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  1. Mechanigenic

    Refurbishment of a Burnt Oil Storage Tank

    Thank you LittleInch for your answer. There is a section in API 579 (Fitness for service) where it describes how to check if the deformations on the shell are within acceptable range or now, however, it requires too much data and also involves very complex formulas that I don!t even dare to...
  2. Mechanigenic

    Refurbishment of a Burnt Oil Storage Tank

    Hello Everyone, I have a serious problem at hand. In the oıl fıeld I am workıng ın there ıs an ongoıng project whıch ıncludes refurbıshment or repaır of a burnt oıl storage tank. The tank is a 40.000 BBL capasity tank with a diameter of 85 ft and a height of 40 ft. Design code is API 620. The...
  3. Mechanigenic

    Waviness and Flatness in Shell

    No, measuring the diameter will give you the roundness, not plumbness. To measure plumbness you need a plumb line, basicly a rope with a weight attached at he end of it from the roof to the ground level You will use this as a vertical reference. Next, you need to measure horizontal distance from...
  4. Mechanigenic

    Cone roof / storage tank

    I suggest omit the design and material part in your offer . Just give them your rates for manpower and equipment. Otherwise it looks like you will be chewing more than you can swallow. Even if you try BP would recognise your lack of experience at the bidding stage anyway.
  5. Mechanigenic

    Pipe installation man hours issues.

    You mention that it is Schedule 40 so if I am not mistaken you refer to wrong column on the chart. It should be 0.34 x 3.28 = 1.1152. It is still higher than the contractor, though.

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