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Fixed Cutter Drill Bits Support Customization
This Fixed Cutter Drill Bits adopts the design of deep de-cobalt PDC cutting teeth and force balance blade, which increases the mechanical drilling speed by more than 30% in shale and hard rock formations, prolongs the footage life of a single drill bit twice, significantly reduces the drilling cost per unit footage, and supports batch ordering.
Steel body or carcass optional
Body Material
Three to eight blade wing design
Blade Design
Thirteen mm
Cutting Teeth Size
Fixed Cutter Drill Bits Characteristics
Improve wear resistance in hard formations
Using high-performance cutting teeth with thermal stability up to 750 degrees Celsius, combined with the interface non-planar design, the wear resistance of the cutting teeth in the hard formation is increased by 40%, and the diamond layer is effectively resisted by frictional heat.
Improve the removal efficiency of rock debris to prevent bit mud
After CFD simulation and optimization of nozzle layout and flow channel design, the removal efficiency of rock cuttings at the bottom of the well is improved by 35%, effectively preventing the mud bag of the drill bit when drilling in high viscous mudstone formation, and ensuring that the cutting teeth always contact fresh rock.
Active damping structure to reduce underground stick-slip vibration
The cutting tooth arrangement optimized by computer simulation makes the unbalanced force of the drill bit less than 4%, greatly reduces the underground stick-slip vibration, protects the underground measuring instrument and improves the slope stability of directional drilling.
Shock-resistant defense Absorbs shock loads
The anti-impact impregnated insert or secondary cutting tooth is arranged behind the main cutting tooth, which can absorb 80% of the impact load generated when drilling gravel layer or soft and hard staggered formation, and prevent the main cutting tooth from chipping damage.
Rules for ensuring smooth borehole trajectory
The diameter-preserving area is inlaid with high-density thermally stable polycrystalline diamond, and the diameter-preserving length tolerance is strictly controlled within 0.5mm to ensure smooth and regular wellbore trajectory and reduce the risk of resistance in subsequent casing operation.
Integrated steel body CNC machining
For the steel body model, the five-axis linkage numerical control center is integrally formed, and the high-strength alloy steel material is selected. The torsional strength of the body is increased by 25%, and it can withstand the extreme mechanical load during deep well drilling with high torque.
Fixed Cutter Drill Bits Technical Specifications Table
| Parameter Items | Detailed specifications |
| Product Name | Fixed Cutter Drill Bits |
| IADC code range | M123 to M433 (carcass) / S123 to S433 (steel body) |
| Applicable size range | 3 1/2 inches to 26 inches (88.9 mm to 660.4 mm) |
| Blade material | Tungsten carbide matrix body or high-strength alloy steel body |
| Cutting tooth dimensions | Available in 19mm, 16mm, 13mm, 10mm, and 8mm. |
| Number of blades | 3 to 8 wings (customized according to formation hardness and displacement) |
| Nozzle type | Threaded fixed carbide nozzle (with interchangeable orifice diameters) |
| Connector thread standard | Compliant with API Spec 7-1 standards (NC31, NC38, NC46, NC50, 6-5/8 REG) |
| Diameter-keeping materials | Heat-stabilized polycrystalline diamondand tungsten carbide cemented carbide blocks |
| Recommended engine speed | 60 rpm to 250 rpm (up to 300+ rpm with downhole power drilling tools) |
Fixed Cutter Drill Bits Comparison Points
This Fixed Cutter Drill Bits uses a shear cutting mechanism, which is more efficient in rock breaking in plastic shale and medium hard formations than the crushing cutting of roller cone bits. Its integral structure eliminates 1 of the weak links of the cone bit bearing system, can withstand higher speeds, and is very suitable for high-speed drilling with downhole power drilling tools (screw or turbine). In addition, the product exhibits excellent tool face control in directional and horizontal well operations through optimized cutting tooth chamfer design and lateral cutting ability. Compared with similar ordinary PDC bits, its special anti-rotation design makes the trajectory smoother when drilling in long horizontal sections, greatly reducing the friction torque problem caused by borehole distortion.
Overcome the bottleneck of low mechanical drilling speed in deep shale layer
Using sharp PDC cutting teeth to produce efficient shearing action, instead of traditional inefficient extrusion crushing, the average mechanical drilling speed in shale formation will be increased by more than three times, greatly shortening the single well construction cycle.
