This is the 3rd part of **well control formulas**.

**Annulus Capacity Factor (ACF),bbl/ft**

**Final Circulating Pressure (FCP), psi**

**Surface To Bit Strokes, strokes**

**Circulating Time, mins**

**Capacity Factor (CF), bbl/ft**

**Opened End Pipe Displacement, bbl/ft**

**Closed end pipe displacement, bbl/ft**

**Ref book: ** **Formulas and Calculations for Drilling, Production and Workover, Second Edition**

**Well Control Books**

GOOD EXPLANATION ON CLOSED END DISPLACEMENT AND OPEN END DISPLACEMENT

I like to know all type of calculations about well control