Standard: API 5CT, ISO11960, API 5B, API Q1
Specification:
Tubing 1.315"- 4-1/2"
Casing 4-1/2"- 20"
Steel Grade: H40,J55,K55,N80,L80-1,L80-9Cr,L80-13Cr,C90,T95,C110,Q125,V130,V140,V150
Connection: STC,LTC,BTC
Casing
Well casing and tubing 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.
We are also able to supply casing with non-API specifications for special situations, including those with semi-premium and premium connections.
Below is a list of standard API5CT specifications, all of which we supply.
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 |
SC (Short round Thread Casing),
LC (Long round Thread Casing),
BC (Buttress Thread Casing),
|
|
|
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. |
|
Tubing
Once the casing is run and held in place with cement, production tubing is run into the oilwell.
Joints of tubing are connected together with couplings to make up a tubing string. Running tubing into an oilwell is much the same as for running in casing, but tubing is smaller in diameter and is removable.
The prodution string provides a continuous bore from the reservoir to the wellhead and together with the other components of the production string, produces oil and gas at the surface.
As opposed to casing, production tubing is designed to enable quick, efficient, and safe installation, removal and re-installation.
Oil and gas is also produced more effectively through tubing than through larger-diameter production casing.
API5CT Tubing Specifications:
|
Specification |
|
|
|
Sizes |
Outside Diameter (Inches) |
Corresponding Poundage (Pounds Per Foot) |
|
|
1.050 |
1.14 PPF to 1.54 PPF |
|
|
1.315 |
1.70 PPF to 2.24 PPF |
|
|
1.660 |
2.09 PPF to 3.07 PPF |
|
|
1.900 |
2.40 PPF to 5.15 PPF |
|
|
2.063 |
3.24 PPF to 4.50 PPF |
|
|
2-3/8 |
4.00 PPF to 7.45 PPF |
|
|
2-7/8 |
6.40 PPF to 11.50 PPF |
|
|
3-1/2 |
7.70 PPF to 17.00 PPF |
|
|
4 |
9.50 PPF to 22.20 PPF |
|
|
4-1/2 |
12.60 PPF to 26.10 PPF |
|
Grades |
H40, J55, N80, N80Q, L80, C90, C95, T95, P110, 13CR |
|
|
Connections |
NUE (non-upset tubing),
EUE (external upset tubing), |
|
|
Lengths |
Range 1, Range 2 & Range 3 |
|
|
Protection |
External Bare and Uncoated OR Externally Coated with Anti-Rust Mill Varnish
Plastic OR Metal Pin and Box Protectors.
Internal Plastic Coating OR Sleeves. |
|
|
Mill Test Certificates |
Issued in accordance with API Specification 5CT Eighth Edition.
Third Party Inspection can be performed on request at buyer’s care and expense. |
|
