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Recent content by Hookem

  1. Hookem

    Ken Wind Separator

    I found a Ken Wind; at one time, he owned his own company; I had bought an indirect water bath heater from him once. I believe that he has since hired on with the Hanover Company, Houston, TX.
  2. Hookem

    Crude oil velocity in pipelines for various API grades

    Industry standards are 3 fps minimum, 10 fps average, 15 fps maximum. Use lower values in suction piping to pumps.
  3. Hookem

    ABANDONMENT OF OIL AND GAS FACILITIES

    Remove pressure, displace hydrocarbon liquids (push with water or nitrogen into waiting vacuum trucks), check sedimentation in bottom of vessels and tanks for NORM, check protective coatings for lead based paints, unflange and remove all above-ground piping & concrete, remove caliche, rock...
  4. Hookem

    Plate bending deflection in 3D

    It is ALWAYS a good idea to check any computer calculation by hand. For the hand calculation, consider looking up Formulas for Stress and Strain by O'Rourke. They have formulas for bending if square, rectangular, round, oval, etc. plate for many, many, many boundry conditions. Happy Hunting.
  5. Hookem

    Gas Pipeline Branch Reinforcement

    Having done numerous calculations, it is no wonder you show that no added repad is required. This is because there is more wall thickness than required for pressure alone; the difference is credited to reinforcement. The driver of course is the 99 psig. The answer would be entirely different...
  6. Hookem

    Submerged Tank

    Why take credit for the soil? If the soil is saturated, it offers no resistance to vertical movement of objects placed in it. Think of an air-filled object being in water and the force trying to push it up to the surface. Now, displace that water with a water-mud slurry. What do you get...
  7. Hookem

    Pipeline eningeering for dummies

    Learn how to type and spell correctly. Inattention to small items reflect badly upon the writer. Now that you are an engineer (chemical, civil, electrical, process, etc.) spell (and type) all communications.
  8. Hookem

    methyl mercaptan odor control

    Consider an incinerator.
  9. Hookem

    How can I calculated loads on support on a pipe rack

    For the horizontals, the worst loading case is using the full width of pipe rack that is fully occupied by 8 inch NPS pipe that are 100% filled with water. To the verticals, include fire-proofing, fire extinguishers, electrical & instrumentation end devices, utility piping, etc. If you goal is...
  10. Hookem

    TEG dehydration

    Consider inlet gas temperature (keep it as low as possible). Consider inlet gas pressure (keep it as high as possible). Consider inlet gas separation and filtering (keep out lube oils and amines). Calculate water removal (lbs/mmcf times mm/d); start with 3 gallons of glycol circulation for...
  11. Hookem

    Firetube design according to API 12K

    Saw your note about API 12K and heaters. Do you have excel equipment datasheet? That would be most useful. chesney@uei-houston.com Thanks.
  12. Hookem

    Design Criteria Buried Steel Piping

    API 1102 5th Edition is based on Spangler; API 6th Edition (current) is based on research by GRI/Cornell University. One should do the calculations per this methodology by hand the first time to understand, but thereafter by excel spreadsheet or software program. Or, contact a consultant.
  13. Hookem

    piping connected to pig receivers

    Soil is not rigid; rather, it is a sem-solid liquid, per my college professor. When pushed upon, it moves, albiet almost impercetably, yet, it moves. In fact, most footings, foundations, etc. have designs that are not based on strains and stresses as we spend so much time learning, but rather...
  14. Hookem

    Uplift for Anchored Steel Tanks

    This approach very simply assumes that all uplift forces are applied at the bolts. That's fine, but your efforts do not end there. One must also consider uplift forces beneath the tank because external fluid pressure will be exerted there because the tank edges do not form a seal. Do not...
  15. Hookem

    Piston failure of a recip comperessor

    Is the cylinder double acting? or SACE? or SAHE? Have you (or had someone else) check for rod load? and for rod load reversal? Have you verified that lubricating oil in the manufacturer's quantity and quality have been supplied?
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