Need a Quick Pressurization Quantity calculation check
Need a Quick Pressurization Quantity calculation check
(OP)
I am trying to figure out how much gas I need to pressure test a line. I have 300' of 20" pipe. I will fill with compressed air to 100 psig, and then I need to use a nitrogen tanker to boost it up to 250 psig. I am trying to figure out how much nitrogen. Here is my thinking:
Volume = (pie/4) * 20^2 * 300 / 144 to give me 655 cubic feet of pipe. I used the 20" OD to give me a cushion.
So for every 655 cubic feet of gas I introduce into the pipe, the pressure should reaise by 1 atm or 14.7 psi, correct? If so, then in order to get from 100 psig to 250 psig, I need:
(655 cuft)(150 psi / 14.7 psi) = 6684 cuft.
Agree?
Volume = (pie/4) * 20^2 * 300 / 144 to give me 655 cubic feet of pipe. I used the 20" OD to give me a cushion.
So for every 655 cubic feet of gas I introduce into the pipe, the pressure should reaise by 1 atm or 14.7 psi, correct? If so, then in order to get from 100 psig to 250 psig, I need:
(655 cuft)(150 psi / 14.7 psi) = 6684 cuft.
Agree?





RE: Need a Quick Pressurization Quantity calculation check
RE: Need a Quick Pressurization Quantity calculation check
RE: Need a Quick Pressurization Quantity calculation check
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Need a Quick Pressurization Quantity calculation check
Did you use D * pi^2 /2 ?
http://virtualpipeline.spaces.msn.com
RE: Need a Quick Pressurization Quantity calculation check
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: Need a Quick Pressurization Quantity calculation check
I want to write D^2/2 all the time. My trouble is that they taught me A = pi*R^2 back in gradeschool. Guess they didn't know I was gonna' be a pipeliner.
http://virtualpipeline.spaces.msn.com