Casing Head Series:
The Casing Head Series are used to fasten the wellhead of drilling intervals, to connect wellhead casing string,
to support the gravity of intermediate casing and oil-string casing, to seal the annular space between the pipe layers, to provide filtering connections for the installation of BOP, tubing head, and X-tree. In addition, it is also available to perform squeeze slurry, monitor and fill equilibrium liquid and other construction operations through two lateral holes on the casing head body.
Technical parameters:
Nominal Pressure: 2,000Psi ~ 15,000 Psi (14 ~ 105Mpa)
Nominal Diameter: 41/16"~20" (114.3 ~ 508mm)
Material Grade:AA- FF Grade
Specification Level: P S L 1 ~ 4
Performance Level: PR 1 ~ 2
Rated Temperature: L·U (-46ºC ~ 121ºC)
Working Medium: petroleum, natural gas, slurry, containing, H2S and CO2.
Bottom Connection Type of Casing Head:
The lower connections of the casing head adopt the casing circular threaded connection in compliance with API
standard or casing buttress casing threaded connection in compliance with API standard. In addition, it is also
available for socket-type casing connection and slip-type connection, as well as optional installed and welded
bearing chassis.
Slip-type Bottom Connection Casing Head: The use of upper locking screws enables the slip to tightly hold the surface casing, and is designed with the BT-type casing ring, which is securely connected, convenient and reliable sealing.
Welded-type Bottom Connection Casing Head: The casing head and surface casing are welded on the site, suitable for a variety of specifications of casing.
Threaded-type Bottom Connection Casing Head: Can be used to process variety of specifications of casing threads, connected with the surface casing through dual-male short pieces, quick and easy for installation.
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