Calibrators

CALIBRATORS AND CENTRALIZERS

Blade Calibrators are intended for diameter bore hole reaming in soft, hard and medium-hard formations, as well as for centering and improving of drill bit working conditions and for well axis direction stabilization during drilling.

The following types of calibrators are produced:

• KP – with straight blades;
• KLS – with spiral blades

Depending on formation hardness calibrators are equipped with different types of cutters and they are classified the following way:

• М – with cutters for soft formation gauging;
• ST – with cutters for medium-hard and hard formations gauging

By the method of connection to the drill string parts the following types of calibrators are produced:

• Adaptor (connecting thread type is sleeve –boring jet pipe);
• Sleeve box (connecting thread type is sleeve - sleeve).

Calibrators with spiral blades (KLS)

 

Calibrators with straight blades (KP)