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Hole opener & Reamer

Hole Opener

Fixed Diameter Hole Opener is used for enlarging the surface hole which drilled by cone bit in advance, or connected

above the cone bit. It applies to Onshore and offshore oilfeld.

Cutters type:

"SM": Soft to medium formation;

"MH": Medium to hard formation;

"XH": Hard formation.

Roller reamer
Roller reamer is designed for various reaming operation. It can be used in hard formation or abrasive formation, in order to keep the standard hole size. When the bit size is under the standard size, it can ream the well bottom size to standard hole size. Whether drilling the vertical well or directional well, it can make the bit or casing come into the normal hole size. The features of roller reamer are small frictional resistance with well wall, strong abrasive resistance and long life.

Hardfacing of roller:

Type T:  Soft formation

Type F:  Medium hard formation

Type B:  Hard formation

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