Perencanaan Inspeksi Pipeline 30 Inch Sales Gas Kilometer Point 0+00 Sampai Kilometer Point 10+905 Menggunakan Metode Risk Based Inspection Berdasarkan Api 581

Abstract

A 30-inch gas pipeline spanning 22.9 km and in operation since 2014 is a vital national
infrastructure for transporting natural gas from exploration sites to processing facilities. The metallic
material of the pipeline is prone to corrosion due to chemical reactions with gas components,
potentially leading to wall thinning and reduced structural integrity. Although designed with a
corrosion allowance, varying corrosion rates across locations require regular inspection. Given that
much of the pipeline is underground, a risk-based inspection (RBI) approach offers a more efficient
alternative without excavation. This study aims to identify pipeline segmentation, potential damage
mechanisms, Probability of Failure (Pf), Consequence of Failure (Cf), and overall risk level from KP
0+000 to KP 10+905. The results show the pipeline is divided into 43 segments, with thinning and
external damage as the main failure mechanisms. The highest PoF is found in segment 6 at 0.1396
failures/year, and the highest Cf is in segment 32 at USD 136,587 per incident. Segment 6 falls into a
medium-risk category, while all other segments are categorized as low risk. Planned inspection in 2026.