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PDC Rock Bit
The use of high-impact diamond composite sheet and overall alloy steel structure, compared with the traditional tooth wheel drill bit mechanical drilling speed increased by more than 30%, significantly reduce the cost of drilling per unit, to provide enterprise collection services.
3 to 8 wings
Number of blade wings
19mm
Cutting tooth diameter
API Specification
Interface Standard
PDC Rock Bit Characteristics
Sustainable drilling in viscous formations
Using computational fluid dynamics simulation to optimize the nozzle layout, the bottom hole cleaning capacity is improved by 25%, effectively preventing mud bag phenomenon and ensuring continuous and efficient drilling in viscous formations.
Deep Cobalt Impact Resistant Composite
The cutting tooth adopts advanced deep decobalt process, the thermal stability reaches 750 degrees Celsius, and the wear resistance life in the abrasive formation is 40% longer than that of the conventional composite sheet.
high strength monolithic steel body structure
High-quality 42CrMo alloy steel is selected and processed by five-axis CNC precision machining. The torsional strength exceeds the industry standard by 20%, and it can withstand severe working conditions of high drilling pressure and high torque.
Enhanced Gauge Alloy Inlay
The high-density tungsten carbide alloy block is embedded in the diameter-preserving area to enhance the wear resistance by 35%, ensuring the hole diameter is regular when drilling the long well section, and avoiding the difficulty of tripping caused by diameter shrinkage.
Force balance blade layout technology
The asymmetric spiral blade design reduces lateral vibration during drilling by 30%, protects the downhole drilling assembly and extends the service life of the directional instrument and motor.
Targeted cutting angle design
The backdip angle is customized according to the specific lithology. In shale and sandstone formations, the single entry footage of pdc rock bit is increased by about 150 meters compared with similar general-purpose products.
PDC Rock Bit Detailed specifications table
| Model series | Raceway center diameter (mm) | Rated output torque (kNm) | Overturning moment (kNm) | Reduction ratio | Weight (kg) |
| SE3 | 80 | 0.8 | 1.1 | 62:1 | 15 |
| SE7 | 176 | 2.5 | 13.5 | 73:1 | 30 |
| SE9 | 229 | 6.5 | 33.9 | 61:1 | 48 |
| SE12 | 308 | 9.5 | 54.3 | 78:1 | 65 |
| SE14 | 360 | 12.0 | 72.5 | 85:1 | 75 |
| SE17 | 426 | 16.5 | 108.0 | 102:1 | 105 |
| SE21 | 536 | 25.0 | 205.0 | 125:1 | 160 |
| SE25 | 620 | 38.0 | 271.0 | 150:1 | 230 |
PDC Rock Bit Comparison Points
Compared with the traditional 3 cone bit, this pdc rock bit adopts the integrated design without moving parts, which completely eliminates the risk of bearing failure and tooth wheel loss. By breaking the rock by shearing rather than crushing, the energy transfer efficiency is increased by about 2 times in soft to medium hard formations, enabling a faster rate of penetration.
Compared with the same type of low-end PDC drill bit, we have improved the cutting tooth interface bonding technology, and the bonding strength has increased by 15%. The unique flow channel design makes the utilization rate of water horsepower higher, even under large displacement flushing, it can greatly reduce the erosion wear of the drill body itself and ensure the reliability in deep well operation.
Improve the efficiency of frequent tripping operations
In view of the problem of frequent replacement of drill bits due to short service life in deep well drilling, the footage of a single drill bit is increased by 50% through high wear-resistant composite sheet, from once a day to once every two days.
Overtake the Problem of Slow Drilling Speed in Complex Formation
In view of the mud bag problem that is easy to produce in mudstone and shale formations, the mechanical drilling rate is increased by 3 to 5 meters per hour under the same bit pressure through optimized hydraulic structure design.
Eliminate Safety Hazards of Irregular Well Diameter
In view of the shrinkage problem that is easy to occur in the drilling of long well section, the design of high-density diameter-preserving teeth is used to ensure the smooth trajectory of the well and reduce the risk of blocking for the subsequent casing operation.
PDC Rock Bit Applicable crowd
Oil and Gas Drilling Contractors
Suitable for large contractors responsible for drilling onshore or offshore oil and gas wells, especially project teams that need to shorten the construction cycle by increasing the mechanical drilling speed in shale gas or tight oil projects.
geothermal well and water well drilling company
Designed for drilling geothermal and deep water wells deeper than 1000 meters, drilling engineering teams that require long-life drill bits to reduce tripping times and thereby control fuel and labor costs.
Mine Exploration and Geological Engineering Team
For coal mine gas drainage hole or mineral resources exploration construction party, suitable for in sedimentary rock strata for core or non-core drilling, drilling verticality and hole wall quality has higher requirements of the user.
Directional crossing engineering service provider
It is suitable for non-excavation horizontal directional drilling engineering, especially in long-distance pipeline laying, which requires high guiding ability and stability of the drill bit.
