Hydraulic Bumper Sub type MG


APPLICATION

    The is designed to press (both up and down) during workover in oil, gas and exploratory wells caused by locking of drilling pipes, casing, tubing, string elements, layer tester, calibrator, bits, fishing tools, mills, ets.


CONSTRUCTION

    The Hydraulic Bumper Sub consists of a mandrel, rod, top sub, piston and set of sealing elements. The upper part of the mandrel has a special connecting thread to join the top sub with the box tool-joint connecting thread and the rod shank connected to the bottom part of the mandrel. The piston is installed between the rod and the shank. The mandrel consists of three parts connected to each other by special threads. The inner surface of the mandrel bottom part has slots interacting with rod slots that provides torque. The middle part of the mandrel body has washing grooves for fluid circulation. The bottom part of the mandrel body has a pin type connecting thread. The hydraulic bumper sub is filled with special oil through plugs. All connections of the bumper sub have O-rings. The mandrel body is provided with filling holes c/w special threaded fill plugs.


When ordering, please specify:

  • Assembly name and nominal size;
  • Version (LH or RH);
  • Type of connecting thread if other than stated in the table;

    • It is recommended to order:

      • Sealing Elements - 4 sets;
      • Piston - 2 pcs;
      • Piston Rings - 8 pcs. (2 sets);
      • Upper Fill Plug - 2 pcs. (2 sets);
      • Bottom Fill Plug - 2 pcs. (2 sets).


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