Tungsten Carbide Geothermal Drilling Drag Bit
Description of Geothermal Drilling Drag Bit
Drilling Drag Bit also named blade bits, with a Tungsten Carbide
inserts on the blades.A drilling drag bit is simply a series of
blades (usually three or four in number) which produce a shearing
action when rotated. They are comparatively inexpensive due to the
lack of movingparts and they can penetrate softer formations such as stiff clays
and mudstones very quickly.
Drill Bits Specifications
| Bit Type | Bit OD (mm) | Thread Connection | Main Material | IADC / Cutter Spec | Applicable Formation |
|---|
| PDC Drag Bit | 76 mm | 2 3/8" API REG PIN | Steel body+PDC cutter 1313/1613 | 3/4 wings | Soft/medium: clay, sand, mudstone, soft limestone |
| PDC Drag Bit | 89 mm | 2 3/8" API REG PIN | Steel body+PDC 1613 | 3/4 wings | Soft/medium rock |
| PDC Drag Bit | 110 mm | 2 7/8" API REG PIN | Steel body+PDC 1616 | 4/5 wings | Medium sandstone, limestone |
| PDC Drag Bit | 133 mm | 2 7/8" API REG PIN | Steel/Matrix body+PDC1913 | 4/6 wings | Medium/hard abrasive strata |
| PDC Drag Bit | 152 mm | 3 1/2" API REG PIN | Matrix body+PDC1916 | 5/6 wings | Medium/hard rock |
| Tricone Bit | 118 mm (4 5/8") | 2 7/8" API REG PIN | Alloy steel + TCI insert | IADC 217/317 | Medium/hard sandstone, shale |
| Tricone Bit | 133 mm | 2 7/8" API REG PIN | Alloy steel + TCI insert | IADC 437/517 | Hard limestone, dolomite |
| Tricone Bit | 152 mm | 3 1/2" API REG PIN | Alloy steel + TCI insert | IADC 517/537 | Hard granite interbeds |
| Tricone Bit | 171 mm | 3 1/2" API REG PIN | Alloy steel + TCI insert | IADC 537/617 | Very hard mixed formation |
| DTH Button Bit | 90 mm | DHD340 / BR3 shank | 42CrMo+Tungsten carbide button | 3 inch hammer bit | Hard granite, basalt, quartzite |
| DTH Button Bit | 110 mm | DHD340 / QL40 shank | 42CrMo+carbide button | 4 inch hammer bit | Hard rock |
| DTH Button Bit | 130 mm | DHD350 / QL50 shank | 42CrMo+carbide button | 5 inch hammer bit | High/hard rock |
| DTH Button Bit | 152 mm | DHD360 / QL60 shank | 42CrMo+carbide button | 6 inch hammer bit | Extra/hard bedrock |
Applications of Geothermal Drilling Drag Bit
The drag bit usually used in very soft to medium formation when the
dth hammer as the tricone bit, lose of their effectiveness.
The cleaning of the hole is realized by the injection of air or
water.
There are two forms of drag bits:
- "Step" type for soft grounds
- "Chevron" type for medium hard grounds
Item Drilling drag bit Type Chevron and Step type Wings 2, 3 and 4
wings Size: from 3 5/8”(92mm) to 12 Thread
2 3/8, 3 1/2, 4 1/2, 5 1/2, 6 5/8 API Reg. Pin
Keyword: drilling drag bit
Jinzhou Shitan Machinery Equipment Co., Ltd. Main Products:
Pneumatic Drilling Rig / Air Drilling
Rig(ST-180,ST-200,ST-260,ST-300,ST-350,ST-400,ST450,ST-450,ST-500,
ST-600,ST-800 and other Pneumatic water well drilling Rigs.),
Crawler Water Well Drilling Rig / Trailer Mounted Drilling Rig /
Water Well Drilling Rig / Hydraulic Borewell Machine / Hard Rock
Drilling Equipment / Diamond Core Drill Rig / Geological Drilling
Rig / Soil Testing Drilling Rig / Portable Water Well Drilling
Rig(ST-30,ST-50,XY-1A, XY-1B, XY-2, XY-2B,GK180, GK200, GY150,
GY200 and 30 impact drill rig, ZLJ series tunnel drilling rig and
other geological drilling machines)Crawler Track Undercarriage,
Drilling Mud Pump(BW150,BW160,BW200,BW250,BW850 series Drilling mud
pumps), Drilling Air Compressor, Water Well Drill Bits(PDC Drill
Bit, Tricone Bit, DTH Button Bit), Water Well Drill Pipe, Drilling
Rig Spare Parts( drilling rods , drilling rods joint , casing pipe,
casing coupling, core tube, core tube coupling, lifters, automatic
drop hammer, sampler, SPT tool, wrench fork, pad fork, lock joint),
Track Transporter