Instructions for use PDC Rock Bit
Check the bit before entering the well
Before installing the pdc rock bit, be sure to clean up the sundries in the drill bit box, check whether the cutting teeth have chipped edges, and ensure that the nozzle is firmly installed and equipped with appropriate sealing rings, and buckle in strict accordance with API standard torque.
BIT DOVING OPERATION SPECIFICATION
In the process of lowering, the speed shall be controlled, and the hole section with reduced diameter shall be redrawn slowly, and it is strictly prohibited to pass under strong pressure. When 0.5 meters from the bottom hole, start the mud pump, circulate the mud and slowly rotate the drilling tool until it touches the bottom hole.
Well bottom shape and running-in
At the initial bottomhole contact, a minimum of 0.5 m of bottomhole modeling run-in shall be carried out with low weight-on-bit (30% of normal value) and low rotation speed (40-60 RPM), and then gradually increased to normal drilling parameters after a new bottomhole mode is formed.
Real-time adjustment of drilling parameters
The WOB and rotation speed are adjusted in real time according to the returned rock chips and the change of penetration rate. If the drilling speed drops suddenly or the torque fluctuates violently, the drilling pressure should be reduced immediately and the pump pressure should be checked to prevent the drill bit from being damaged in advance due to formation changes.
factory and certificate
certificate
FAQ And Contact Us
Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.
Is this pdc rock bit suitable for drilling into extremely hard granite formations?
Typically, standard PDC bits are best suited for soft to medium hard formations. For extremely hard or abrasive granite, it is recommended to choose our specially customized impregnated diamond drill bits or special tooth PDC drill bits optimized for hard formations to avoid excessive wear of the cutting teeth.
What is the difference between steel body PDC bit and matrix PDC bit?
The steel body drill bit is made of alloy steel, with thin blade and large chip removal area, which is suitable for soft formation and high drilling speed. The matrix drill bit is made of tungsten carbide powder sintering, which has stronger erosion resistance and is suitable for high abrasive formation and high displacement working conditions.
Can the nozzle of the drill bit be replaced according to the site conditions?
You can. Our drill bits are equipped with standard replaceable threaded nozzles. You can change nozzles with different apertures to optimize hydraulic parameters according to the displacement of the mud pump on site and the required water horsepower.
Can your PDC bit be repaired and reused?
If it is a steel body drill and the main structure is not damaged, only the cutting teeth wear, is of repair value. We provide professional tooth changing service. Due to the material characteristics, the matrix drill is difficult to repair and is usually used as a disposable tool.
What parameters need to be provided when ordering to match the most suitable drill bit?
To ensure optimum performance, provide borehole size, expected formation lithology description (e. g. shale, sandstone strength), type of rig used, mud pump parameters, and planned interface type.
What is the average delivery cycle of this product?
For models with regular size and standard API interface, we keep stock in the factory and can ship within 3 working days. Non-standard custom models usually require 15 to 20 days of production cycle.
Please feel free to contact us. We look forward to hearing from you.
PDC Rock Bit
The use of high-impact diamond composite sheet and overall alloy steel structure, compared with the traditional tooth wheel drill bit mechanical drilling speed increased by more than 30%, significantly reduce the cost of drilling per unit, to provide enterprise collection services.
Number of blade wings
3 to 8 wings
Cutting tooth diameter
19mm
Interface Standard
API Specification
PDC Rock Bit Characteristics
Sustainable drilling in viscous formations
Using computational fluid dynamics simulation to optimize the nozzle layout, the bottom hole cleaning capacity is improved by 25%, effectively preventing mud bag phenomenon and ensuring continuous and efficient drilling in viscous formations.
Deep Cobalt Impact Resistant Composite
The cutting tooth adopts advanced deep decobalt process, the thermal stability reaches 750 degrees Celsius, and the wear resistance life in the abrasive formation is 40% longer than that of the conventional composite sheet.
high strength monolithic steel body structure
High-quality 42CrMo alloy steel is selected and processed by five-axis CNC precision machining. The torsional strength exceeds the industry standard by 20%, and it can withstand severe working conditions of high drilling pressure and high torque.
Enhanced Gauge Alloy Inlay
The high-density tungsten carbide alloy block is embedded in the diameter-preserving area to enhance the wear resistance by 35%, ensuring the hole diameter is regular when drilling the long well section, and avoiding the difficulty of tripping caused by diameter shrinkage.
Force balance blade layout technology
The asymmetric spiral blade design reduces lateral vibration during drilling by 30%, protects the downhole drilling assembly and extends the service life of the directional instrument and motor.
Targeted cutting angle design
The backdip angle is customized according to the specific lithology. In shale and sandstone formations, the single entry footage of pdc rock bit is increased by about 150 meters compared with similar general-purpose products.
