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Casing Pipe

Casing pipe is most often used in underground construction projects to encase or protect utility lines from being damaged. 

Casing Pipe Introduction:

1.Specification range:OD: 114.3MM -508MM(4 1/2"--20") WT:5.21MM-22.22MM(9.5PPF--169PPF)

2. Steel Grade: H-40, J55, K-55, N-80, C-75, L-80, C-90, T-95, Q-125,P110

3. Executive standards: API 5CT

4. Testing: NDT etc related rules of API 5CT and 5B

5:Type:seamless pipe

6.Lengths:R1, R2, R3

R1 (4.88mtr-7.62mtr)
R2 (7.63mtr-10.36mtr)
R3 (10.37mtr-14.63mtr)

7.Thread connection:STC, LTC, BTC, XC and Premium connection

Casing Pipe Specification:

Sizes		OD D mm	Weight kg/m	WT t mm	Type of end
					H40	J55 K55	M65	L80 C95	N80 1,Q	C90 T95	P110	Q125
1	2
1	2	3	4	5	6	7	8	9	10	11	12	13
4-1/2 4-1/2 4-1/2 4-1/2 4-1/2	9.50 10.50 11.60 13.50 15.10	114.30 114.30 114.30 114.30 114.30	14.14 15.63 17.26 20.09 22.47	5.21 5.69 6.35 7.37 8.56	PS - - - -	PS PSB PSLB - -	PS PSB PLB PLB -	- - PLB PLB -	- - PLB PLB -	- - PLB PLB -	- - PLB PLB PLB	- - - - PLB
5 5 5 5 5 5 5	11.50 13.00 15.00 18.00 21.40 23.20 24.10	127.00 127.00 127.00 127.00 127.00 127.00 127.00	17.11 19.35 22.32 26.79 31.85 34.53 35.86	5.59 6.43 7.52 9.19 11.10 12.14 12.70	- - - - - - -	PS PSLB PSLBE - - - -	PS PSLB PLB PLB PLB - -	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - - PLBE PLB PLB PLB
5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2	14.00 15.50 17.00 20.00 23.00 26.80 29.70 32.60 35.30 38.00 40.50 43.10	139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70	20.83 23.07 25.30 29.76 34.23 39.88 44.20 48.51 52.53 56.55 60.27 64.14	6.20 6.98 7.72 9.17 10.54 12.70 14.27 15.88 17.45 19.05 20.62 22.22	PS - - - - - - - - - - -	PS PSLBE PSLBE - - - - - - - - -	PS PSLB PLB PLB PLB - - - - - - -	- - PLBE PLBE PLBE - - - - - - -	- - PLBE PLBE PLBE - - - - - - -	- - PLBE PLBE PLBE P P P P P P P	- - PLBE PLBE PLBE - - - - - - -	- - - - PLBE - - - - - - -
6-5/8 6-5/8 6-5/8 6-5/8	20.00 24.00 28.00 32.00	168.28 168.28 168.28 168.28	29.76 35.72 41.67 47.62	7.32 8.94 10.59 12.06	PS - - -	PSLB PSLBE - -	PSLB PLB PLB -	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- - - PLBE
7 7 7 7 7 7 7	17.00 20.00 23.00 26.00 29.00 32.00 35.00	177.80 177.80 177.80 177.80 177.80 177.80 177.80	25.30 29.76 34.23 38.69 43.16 47.62 52.09	5.87 6.91 8.05 9.19 10.36 11.51 12.65	PS PS - - - - -	- PS PSLBE PSLBE - - -	- PS PLB PLB PLB PLB -	- - PLBE PLBE PLBE PLBE PLBE	- - PLBE PLBE PLBE PLBE PLBE	- - PLBE PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - - - - PLBE
7 7 7 7 7 7	38.00 42.70 46.40 50.10 53.60 57.10	177.80 177.80 177.80 177.80 177.80 177.80	56.55 63.54 69.05 74.56 79.77 84.97	13.72 15.88 17.45 19.05 20.62 22.22	- - - - - -	- - - - - -	- - - - - -	PLBE - - - - -	PLBE - - - - -	PLBE P P P P P	PLBE - - - - -	PLBE - - - - -
7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8	24.00 26.40 29.70 33.70 39.00 42.80 45.30 47.10 51.20 55.30	193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68	35.72 39.29 44.20 50.15 58.04 63.69 67.41 70.09 76.19 82.30	7.62 8.33 9.52 10.92 12.70 14.27 15.11 15.88 17.45 19.05	PS - - - - - - - - -	- PSLBE - - - - - - - -	- PSLB PLB PLB - - - - - -	- PLBE PLBE PLBE PLBE PLB PLB PLB - -	- PLBE PLBE PLBE PLBE PLB PLB PLB - -	- PLBE PLBE PLBE PLBE PLB PLB PLB P P	- - PLBE PLBE PLBE PLB PLB PLB - -	- - - - PLBE PLB PLB PLB - -
