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Casing

Casing pipe lines the borehole. It is subject to axial tension by its dead weight, internal pressure by fluid purging, and external pressure by surrounding rock formations. Casing is particularly exposed to axial tension and internal pressure by the pumped oil or gas emulsion.

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Sizelb/ftODWall ThicknessThread Type
Steel Grade
in.mmin.mmH-40J-55          K-55M-65L-80          C-95N-80          1,QC-90          T-95P-110Q-125
4 1/2"9.5004.500114.300.2055.21PSPSPS----------
10.5004.500114.300.2245.69--PSBPSB----------
11.6004.500114.300.2506.35--PSLBPLBPLBPLBPLBPLB--
13.5004.500114.300.2907.37----PLBPLBPLBPLBPLB--
15.1004.500
0.3378.56------------PLBPLB
5"11.5005.000127.000.2205.59--PSPS----------
13.0005.000127.000.2536.43--PSLBPSLB----------
15.0005.000127.000.2967.52--PSLBPLBPLBPLBPLBPLB--
18.0005.000127.000.3629.19----PLBPLBPLBPLBPLBPLB
21.4005.000127.000.43711.10----PLBPLBPLBPLBPLBPLB
23.2005.000127.000.47812.14--------PLBPLBPLBPLB
24.1005.000127.000.50012.70--------PLBPLBPLBPLB
5 1/2"14.0005.500139.700.2446.20PSPSPS----------
15.5005.500139.700.2756.98--PSLBPSLB----------
17.0005.500139.700.3047.72--PSLBPLBPLBPLBPLBPLB--
20.0005.500139.700.3619.17----PLBPLBPLBPLBPLB--
23.0005.500139.700.41510.54----PLBPLBPLBPLBPLBPLB
26.8005.500139.700.50012.70----------P----
29.7005.500139.700.56214.27----------P----
32.6005.500139.700.62515.87----------P----
35.3005.500139.700.68717.45----------P----
38.0005.500139.700.75019.05----------P----
40.5005.500139.700.81220.62----------P----
43.1005.500139.700.87522.23----------P----
6 5/8"20.0006.625168.280.2887.32PSPSLBPSLB----------
24.0006.625168.280.3528.94--PSLBPLBPLBPLBPLBPLB--
28.0006.625168.280.41710.59----PLBPLBPLBPLBPLB--
32.0006.625168.280.47512.06------PLBPLBPLBPLBPLB
7"17.0007.000177.800.2315.87PS--------------
20.0007.000177.800.2726.91PSPSPS----------
23.0007.000177.800.3178.05--PSLBPLBPLBPLBPLB----
26.0007.000177.800.3629.19--PSLBPLBPLBPLBPLBPLB--
29.0007.000177.800.40810.36----PLBPLBPLBPLBPLB--
32.0007.000177.800.45311.51----PLBPLBPLBPLBPLB--
35.0007.000177.800.49812.65------PLBPLBPLBPLBPLB
38.0007.000177.800.54013.72------PLBPLBPLBPLBPLB
42.7007.000177.800.62515.87------------P--
46.0007.000177.800.68717.45------------P--
50.1007.000177.800.75019.05------------P--
53.6007.000177.800.81220.62------------P--
57.1007.000177.800.87522.23------------P--
7 5/8"24.0007.625193.680.3007.62PS--------------
26.4007.625193.680.3288.33--PSLBPSLBPLBPLBPLBPLB--
29.7007.625193.680.3759.53----PLBPLBPLBPLBPLB--
33.7007.625193.680.43010.92----PLBPLBPLBPLBPLB--
39.0007.625193.680.50012.70------PLBPLBPLBPLBPLB
42.8007.625193.680.56214.27------PLBPLBPLBPLBPLB
45.3007.625193.680.59515.11------PLBPLBPLBPLBPLB
47.1007.625193.680.62515.88------PLBPLBPLBPLBPLB
51.2007.625193.680.68717.45----------P----
55.3007.625193.680.75019.05----------P----
7 3/4"46.1008.625219.080.59515.11------PPPPP
8 5/8"24.0008.625219.080.2646.71--PSPS----------
28.0008.625219.080.3047.72PS--PS----------
32.0008.625219.080.3528.94PSPSLBPSLB----------
36.0008.625219.080.40010.16--PSLBPSLBPLBPLBPLBPLB--
40.0008.625219.080.45011.43----PLBPLBPLBPLBPLB--
44.0008.625219.080.50012.70----PLBPLBPLBPLBPLB--
49.0009.625244.480.55715.15------PLBPLBPLBPLBPLB
9 5/8"32.3009.625244.480.3127.92----------------
36.0009.625244.480.3528.94--PSLBPSLB----------
40.0009.625244.480.39510.03PSPSLBPSLBPLBPLBPLB----
43.5009.625244.480.43511.05PS--PLBPLBPLBPLBPLB 
47.0009.625244.480.47211.99----PLBPLBPLBPLBPLBPLB
53.5009.625244.480.54513.84------PLBPLBPLBPLBPLB
58.4009.625244.480.59515.11------PLBPLBPLBPLBPLB
59.4009.625244.480.60915.47--------P------
64.9009.625244.480.67217.07--------P------
70.3009.625244.480.73418.64--------P------
75.6009.625244.480.79720.24--------P------
10 3/4"32.75010.750273.050.2797.09PS--------------
40.50010.750273.050.3508.89PSPSBPSB----------
45.50010.750273.050.40010.16--PSBPSB----------
51.00010.750273.050.45011.43--PSBPSBPSBPSBPSBPSB--
55.50010.750273.050.49512.57----PSBPSBPSBPSBPSB--
60.70010.750273.050.54513.84----------PSBPSBPSB
65.70010.750273.050.59515.11----------PSBPSBPSB
73.20010.750273.050.67217.07----------P----
79.20010.750273.050.73418.64----------P----
85.30010.750273.050.79720.24----------P----
11 3/4"42.00011.750298.450.3338.46PS--------------
47.00011.750298.450.3759.53--PSBPSB----------
54.00011.750298.450.43511.05--PSBPSB----------
60.00011.750298.450.48912.42--PSBPSBPSBPSBPSBPSBPSB
65.00011.750298.450.53413.56------PPPPP
71.00011.750298.450.58214.78------PPPPP
13 3/8"48.00013.375339.730.3308.38PS--------------
54.50013.375339.730.3809.65--PSBPSB----------
61.00013.375339.730.43010.92--PSBPSB----------
68.00013.375339.730.48012.19--PSBPSBPSBPSBPSBPSB--
72.00013.375339.730.51413.06------PSBPSBPSBPSBPSB
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