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- Contacts：Linda
BPE AIP OIL CASING PIPE
The oil casing is a large-diameter pipe, which plays the role of supporting the oil or gas wells, or wellbore wall.
BPE produces about 200000 tons high quality casing pipes of seamless or ERW according to the latest edition of API 5 CT or Russian GOST every year.
Due to more than 10 years manufacturing experience, lean production principles, BPE get many good reputation from the customers all over the world, due to you could get whatever high quality API casing from BPE.
BPE also pays more attention on the logistic system management and just-in-time delivery, which make you reduce the wait and delivery time.
It is your first choice of API casing, thanks to BPE five basic type casings:
Conductor casing
Conductor casing is the first string set below the structural casing (i.e., drive pipe or marine conductor run to protect loose near-surface formations and to enable circulation of drilling fluid). The conductor isolates unconsolidated formations and water sands and protects against shallow gas. This is usually the string onto which the casing head is installed. A diverter or blowout prevention (BOP) stack may be installed onto this string. When cemented, this string is typically cemented to the surface or to the mud line in offshore wells. Its diameter is usually from 18" to 30".
Surface casing
Surface casing is set to provide blowout protection, isolate water sands, and prevent lost circulation. It also often provides adequate shoe strength to drill into high-pressure transition zones. In deviated wells, the surface casing may cover the build section to prevent key seating of the formation during deeper drilling. This string is typically cemented to the surface or to the mud line in offshore wells. The typical size of surface casing is 13⅜ inches.
Intermediate casing (optional)
Intermediate casing is set to isolate:
Unstable hole sections
Lost-circulation zones
Low-pressure zones
Production zones
It is often set in the transition zone from normal to abnormal pressure. The casing cement top must isolate any hydrocarbon zones. Some wells require multiple intermediate strings. Some intermediate strings may also be production strings if a liner is run beneath them.
Production casing
Production casing is used to isolate production zones and contain formation pressures in the event of a tubing leak. It may also be exposed to:
Injection pressures from fracture jobs
Down casing, gas lift
The injection of inhibitor oil
A good primary cement job is very critical for this string.
Production Liner
Liner is a casing string that does not extend back to the wellhead, but is hung from another casing string. Liners are used instead of full casing strings to:
Reduce cost
Improve hydraulic performance when drilling deeper
Allow the use of larger tubing above the liner top
Not represent a tension limitation for a rig
Liners can be either an intermediate or a production string. Liners are typically cemented over their entire length.
API Casing Specifications
|
Out Diameter: |
4-1/2”--20" |
|
Length |
R1. R2. R3 |
|
Thread |
PTC, STC, LTC, BTC |
|
Technique |
hot rolled |
|
Material grade |
H40, J55, K55, M65, N80, L80, C90, C95, T95, P110, Q125 |
|
Thread protector |
Plastic inside and steel outside with the right threads |
|
Outside painting |
Black painting on the body with color rings at the ends according to API 5CT Standard |
|
Casing O.D (in) |
Grade |
Nominal Weight (lb/ft) |
Casing Wall Thickness (in) |
Inner Diameter (in) |
Casing Drift Diameter (in) |
Thread Coupled O.D (in) |
|
4 1/2 |
J55 |
10.50 |
0.224 |
4.025 |
3.927 |
5.000 |
|
4 1/2 |
K55 |
10.50 |
0.224 |
4.025 |
3.927 |
5.000 |
|
4 1/2 |
J55 |
11.60 |
0.25 |
4.00 |