7-3/4	46.10	196.85	68.60	15.11	-	-	-	P	P	P	P	P
8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8	24.00 28.00 32.00 36.00 40.00 44.00 49.00	219.08 219.08 219.08 219.08 219.08 219.08 219.08	35.72 41.67 47.62 53.57 59.53 65.48 72.92	6.71 7.72 8.94 10.16 11.43 12.70 14.15	- PS PS - - - -	PS - PSLBE PSLBE - - -	PS PS PSLB PSLB PLB - -	- - - PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - - PLBE PLBE PLBE	- - - - - PLBE
9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8	32.30 36.00 40.00 43.50 47.00 53.50 58.40 59.40 64.90 70.30 75.60	244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48	48.07 53.57 59.53 64.73 69.94 79.62 86.91 88.40 96.58 104.62 112.50	7.92 8.94 10.03 11.05 11.99 13.84 15.11 15.47 17.07 18.64 20.24	PS PS - - - - - - - - -	- PSLB PSLBE - - - - - - - -	- PSLB PSLB PLB PLB - - - - -	- - PLBE PLBE PLBE PLBE PLB - - - -	- - PLBE PLBE PLBE PLBE PLB - - - -	- - PLBE PLBE PLBE PLBE PLB P P P P	- - - PLBE PLBE PLBE PLB - - - -	- - - - PLBE PLBE PLB - - - -
10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4	32.75 40.50 45.50 51.00 55.50 60.70 65.70	273.05 273.05 273.05 273.05 273.05 273.05 273.05	48.74 60.27 67.71 75.90 82.59 90.33 97.77	7.09 8.89 10.16 11.43 12.57 13.84 15.11	PS PS - - - - -	- PSB PSBE PSBE - - -	- PSB PSB PSB PSB - -	- - - PSBE PSBE - -	- - - PSBE PSBE - -	- - - PSBE PSBE PSBE PSB	- - - PSBE PSBE PSBE PSB	- - - - - PSBE PSB
10-3/4 10-3/4 10-3/4	73.20 79.20 85.30	273.05 273.05 273.05	108.93 117.86 126.94	17.07 18.64 20.24	- - -	- - -	- - -	- - -	- - -	P P P	- - -	- - -
11-3/4 11-3/4 11-3/4 11-3/4 11-3/4 11-3/4	42.00 47.00 54.00 60.00 65.00 71.00	298.45 298.45 298.45 298.45 298.45 298.45	62.50 69.94 80.36 89.29 96.73 105.66	8.46 9.53 11.05 12.42 13.56 14.78	PS - - - - -	- PSB PSB PSB - -	- PSB PSB PSB - -	- - - PSB P P	- - - PSB P P	- - - PSB P P	- - - PSB P P	- - - PSB P P
13-3/8 13-3/8 13-3/8 13-3/8 13-3/8	48.00 54.50 61.00 68.00 72.00	339.72 339.72 339.72 339.72 339.72	71.43 81.10 90.78 101.19 107.15	8.38 9.65 10.92 12.19 13.06	PS - - - -	- PSB PSB PSB -	- PSB PSB PSB -	- - - PSB PSB	- - - PSB PSB	- - - PSB PSB	- - - PSB PSB	- - - - PSB
16 16 16 16	65.00 75.00 84.00 109.00	406.40 406.40 406.40 406.40	96.73 111.61 125.01 162.21	9.53 11.13 12.57 16.66	PS - - -	- PSB PSB P	- PSB PSB -	- - - P	- - - P	- - - -	- - - P	- - - P
18-5/8	87.50	473.08	130.21	11.05	PS	PSB	PSB	-	-	-	-	-
20 20 20	94.00 106.50 133.00	508.00 508.00 508.00	139.89 158.49 197.93	11.13 12.70 16.13	PSL - -	PSLB PSLB PSLB	PSLB PSLB -	- - -	- - -	- - -	- - -	- - -
Remarks: P——Plain end;S—Short round thread;L—Long round thread;B—Buttress thread;E—Extreme-line.

The Advantage of Casing Pipe:

• Prevent unstable upper formations from caving in and sticking the drill string or forming large caverns.

• Provides a strong upper foundation to use high-density drilling fluid to continue drilling deeper.

• Isolates different zones, that may have different pressures or fluids - known as zonal isolation, in the drilled formations from one another. 

• Seals off high pressure zones from the surface, avoiding potential for a blowout

• Prevents fluid loss into or contamination of production zones.

• Provides a smooth internal bore for installing production equipment.