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Wellhead equipment: Sucker-rod wellhead assembly and injection wellhead assembly

Categories: Oil and gas equipment

Sucker-rod wellhead assembly (ASh) and injection (ANK) tree are designed for wellhead sealing, sealing of borehole pipelines suspension and operating medium flow control.

Bypass shall be provided to avoid hook-up piping of backside with blowing line in case head.
Moreover:

  • Sucker-rod wellhead assembly may be equipped with casing-head stuffing box enabling to compensate displacement of oil-well pump rods occurring while in operation;
  • injection tree may be equipped with:
    • ball valve or isolation valves with replaceable chokes;
    • phase separators for installation and protection of manometers against unfreezing.

Technical characteristics

Symbol Code of sealing disc used in Christmas tree DN PN H L
mm inch MPa psi mm mm
Sucker-rod wellhead assembly
АШ-65х21ХЛ-Ф СУСГ-73-32ХЛ 65 29/16 21 3000 950 1530
АШ-65х21ХЛ-Ф-М1 СУСГ-73-32ХЛ-М1 65 29/16 21 3000 970 1530
АШ-65х21ХЛ-Ф-М2 СУСГ-73-32ХЛ-М2 65 29/16 21 3000 970 1530
Injection tree
АН-50х21ХЛ 50 21/16 21 3000 910 1374
АН-50х21ХЛ-М 50 21/16 21 3000 910 1550
АН-50х21ХЛ-М1 50 21/16 21 3000 910 1437
АН-50х21ХЛ-Ф-В 50 21/16 21 3000 960 1420
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