Design Of A 1600 Bbl Crude Oil Storage Tank In The Sp-Iv Rantau Field Area And Strength Analysis Usin

Abstract

Rantau Field is one of the oil and gas fields operated by PT Pertamina EP, consisting of
several active structures. Based on inspection results, Tank T-407 was declared unfit for operation due
to peeling paint and perforations in the wall plates. Therefore, a new storage tank with a capacity of
1,600 BBLS is planned for construction at SP-IV Rantau Field using carbon steel ASTM A283 Grade
C. The design follows API Standard 650, 13th, March 2020, applying the one-foot method. From
calculations, the minimum shell plate thickness for courses 1 to 5 is use 6 mm because since all values
are less than 6 mm, a thickness of 6 mm is adopted according to API 650 requirements, which specify
a minimum of 6 mm for tank diameters between 6 m and 36 m. The bottom plates are designed with a
thickness of 9 mm, and the roof plates 8 mm. Stability analysis shows the tank is stable without
anchorage. A 3D model and finite element analysis produced an equivalent stress of 26.773 MPa and
deformation of 0.9412 mm. Both are within allowable limits for ASTM A283 Grade C. The estimated
construction cost of the 1,600 BBLS tank is IDR 3,177,048,387.00