Vogel problems often involve flow efficiency (FE). Why? They both need Pwf & Pr.
Example: Say Pwf = 1M and Pr = 2M psi at q = 490 BOPD. What is qmax?
Go to the Vogel table (7 PRD 1) with Pwf/Pr = 0.5; note qo/qmax = 0.7.
So qmax = qo/0.7 = 490/0.7 = 700
BOPD.
But what then if FE is 0.7 and we stimulate to an FE = 1? See 12 WLT 2:
Another way to describe FE: the percentage of well fluid producing at a given drawdown compared to what it would produce with zero skin (FE = 1).
So at FE = 1.7M/0.7 = 1,000 BOPD.
Showing posts with label Flow Efficiency. Show all posts
Showing posts with label Flow Efficiency. Show all posts
Thursday, June 28, 2018
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