WellHead Equipment

WellHead Equipment & X-mas tree

WellHead Equipment & X-mas tree
  • 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 1-4
  • Performance level: PR 1-2
  • Conforms to API Spec. 6A


Casing Head


  • Straight hole design, with 45° shoulder, strong load bearing
  • Side outlet type with casing hanger: line pipe thread type, double studded adapter type
  • Casing hanger : slip type and mandrel type available
  • Complete set of jackscrew assy and lock screw waring bushing to prevent casing hanger lift
  • Bottom connection: welded, threaded and slip type
Threaded bottom connection Casing Head Welded bottom connection Casing Head Slip bottom connection Casing Head
Threaded bottom connection Welded bottom connection Slip bottom connection
  • Bottom can be connected with surface casing, such as CSG, LCSG, BCSG, TM, etc.
  • Apply to casing: 20'', 13-3/8'', 9-5/8'', 7'', 5-1/2'', etc.
  • Bottom can be connected with surface casing, such as CSG, LCSG, BCSG, TM, etc.
  • Apply to casing: 20'', 13-3/8'', 9-5/8'', 7'', 5-1/2'', etc.
  • Test hole on welding annulus space
    can be used to test welding effect.
  • WD type slip connecting with surface casing
  • BT secondary seal structure
  • no need exact depth of casing running into
  • Convenient installation, safety, and reliability
  • Apply to casing: 20'', 13-3/8'', 9-5/8'', 7'', 5-1/2'', etc.

Casing Hanger

Casing HangerA Type

  • Pack off is automatically energized with casing weight
  • Seal is reliable , safety and convenience.
  • It is apply for deep wellhead service
  • Size: 5-1/2’  7’  9-5/8’



B Type

  • Casing hanger is used for connecting casing head and surface casing 
    through slip tightening casing with help of external force.
  • Installation and remove are convenience and working is reliable and safety
  • Size: 13-3/8"、20"

Casing Spool

FeturesCasing Spool

  • Secondary seal of casing spool has BT type seal structure , providing safety seal and reliability
  • It is used slip or mandrel hanger according as customer requirement

Tubing Head

Features:Tubing Head

  • Straight hole design, can install all kind of single pipe and double pipe hanger
  • Pressuer up to 20000psi
  • With 45°shoulder
  • Big capacity
  • Side outlet of threaded flange
  • VR plug threaded
  • A complete of jackscrew assy.
  • Lock screw wear bushing
  • To Prevent tubing hanger is lift
  • Bottom has BT secondary seal structure

Tubing Hanger

FeturesTubing Hanger

  • The material conforms to  API 6A and NACE standard
  • It is adopt rubber seal type
  • Installation is quickly and convenient
  • BPT threaded in tubing hanger
  • Tubing hanger with BPV threaded
  • With control pipeline of SSV