It is mainly used in the ground blowout preventer system of well logging and testing, serving as the pressure buffer and transition area of tool going through wellhead. When using, the initial state of blowout preventer tube is horizontally placed. After operator connects tool string, zero overflow blowout preventer head and top sheeve, power source is provided by electric hydraulic pump to realize the lifting of blowout preventer tube. Meanwhile, it utilizes hydraulic pressure to push piston to compact packing to achieve test technology of wellhead zero overflow. After using this system, crane and working on higher levels can be given up. It is simple and safe with low test cost.

Features

• Power source is provided by hydraulic pump.
  

• BOP head has good sealing effect, lifting and dropping of cable are smooth, it can achieve test technology of zero overflow when testing.

• Top/lower sheave posses sufficient tensile strength and both have wire jumper resistant and position adjustment function.

• It has simple structure, simple carrying and operation, high safety and low cost.

• It has superior advantages in the small space, especially in the worse environment of the logging and testing operation.

• It has a better market prospect and good economic benefits.

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