Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by ARCH01

  1. ARCH01

    Downhole Oil Water Separation?

    I think the main problem is what to do with the separated water. Water will tend to displace any further oil that is trying to get into wellbore. Perhaps if after separating the water it could be directed into a specific disposal zone this will be a fantastic idea. The other concern is that the...
  2. ARCH01

    Centrifugal Trapped Liquid Hazard

    Montemayor, Thanks for your reply. Let me provide necessary clarifications: 1) There is a shutdown valve and a check valve on the discharge side of the pump. 2) The suction line of the pump connects to a manifold with three laterals for various water supplies. There are check valves on each...
  3. ARCH01

    Centrifugal Trapped Liquid Hazard

    RZRBK Thanks for your reply. the scenario presented here is that the discharge valve is closed tight (i.e. no leak or reverse flow through it). The suction of the pump is equipped with a check valve. If the pump stops, water will likely flow back from the high pressure 1500# to the low pressure...
  4. ARCH01

    Centrifugal Trapped Liquid Hazard

    A multi-stage centrifugal pump is proposed for an application with 60 psig (ANSI 150#) suction pressure and 2500 psig discharge pressure (Ansi 1500#). The pump is equipped with discharge shutdown and check valves. A question was raised related with the possibility of high pressure water...
  5. ARCH01

    N-Butane Refrigerated Tank

    In order to maintain the pressure of an atmospheric refrigerated tank within 1 to 5" H2O for nC4 storage, it has been proposed to circulate a portion of the liquid product through a propane chiller. The amount of refrigerant will be regulated to maintain desired tank pressure. Although from the...
  6. ARCH01

    Amine Unit Piping Class

    A question has been brought regarding the need of PWHT piping in amine serive for CO2 removal only to prevent SCC. Can somebody provide more information as to what is the corrosion mechanism leading to SCC in amine service?
  7. ARCH01

    Amine Unit Filter - Carbon Particle Carryover

    We're proceeding with the design of an amine unit. The carbon filter design includes a Johnson screen with 0.011" slots. A question has been brought to determine if a guard filter is required downstream of the carbon bed to prevent carryover of carbon particles into the regeneration column. I...
  8. ARCH01

    Temperature re-rating of CS vessel

    We have a gas plant where design temperature of carbon steel vessel is -20 F. We want to modify that temperature to -40 F. What test or post-treatment would be necessary (i.e., stress relieve or Charpy test?
  9. ARCH01

    Tank Blanketing

    In addition to minimizing potential for safety hazards associated with the presence of flammable mixtures inside the tanks, it is also desirable to install gas blanketting to prevent air ingress and associated corrosion and compliance with sales gas specs, when tanks are connected to a vapor...
  10. ARCH01

    Restriction Orifices in Choked Flow?

    To the original question: Yes, you can have a downstream pressure below the critical value. This pressure will be governed by the choked flowrate (or maximum flowrate at dP critical) and downstream system characteristics. If you know upstream pressure and orifice size, you can determine...
See more

Part and Inventory Search

Back
Top