Eliminate the risk of falling off downhole moving parts
The integrated fixed cutting structure design with no moving parts completely abandons the easily damaged bearing system, and fundamentally eliminates the complex accidents such as underground fishing caused by the failure of the bearing.
Solve the problem of frequent tripping in long well sections
With the super wear resistance and thermal stability of the composite sheet, a single drill bit can complete several kilometers of footage, realizing the completion of the entire well section in 1 trips, effectively reducing the number of trips, and reducing the daily cost and labor cost of the drilling rig.
Fixed Cutter Drill Bits for Crowd
Oil and Gas Deep Well Drilling Engineer
It is suitable for engineers responsible for deep reservoir development, especially for shale oil and gas, tight sandstone and other projects that require long horizontal drilling. The bit can provide stable high mechanical drilling speed and accurate trajectory control.
Manager of geothermal well drilling project
In view of the common high temperature and high abrasive granite formation in geothermal development, the high temperature resistant cutting teeth and matrix structure of the product can resist the high temperature environment at the bottom of the well to ensure continuous drilling without thermal failure.
Site supervision of directional and horizontal wells
Designed for operators who need frequent sliding guidance and rotary guidance, the optimized diameter and short profile design make it have excellent deflection capacity and tool face stability, reducing directional operation time.
Mine Exploration and Engineering Drilling Technician
It is suitable for coalbed methane extraction drilling and large-diameter engineering hole construction. Its solid steel structure and large flow channel design can meet the demand of large displacement slag discharge and keep the borehole wall stable under complex geological conditions.
Fixed Cutter Drill Bits instructions for use
Check the appearance and nozzle of the bit before entering the well
Always check the cutting teeth for transport damage prior to tripping in, verify that the nozzle size is in accordance with the hydraulic program and is tightened, and apply a sufficient amount of special API thread oil to the joint threads.
The fastening torque strictly follows the API standard
Use a special bit loader for fastening. It is forbidden to use a pipe wrench to directly clamp the bit blade or cutting tooth. The fastening torque shall be strictly in accordance with the recommended value of API Spec 7-1 to prevent thread damage.
Bottom hole modeling and low parameter running-in drilling
When the drill bit is 1 meter close to the bottom hole, start the drilling pump, use 30 r/min low speed and 2 tons low bit pressure to contact the bottom hole, run-in drilling at least 0.5 meters to establish the bottom hole model, and then gradually increase to the design parameters.
Real-time drilling parameter monitoring and adjustment
During the drilling process, the torque and riser pressure shall be closely monitored. In case of severe fluctuation of torque caused by sudden change of formation hardness, the WOB or rotating speed shall be reduced immediately to eliminate stick-slip vibration and prevent chipping of cutting teeth.
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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.
How to choose Fixed Cutter Drill Bits for carcass and steel body?
The matrix bit has strong erosion resistance and is suitable for high abrasive formation and high speed drilling. The steel body bit has good impact toughness, high blade height and large chip removal space, and is more suitable for fast drilling in soft formation, large displacement and complex hydraulic design.
Can the drill be repaired and reused?
Steel body drill bits usually have good repairability, and the cutting teeth can be replaced and welded by professional factories after they are damaged; once the body of the matrix drill bit is broken or severely eroded, it is difficult to repair, and usually only the cutting teeth can be replaced.
How to adjust drilling parameters when encountering soft and hard interlaced formations containing gravel?
When entering the gravel layer or the soft and hard cross zone, the rotation speed should be properly reduced and the bit pressure should be controlled. The strategy of “low rotation speed and medium bit pressure” should be adopted to reduce the instantaneous impact load on the cutting teeth and prevent tooth chipping.
Can the size of the drill nozzle be changed at will?
It can be replaced, but it must be hydraulically calculated. The total flow area of the nozzle determines the pressure drop and impact force of the drill bit. The wrong nozzle combination may cause the pump pressure to be too high or the bottom hole cleaning ability is insufficient, which may cause mud bag.
What does the IADC code for Fixed Cutter Drill Bits mean?
The IADC code consists of three digits and one letter, representing the body material (steel body/carcass), formation hardness grade (1-4), cutting tooth size/density (1-4) and appearance characteristics (such as different tooth shapes), which are used to guide the selection.
