API Casing

Richsen Product

HS Code : 7306.29.00
Standard : API-5CT
Usage : Major structural component oil well
Packing : Steel Belt
Product Description
API 5CT Oil Country Tubular Goods(OCTG) Casing Pipe
1) Standard: API Spec 5CT
2) API and ISO certified
3) Specification:  4-1/2'', 5", 5-1/2", 6-5/8", 7", 7-5/8", 8-5/8", 9-5/8", 13-3/8", 20"
4) Steel Grade:  J55, N80, L80, P110, Q125
5) Length: R1(6.10-7.32m), R2(8.53-9.75), R3(11.58-12.80)
6) Connection:  STC, LTC, BTC
 
7) Description
Casing is tubing that is set inside the drilled well to protect and support the wellstream.
 
8) Application
Casing is the major structural component of a well. Casing is needed to:
a. Maintain borehole stability
b. Prevent contamination of water sands
c. Isolate water from producing formations
d. Control well pressures during drilling, production, and workover operations
 
9) Casing provides locations for the installation of:
a. Blowout preventers
b. Wellhead equipment
c. Production packers
d. Production tubing

10) Parameter

CASING PIPES
STANDARD: API SPEC 5CT
Outside Diameter Specified  (mm)Nominal Weight Threads & Coupling
(Ib/ft)
Steel GradeWall Thickness  (mm) Type of Thread 
 STC  LTC  BTC 
114.30(4 1/2" )9.50H, J, K5.21YES

10.50J, K5.69YES
YES
11.60J, K, C, L, N, P6.35YESYESYES
13.50C, L, N, P7.37
YESYES
15.10P, Q8.56
YESYES
127.00(5" )11.50J, K5.59YES

13.00J, K6.43YESYESYES
15.00J, K, C, L, N, P7.52YESYESYES
18.00C, L, N, P, Q9.19
YESYES
21.40C, L, N, P, Q11.10
YESYES
23.20C, L, N, P, Q12.14
YESYES
24.10C, L, N, P, Q12.70
YESYES
139.70(5 1/2" )14.00H, J, K6.20YES

15.50J, K6.98YESYESYES
17.00J, K, C, L, N, P7.72YESYESYES
20.00C, L, N, P9.17
YESYES
23.00C, L, N, P, Q10.54
YESYES
168.28(6 5/8" )20.00H, J, K7.32YESYESYES
24.00J, K, C, L, N, P8.94YESYESYES
28.00C, L, N, P10.59
YESYES
32.00C, L, N, P, Q12.06
YESYES
177.80(7" )20.00H, J, K6.91YES

23.00J, K, C, L, N8.05YESYESYES
26.00J, K, C, L, N, P9.19YESYESYES
29.00C, L, N, P10.36
YESYES
32.00C, L, N, P11.51
YESYES
35.00C, L, N, P, Q12.65
YESYES
38.00C, L, N, P, Q13.72
YESYES
193.68(7 5/8" )24.00H7.62YES

26.40J, K, C, L, N8.33YESYESYES
29.70C, L, N, P9.52
YESYES
33.70C, L, N, P10.92
YESYES
39.00C, L, N, P, Q12.70
YESYES
42.80C, L, N, P, Q14.27
YESYES
45.30C, L, N, P, Q15.11
YESYES
47.10C, L, N, P, Q15.88
YESYES
196.85(7 3/4" )46.10C, L, N, P, Q15.11


219.08(8 5/8" )24.00J, K6.71YES

28.00H7.72YES

32.00H, J, K8.94YESYESYES
36.00J, K, C, L, N10.16YESYESYES
40.00C, L, N, P11.43
YESYES
44.00C, L, N, P12.70
YESYES
49.00C, L, N, P, Q14.15
YESYES
244.48(9 5/8" )32.30H7.92YES

36.00H, J, K8.94YESYESYES
40.00J, K, C, L, N10.03
YESYES
43.50C, L, N, P11.05
YESYES
47.00C, L, N, P, Q11.99
YESYES
53.50C, L, N, P, Q13.84
YESYES
273.05(10 3/4" )32.75H7.09YES

40.50H, J, K8.89YES
YES
45.50J, K10.16YES
YES
51.00J, K, C, L, N, P11.43YES
YES
55.50C, L, N, P12.57YES
YES
60.70P, Q13.84YES
YES
65.70P, Q15.11YES
YES
298.45(11 3/4" )42.00H8.46YES

47.00J, K, M9.53YES
YES
54.00J, K, M11.05YES
YES
60.00J, K, M, L, N, C, P, Q12.42YES
YES
339.7(13 3/8" )48.00H8.38YES

54.50J, K9.65YES
YES
61.00J, K10.92YES
YES
68.00J, K, C, L, N, P12.19YES
YES
72.00C, L, N, P, Q13.06YES
YES
406.40(16" )65.00H9.53YES

75.00J, K, M11.13YES
YES
84.00J, K, M12.57YES
YES
473.08(18 5/8" )87.50H, J, K, M11.05YESYESYES
508.00(20" )94.00H, J, K11.13YESYESYES
106.50J, K12.70YESYESYES
133.00J, K16.13YESYESYES