Technical and economic analysis use of flare gas into alternative energy as a breakthrough in achieving zero routine flaring

Abstract

Abstract. The activity of exploring natural oil and gas will produce gas flare 0.584 MMSCFD. A gas flare is the combustion of gas remaining to avoid poisonous gas like H 2 S and CO which is very dangerous for human and environmental health. The combustion can bring about environmental pollution and losses because it still contains valuable energy. It needs the policy to encourage the use of flare gas with Zero Routine Flaring and green productivity to reduce waste and pollution. The objective of the research was to determine the use of gas flare so that it will have economic value and can achieve Zero Routine Flaring. It was started by analysing based on volume or rate and composition gas flare was used to determine technical feasibility, and the estimation of the gas reserves as the determination of the economy of a gas well. The results showed that the use of flare gas as fuel for power generation feasible to be implemented technically and economically with Internal Rate of Return (IRR) 19.32% and the Payback Period (PP) 5 year. Thus, it can increase gas flare value economically and can achieve a breakthrough in Zero Routine Flaring.

Tinjauan Permintaan Gas Global dan Distribusi LPG di Indonesia: Studi Pustaka

“…Dari segi cadangan gas global, Indonesia menempati posisi 20 besar dunia, dengan total cadangan gas sekitar 2 tcm, dengan proporsi 1,4% cadangan gas dunia [29]. Namun, walaupun Indonesia memiliki cadangan gas dalam jumlah besar, dalam memenuhi besarnya konsumsi gas LPG dalam negeri, Indonesia masih melakukan impor.…”

“…Dari Tabel 2 di atas dapat dilihat bahwa pada tahun 2016, total konsumsi gas di Indonesia mencapai 6,67 juta ton metrik. Dimana 4,42 juta ton metrik (sekitar 66,3%) masih diimpor dan 2,24 juta ton metrik merupakan hasil produksi dalam negeri [29] Grafik yang menunjukkan permintaan dan perbandingan volume impor (warna merah) serta produksi migas di Indonesia (warna biru) tahun 2012 hingga 2016 dapat dilihat pada Gambar 2 di bawah ini.…”

“…Bagian hulu (upstream) merupakan fase persiapan termasuk eksplorasi, akuisisi dan perizinan atas lahan potensial [38]. Bagian midstream terdiri dari perancangan pabrik pengolahan gas yang meliputi penghapusan asam, pemulihan sulfur, fraksinasi, dan pembuangan nitrogen [29]. Sedangkan bagian downstream (hilir) rantai pasokan gas melibatkan penyimpanan, pendistribusian, serta penjualan gas [30], [31].…”