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  1. Davros2013

    fluid velocities inside pipe before erosion occurs?

    thanks all for your help, much appreciated
  2. Davros2013

    fluid velocities inside pipe before erosion occurs?

    Hi folks, If I were to have a 2-7/8" carbon steel pipe with a 2.441" ID (cross sectional area of 1.812"), what is the maximum velocity I could have flowing through it? As it stands, if I flow 7000 bpd through this pipe, the velocity would be 13.99 ft/sec. Any help would be appreciated. Thanks
  3. Davros2013

    15% HCL Acid on NACE 4140 & 17/4 SS

    not sure on inhibitors as we have been given little information about what they are doing apart from injecting 15% HCL for an hour. Questions like these are all good information so thanks. Dave
  4. Davros2013

    15% HCL Acid on NACE 4140 & 17/4 SS

    As the tool is down an oil well, it will be flushing past the tool for an hour. Once flushing stops, then the tool will be surrounded in well fluids (oil / gas / water) again. Thanks Dave
  5. Davros2013

    15% HCL Acid on NACE 4140 & 17/4 SS

    Hi Folks, Was wondering if anyone could help me on this one? We have a down hole oil tool that we are looking to flush 15% HCL Acid through for one hour. The tool is made up of several components that are NACE 4140 and some are NACE 17/4 material. Thanks in advance. Dave
  6. Davros2013

    Stub Acme or UN Threads

    thanks Cockroach. We use a programme called Thread Disk by Gagemaker - this allows design of a few types of threads incl stub acme, UN etc.
  7. Davros2013

    Stub Acme or UN Threads

    not sure if you are familiar with oilfield tools but more times than not, non standard sized threads need to be used. We've been doing it for years - tools can range up to 15" diameter.
  8. Davros2013

    Stub Acme or UN Threads

    Hi folks, Was just wondering if anyone could tell me the specific differences over Stub Acme Vs UN threads? As you know, you can design any thread size you like with these two types but why would you choose one over the other? I have heard in the past that stub acme threads have a tendency to...
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