3.875 |
5.000 |
|
4 1/2 |
K55 |
11.60 |
0.25 |
4.00 |
3.875 |
5.000 |
|
4 1/2 |
N80 |
11.60 |
0.25 |
4.00 |
3.875 |
5.000 |
|
4 1/2 |
L80 |
11.60 |
0.25 |
4.00 |
3.875 |
5.000 |
|
5 |
J55 |
13.00 |
0.253 |
4.494 |
4.369 |
5.563 |
|
5 |
K55 |
13.00 |
0.253 |
4.494 |
4.369 |
5.563 |
|
5 |
J55 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 |
K55 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 |
N80 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 |
L80 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 |
C95 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 |
P110 |
15.00 |
0.296 |
4.408 |
4.283 |
5.563 |
|
5 1/2 |
J55 |
14.00 |
0.244 |
5.012 |
4.887 |
6.050 |
|
5 1/2 |
K55 |
14.00 |
0.244 |
5.012 |
4.887 |
6.050 |
|
5 1/2 |
J55 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
K55 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
N80 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
L80 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
C95 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
P110 |
17.00 |
0.304 |
4.892 |
4.767 |
6.050 |
|
5 1/2 |
L80 |
20.00 |
0.361 |
4.778 |
4.653 |
6.050 |
|
5 1/2 |
N80 |
20.00 |
0.361 |
4.778 |
4.653 |
6.050 |
|
5 1/2 |
C95 |
20.00 |
0.361 |
4.778 |
4.653 |
6.050 |
|
5 1/2 |
P110 |
20.00 |
0.361 |
4.778 |
4.653 |
6.050 |
|
7 |
H40 |
17.00 |
0.231 |
6.538 |
6.413 |
7.656 |
|
7 |
J55 |
23.00 |
0.317 |
6.366 |
6.241 |
7.656 |
|
7 |
K55 |
23.00 |
0.317 |
6.366 |
6.241 |
7.656 |
|
7 |
N80 |
23.00 |
0.317 |
6.366 |
6.241 |
7.656 |
|
7 |
L80 |
23.00 |
0.317 |
6.366 |
6.241 |
7.656 |
|
7 |
C95 |
23.00 |
0.317 |
6.366 |
6.241 |
7.656 |
|
7 |
J55 |
26.00 |
0.326 |
6.276 |
6.151 |
7.656 |
|
7 |
N80 |
26.00 |
0.326 |
6.276 |
6.151 |
7.656 |
|
7 |
L80 |
26.00 |
0.326 |
6.276 |
6.151 |
7.656 |
|
7 |
C95 |
26.00 |
0.326 |
6.276 |
6.151 |
7.656 |
|
7 |
P110 |
26.00 |
0.326 |
6.276 |
6.151 |
7.656 |
|
Casing O.D (in) |
Grade |
Nominal Weight (lb/ft) |
Casing Wall Thickness (in) |
Inner Diameter (in) |
Casing Drift Diameter (in) |
Thread Coupled O.D (in) |
|
9 5/8 |
J55 |
36.00 |
0.352 |
8.921 |
8.765 |
10.625 |
|
9 5/8 |
K55 |
36.00 |
0.352 |
8.921 |
8.765 |
10.625 |
|
9 5/8 |
J55 |
40.00 |
0.395 |
8.835 |
8.679 |
10.625 |
|
9 5/8 |
K55 |
40.00 |
0.395 |
8.835 |
8.679 |
10.625 |
|
9 5/8 |
N80 |
40.00 |
0.395 |
8.835 |
8.679 |
10.625 |
|
9 5/8 |
L80 |
40.00 |
0.395 |
8.835 |
8.679 |
10.625 |
|
9 5/8 |
C95 |
40.00 |
0.395 |
8.835 |
8.679 |
10.625 |
|
10 3/4 |
J55 |
40.50 |
0.350 |
10.050 |
9.894 |
11.750 |
|
10 3/4 |
K55 |
40.50 |
0.350 |
10.050 |
9.894 |
11.750 |
|
10 3/4 |
J55 |
45.50 |
0.400 |
9.950 |
9.794 |
11.750 |
|
10 3/4 |
K55 |
45.50 |
0.400 |
9.950 |
9.794 |
11.750 |
|
13 3/8 |
H40 |
48.00 |
0.330 |
12.715 |
12.559 |
14.375 |
|
13 3/8 |
J55 |
54.50 |
0.380 |
12.615 |
12.459 |
14.375 |
|
13 3/8 |
K55 |
54.50 |
0.380 |
12.615 |
12.459 |
14.375 |
|
13 3/8 |
J55 |
61.00 |
0.430 |
12.515 |
12.359 |
14.375 |
|
13 3/8 |
K55 |
61.00 |
0.430 |
12.515 |
12.359 |
14.375 |
|
16 |
J55 |
75.00 |
0.438 |
15.124 |
14.936 |
17.00 |
|
16 |
K55 |
75.00 |
0.438 |
15.124 |
14.936 |
17.00 |
|
16 |
J55 |
84.00 |
0.495 |
15.010 |
14.822 |
17.00 |
|
16 |
K55 |
84.00 |
0.495 |
15.010 |
14.822 |
17.00 |
|
18 5/8 |
H40 |
87.50 |
0.435 |
17.755 |
17.567 |
20.00 |
|
18 5/8 |
J55 |
87.50 |
0.435 |
17.755 |
17.567 |
20.00 |
|
18 5/8 |
K55 |
87.50 |
0.435 |
17.755 |
17.567 |
20.00 |
|
20 |
H40 |
94.00 |
0.438 |
19.124 |
18.936 |
21.00 |
|
20 |
J55 |
94.00 |
0.438 |
19.124 |
18.936 |
21.00 |
|
20 |
K55 |
94.00 |
0.438 |
19.124 |
18.936 |
21.00 |
|
20 |
J55 |
106.50 |
0.500 |
19.124 |
18.936 |
21.00 |
|
20 |
K55 |
106.50 |
0.500 |
19.124 |
18.936 |
21.00 |
|
20 |
J55 |
133.00 |
0.635 |
18.730 |
18.542 |
21.00 |
|
20 |
K55 |
133.00 |
0.635 |
18.730 |
18.542 |
21.00 |