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Depth of washout

Method 1:

Strokes pumped till pressure increase 400 strokesInternal capacity of drill pipe 0.00742 bbl/ft

Pump output 0.0855 bbl/stk

Dept of !asout 4"0# ft

Method 2:

Strokes pumped till material seen 2500 strokes

Internal capacity of drill pipe 0.00742 bbl/ft

$nnulus capacity 0.0455 bbl/ft

Pump output 0.0855 bbl/stk

%olume from bell nipple to sale sakers &0 bbl

Dept of !asout '850 ft

(e concept of tis metod is to pump plu))in) materialincrease ten !e can calculate back !ere te !asout

(e concept of tis metod is to pump material tat canand o+er te surface. *e can calculate te dept of !asann

7/23/2019 Depth of Washout

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Input cellscalculated cells

to plu) te !as out. *e !ill kno! o! many stroks pump till pressureis.

!!!.drillin)formulas.com

be easily obser+ed from drill pipe pass trou) !as out into annulusout bases on te combination +olume of internal drill pipe +olume and

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