Casing

Casing
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Casing is a series of steel pipes that are set inside the drilled wells to stabilize well or boreholes. Every well is equipped with different casing according to drilling depth and geological condition. Our casings meet API Spec 5CT, API Spec 5B, PSL1, PSL2 and PSL3 standards. The bore diameter of customized products is between114.30 and 339.72mm.

Specifications and standards are as follow:API 5CT PSL1 Casing Production Specification
Serial Number Steel Grade Specification Standard
Outer Diameter /mm Thickness/mm Length/m
1 H40 114.30~339.72 5.21~12.19 6~12 API 5CT

J55
K55
2 M65 114.30~339.72 5.21~15.88
N80-1
N80Q
R95
L80-1
C90-1
T95-1
C110
P110
Q125-1
API 5CT PSL2 Casing Production Specification
Serial Number Steel Grade Specification Standard
Outer Diameter /mm Thickness/mm Length/m
1 J55 114.30~339.72 5.21~12.19 6~12 API 5CT

K55
N80-1
2 M65 114.30~339.72 5.21~15.88
N80Q
R95
L80-1
C90-1
T95-1
P110
Q125-1
API 5CT PSL3 Casing Production Specification
Serial Number Steel Grade Specification Standard
Outer Diameter /mm Thickness /mm Length /m
1 J55 114.30~339.72 5.21~15.88 6~12 API 5CT

K55
2 M65
N80Q
R95
L80-1
C90-1
T95-1
P110
Q125-1

Note:
H40 and C110 only reach PSL1 level
N80-1 reaches PSL2 level, not PSL3 level

