Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Flow rate vs rev/gal

  1. Feb 2, 2010 #1
    I want to pump fluids (flow rate) through a drill string to a downhole motor some distance beneath the surface building up some differential pressure (psi). depending on the amount of differential pressure and the flow rate (gpm) the motor rotates at some rotational speed (rpm). what is the relationship between flow rate (gpm), rev/gal, differentail pressure (psi) and rotational speed (rpm)? Is the speed constant or rev/gal constant or linear? Is the flow rate linear as the differentail pressure increases or a drop curve? If a drop curve, what might be the variables that cause this drop? Is there a good sight that explains this in a simplistic manner? Is there a formula to calculate each item? any help is appreciated....
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Flow rate vs rev/gal
  1. Flow rate and valves (Replies: 17)

  2. Flow rate (Replies: 18)

  3. Flow rate of sand (Replies: 1)

Loading...