Casing Head

Casing Head

Product Description

Casing head is installed on the top of casing stem. It hangs all the casing pipes except surface casing pipe. It is an important unit to connect casing pipe and blowout preventer with oil/gas wellhead device. According to types, hanging casing pipes are divided into: Threaded casing head and slip casing head; According to layers, they are divided into: One-step casing head, two-step casing head, and three-step casing. Head etc.
working pressure
 
layer order of hanging casing
 
way of hanging casing
 
casing head
 
connection way
 
side port flange (psi)
 
perpendicular bore diameter of cross
 
bottom (psi)
 
top (psi)
 
one-siep casing head : 9 5/8 ×7-35 , 9 5/8 ×7-70
 
5000psi
 
9 5/8 ×7
 
threaded     slipped
 
9 5/8
 
9 5/8 threaded
 
11-5000
 
29/16-5000
 
230mm
 
9 5/8 slip
 
10000psi
 
9 5/8 welding
 
11-10000
 
29/16-10000
 
two-step casing head: 13 3/8 ×9 5/8 ×7-35 , 13 3/8 ×9 5/8 ×7-70
 
5000psi
 
13 3/8 ×9 5/8 ×7
 
threaded     slipped
 
13 3/8
 
13 3/8 threaded
 
13 5/8 -3000
 
2 9/16 -5000
 
317mm
 
13 3/8   slip
 
13 3/8   welding
 
9 5/8
 
13 3/8 threaded
 
11-5000
 
2 9/16 -10000
 
230mm
 
10000psi
 
13 3/8 ×9 5/8 ×7
 
threaded     slipped
 
13 3/8
 
13 3/8 threaded
 
13 5/8 -5000
 
2 9/16 -5000
 
317mm
 
13 3/8   slip
 
13 3/8   welding
 
9 5/8
 
13 5/8 -3000
 
11-10000
 
2 9/16 -10000
 
230mm
 
three-step casing head :20×3 3/8 ×9 5/8 ×7-70 , 20×3 3/8 ×9 5/8 ×7-105
 
10000psi
 
20×3 3/8 ×9 5/8 ×7
 
threaded     slipped
 
20
 
20 threaded
 
21 1/4 -2000
 
2 9/16 -5000
 
486mm
 
20 slip
 
20 welding
 
13 3/8
 
21 5/8 -2000
 
13 5/8 -5000
 
2 9/16 -5000
 
317mm
 
9 5/8
 
13 5/8 -5000
 
11-10000
 
2 9/16 -10000
 
230mm
 
15000psi
 
20×3 3/8 ×9 5/8 ×7
 
threaded     slipped
 
20
 
20 threaded
 
21 1/4 -2000
 
2 9/16 -5000
 
486mm
 
20 slip
 
20 welding
 
13 3/8
 
21 1/4 -2000
 
13 5/8 -5000
 
2 9/16 -5000
 
317mm
 
9 5/8
 
13 5/8 -10000
 
11-15000
 
2 9/16 -10000
 
230mm
 

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