"Scott, To determine a %, divide calculated by actual. In your example :
6000/6500=.923 or 9%. But, take a look at my comment to Anita. A top hand subtracts the cased hole strokes. True W.O. is in O.H."
"Thnks Rachain but well i guess my question i was too vague with it..ok here. the lag at lets say 8000ft is 6000 strokes...the lag from that depth came up at 6500 stks. 500 stks late and pump outputs is .0997 so thats 49.85 bbls of washout. Now here…"
"i have a question...How do u determine washout percentage? Do u take ur hole volume in barrels and divide that into your washout barrels to get your washout percent? or do u add ur washout barrels to your open hole volume and then divide the volume…"