Specific specifications
British System Metric System Type of pipe finishing
Outer Diameter Thickness Outer Diameter mm Thickness mm H40 J55/K55 M65 L80/R95 N80(1/Q) C90/T95 C110 P110 Q125
5-1/2 14.00 139.70 6.20 PS PS PS / / / / / /
5-1/2 15.50 139.70 6.98 / PSLB PSLB / / / / / /
5-1/2 17.00 139.70 7.72 / PSLB PLB PLB PLB PLB P PLB /
5-1/2 20.00 139.70 9.17 / / PLB PLB PLB PLB P PLB /
5-1/2 23.00 139.70 10.54 / / PLB PLB PLB PLB P PLB PLB
5-1/2 26.80 139.70 12.70 / / / / / P P / /
5-1/2 29.70 139.70 14.27 / / / / / P P / /
5-1/2 32.60 139.70 15.88 / / / / / P P / /
5-1/2 35.30 139.70 17.45 / / / / / P P / /
5-1/2 38.00 139.70 19.05 / / / / / P P / /
5-1/2 40.50 139.70 20.62 / / / / / P P / /
5-1/2 43.10 139.70 22.22 / / / / / P P / /
6-5/8 20.00 168.28 7.32 PS PSLB PSLB / / / / / /
6-5/8 24.00 168.28 8.94 / PSLB PLB PLB PLB PLB P PLB /
6-5/8 28.00 168.28 10.59 / / PLB PLB PLB PLB P PLB /
6-5/8 32.00 168.28 12.06 / / / PLB PLB PLB P PLB PLB
7 17.00 177.80 5.87 PS / / / / / / / /
7 20.00 177.80 6.91 PS PS PS / / / / / /
7 23.00 177.80 8.05 / PSLB PLB PLB PLB PLB P / /
7 26.00 177.80 9.19 / PSLB PLB PLB PLB PLB P PLB /
7 29.00 177.80 10.36 / / PLB PLB PLB PLB P PLB /
7 32.00 177.80 11.51 / / PLB PLB PLB PLB P PLB /
7 35.00 177.80 12.65 / / / PLB PLB PLB P PLB PLB
7 38.00 177.80 13.72 / / / PLB PLB PLB P PLB PLB
7 42.70 177.80 15.88 / / / / / P P / /
7 46.40 177.80 17.45 / / / / / P P / /
7 50.10 177.80 19.05 / / / / / P P / /
7 53.60 177.80 20.62 / / / / / P P / /
7 57.10 177.80 22.22 / / / / / P P / /
7-5/8 24.00 193.68 7.26 PS / / / / / / / /
7-5/8 26.40 193.68 8.33 / PSLB PSLB PLB PLB PLB P / /
7-5/8 29.70 193.68 9.52 / / PLB PLB PLB PLB P PLB /
7-5/8 33.70 193.68 10.92 / / PLB PLB PLB PLB P PLB /
7-5/8 39.00 193.68 12.70 / / / PLB PLB PLB P PLB PLB
7-5/8 42.80 193.68 14.27 / / / PLB PLB PLB P PLB PLB
7-5/8 45.30 193.68 15.11 / / / PLB PLB PLB P PLB PLB
7-5/8 47.10 193.68 15.88 / / / PLB PLB PLB P PLB PLB
7-5/8 51.20 193.68 17.45 / / / / / P P / /
7-5/8 55.30 193.68 19.05 / / / / / P P / /
7-3/4 46.10 196.85 15.11 / / / P P P P P P
8-5/8 24.00 219.08 6.71 / PS PS / / / / / /
8-5/8 28.00 219.08 7.72 PS / PS / / / / / /
8-5/8 32.00 219.08 8.94 PS PSLB PSLB / / / / / /
8-5/8 36.00 219.08 10.16 / PSLB PSLB PLB PLB PLB P / /
8-5/8 40.00 219.08 11.43 / / PLB PLB PLB PLB P PLB /
8-5/8 44.00 219.08 12.70 / / / PLB PLB PLB P PLB /
8-5/8 49.00 219.08 14.15 / / / PLB PLB PLB P PLB PLB
9-5/8 32.30 244.48 7.92 PS / / / / / / / /
9-5/8 36.00 244.48 8.94 PS PSLB PSLB / / / / / /
9-5/8 40.00 244.48 10.03 / PSLB PSLB PLB PLB PLB P / /
9-5/8 43.50 244.48 11.05 / / PLB PLB PLB PLB P PLB /
9-5/8 47.00 244.48 11.99 / / PLB PLB PLB PLB P PLB PLB
9-5/8 53.50 244.48 13.84 / / / PLB PLB PLB P PLB PLB
9-5/8 58.40 244.48 15.11 / / / PLB PLB PLB P PLB PLB
9-5/8 59.40 244.48 15.47 / / / / / P P / /
9-5/8 64.90 244.48 17.07 / / / / / P P / /
9-5/8 70.30 244.48 18.64 / / / / / P P / /
9-5/8 75.60 244.48 20.24 / / / / / P P / /
10-3/4 32.75 273.05 7.09 PS / / / / / / / /
10-3/4 40.50 273.05 8.89 PS PSB PSB / / / / / /
10-3/4 45.50 273.05 10.16 / PSB PSB / / / / / /
10-3/4 51.00 273.05 11.43 / PSB PSB PSB PSB PSB P PSB /
10-3/4 55.50 273.05 12.57 / / PSB PSB PSB PSB P PSB /
10-3/4 60.70 273.05 13.84 / / / / / PSB P PSB PSB
10-3/4 65.70 273.05 15.11 / / / / / PSB P PSB PSB
10-3/4 73.20 273.05 17.07 / / / / / P P / /
10-3/4 79.20 273.05 18.64 / / / / / P P / /
10-3/4 85.30 273.05 20.24 / / / / / P P / /
11-3/4 42.00 298.45 8.46 PS / / / / / / / /
11-3/4 47.00 298.45 9.53 / PSB PSB / / / / / /
11-3/4 54.00 298.45 11.05 / PSB PSB / / / / / /
11-3/4 60.00 298.45 12.42 / PSB PSB PSB PSB PSB P PSB PSB
11-3/4 65.00 298.45 13.56 / / / P P P P P P
11-3/4 71.00 298.45 14.78 / / / P P P P P P
13-3/8 48.00 339.72 8.38 PS / / / / / / / /
13-3/8 54.50 339.72 9.65 / PSB PSB / / / / / /
13-3/8 61.00 339.72 10.92 / PSB PSB / / / / / /
13-3/8 68.00 339.72 12.19 / PSB PSB PSB PSB PSB P PSB /
13-3/8 72.00 339.72 13.06 / / / PSB PSB PSB P PSB PSB
Ps: P--- Plain-end; S--- Short round thread; L--- Long round thread; B--- Buttress thread

China geological equipment group Co., Ltd (CGE) is a wholly-owned subsidiary of a world top 500 enterprise - China National Machinery Industry Corporation. It devotes to offer high-quality equipment, instruments and drilling tools in fields like national resources, energy, environment and construction. CGE has two oil drilling bases: one in Zhangjiakou, Hebei and the other in Wuxi, Jiangsu. Zhangjiakou base mainly produces API Spec 11B sucker rods, including sinker bars, high strength sucker rods, hollow sucker rods, ordinary sucker rods, tubing and casing couplings; Wuxi base mainly produces API Spec 5CT and API Spec 5B casings.

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