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API 5CT CASING PIPE DESIGN & OIL CASING DESIGN

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Specs:
Metal grades:API 5CT J55 casing , K55 casing pipe, N80 L80 and P110 oil casing pipe
OD: 1/2"-28"
WT: SCH10-XXS
Length: 5M-12M 
 
API 5CT CASING PIPE   & OIL CASING
Size Range of API 5CT Casing Pipe and Tubing:
NPS00 OD00 WT00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
INCH00 mm00 Schedule1000 Schedule2000 Schedule3000 STD00 Schedule4000 Schedule6000 XS00 Schedule8000 Schedule100 Schedule12000 Schedule14000 Schedule16000 XXS00
1/2"00 21.300 2.1100 0.00 2.4100 2.7700 2.7700 0.00 3.7300 3.7300 0.00 0.00 0.00 4.7800 7.4700
3/4"00 26.700 2.1100 0.00 2.4100 2.8700 2.8700 0.00 3.9100 3.9100 0.00 0.00 0.00 5.5600 7.8200
1"00 33.400 2.7700 0.00 2.900 3.3800 3.3800 0.00 4.5500 4.5500 0.00 0.00 0.00 6.3500 9.0900
1.1/4"00 42.200 2.7700 0.00 2.9700 3.5600 3.5600 0.00 4.8500 4.8500 0.00 0.00 0.00 6.3500 9.700
1.1/2"00 48.300 2.7700 0.00 3.1800 3.6800 3.6800 0.00 5.0800 5.0800 0.00 0.00 0.00 7.1400 10.1500
2"00 60.300 2.7700 0.00 3.1800 3.9100 3.9100 0.00 5.5400 5.5400 0.00 0.00 0.00 8.7400 11.0700
2.1/2"00 7300 3.0500 0.00 4.7800 5.1600 5.1600 0.00 7.0100 7.0100 0.00 0.00 0.00 9.5300 14.0200
3"00 88.900 3.0500 0.00 4.7800 5.4900 5.4900 0.00 7.6200 7.6200 0.00 0.00 0.00 11.1300 15.2500
3.1/2"00 101.600 3.0500 0.00 4.7800 5.7400 5.7400 0.00 8.0800 8.0800 0.00 0.00 0.00 0.00 0.00
4"00 114.300 3.0500 0.00 4.7800 6.0200 6.0200 0.00 8.5600 8.5600 0.00 11.1300 0.00 13.4900 17.1200
5"00 141.300 3.400 0.00 0.00 6.5500 6.5500 0.00 9.5300 9.5300 0.00 12.700 0.00 15.8800 19.0500
6"00 168.300 3.400 0.00 0.00 7.1100 7.1100 0.00 10.9700 10.9700 0.00 14.2700 0.00 18.2600 21.9500
8"00 219.100 3.7600 6.3500 7.0400 8.1800 8.1800 10.3100 12.700 12.700 15.0900 18.2600 20.6200 23.0100 22.2300
10"00 27300 4.1900 6.3500 7.800 9.2700 9.2700 12.700 12.700 15.0900 18.2600 21.4400 25.400 28.5800 25.400
12"00 323.800 4.5700 6.3500 8.3800 9.5300 10.3100 14.2700 12.700 17.4800 21.4400 25.400 28.5800 33.3200 25.400
14"00 355.600 6.3500 7.9200 9.5300 9.5300 11.1300 15.0900 12.700 19.0500 23.8300 27.7900 31.7500 35.7100 0.00
16"00 406.400 6.3500 7.9200 9.5300 9.5300 12.700 16.6600 12.700 21.4400 26.1900 30.9600 36.5300 40.1900 0.00
18"00 457.200 6.3500 7.9200 11.1300 9.5300 14.2700 19.0500 12.700 23.8300 39.3600 34.9300 39.6700 45.2400 0.00
20"00 50800 6.3500 9.5300 12.700 9.5300 15.0900 20.6200 12.700 26.1900 32.5400 38.100 44.4500 50.0100 0.00
22"00 558.800 6.3500 9.5300 12.700 9.5300 0.00 22.2300 12.700 28.5800 34.9300 41.2800 47.6300 53.9800 0.00
24"00 609.600 6.3500 9.5300 14.2700 9.5300 17.4800 24.6100 12.700 30.9600 38.8900 46.0200 52.3700 59.5400 0.00
26"00 660.400 7.9200 12.700 0.00 9.5300 0.00 0.00 12.700 0.00 0.00 0.00 0.00 0.00 0.00
28"00 711.200 7.9200 12.700 15.8800 9.5300 0.00 0.00 12.700 0.00 0.00 0.00 0.00
0.00

 A string of casing for a distinct application is designed around the anticipated operating situations.The operating situations (internal and external pressure, tension) produce loads around the casing, and also the casing string should be capable to withstand these loads with no failure.To perform a casing string design, the operational loads are compared to the minimum efficiency properties, as well as the parameters of your casing selected such that the minimum efficiency properties are greater than the expected loads.

The designer need to take into account: the internal operating stress against the casing’s burst rating or the connection leak resistance; the external operating stress against the casing’s collapse resistance; and, the tensile loads, typically from the casing’s own weight, against the joint strength. As pressures are normally described as radients (kPa/m or psi/ft.) and the weight from the casing string is described as some mass per unit length (kg/m or lb./ft.), the operational loads

at a provided depth could be readily determined. Alternately, actual values of the expected loads may well be known and compared against the the tabulated minimum performance properties.

The operational limits on the casing is going to be governed by one of many following:

oint power - possibly fracture or pull-out

Collapse resistance

Burst resistance or connection leak resistance

For that reason, after the restricting operational situation is determined, the most functioning depth on the casing string can be calculated depending on that situation.

All tensile, burst, and collapse ratings are based on minimum efficiency properties and do not contain any safety aspects. Safety variables should be integrated when figuring out functioning pressures and permissible tensile loads.

The setting depth calculated is based on the minimum worth determined by the collapse, burst, or joint strength limitations from the distinct mixture of size/weight/grade/connection. A collapse and burst gradient of 11.3kPa/m (0.50psi/ft.), or an equivalent mud weight of 1,000kg/m3 (9.625ppg) ¨C fresh water ¨C is assumed. In

these calculations, a Safety Factor of 1.0 is utilized for burst and collapse, plus a Safety Issue of 1.six is made use of primarily based on joint strength

.

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