Description of drill bit type of rotary drilling rig

Release time:

2019-02-28

Source:

According to different geological conditions, there are seven types of drilling tools suitable for sand, silt, clay, sub-clay and other quaternary strata: double-bottom single-door soil layer drilling bucket double-bottom double-door soil layer drilling bucket large diameter double-bottom double-door sand bucket single-layer soil drilling bucket 2, suitable for medium-stroke rock, frozen soil layer, pebble layer, strongly weathered mudstone, sandstone, shale and other hard soil layers: double-door pick sand bucket Single-door pick sand bucket 3. Drilling tools suitable for clay and silt formation: semi-closed clay drilling bucket 4. Drilling tools suitable for weathered bedrock, permafrost and gravel layer: single-head drilling

According to different geological conditions, there are seven types of drilling in the current project.

1. Drilling tools applicable to sand, silt, clay, sub-clay and other Quaternary strata:

Soil drilling bucket with double bottom and single door

Soil drilling bucket with double bottom and double door

Large diameter double bottom double door sand bucket

Single soil layer drilling bucket

2. Suitable for drilling tools for medium weathered rock, frozen soil layer, pebble layer, strongly weathered mudstone, sandstone, shale and other hard soil layers:

Double-door pick sand bucket

Single-door pick sand bucket

3. Drilling tools applicable to clay and silt strata:

Semi-closed clay drilling bucket

4. Drilling tools applicable to weathered bedrock, permafrost layer and gravel layer:

Single head rock drilling short spiral bit

Single-head cone auger rock short auger bit

Double-head rock drill short spiral bit

5. Suitable for drilling tools for soil layer above underground water level, sand layer and dense gravel layer:

Short auger bit in soil layer

Double-head soil short spiral bit

6. It is suitable for drilling tools such as bedrock stratum, boulder stratum and hard permafrost stratum with high hardness:

pick barrel drill

roller cone drill

7, suitable for soil, hard bedrock, frozen soil and other pile bottom reaming, improve the bearing capacity of cast-in-place pile drilling tools:

Enlarged bottom bit

Rotary drilling bit-the characteristics, specifications and application scope of various barrel drills

How to choose the right rotary drill bit

Rotary drilling bit-the characteristics, specifications and application scope of various barrel drills

How to choose the right rotary drill bit

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