HDD Reamer Hole Opener

HDD Reamer Hole Opener Of Directional Drilling Tools

Features

1. Suitable for medium to medium hard formations with high compression resistance (hard shale, sand body, etc.)
2. The bit bearing is an unsealed roller bearing.
3. The edge of the shirt is welded and the carbide insert is pressed into the outer diameter of the head.
4. The surface of the cone gauge is strengthened with cemented carbide.

Advantages

1. Cutting structure
In view of the different cutting characteristics of the inserts in different parts of the cone, the cone inserts are placed in the permanent contact area, and the wedge inserts are placed in the alternating contact area, which greatly improves the drilling efficiency. The diamond insert is provided in the permanent contact area of the cone to improve the wear resistance of the cutting structure, and the insert is worn seriously in this area. Place tungsten carbide inserts on the top surface of the cone to protect the cone from abrasion.

2. Table structure
The cutting body is provided with active cutting protection inserts, so that the drill bit has good cutting protection and drilling ability.

3. Bearing structure
High-precision journal bearings. The ball locks the cone. Hard surface bearing surface. Tapered bearings with friction-reducing alloys. Improve the wear resistance and bite of the bearing. Compared with the tri-cone bit, the leg bearing of the tri-cone bit is larger, which can withstand higher drilling weight and higher reliability.

4. Hydraulic design
The small-angle waterway design increases the thickness of the shirt hem, which can effectively prevent waterway erosion. Adopt optirized waterics structure, improve the cleaning ability and ROP.

5. Product application
Suitable for sidetracking, deep wells and old wells

Product parameters

Introduction

The Fixed Diameter Hole Opener is made of tough heat treated alloy steel for maximum strength. Cutter arms, equipped with removable cutter, are hardfaced and welded on body. Cutters are available in three types: type SM for soft to medium formation, type MH for medium to hard formation and type XH for hard formation. The hole openers have three or six jet tubes with replaceable nozzles, so that jet streams quickly clean the enlarged hole.

Used in

Apply to Construction, Water Drilling, Mining, Horizontal Directional Drilling, Geothermal and Environ-mental.

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