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  • Users: elaineabc
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  1. elaineabc

    Internal Coating of Pipe for Non-Piggable Pipe

    We are in the Natural Gas business. You are right about lateral lines, there is so much H2S in the system that ate the pipe alive. I am performing this research with the objective to prevent our pipe from R-Strength deficiencies. 1. To inject corrosion inhibitors. 2. Find small piggable...
  2. elaineabc

    Internal Coating of Pipe for Non-Piggable Pipe

    Dear everyone, I have issues with a few of our pipelines which are non-piggable and are under active corrosion. I wonder if you know any company or technique could assist to remediate the corrosion for internal pipe corrosion? Thanks in advance for your assistance.
  3. elaineabc

    Control Valve Fail Open convert to Fail Close

    Thanks for a very comprehensive reply. I would like to further explore an opportunity to learn from you. Let's said MAOP of the system is 720 psi, what pressure setting do we need to set? I set it at 1000 psi. Now, if the coming pressure is more than 1000 psi, it will require to FAIL CLOSE...
  4. elaineabc

    Control Valve Fail Open convert to Fail Close

    I have an old control valve Fisher with 4160 Controller and 657 Actuator Fail Open type. I would like to install this Control Valve to a similar application required Fail Close type. My supervisor indicated to Fail Close would require Actuator 667 Model to be able to switch the valve to Fail...
  5. elaineabc

    Require Bracing for Actuator Valve 6500lbs Vertical?

    The actuator was installed yesterday. The valve is located at the bottom of the actuator (14'). Part of the valve is underground. Big Inch: You are absolutely right, "You can place a 20" with actuator above ground, if the structure is adequate. The actuator cylinder load should not be...
  6. elaineabc

    Require Bracing for Actuator Valve 6500lbs Vertical?

    Dear friends, I have a 20" Actuator Valve with 6500 lbs weight and 14 feet above ground, vertical setting. The valve will thrust 156,000 lbs force (80 Tons) with double acting cylinder with 1 hydraulic cylinder sits on top. The vendor told us we do not require to use external anchor or bracing...
  7. elaineabc

    Internal Coating of Pipe - Anyone knows who could do it?

    Hello everyone, Could you assist me with a firm (contractors) who could perform internal coating of our pipeline. I recently experience severe problems with our internal corrosion on non piggable lines with low flow. Does anyone have any governing agencies like DOT 192 (Gas) or Engineering...
  8. elaineabc

    Difference between Lowering and Boring Pipe Segment

    I am still confused between terminology when contractors are referring to lower, bore, directional drill of a pipe segment. I hope I could be lucky enough to have someone explain to me in details. Thank you very much.
  9. elaineabc

    Available Piping and E&I Design School?

    I am trying to obtain a good training class for piping design. Obviously sounds like noone comes up yet with a great class. I think it's great opportunity to take avantage of the oil & gas market. If anyone else could point me in the direction, I would deeply appreciate your guidance.
  10. elaineabc

    Available Piping and E&I Design School?

    Your replies are very kind. I still don't have the solution. If you tell me to read a book then I am out of luck because I do not have enough experience. What I need is detail oriented training. For example, instructor will teach about pipe materials, pipe components, set up bill of material...
  11. elaineabc

    Available Piping and E&I Design School?

    Hi everyone, I have been working about 6 months in piping design system, however due to insufficient piping background, I have difficulties drafting and understanding piping design concept such as isometric drawings, bill of material, and piping specifications. I like to learn the refinery...
  12. elaineabc

    Challenge calculation

    Can you tell me hours required to drop the following pipeline from high pressure to low pressure? 8.5 miles of isolated 12” pipeline @ approx. 595 psig to equalize @ 40 psig thru a 1.5 sq. inch open valve. Please explain to me if you have sometime how to come up with a solution to this...

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