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  1. Iskandarzade

    Cathodic protection of sets of pipelines

    Thanks Brimmer for your reply. Pipelines are lied in area of about 40 Km^2. Their length are vary from 3Km to 40Km. Currently, we have cathodically protected most of them,one by one. I mean, cathodic protection of each pipeline has been designed separately. But, according to the designer...
  2. Iskandarzade

    Cathodic protection of sets of pipelines

    Hi all, We have problem in managing cathodic protection of our oil and gas pipeline system. As we have dozens of pipelines in a large area with diameters mostly in the range of 4-inch to 8-inch. Some of them have been burried just several meters farther; some of them crossing each other; some...
  3. Iskandarzade

    Pipe, API 5L X42 or X65 which one is better for H2S containing Service

    Hi All, We want planning for our client's sour service natural gas pipeline system. You know API 5L X42-X65 all satisfy the requirements of the NACE MR0175. But, I wonder if you can introduce me an any recommendation/document which compares X42 vs. X65. I want to know which one is much better...
  4. Iskandarzade

    what is the reason for Large element deformation?

    Hi Corus, Thank you for your information. Do you have any idea about how can I eliminate this unexpected large deformations at some elements?
  5. Iskandarzade

    what is the reason for Large element deformation?

    Hi my Friends, I am doing abaqus run for a copper specimen under hydrostatic pressure. The magnetude of pressure is in order of several Giga Pascals. In my material definition, I have defined stress-strain flow up to strain of 0.4. But as you can see in attached photo, some elements show very...

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