Well casing is an integral part of the oil drilling and completion process.
In general, casing provides structure and strength to the walls of the well hole so that it doesn’t collapse on itself. It also ensures that there is no seepage of oil or natural gas out of the well hole as these are brought to the surface.
(Click any of the above for its description.)
Careful planning is required so that the proper casing for each well is installed. Subsurface characteristics, the diameter of the well, and the pressures and temperatures experienced throughout the well, are all taken into account when planning the various casing strings.
Below is a list of standard API5CT specifications, all of which we supply.
We are also able to supply casing with non-API specifications for special situations, including those with semi-premium and premium connections.
Essentially, we are able to accommodate all your tubular requirements, many times with ready stock.
Please contact us to discuss your requirements.
Specification | ||
Sizes | Outside Diameter (Inches) | Available Poundage (Pounds Per Foot) |
4-1/2 | 9.50 PPF to 15.10 PPF | |
5 | 11.50 PPF to 24.10 PPF | |
5-1/2 | 14.00 PPF to 43.10 PPF | |
6-5/8 | 20.00 PPF to 32.00 PPF | |
7 | 17.00 PPF to 57.10 PPF | |
7-5/8 | 24.00 PPF to 55.30 PPF | |
7-3/4 | 46.10 PPF | |
8-5/8 | 24.00 PPF to 49.00 PPF | |
9-5/8 | 32.30 PPF to 75.60 PPF | |
10-3/4 | 32.75 PPF to 85.30 PPF | |
11-3/4 | 42.00 PPF to 71.00 PPF | |
13-3/8 | 48.00 PPF to 72.00 PPF | |
16 | 65.00 PPF to 109.00 PPF | |
18-5/8 | 87.50 PPF | |
20 | 94.00 PPF to 133.00 PPF | |
Material Grades | H40, J55, K55, M65, N80, N80Q, L80, C90, C95, T95, P110, Q125, L80-9CR, L80-13CR | |
Connections |
STC (Short round Thread Casing), LC (Long round Thread Casing), BC (Buttress Thread Casing), XC (Extreme-Line Casing). [Please enquire for semi-premium and premium connections. See also our Metal One Connections.] |
|
Lengths | Range 1, Range 2 & Range 3 | |
Product Level Specification |
PSL-1 PSL-2 PSL-3 Supplementary Requirement – Only Upon Request |
|
Protection |
Externally Coated with Anti-Rust Mill Varnish Plastic , Metal or Composite Pin and Box Protectors. Internal ID - Bare, Without Coating. |
|
Mill Test Certificates |
Issued in accordance with API Specification 5CT latest Edition at time of mill rolling. Third Party Inspection can be performed on request at buyer’s care and expense. |