Products
Snubbing Units

Snubbing Units

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The snubbing unit is wellhead device designed and developed independently by our group with the high technology and the international advanced standard. Many wellheads, for example gas well, water injection well, flowing oil well, pumping well with the high air content and electric pumping wells have different pressure, as usual, and will adopt well kill or opening flow during the progress of the work. But this kind of operation modes will cause formation contaminant, blocking the ground, polluting the environment, and serious consequences to the subsequent oil production which will reduce the production and increase the production cost. The snubbing unit solves this problem with the development of science and technology. As for the wells with pressure mentioned above, adopted the style of process under pressure rather than not kill the well and open flow at more, to make the tubular column and wellhead devices or tubular column and cable lift and press into wellhead to realize the process under pressure.

This product adopts double row dual action hydraulic cylinder lifting system and independent work platform during the process, and movement and control system. No safety problem in the process of production.


Four Systems of the Snubbing Unit

1. Hydraulic elevating motion system: used as the power resource for lifting the string.

2. Pipe column control system: used for detecting couplings and controlling the on-off status of the sealing system, in order to facilitate the passing and sealing of couplings.

3. Structure bearing system: used for supplying enough bearing power for the entire snubbing device during the loading and unloading or processing.

4. Sealing systems: used for sealing the pressure in the well.

Technical Parameters of Snubbing Unit


Item

Dynamic Pressure Seal

Hydrostatic Pressure Seal

Lifting Cylinder Trip

Max. Jacking Force

Max. Tension

Main Diameter

1

21 Mpa

35 Mpa

3.3  m

600 kN

400 kN

186 mm