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Drilling rock-breaking tool

 

Diamond impregnated crowns for single core drilling

Impregnated diamond crowns are designed for drilling in a wide range of hard and very hard rocks of the VII – XII categories of drillability: from monolithic to fractured and fragmented, from low-abrasive to very abrasive, of various granularity and density.

An example of the designation of a diamond impregnated crown with a W-shaped end profile:

Diamond impregnated crowns for single core drilling

11И3.66 – 76

1 - crown for single core drilling

1 - number of the crown end profile

И - impregnated

3 - conditional hardness of the matrix
6 - number of crown sectors
6 - the height of the impregnated crown layer, mm
76 - outer diameter of the diamond crown, mm

Crown designation Outer diameter, mm Inner diameter, mm Number of sectors, pcs Matrix height, mm
11И2

Medium - abrasive rocks

Diamond crown for a single-column drilling projectile. Designed for drilling on very hard, non-abrasive fine-grained and monolithic rocks 8-9 categories by drillability.

59 42 4 6
11И3

Abrasive rocks

Diamond crown for a single-column drilling projectile. Designed for drilling on hard, moderately abrasive, fine-grained and medium-grained, monolithic and fractured rocks 6-7 categories by drillability.

76 58 6 6
11И4

Medium - abrasive rocks

Diamond crown for a single-column drilling projectile. Designed for drilling on medium hardness, moderately abrasive, medium-grained and coarse-grained, monolithic, fractured rocks 4-5 categories by drillability.

93 73 8 6
  112 92 10 6
  132 112 10 6

Crowns with other characteristics are made by order of the consumer, which you can also buy.


Diamond impregnated crowns for double column sets and SSC

They are designed for drilling in a wide range of hard rocks of the III – XI categories of drillability: from monolithic to fractured and fragmented, from low-abrasive to very abrasive, of various granularity and density.

An example of the designation of a diamond impregnated crown with a W-shaped end profile:

Diamond impregnated crowns for double column sets and SSC

NQ 8-9/21И2.812

NQ - conditional size of the diamond crown

8-9 - drillability categories

2 - crown for double column sets and SSC

1 - number of the crown end profile

И - impregnated

2 - conditional hardness of the matrix
8 - number of crown sectors
12 - the height of the impregnated crown layer, mm

Crown designation Drillability category Outer diameter, mm Inner diameter, mm Number of sectors, pcs Matrix height, mm
21И1

Low - abrasive rocks

Diamond crown for drilling double core. Designed for drilling on extremely hard, non-abrasive, very finely grained and monolithic rocks 10-11 categories by drillability.

10-11 59,6 (BQ) 36,4 6 12
21И2

Medium - abrasive rocks

Diamond crown for drilling double core. Designed for drilling on very hard, non-abrasive fine-grained and monolithic rocks 8-9 categories by drillability.

8-9        
21И3

Abrasive rocks

Diamond crown for drilling double core. Designed for drilling on hard, moderately abrasive, fine-grained and medium-grained, monolithic and fractured rocks 6-7 categories by drillability.

6-7 75,3 (NQ) 47,6 8 12
21И4

Medium - abrasive rocks

Diamond crown for drilling double core. Designed for drilling on medium hardness, moderately abrasive, medium-grained and coarse-grained, monolithic, fractured rocks 4-5 categories by drillability.

4-5        
21И5

Sandy loam

Diamond crown for drilling double core. Designed for drilling on medium softness, abrasive, medium-grained and coarse-grained, monolithic and fractured rocks 3 categories of drillability.

3 95,6 (HQ) 63,5 12 12

Crowns with other characteristics are made by order of the consumer, the price is negotiated individually.


Diamond expanders

Diamond expanders are designed for single core sets, TDN, SSK and are used for calibration of well walls in rocks of categories VII - XII in terms of drillability, various degrees of abrasiveness and fracturing.

Example of the designation of diamond expanders:

Diamond expanders

РСАК-HQ

Р - expander
С - sector
А - diamond
К - sector slope
HQ - nominal outer diameter, mm

Expander designation Outer diameter, mm Number of sectors, pcs
РСАК-BQ 60,0 6
РСАК-NQ 75,7 8
РСАК-HQ 96,1 10
РСАК-PQ 122,6 14

At the request of the consumer, it is possible to produce expanders with other characteristics.


Diamond shoes

Diamond shoes are designed for casing planting in complicated geological conditions, are used in a wide range of rocks of VII - XI categories of drillability.

Example of the designation of diamond shoes:

Diamond shoes

31И3.126–HWT

3 - diamond shoe

1 - number of the crown end profile

И - impregnated

3 - conditional hardness of the matrix
12 - number of crown sectors
6 - the height of the impregnated crown layer, mm
HWT - conditional size of the diamond shoe

Shoe designation Outer diameter, mm Inner diameter, mm Number of sectors, pcs Matrix height, mm
31И4.86-BW 31И4.86-BWT 75,6 60,2 8 6
31И4.86-NW 31И4.86-NWT 92 76,3 8 6
31И4.126-HW 31И4.126-HWT 117,5 100,5 12 6
31И4.166-PW 31И4.166-PWT 143,5 123,8 16 6

Diamond shoes with other characteristics are made by order of the consumer.


Matrices

For the manufacture of diamond impregnated drill bits, 6 matrices are used, which differ in wear resistance (hardness). They are indicated by numbers from 1 to 6.

With an increase in the number of the matrix, its wear resistance (hardness) increases.

Matrix No. 1 is the softest and is designed for drilling on extremely hard, non-abrasive, very fine-grained and monolithic rocks.

№ matrices Characteristics of the breed Type of breed
1 Extremely hard, Non-abrasive, Very fine-grained, Monolithic Siliceous Slate, Jasperite, Vitreous Quartz, Rhyolite
2 Very Hard, Abrasive, Fine-Grained, Monolithic Diorite, Granite, Gneiss, Quartzite
3 Moderately hard, abrasive, Fine-grained and medium-grained, Monolithic and fractured Granite, Pegmatite, Quartz, Obsidian, Scarns
4 Medium hardness, Moderately abrasive, Medium-grained and coarse-grained, Monolithic and fractured Basalt, Diorite, Diabase, Gabbro
5 Medium-soft abrasive, Medium-grained and coarse-grained, Monolithic and fractured Dolomite, Weathered Granite, Serpentine, Peridotite
6 Very soft, Very abrasive, Coarse-grained, Highly fractured Conglomerates, Hard Shales, Limestone, Sandstone