(A) All casing, including surface protection and production strings, shall be either seamless steel or equivalent quality oil well casing. Each production string of casing must comply with at least the following minimum internal pressure yield strength, computed in accordance with A.P. I. standards, to wit.
Depth of String in Feet | Internal Pressure Rating (psi) |
Depth of String in Feet | Internal Pressure Rating (psi) |
10 3/4” Casing | |
0 – 1,160’ | 1,140 lbs. |
1,160 – 1,260’ | 1,820 lbs. |
8 5/8” Casing | |
0 – 1,690’ | 1,340 lbs. |
1,690 – 2,540’ | 2,950 lbs. |
7” Casing | |
0 – 1,960’ | 1,440 lbs. |
1,960 – 2,440’ | 2,310 lbs. |
2,440 – 3,410’ | 2,720 lbs. |
3,410 – 4,440’ | 3,740 lbs. |
5 1/2” Casing | |
0 – 4,340’ | 3,110 lbs. |
4,340 – 5,640’ | 4,270 lbs. |
5,640 – 6,860’ | 5,810 lbs. |
4 1/2” Casing | |
0 – 3,410’ | 1,990 lbs. |
3,410 – 4,530’ | 3,190 lbs. |
4,530 – 5,900’ | 4,380 lbs. |
(B) Each joint and length of each particular casing string shall have, prior to setting, unconditionally passed a complete cold water test.
(Prior Code, § 18-13)