PDC Matrix Body Flat Type With Top Head 76 99 112 120 133mm
Sintered Bit Drill Bit With Nw Pin
PDC Drill Bit Feature:
1. Suitable for soft, medium and hard formations.
2. Super strong material promotes gauge wear resistance to provide
long bit life.
3. PDC cutter can improve the life and shield the risk of complex
formation drill not passed.
4. Drilling dynamic equilibrium design and hydraulic balance design
make the drilling process more smooth
Product main moden and size:
1. General specification:75#,90#,113#,133#,153#,171#,219#
2. Enhanced specification:75#,90#,113#,133#,153#,171#(Dual water
ball),171#(Three water ball)
3. Special type specification:65#,153#(4 wing),3 wing(It can be
directly connected with the drill pipe)Specifications are
32#,42#,50#,60#,76#,89#(Routine for 50#)
4. Composite sheet reinforced:There are mainly
1304,1308,1313,1613,1906,1908,Routine for1304,Enhanced1308
Specifications are75#,91#,110#,130#,150#,170#.
In general, conventional 1304 is the most common, and the dosage is
also the largest. According to the formation conditions, it can be
matched with the geological sheet/petroleum sheet to achieve
reasonable use.
Applicable stratum: clay stratum, sand stratum, gravel stratum and
weathered stratum.
Application
Borehole drilling, Civil Infrastructure, civil engineering, and
infrastructure, for rock core drilling, Soil Testing and sampling,
geophysical survey companies, Pile foundation drilling, bridge
drilling, wind power generation, large-mouth engineering drilling,
oil field, metallurgy, mining, geological mineral exploration,
water conservancy and hydropower construction, coal mine, mine
tunnel drilling, grouting reinforcement engineering, highway,
subway, high-speed rail, concrete core sampling, etc, Coring
exploration, drilling.
Strata Grading Instructions
Grade 1 loose soil: secondary loess, secondary laterite, soft sandy
soil without gravel and breccia, diatomaceous earth
Grade 2 loose rocks: loess, laterite, peat, clay, sand, kaolin
Grade 3 soft rocks: strongly weathered shale, slate, dry pasture
and schist, slightly cemented sand
Grade 4 slightly softer rocks: shale, sandy shale, oil shale,
carbonaceous shale, calcareous shale, sand-shale interbedded,
argillaceous limestone
Grade 5 slightly harder rock: gravel and gravel layers, collapsible
layers, argillaceous slate, sericite chlorite slate, schist,
limestone
Grade 6-7 medium hard rock: chlorite, mica, slate, dry pasture,
schist, silicified limestone, calcite
Grade 8-9 hard rock: silicified mica, gneiss, basalt, diabase,
pyroxenite, quartz Anshan porphyry
Grade 10-11 hard rock: granite, granodiorite, gneiss, rhyolite,
quartzite
Level 12 Hardest Rocks: Quartzite, Jasperite, Cape Shale, Corundum,
Quartz, Flint, Jasper
| Rock grouping and recommended use of the bit table |
| Grade | name | Represents | Drilling speed | Suggested drill bit |
| 1 | Loose soil | redeposited loess,lateritite,Soft sandy soil free of gravel and
breccia,diatomite | 15/H | Pineapple bit,slice,plain film,Scraper coreless bit |
| 2 | Loose soil | loess,red clay,cumulosol,Sand soil,Kaolin class | 8/H | Pineapple bit,denticle,slice,Triangle,Bread |
| 3 | Soft rock | Strongly weathered shale,Slate,schist,Slightly cemented sand layer | 6/H | Scraper coreless bit,Concave three wings,slice,Breadslice |
| 4 | A little soft rock | Slate,arenaceous shale,carbonaceous shale,argillaceous
marl,calcareous shale | 5/H | scraper,Recessed coreless
bit,slice,Bread,Breadslice,Triangle,Electroplated diamond |
| 5 | A little hard rock | Rubble and gravel layer collapse
layer,Slate,limestone,Marble,schist | 3/H | Concave three wings,Bread,A helmet piece,Electroplated diamond |
| 6-7 | Medium hardness | Slate,schist,Silicified limestone,Calcite | 2/H | Bread,A helmet piece,Electroplated diamond,Hot pressed
diamond,Innovative no.7 fast bit |
| 6-7 | Medium hardness | Slate,schist,Silicified limestone,Calcite | 2/H | Bread,A helmet piece,Electroplated diamond,Hot pressed
diamond,Innovative no.7 fast bit |
| 8-9 | Hard layer | Basalt,Quartz anshan porphyry,Fai green rock | 1.2/H | A helmet piece,Low-alcohol electroplating,Low thermal,Innovative
no.7 fast bit |
| 10-11 | Super Hard rock | Granite,granodiorite,gneiss,rhyolite,aposandstone | 0.8/H | Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit |
| 12 | Super Hard rock | aposandstone,jasperite,hornberg,corundolite | 0.3/H | Low-alcohol electroplating,Low thermal,Innovative no.7 fast bit |
