Analisis Risiko Unit Separator Menggunakan Metode Semi Kuantitatif Risk Based Inspection API 581

Agussalim, Rahmat (2026) Analisis Risiko Unit Separator Menggunakan Metode Semi Kuantitatif Risk Based Inspection API 581. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proses produksi minyak dan gas melibatkan berbagai peralatan bertekanan yang beroperasi pada kondisi ekstrem. Salah satu peralatan penting dalam proses pemisahan fluida produksi adalah separator yang berfungsi memisahkan fasa gas, minyak, dan air berdasarkan perbedaan massa jenis. Kegagalan pada unit separator dapat menyebabkan gangguan operasi, penurunan efisiensi produksi, serta potensi bahaya terhadap keselamatan dan lingkungan. Untuk mengendalikan risiko tersebut, diperlukan metode perencanaan inspeksi yang efektif dan terukur. Penelitian ini menganalisis tingkat risiko pada separator PV-9700 menggunakan metode Risk-Based Inspection (RBI) semi-kuantitatif berdasarkan standar API 581 serta merancang program inspeksi yang sesuai. Mekanisme kerusakan yang diidentifikasi pada peralatan ini adalah thinning dan external corrosion. Analisis risiko dilakukan melalui dua parameter utama, yaitu Probability of Failure (POF) dan Consequence of Failure (COF). Hasil perhitungan menunjukkan bahwa nilai POF separator PV-9700 sebesar 0,00000306 yang termasuk dalam kategori 1 (Low). Nilai COF berdasarkan konsekuensi area sebesar 2,013 m² dan konsekuensi finansial sebesar USD 2.258.941,8 termasuk dalam kategori 4 (Medium). Berdasarkan pemetaan pada matriks risiko API 581, separator PV-9700 berada pada tingkat risiko menengah (medium). Berdasarkan hasil analisis tersebut, program inspeksi untuk mekanisme kerusakan thinning dan external corrosion direkomendasikan dilaksanakan pada 1 Januari 2029. Metode inspeksi yang dapat digunakan meliputi visual testing, ultrasonic testing, dan radiographic testing. Perencanaan inspeksi ini diharapkan dapat membantu perusahaan dalam menerapkan strategi inspeksi yang efisien, memperpanjang umur peralatan, serta meminimalkan potensi risiko kegagalan di masa mendatang.
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The oil and gas production process involves various pressurized equipment operating under extreme conditions. One of the key units in the production fluid separation process is the separator, which functions to separate gas, oil, and water phases based on differences in density. Failure of a separator unit can lead to operational disruptions, reduced production efficiency, and potential safety and environmental hazards. To manage these risks, an effective and measurable inspection planning method is required. This study analyzes the risk level of the PV-9700 separator using the semi-quantitative Risk-Based Inspection (RBI) method based on the API 581 standard and develops an appropriate inspection program. The damage mechanisms identified in this equipment are thinning and external corrosion. Risk analysis was conducted using two main parameters: Probability of Failure (POF) and Consequence of Failure (COF). The results indicate that the POF value of the PV-9700 separator is 0.00000306, which falls into Category 1 (Low). The COF value, based on a consequence area of 2.013 m² and a financial consequence of USD 2,258,941.8, is classified as Category 4 (Medium). According to the API 581 risk matrix, the PV-9700 separator is categorized as having a medium risk level. Based on the analysis results, the inspection program for the thinning and external corrosion mechanisms is recommended to be conducted on January 1, 2029. The inspection methods that may be applied include visual testing, ultrasonic testing, and radiographic testing. This inspection plan is expected to assist the company in implementing an efficient inspection strategy, extending the service life of the equipment, and minimizing potential failure risks in the future.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Consequence of Failure, Probability of Failure, Risk Based Inspection, Separator
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA169.5 Failure analysis
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Rahmat Agussalim
Date Deposited:	25 Jun 2026 06:58
Last Modified:	25 Jun 2026 06:58
URI:	http://repository.its.ac.id/id/eprint/134070

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