this study is how to utilize Flare Gas in Platform X into valuable products. At all this time, the Flare Gas in Platform X is just burn in to flaring tip. This study is starting with analyze the gas composition in Platform X so it can specified what the right method to utilize the Flare Gas in Platform X into sales gas. From technical analysis, the Gas Compression is a perfect method to treatment Flare gas into sales gas. From the composition of gas analysis this gas has lower sour gas contents makes it unnecessary further treatment. Flare gas can be compressed to flow into the gas stream entering the facility to export gas to be processed in order to conform to the specifications of the gas export. Platform X Gas export facilities designed to handle 175 MMSCFD of gas so it still able to handle input gas. From the results of the economic analysis of investments is considered feasible, the WACC value of 23.89% and 28.88% IRR., The focus of this study is how to utilize Flare Gas in Platform X into valuable products. At all this time, the Flare Gas in Platform X is just burn in to flaring tip. This study is starting with analyze the gas composition in Platform X so it can specified what the right method to utilize the Flare Gas in Platform X into sales gas. From technical analysis, the Gas Compression is a perfect method to treatment Flare gas into sales gas. From the composition of gas analysis this gas has lower sour gas contents makes it unnecessary further treatment. Flare gas can be compressed to flow into the gas stream entering the facility to export gas to be processed in order to conform to the specifications of the gas export. Platform X Gas export facilities designed to handle 175 MMSCFD of gas so it still able to handle input gas. From the results of the economic analysis of investments is considered feasible, the WACC value of 23.89% and 28.88% IRR.]

Abstrak :
Gas merupakan energi transisi yang mampu menekan emisi karbon sehingga dapat menyebabkan perubahan iklim. Pengembangan lapangan gas merupakan implementasi transisi energi sebelum menuju energi baru terbarukan (EBT). Lapangan Natuna D Alpha dengan kandungan CO₂ sebesar 71% dan CH₄ 28%. Sehubungan hal tersebut perlu dilakukan studi untuk membuat gas bumi terproduksi sesuai dengan spesifikasi gas jual. Studi pengembangan lapangan gas ini meninjau dari aspek teknis dan aspek keekonomian yang disebut dengan metode Tekno-Eknomi. Aspek teknis melakukan simulasi teknik membran dengan material polimer tipe Polysulfone dengan rumus matematis kedalam Python dan hasil dari Python dimasukkan kedalam unisim. Teknologi membran untuk memisahkan CO₂ dari gas bumi. Selanjutnya melakukan injeksi CO₂ kembali kebawah permukaan bumi sebagai penerapan carbon capture storage & utilization dengan ruang lingkup menghitung kapasitas penyimpanan CO₂ sequestration dan enhanced gas recovery Sedangkan, pada aspek keekonomian sebagai penentuan  kelayakan proyek dengan menggunakan skema production sharing contract cost recovery yakni Pemerintah dan Kontraktor. Hasilnya mampu memurnikan CH₄ hingga 95,02% dengan kandungan CO₂ sebesar 4,89% dengan nilai investasi sebesar 5.451.869 MUSD. Aspek keekonomian Pengembangan lapangan gas Natuna D Alpha dapat lanjut ketahap eksekusi dengan net present value sebesar 2.595.638 MUSD, kemudian  internal rate of return sebesar 13,84%, dan payback periode pada tahun ke 7,05.

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The gas is an energy transition that can reduce carbon emissions cause its climate change. Implementation of energy transition by plan of gas field development (POFD). The Natuna D Alpha Field with 71% of CO₂ content and 28% of CH₄ content. It is necessary to study upgrading natural gas specification in accordance with the sales gas specifications. Natuna D Alpha development study using Techno-Economics method. For technical aspect, we design polymer membrane technology with Polysulfone  into Python then input to unisim.  Membrane technology is to separate CO₂ from natural gas. Furthermore, CO₂ captured will re inject to subsurface as the implementation of carbon capture storage & utilization  through estimating CO₂ storage capacity for sequestration and enhanced gas recovery . Meanwhile, the economic aspect is to determine project feasibility using a production sharing contract cost recovery scheme, whose are the Government and the Contractor. The result is 95,02% of CH₄ content with 4,89% of CO₂ content. It needs investment cost of 5.451.869 MUSD. Based on the economic aspect Natuna D Alpha gas field development can proceed to the execution stage that determined net present value (NPV) of USD 24,960 million then IRR is about 13,84%, Payback Period (PBP) in 7,05 year.