Construct a wellbore diagram given the following information:
13 3/8 “ casing @ 545 ft
8 5/8” casing @ 2650 ft
4 1/2” production casing @4800 ft
2 3/8” Tbg set on packer @4630 ft with 40 ft tailpipe
Target sand @ 4700-4800
Perforations @ 4720-4780 4 shots/ft
Total depth@ 4900 ft
Cement yield 1.18 cu ft/sk Class A 15.0 ppg
The hole size is 7 7/8” used to drill to TD
A 12.5 ppg drilling mud was used to drill well
- Calculate cement fillup in sacks on 4 1/2” x 8 5/8” casing and 7 7/8” hole“ back to 2300 ft?
- How many bbls displacement volume on 4.5” casing to place cement?
- What is the hydrostatic pressure on the formation at 4750 ft once the top cement plug is landed?
Sample Solution
