Ramadhan, Nabilah Aulia Wahyu (2026) Analisis Risiko Menggunakan Metode Hazard and Operability Study (HAZOP) sebagai Dasar Implementasi Fire and Gas System (FGS) pada Proses Inlet Separator di Fasilitas Produksi Hulu Migas di Jawa Timur. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Industri minyak dan gas memiliki tingkat risiko tinggi akibat penggunaan fluida bertekanan, hidrokarbon mudah terbakar, serta potensi paparan hidrogen sulfida (H₂S). Penelitian ini bertujuan menganalisis risiko proses sebagai dasar implementasi Fire and Gas System (FGS), mengevaluasi kinerja FGS melalui Probability of Failure on Demand average (PFDavg) dan Safety Integrity Level (SIL), serta menilai efektivitas implementasinya dalam mendukung risk reduction. Analisis dilakukan menggunakan Hazard and Operability Study (HAZOP) pada tiga node proses, dilanjutkan dengan Layer of Protection Analysis (LOPA), identifikasi Safety Instrumented Function (SIF), perhitungan PFDavg, serta function test. Hasil HAZOP menghasilkan 44 skenario, terdiri atas 23 skenario pada Inlet Separator, 14 pada Condensate/Water Separator, dan 7 pada Inlet KO Drum. Pada kategori Safety, 21 skenario (47,73%) berada pada kategori High dan 5 skenario (11,36%) pada Moderate to High. Delapan skenario dianalisis menggunakan LOPA dan menunjukkan kebutuhan additional risk reduction dengan required RRF sebesar 133,33–10.000. Evaluasi terhadap delapan SIF menghasilkan PFDavg sebesar 9,866 × 10⁻⁴–5,553 × 10⁻³, dengan enam SIF memenuhi SIL 2 dan dua SIF memenuhi SIL 3. Sebanyak 95 bump test menghasilkan initial pass rate 96,84%, sedangkan cause and effect test menghasilkan 16 dari 16 pengujian pass. Running test terhadap 19 detector selama 144 jam atau 2.736 detector-hour tidak menunjukkan gangguan sistem. Hasil penelitian menunjukkan bahwa FGS mampu mendukung risk reduction sebagai lapisan proteksi tambahan. Penelitian ini mendukung SDG 9 (Industry, Innovation and Infrastructure) melalui penerapan sistem proteksi berbasis instrumentasi dan SDG 8 (Decent Work and Economic Growth) melalui peningkatan keselamatan kerja pada fasilitas produksi migas.
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The oil and gas industry involves high operational risks due to pressurized fluids, flammable hydrocarbons, and potential hydrogen sulfide (H₂S) exposure. This study aims to analyze process risks as the basis for Fire and Gas System (FGS) implementation, evaluate FGS performance using the average Probability of Failure on Demand (PFDavg) and Safety Integrity Level (SIL), and assess its effectiveness in supporting risk reduction. The analysis was conducted using a Hazard and Operability Study (HAZOP) on three process nodes, followed by Layer of Protection Analysis (LOPA), Safety Instrumented Function (SIF) identification, PFDavg calculation, and function testing. The HAZOP identified 44 scenarios, comprising 23 scenarios in the Inlet Separator, 14 in the Condensate/Water Separator, and 7 in the Inlet KO Drum. In the Safety category, 21 scenarios (47.73%) were classified as High and 5 scenarios (11.36%) as Moderate to High. Eight scenarios were further evaluated using LOPA, indicating additional risk reduction requirements with required RRF values ranging from 133.33 to 10,000. Evaluation of eight SIFs produced PFDavg values of 9.866 × 10⁻⁴–5.553 × 10⁻³, with six SIFs achieving SIL 2 and two SIFs achieving SIL 3. A total of 95 bump tests resulted in an initial pass rate of 96.84%, while the cause and effect test achieved 16 passes out of 16 tests. A 144-hour running test involving 19 detectors, equivalent to 2,736 detector-hours, showed no system disturbances. These results indicate that the FGS supports risk reduction as an additional protection layer. This study contributes to SDG 9 (Industry, Innovation and Infrastructure) through the implementation of instrumented protection systems and SDG 8 (Decent Work and Economic Growth) through improved occupational safety in oil and gas production facilities.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Fire and Gas System (FGS), Hazard and Operability Study (HAZOP), LOPA, Safety Integrity Level (SIL), Sustainable Development Goals (SDGs) |
| Subjects: | T Technology > T Technology (General) > T174.5 Technology--Risk assessment. T Technology > T Technology (General) > T55 Industrial Safety |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Nabilah Aulia Wahyu Ramadhan |
| Date Deposited: | 03 Aug 2026 04:02 |
| Last Modified: | 03 Aug 2026 04:02 |
| URI: | http://repository.its.ac.id/id/eprint/140671 |
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