Distance, Volume, Hp. Pressure

Draw a box around your answers.

Gas lift mandrels will be installed in the tubing and the well will be gas lifted.  Assume SF 1.1.

Cement for the 5-1/2” production casing is as follows:

Float track:  3 bbls

Tail:  16.6 ppg, yield 1.11 cuft/sx, cement top 13,385’ MD, 11,485’ TVD

Lead:  14.3 ppg, yield 1.46 cuft/sx, cement length 3,300’ MD and 1,495’ TVD

Spacer:  12.0 ppg, length spacer length 450’ MD and 440’ TVD

Well TD’d using a 14.8 ppg mud

Assume only 20 lb/ft casing is in stock and available for the well.

Show your work on the following pages.

Draw a box around your answers.

1. Calculate the distance from the float collar to the float shoe.
2. Calculate the volume of tail cement in the annulus in bbls and cuft
3. Calculate the volume of lead cement in the annulus in bbls and cuft
4. Calculate the depth of the top of the spacer
5. Calculate the HP at the top of the spacer (bottom of the mud)
6. Calculate the HP at the top of the lead cement (bottom of the spacer)
7. Calculate the HP at the top of the tail cement (bottom of the lead cement)
8. Calculate the HP at the bottom of the well

8. Calculate the HP at the zone of interest
9. Calculate the collapse LL pressure at TD
10. Calculate the collapse BU pressure at TD
11. Calculate the collapse RL pressure at TD
12. Calculate the collapse DL pressure at TD