An Overview of casing Pipe materials: J55, K55, N80, L80, and P110

casing pipes are an essential component of Oil and gas production. They are used to protect the wellbore from the pressure of the surrounding environment and to ensure the safe and efficient extraction of oil and gas. There are several different materials used for casing pipes, including J55, K55, N80, L80, and P110.

J55 is a low-cost material that is used in shallow wells and is the most common type of casing pipe. It is made from a low-carbon steel and is relatively easy to work with.

          Calculated Mass c
    Nominal Linear Mass T& C b,c Wall Thick- ness       em, Mass Gain or Loss Due to End Finishing d
Labels a Outside Diameter     Inside Diameter Drift Diameter Plain- end kg
              Round Thread Buttress Thread
            wpe        
  D kg/m t D mm kg/m Short Long RC SCC
  mm   mm mm            
1 2 3 4 5 6 7 8 9 10 11 12
10 3/4 32.75 273.05 48.74 7.09 258.9 254.91 46.5 13.94 — 15.38 — 3.03
10 3/4 40.5 273.05 60.27 8.89 255.3 251.31 57.91 11.91 14.21 1.86
10 3/4 45.5 273.05 67.71 10.16 252.7 250.82 e 248.77 246.23 246.33 65.87 11 14.21 1.86
10 3/4 45.5 273.05 67.71 10.16 252.7 244.48 e 65.87 11 13.05 0.7
10 3/4 51 273.05 75.9 11.43 250.2 244.48 e 243.94 243.94 241.40 241.40 238.86 238.86 234.95 231.80 228.60 73.75 10.11 13.05 0.7
10 3/4 51 273.05 75.9 11.43 250.2   73.75 10.16 f 12.25 –0.09
10 3/4 55.5 273.05 82.59 12.57 247.9   80.75 9.3 12.01 –0.34
10 3/4 55.5 273.05 82.59 12.57 247.9   80.75 9.35 f 12.25 –0.09
10 3/4 55.5 273.05 82.59 12.57 247.9   80.75 9.3 12.01 –0.34
10 3/4 55.5 273.05 82.59 12.57 247.9   80.75 9.35 f 11.07
10 3/4 60.7 273.05 90.33 13.84 245.4   88.47 8.42 10.87
10 3/4 60.7 273.05 90.33 13.84 245.4   88.47 8.47 f 9.98
10 3/4 65.7 273.05 97.77 15.11 242.8   96.12 7.54 9.74
10 3/4 65.7 273.05 97.77 15.11 242.8   96.12 7.60 f
10 3/4 73.2 273.05 108.93 17.07 238.9   107.76
10 3/4 79.2 273.05 117.86 18.64 235.8   116.95
10 3/4 85.3 273.05 126.94 20.24 232.6   126.19    
11 3/4 42 298.45 62.5 8.46 281.5 279.40 e 277.50 275.44 272.39 62.56 13.27
11 3/4 42 298.45 62.5 8.46 281.5 269.88 e 62.56 13.27 — 16.04
11 3/4 47 298.45 69.94 9.52 279.41 269.88 e 67.83 12.42 14.5
11 3/4 54 298.45 80.36 11.05 276.4 269.65 78.32 11.23 13.12
11 3/4 60 298.45 89.29 12.42 273.6 269.65 e 87.61 10.17 13.12
11 3/4 60 298.45 89.29 12.42 273.6 269.88 e 267.36 264.92 87.61 9.77 f 13.12
11 3/4 60 298.45 89.29 12.42 273.6   87.61 10.17 13.12
11 3/4 60 298.45 89.29 12.42 273.6   87.61 9.77 f
11 3/4 65 298.45 96.73 13.56 271.3   95.27
11 3/4 65 298.45 96.73 13.56 271.3   95.27
11 3/4 71 298.45 105.66 14.78 268.9   103.4  

K55 is a higher-grade material than J55 and is used in deeper wells. It is made from a medium-carbon steel and is more resistant to corrosion and wear.

N80 is a higher-grade material than K55 and is used in deeper wells. It is made from a high-carbon steel and is more resistant to corrosion and wear.
casing pipe china good Factory,oil tube WholesalePrice high-quality good Chinese,casing pipe Chinese high-quality factory,
L80 is a higher-grade material than N80 and is used in deeper wells. It is made from a high-carbon steel and is more resistant to corrosion and wear.

 API 5ct l80 casing Tubing Grade color Codes
Grade Grade Type Number and Color of Bands for Product a with Length ³ 1.8 m Color(s) for couplings
      Entire Coupling Band(s) b, c
1 2 3 4 5
H40 None or black band at the Manufacturer’s option None Same as for pipe
j55 tubing One bright green Bright green None
J55 Casing One bright green Bright green One white
K55 Two bright green Bright green None
N80 1 One red Red None
N80 Q One red, one bright green Red Green
R95 One brown Brown None
L80 1 One red, one brown Red One brown
L80 9Cr One red, one brown, two yellow None Two yellow
L80 13Cr One red, one brown, one yellow None One yellow
C90 1 One purple Purple None
T95 1 One silver Silver None
C110 One white, two brown White Two brown
P110 One white White None
Q125 1 One orange Orange None
a In the case of coupling material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern.
b special clearance couplings shall also have a black band.
c Seal-ring couplings shall also have a blue band.

P110 is the highest-grade material and is used in the deepest wells. It is made from a high-carbon steel and is the most resistant to corrosion and wear.

alt-6411
In conclusion, there are several different materials used for casing pipes, each with its own advantages and disadvantages. Depending on the depth of the well and the environment, the right material should be chosen to ensure the safe and efficient extraction of oil and gas.

Similar Posts