API Oilfield Wellhead Equipment Casing Head /Casing Spool/Tubing Head/Drilling Spool
API Oilfield Wellhead Equipment Casing Head /Casing Spool/Tubing Head/Drilling Spool
The casing head, a component connecting the casing to the wellhead assembly of various types and sizes, is used to support the both the intermediate (protective) string and the production string ,and to seal up the annular space between the casings,thus providing a crossover connection for the installation of the bop ,the tubing head,the Christmas tree and other top wellhead components. It is also used to inject additional cement slurry or balance fluid,monitor the well sink,and execute other operating through both of the two bypass holes in the casing head body.
Connection Forms between Casing Head and Surface Casing
*Threaded bottom type
*Welded bottom type
*Slip bottom type
Product Name | Casing head |
Working Pressure | 2000 ~20000psi |
Nominal Bore | 7" ~20" |
Working Medium | oil,natural gas,mud and gas containing H2S,CO2 |
Working Temperature | -46°C~121°C(Class LU) |
Material Class | AA,BB,CC,DD,EE,FF,HH |
Specification level | PSL1-4 |
Top flange | Surface casing | Intermediate casing | Production casing |
11"-35MPa | 13 3/8" | 9 5/8" | 7" |
5 1/2" | |||
11"-70MPa | 13 3/8" | 9 5/8" | 7" |
5 1/2" | |||
11"-105MPa | 20"13 3/8" | 9 5/8" | 7" |
5 1/2" | |||
13 5/8"-35MPa | 13 3/8" | 9 5/8" | 7" |
5 1/2" | |||
13 5/8"-70MPa | 13 3/8" | 9 5/8" | 7" |
9 5/8" | |||
13 5/8"-105MPa | 20" | 13 3/8" | 7" |
5 1/2" |
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