Under-balanced drilling is a world recognized advanced oil drilling technology. Snubbing unit is an equipment used in Under-balanced Drilling or work-over operation, which prevents blown-out at duration of changing drill bit and drill pipe and provides a press to drill pipe to overcome down-hole high pressure, instead of killing well.

Snubbing unit consists of upper and lower hydraulic spider assemblies, hydraulic power system and a control panel. Driven by hydraulic cylinder, the upper spider can pull up and press down drill pipes. A control panel is purposed for automatic operation. The most famous advantage of MSP/DRILEX snubbing unit lies in that no mud used for killing well so as to avoid formation pollution. Snubbing unit also can serve in work-over projects as handy work-over equipment and dramatically cut off cost.

MD-Q Snubbing Unit can hold drill pipe up and down against wellbore pressure, especially at each connection or changing of drill bits and pipes meanwhile without killing well. It can accommodate a great variety of rigs only with a simple base replacement and fit different drilling floors.

 MD-Q Snubbing Units features:
1. Modular design: mechanical system and control system.
2. Fully lubricated and protected transmission parts such as chain and pulley.

3. Simple and reliable operation.
4. An accumulator to compensate pressure loss.

5. Self-lock mechanism to ensure safety holding of drill pipe.

6. Inter-lock design to prevent against human-related improper operation.
7. Reduces formation damage
8.Eliminates the need for kill fluids

9.Environment friendly MSP/DRILEX provides a variety of snubbing unit series products for different field purposes