Strokes to displace drill string annulus and total circulation from kelly to shale shaker

Strokes = barrels + pump output, bbl/stk

Example: Determine volumes and strokes for the following:

Length =

Drill collars—8.0in. OD

Inside diameter =

Length =

Setting depth =

Pump data—7 in. by 12in. triplex Efficiency = 95%

Hole size = 12-1/4in.

  1. 276in. 9400 ft
  2. 0in. 600 ft
  3. 615in 4500 ft

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