FIRDAUS, KEVIN GALIH (2025) ANALISIS LAJU KOROSI PADA PIPA FOAM CHAMBER TANGKI CRUDE OIL DI PERUSAHAAN OIL AND GAS. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Corrosion in industrial equipment presents a significant challenge in the oil and gas sector, particularly on fire protection components such as foam chambers installed on crude oil storage tanks. , an oil and gas processing company based in Indonesia, places operational safety as a top priority, company oil and gas ncluding the implementation of fire protection systems that comply with industry standards. However, exposure to corrosive environments makes foam chambers highly vulnerable to material degradation. This study aims to analyze the corrosion rate on foam chamber pipes using ultrasonic thickness gauge measurements conducted directly in the field. The data obtained are used to calculate the corrosion rate and estimate the component’s service life. The specimen analyzed is a 4-inch diameter foam chamber pipe with an initial thickness of 8 mm, made from carbon steel seamless pipe material. Thickness measurements were carried out at four different points using an ultrasonic thickness gauge, with two readings taken at each point to improve accuracy. The test results showed a maximum corrosion rate of 0.19 mm/year and an average rate of 0.17 mm/year. Based on the calculated average remaining thickness of 5.67 mm and the minimum remaining thickness allowance of 3 mm according to ASME B31.4 standards, the projected service life of the foam chamber pipe is estimated to be 29 years. Keywords: corrosion, foam chamber, crude oil tank, corrosion rate, service life Korosi pada peralatan industri merupakan tantangan besar di sektor minyak dan gas khususnya pada komponen proteksi kebakaran seperti foam chamber yang terpasang pada tangki penyimpanan crude oil. Perusahaan Oil and Gas sebagai perusahaan pengolahan minyak dan gas di Indonesia menjadikan keselamatan operasional sebagai prioritas utama, termasuk melalui sistem proteksi kebakaran yang sesuai standar industri. Namun, paparan lingkungan korosif menyebabkan foam chamber sangat rentan mengalami degradasi material. Penelitian ini bertujuan untuk menganalisis laju korosi pada pipa foam chamber menggunakan metode pengukuran ketebalan pipa dengan alat ultrasonic thickness gauge secara langsung di lapangan. Data yang diperoleh akan digunakan untuk menghitung laju korosi dan estimasi umur pakai komponen. spesimen yang dianalisis berupa pipa foam chamber berdiameter 4 inch dengan ketebalan awal 8 mm, menggunakan material baja karbon tipe seamless pipe. Pengukuran ketebalan pipa dilakukan pada empat titik berbeda menggunakan alat ultrasonic thickness gauge dengan masing-masing titik dilakukan dua kali pengambilan data untuk meningkatkan akurasi. Hasil pengujian ketebalan menunjukkan laju korosi tertinggi mendapatkan nilai 0,19
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