● Fix drilling wellhead, connect wellhead casing string, seal and control the annular of casing, suspend tubing, control wellhead pressure and adjust flow rate, also induce oil into outlet pipeline, shut off oil well when necessary, and apply to acid fracturing, water injection and test service
● Consist of casing head, tubing head and Christmas tree
● Apply to all kinds of casing, tubing programs and connection forms
● Can be equipped with (pneumatic) hydraulic safety valve
● Working pressure: 2000Psi-20000Psi
● Working medium: oil, natural gas, mud
● Working temperature:-46℃ C-121 ℃ (Class LU)
● Material class: AA,BB,CC,DD,EE,FF
●用于固定鉆進井，連接井口套管柱，密封和控制管間的環形空間，控制井口的壓力和調節油（氣）的流量，并能把油（氣）誘導到井口的油管去，必要時還可以用來關閉井口，也可用于酸化壓裂、試油注水，測試等特殊作業
●由套管頭、套管四通、油管頭和采油（氣）樹部分組成
●適用于各種套管、油管程序及各種連接方式
●可配置各種規格的液（氣）安全閥
●工作壓力：2000Psi~20000Psi
●工作介質：石油、天然氣、泥漿
●工作溫度：-46℃~121℃（L.U級）
●材料級別：AA、BB、CC、DD、EE、FF