PDC Rock Bit Detailed specifications table
| Model series | Raceway center diameter (mm) | Rated output torque (kNm) | Overturning moment (kNm) | Reduction ratio | Weight (kg) |
| SE3 | 80 | 0.8 | 1.1 | 62:1 | 15 |
| SE7 | 176 | 2.5 | 13.5 | 73:1 | 30 |
| SE9 | 229 | 6.5 | 33.9 | 61:1 | 48 |
| SE12 | 308 | 9.5 | 54.3 | 78:1 | 65 |
| SE14 | 360 | 12.0 | 72.5 | 85:1 | 75 |
| SE17 | 426 | 16.5 | 108.0 | 102:1 | 105 |
| SE21 | 536 | 25.0 | 205.0 | 125:1 | 160 |
| SE25 | 620 | 38.0 | 271.0 | 150:1 | 230 |
PDC Rock Bit Comparison Points
Improve the efficiency of frequent tripping operations
In view of the problem of frequent replacement of drill bits due to short service life in deep well drilling, the footage of a single drill bit is increased by 50% through high wear-resistant composite sheet, from once a day to once every two days.Overtake the Problem of Slow Drilling Speed in Complex Formation
In view of the mud bag problem that is easy to produce in mudstone and shale formations, the mechanical drilling rate is increased by 3 to 5 meters per hour under the same bit pressure through optimized hydraulic structure design.Eliminate Safety Hazards of Irregular Well Diameter
In view of the shrinkage problem that is easy to occur in the drilling of long well section, the design of high-density diameter-preserving teeth is used to ensure the smooth trajectory of the well and reduce the risk of blocking for the subsequent casing operation.PDC Rock Bit Applicable crowd
Oil and Gas Drilling Contractors
Suitable for large contractors responsible for drilling onshore or offshore oil and gas wells, especially project teams that need to shorten the construction cycle by increasing the mechanical drilling speed in shale gas or tight oil projects.
geothermal well and water well drilling company
Designed for drilling geothermal and deep water wells deeper than 1000 meters, drilling engineering teams that require long-life drill bits to reduce tripping times and thereby control fuel and labor costs.
Mine Exploration and Geological Engineering Team
For coal mine gas drainage hole or mineral resources exploration construction party, suitable for in sedimentary rock strata for core or non-core drilling, drilling verticality and hole wall quality has higher requirements of the user.
Directional crossing engineering service provider
It is suitable for non-excavation horizontal directional drilling engineering, especially in long-distance pipeline laying, which requires high guiding ability and stability of the drill bit.
Instructions for use PDC Rock Bit
Check the bit before entering the well
Before installing the pdc rock bit, be sure to clean up the sundries in the drill bit box, check whether the cutting teeth have chipped edges, and ensure that the nozzle is firmly installed and equipped with appropriate sealing rings, and buckle in strict accordance with API standard torque.
BIT DOVING OPERATION SPECIFICATION
In the process of lowering, the speed shall be controlled, and the hole section with reduced diameter shall be redrawn slowly, and it is strictly prohibited to pass under strong pressure. When 0.5 meters from the bottom hole, start the mud pump, circulate the mud and slowly rotate the drilling tool until it touches the bottom hole.
Well bottom shape and running-in
At the initial bottomhole contact, a minimum of 0.5 m of bottomhole modeling run-in shall be carried out with low weight-on-bit (30% of normal value) and low rotation speed (40-60 RPM), and then gradually increased to normal drilling parameters after a new bottomhole mode is formed.
Real-time adjustment of drilling parameters
The WOB and rotation speed are adjusted in real time according to the returned rock chips and the change of penetration rate. If the drilling speed drops suddenly or the torque fluctuates violently, the drilling pressure should be reduced immediately and the pump pressure should be checked to prevent the drill bit from being damaged in advance due to formation changes.
Know Us and Contact Us
Get a Free Quote Today.
FAQ
Is this pdc rock bit suitable for drilling into extremely hard granite formations?
Typically, standard PDC bits are best suited for soft to medium hard formations. For extremely hard or abrasive granite, it is recommended to choose our specially customized impregnated diamond drill bits or special tooth PDC drill bits optimized for hard formations to avoid excessive wear of the cutting teeth.
What is the difference between steel body PDC bit and matrix PDC bit?
The steel body drill bit is made of alloy steel, with thin blade and large chip removal area, which is suitable for soft formation and high drilling speed. The matrix drill bit is made of tungsten carbide powder sintering, which has stronger erosion resistance and is suitable for high abrasive formation and high displacement working conditions.
Can the nozzle of the drill bit be replaced according to the site conditions?
You can. Our drill bits are equipped with standard replaceable threaded nozzles. You can change nozzles with different apertures to optimize hydraulic parameters according to the displacement of the mud pump on site and the required water horsepower.
Can your PDC bit be repaired and reused?
If it is a steel body drill and the main structure is not damaged, only the cutting teeth wear, is of repair value. We provide professional tooth changing service. Due to the material characteristics, the matrix drill is difficult to repair and is usually used as a disposable tool.
What parameters need to be provided when ordering to match the most suitable drill bit?
To ensure optimum performance, provide borehole size, expected formation lithology description (e. g. shale, sandstone strength), type of rig used, mud pump parameters, and planned interface type.
What is the average delivery cycle of this product?
For models with regular size and standard API interface, we keep stock in the factory and can ship within 3 working days. Non-standard custom models usually require 15 to 20 days of production cycle.
