Wellhead & Christmas Tree

All our designs are in compliance to API 6A and API 16A in terms of product specification levels and performance requirements.

Wellhead - Exploration / Apraisal

Wellhead & Christmas Tree – Development

Christmas Tree Selection

Wellhead Component

  • Type Specification
  • General Specification
  • Temperature Classes
  • Material Class
  • Specification Type Conventional Flange Type Conventional Clamp Type Compact Clamp Type Splitter 2 in 1 Splitter 3 in 1
    Pressure Rating 2K - 20K 2K-15K 2K - 15K 2K-10K 2K -5K
    Temperature Rating -0F - +350F -18C to +180C -0F - +350F -18C to +180C -0F - +350F -18C to +180C -0F - +350F -18C to +180C -0F - +350F -29C to +345C
    Casing Size 36" - 7" 36" - 7" 36" - 7" 36" - 7" 36" - 7"
    Tubing Size 5" - 2-1/2" 5" - 2-1/2" 5" - 2-1/2" 5" - 2-1/2" 5" - 2-1/2"
    Service Type General / Sour General / Sour General / Sour General / Sour General / Sour
    Tubing Hanger Seal Metal to Metal Metal to Metal Metal to Metal Metal to Metal Metal to Metal
    Completion Single / Dual Single / Dual Single / Dual Single / Dual Single / Dual
    Slip Hanger Type Mechanical Set Mechanical Set Mechanical Set Mechanical Set Mechanical Set
  • Product Specification Level PSL 1 - PSL 4
    Material Class (Trim) AA - HH
    Working Pressure

    Wellhead : 3,000 - 15,000 psi
    X'mas Tree : 3,000 - 5,000 psi
    Operating Temperature K - V
    Connection Type

    Top : Quick Connect / Clamp Hub
    Bottom : Quick Connect / Slip Lock / Clamp Hub
  • API Classification Operating Temperature Operating Temperature
    Min (deg F) Max Min (deg F) Max
    K -75 180 -60 82
    L -50 180 -46 82
    N -50 140 -46 60
    P -20 180 -29 82
    S 0 140 -18 60
    T 0 180 -18 82
    U 0 250 -18 121
    V 35 250 2 121
  • Operating Temperature Body, Bonnet, End & Outlet Connections Pressure Controlling Parts, Stems & Mandrel Hangers
    Min (deg F) Max
    AA - General Service Carbon or Low Alloy Steel Carbon or Low Alloy Steel
    BB - General Service Carbon or Low Alloy Steel Stainless Steel
    CC - General Service Stainless Steel Stainless Steel
    DD - Sour Servicea Carbon or Low Alloy Steelb Carbon or Low Alloy Steelb
    EE - Sour Servicea Carbon or Low Alloy Steelb Stainless Steelb
    FF - Sour Servicea Stainless Steelb Stainless Steelb
    HH - Sour Servicea Corrosion Resistant Alloybcd Corrosion Resistant Alloybcd

    a - As defined by ISO 15156 (all parts) (NACE MR0175; see Clause 2)

    b - In accordance with ISO 15156 (all part) (NACE MR0175; see Clause 2)

    c - CRA required on retained fluid-wetted surface only; CRA cladding of low-alloy or stainless steel is permitted

    d - CRA as defined in Clause 3; ISO 15156 (all parts) (NACE MR0175; see Clause 2) definition of CRA does not apply.