What should I pay attention to when the drill bit is stored for a long time?
It should be stored in a dry and ventilated place to avoid degradation of rubber seals (if any) due to direct sunlight. A protective cover shall be reserved at the cutting tooth to prevent hard objects from bumping. The joint thread shall be coated with anti-rust oil and wear thread protector.
Please feel free to contact us. We look forward to hearing from you.
Fixed Cutter Drill Bits Support Customization
This Fixed Cutter Drill Bits adopts the design of deep de-cobalt PDC cutting teeth and force balance blade, which increases the mechanical drilling speed by more than 30% in shale and hard rock formations, prolongs the footage life of a single drill bit twice, significantly reduces the drilling cost per unit footage, and supports batch ordering.
Body Material
Steel body or carcass optional
Blade Design
Three to eight blade wing design
Cutting Teeth Size
Thirteen mm
Fixed Cutter Drill Bits Characteristics
Improve wear resistance in hard formations
Using high-performance cutting teeth with thermal stability up to 750 degrees Celsius, combined with the interface non-planar design, the wear resistance of the cutting teeth in the hard formation is increased by 40%, and the diamond layer is effectively resisted by frictional heat.
Improve the removal efficiency of rock debris to prevent bit mud
After CFD simulation and optimization of nozzle layout and flow channel design, the removal efficiency of rock cuttings at the bottom of the well is improved by 35%, effectively preventing the mud bag of the drill bit when drilling in high viscous mudstone formation, and ensuring that the cutting teeth always contact fresh rock.
Active damping structure to reduce underground stick-slip vibration
The cutting tooth arrangement optimized by computer simulation makes the unbalanced force of the drill bit less than 4%, greatly reduces the underground stick-slip vibration, protects the underground measuring instrument and improves the slope stability of directional drilling.
Shock-resistant defense Absorbs shock loads
The anti-impact impregnated insert or secondary cutting tooth is arranged behind the main cutting tooth, which can absorb 80% of the impact load generated when drilling gravel layer or soft and hard staggered formation, and prevent the main cutting tooth from chipping damage.
Rules for ensuring smooth borehole trajectory
The diameter-preserving area is inlaid with high-density thermally stable polycrystalline diamond, and the diameter-preserving length tolerance is strictly controlled within 0.5mm to ensure smooth and regular wellbore trajectory and reduce the risk of resistance in subsequent casing operation.
Integrated steel body CNC machining
For the steel body model, the five-axis linkage numerical control center is integrally formed, and the high-strength alloy steel material is selected. The torsional strength of the body is increased by 25%, and it can withstand the extreme mechanical load during deep well drilling with high torque.
Fixed Cutter Drill Bits Technical Specifications Table
| Parameter Items | Detailed specifications |
| Product Name | Fixed Cutter Drill Bits |
| IADC code range | M123 to M433 (carcass) / S123 to S433 (steel body) |
| Applicable size range | 3 1/2 inches to 26 inches (88.9 mm to 660.4 mm) |
| Blade material | Tungsten carbide matrix body or high-strength alloy steel body |
| Cutting tooth dimensions | Available in 19mm, 16mm, 13mm, 10mm, and 8mm. |
| Number of blades | 3 to 8 wings (customized according to formation hardness and displacement) |
| Nozzle type | Threaded fixed carbide nozzle (with interchangeable orifice diameters) |
| Connector thread standard | Compliant with API Spec 7-1 standards (NC31, NC38, NC46, NC50, 6-5/8 REG) |
| Diameter-keeping materials | Heat-stabilized polycrystalline diamondand tungsten carbide cemented carbide blocks |
| Recommended engine speed | 60 rpm to 250 rpm (up to 300+ rpm with downhole power drilling tools) |
Fixed Cutter Drill Bits Comparison Points
Overcome the bottleneck of low mechanical drilling speed in deep shale layer
Using sharp PDC cutting teeth to produce efficient shearing action, instead of traditional inefficient extrusion crushing, the average mechanical drilling speed in shale formation will be increased by more than three times, greatly shortening the single well construction cycle.Eliminate the risk of falling off downhole moving parts
The integrated fixed cutting structure design with no moving parts completely abandons the easily damaged bearing system, and fundamentally eliminates the complex accidents such as underground fishing caused by the failure of the bearing.Solve the problem of frequent tripping in long well sections
With the super wear resistance and thermal stability of the composite sheet, a single drill bit can complete several kilometers of footage, realizing the completion of the entire well section in 1 trips, effectively reducing the number of trips, and reducing the daily cost and labor cost of the drilling rig.Fixed Cutter Drill Bits for Crowd
Oil and Gas Deep Well Drilling Engineer
It is suitable for engineers responsible for deep reservoir development, especially for shale oil and gas, tight sandstone and other projects that require long horizontal drilling. The bit can provide stable high mechanical drilling speed and accurate trajectory control.
