Casing pipe
The casing is designed for mounting of oil and gas wells during their construction and operation.
Casing conform to the American petroleum Institute (API) specifications 5CT and are suitable for oil drilling.
Description
Specification and technical parameters
| Externallyiy diamETR, mm
(inch) |
Nominal
inthe EU, (Ib/ft) |
Wall thickness, mm
(inch) |
Interiorindoor diamETR, mm
(inch) |
DiamETR passage, mm
(inch) |
Thread type | Mark
steel |
Length, m
(inch) |
| ∅139.7 （5-1/2） |
20.85 (0.244) 23.09 (15.50) 25.32 (17.00) 29.79rong> (20.00) 34.26 (23.00) |
6.20 (0.244) 6.98 (0.275) 7.72 (0.304) 9.17 (0.361) 10.54 (0.415) |
∅127.3 (5.012) ∅125.7 (4.950) ∅124.3 (4.892) ∅121.4 (4.778) ∅118.6 (4.670) |
∅124.1 (4.887) ∅122.6 (4.825) ∅121.1 (4.767) ∅118.2 (4.653) ∅115.4 (4.545) |
CSG
BCSG |
j55 n80 p110 |
8m-12m (2602-39.4) |
| ∅177.8 （7） |
25.52 (17.00) 29.79 (20.00) 34.26 (23.00) 38.73 (26.00) 43.20 (29.00) 47.66 (32.00) 52.13 (35.00) 56.60 (38.00g>) |
5.87 (0.231) 6.91 (0.272) 8.05 (0.317) 9.19 (0.362) 10.36 (0.408) 11.51 (0.453) 12.65 (0.498) 13.72 (0.540) |
∅166.1 (6.538) ∅164.2 (6.456) ∅161.7 (6.366) ∅159.4 (6.276) ∅157.1 (6.180) ∅154.8 (6.090) ∅152.5 (6.004) ∅150.4 (5.430) |
∅162.9(6.413) ∅160.8(6.331) ∅158.5(6.204) ∅156.2(6.151) ∅153.9(6.059) ∅151.6(5.969) ∅149.3(5.879) ∅147.2(5.795) |
CSG
BCSG |
j55 n80 p110 |
8m-12m (2602-39.4) |
| ∅219.1 （8-5/8） |
35.75 (24.00) 41.71 (28.00) 47.66 (32.00) 53.62 (36.00) 59.58 (40.00) |
6.71 (0.264) 7.72 (0.304) 8.94 (0.352) 10.16 (0.400) 11.43 (0.450) |
∅205.7 (8.093) ∅203.7 (8.020) ∅201.2 (7.927) ∅198.8 (7.827) ∅196.2 (7.724) |
∅202.5 (7.972) ∅200.5 (7.894) ∅198.0 (7.795) ∅195.6 (7.701) ∅193.0 (7.598) |
CSG
BCSG |
j55 n80 p110 |
8m-12m (2602-39.4) |
| With ∅244.5 （9-5/8） |
48.11 (32.30) 53.62 (36.00) 59.58 (40.00) 64.79 (43.50) 70.01 (47.00) 71.69 (53.50) |
7.92 (0.312) 8.94 (0.352) 10.03 (0.395) 11.05 (0.435) 11.99 (0.472) 13.84 (0.545) |
∅328.7 (9.001) ∅236.6 (8.921) ∅224.4 (8.835) ∅232.4 (8.755) ∅320.5 (8.681) ∅216.8 (8.535) |
∅244.7(8.845) ∅222.6(8.765) ∅220.4(8.679) ∅218.4(8.599) ∅216.5(8.525) ∅212.8(8.379) |
CSG
BCSG |
j55 n80 p110 |
8m-12m (2602-39.4) |
| ∅273.0 （10-3/4） |
48.78 (32.75) 60.32 (40.50) 67.77 (45.50) 75.96（51.00) 82.67 (55.50) |
7.09 (0.279) 8.89 (0.350) 10.26 (0.400) 11.43 (0.450) 12.57 (0.495) |
∅258.9 (10.192) ∅255.3 (10.050) ∅252.7 (9.950) ∅250.2 (9.850) ∅247.9 (9.760) |
∅254.9 (10.035) ∅251.3 (9.894) ∅248.8 (9.794) ∅246.2 (9.694) ∅243.9 (9.604) |
CSG
BCSG |
j55 />n80 p110 |
8m-12m (2602-39.4) |
| ∅339.7 （13-3/8） |
71.50 (48.00) 81.18 (54.50) 90.86 (61.00) 101.69 (68.00) |
8.38 (0.330) 9.65 (0.380) 10.92 (0.430) 12.19 (0.480) |
∅322.9 (12.715) ∅320.4 (12.615) ∅317.9 (12.515) ∅315.3 (12.415) |
∅319.0 (12.559) ∅316.5 (12.459) ∅313.9 (12.359) ∅311.4 (12.259) |
CSG
BCSG |
j55 n80 p110 |
8m-12m (2602-39.4) |