瓦克克瓦拉公司的MH顶驱
DDM/PTD Features:
Improves well conditions
The MH Top Drives can easily be connected to the drill string
while tripping. Circulation and rotation can start immediately to
clean the well and thereby prevent stuck pipe.
Efficient directional drilling
Accuracy of the deviation is easier maintained, as the direction
only has to be adjusted every 90 ft (27.4 m).
Time-saving
The MH Top Drive reduces the number of connections by 2/3
while drilling with 90 ft stands (27.4 m).
Core recovering
The MH Top Drive increases the possibility of recovering a full
core barrel up to 90 ft (27.4 m) without intermediate connections.
Safety
The MH Top Drive eliminates the hazard of rotating equipment
on the drill floor level. By reducing the number of connections
to one third, safety is improved.