Manager of geothermal well drilling project
In view of the common high temperature and high abrasive granite formation in geothermal development, the high temperature resistant cutting teeth and matrix structure of the product can resist the high temperature environment at the bottom of the well to ensure continuous drilling without thermal failure.
Site supervision of directional and horizontal wells
Designed for operators who need frequent sliding guidance and rotary guidance, the optimized diameter and short profile design make it have excellent deflection capacity and tool face stability, reducing directional operation time.
Mine Exploration and Engineering Drilling Technician
It is suitable for coalbed methane extraction drilling and large-diameter engineering hole construction. Its solid steel structure and large flow channel design can meet the demand of large displacement slag discharge and keep the borehole wall stable under complex geological conditions.
Fixed Cutter Drill Bits instructions for use
Check the appearance and nozzle of the bit before entering the well
Always check the cutting teeth for transport damage prior to tripping in, verify that the nozzle size is in accordance with the hydraulic program and is tightened, and apply a sufficient amount of special API thread oil to the joint threads.
The fastening torque strictly follows the API standard
Use a special bit loader for fastening. It is forbidden to use a pipe wrench to directly clamp the bit blade or cutting tooth. The fastening torque shall be strictly in accordance with the recommended value of API Spec 7-1 to prevent thread damage.
Bottom hole modeling and low parameter running-in drilling
When the drill bit is 1 meter close to the bottom hole, start the drilling pump, use 30 r/min low speed and 2 tons low bit pressure to contact the bottom hole, run-in drilling at least 0.5 meters to establish the bottom hole model, and then gradually increase to the design parameters.
Real-time drilling parameter monitoring and adjustment
During the drilling process, the torque and riser pressure shall be closely monitored. In case of severe fluctuation of torque caused by sudden change of formation hardness, the WOB or rotating speed shall be reduced immediately to eliminate stick-slip vibration and prevent chipping of cutting teeth.
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Get a Free Quote Today.
FAQ
How to choose Fixed Cutter Drill Bits for carcass and steel body?
The matrix bit has strong erosion resistance and is suitable for high abrasive formation and high speed drilling. The steel body bit has good impact toughness, high blade height and large chip removal space, and is more suitable for fast drilling in soft formation, large displacement and complex hydraulic design.
Can the drill be repaired and reused?
Steel body drill bits usually have good repairability, and the cutting teeth can be replaced and welded by professional factories after they are damaged; once the body of the matrix drill bit is broken or severely eroded, it is difficult to repair, and usually only the cutting teeth can be replaced.
How to adjust drilling parameters when encountering soft and hard interlaced formations containing gravel?
When entering the gravel layer or the soft and hard cross zone, the rotation speed should be properly reduced and the bit pressure should be controlled. The strategy of “low rotation speed and medium bit pressure” should be adopted to reduce the instantaneous impact load on the cutting teeth and prevent tooth chipping.
Can the size of the drill nozzle be changed at will?
It can be replaced, but it must be hydraulically calculated. The total flow area of the nozzle determines the pressure drop and impact force of the drill bit. The wrong nozzle combination may cause the pump pressure to be too high or the bottom hole cleaning ability is insufficient, which may cause mud bag.
What does the IADC code for Fixed Cutter Drill Bits mean?
The IADC code consists of three digits and one letter, representing the body material (steel body/carcass), formation hardness grade (1-4), cutting tooth size/density (1-4) and appearance characteristics (such as different tooth shapes), which are used to guide the selection.
What should I pay attention to when the drill bit is stored for a long time?
It should be stored in a dry and ventilated place to avoid degradation of rubber seals (if any) due to direct sunlight. A protective cover shall be reserved at the cutting tooth to prevent hard objects from bumping. The joint thread shall be coated with anti-rust oil and wear thread protector.
