国产精品久久九九久亚洲无码_亚洲精品人成无码毛片_亚洲色无码专区在线观_国产高清在线看av片_色网天天影视 超碰最激烈_99久久久无码国产精精品品不卡_惠民福利午夜理理伦a级毛片国语_日韩美女欧美精品_亚洲无码在线观看视频_东京热无码中文字幕视频

Fix drilled wellhead, connect wellhead casing string, seal and control the annular of casing, suspend tubing, control wellhead pressure and adjust flow rate, also include 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.

?Feature reliable running, simple and convenient operating and repairing.

?Can be equipped with (pneumatic) hydraulic safety valve.

?Working pressure: 2000PSI～20000PSI

?Working medium: oil, natural gas, mud ,including H2S,CO2

?Working temperature: -46°C～121°C（Class LU）

?Material class: AA、BB、CC、DD、EE、FF

?Specification level: PSL 1～3G

?Performance level: PR 1～2