Your Professional PDC Drill Bit Supplier
Henan Deqin New Material Co., Ltd. specializes in the R&D and manufacturing of PDC cutters for oil & gas drilling, mining, and construction applications. The company operates dedicated production lines and modern factory facilities supported by advanced manufacturing and inspection systems. Core equipment includes high-pressure synthesis machines, Scanning Electron Microscopes (SEM), Energy Dispersive Spectrometers (EDS), and X-ray Diffractometers (XRD), ensuring reliable quality control and product consistency. With strong technical expertise and continuous process improvement, DQ provides dependable PDC solutions for global industrial customers.
-
![Steel Body PDC Drill Bit]()
Steel Body PDC Drill Bit1.PDC cutter manufactured by self, quality controllable.. 2.Fast drilling speed, enabling rapid drilling.. 3.Long service life, reducing downhole time and related costs.. 4.Good stability, resulting -
![Matrix Body PDC Drill Bit]()
Matrix Body PDC Drill Bit1.PDC cutter manufactured by self, quality controllable.. 2.Fast drilling speed, enabling rapid drilling.. 3.Long service life, reducing downhole time and related costs.. 4.Good stability, resulting -
![Diamond Drill Bits for Rock]()
Diamond Drill Bits for Rock1.PDC cutter manufactured by self, quality controllable.. 2.Fast drilling speed, enabling rapid drilling.. 3.Long service life, reducing downhole time and related costs.. 4.Good stability, resulting -
![PDC Core Bit]()
PDC Core Bit1.PDC cutter manufactured by self, quality controllable.. 2.Fast drilling speed, enabling rapid drilling.. 3.Long service life, reducing downhole time and related costs.. 4.Good stability, resulting
Why Choose Us
Our Certificate
Our products have passed ISO9001 certification in 2016, ensuring standardized production and reliable quality management.
Quality Control
A full end-to-end quality control system is applied from raw material analysis to final inspection. Multiple performance tests ensure stable and dependable PDC quality.
Sales Market
Our products are exported to the United States, Canada, Russia, Germany, Australia, and South Korea. Long-term cooperation reflects stable quality and trusted service.
OEM & ODM Capability
Our provides flexible OEM and ODM services based on customer requirements. Strong manufacturing experience supports customized PDC solutions and efficient technical communication.
PDC Core Bit
Polycrystalline diamond compact (PDC) core bits was originally introduced for oil drilling bits. The surface of the cylindrical shaped PDC cutters consists of premium synthetic diamond particles sintered together by high pressure and high temperature. The cutters of the PDC coring bits has high hardness, wear resistance and great tenacity, this drill bits are widely used in oil, gas, mining, engineering etc drilling fields.
|
Product parameters |
|||||
|
ITEM |
OD |
ID |
Height |
Teeth NO. |
Corebarrel |
|
75# |
75 |
54.5 |
95 |
4/9 |
73 |
|
94# |
94 |
74 |
120 |
6 |
89 |
|
113# |
113 |
89 |
120 |
8 |
108 |
|
133# |
133 |
109 |
130 |
10 |
127 |
|
153# |
153 |
129 |
145 |
12 |
146 |
|
171# |
171 |
147 |
145 |
14 |
168 |
|
200# |
200 |
174 |
150 |
16 |
194 |
|
219# |
219 |
193 |
150 |
18 |
219 |
|
245# |
245 |
219 |
200 |
20 |
425 |
|
275# |
275 |
249 |
200 |
22 |
273 |
|
325# |
325 |
299 |
200 |
24 |
325 |
Advantages of PDC Core Bit
High Penetration Rates
PDC cutters enable faster drilling speeds compared to roller cone or tungsten carbide bits, reducing overall project time and cost.
Superior Durability
The diamond-enhanced cutting surface resists wear and thermal degradation, extending bit life even in abrasive formations.
Improved Core Recovery
Precision engineering ensures clean, undisturbed core samples with minimal fracturing, crucial for accurate geological interpretation.
Consistent Borehole Quality
Produces smooth, stable boreholes that reduce the risk of deviation, stuck pipes, or collapse—enhancing safety and data reliability.
Lower Vibration and Noise
The shearing action generates less vibration than percussive methods, improving equipment longevity and operator comfort.
Broad Application Range
Effective in medium to hard rock types, including crystalline, metamorphic, and sedimentary formations.
Conventional PDC Core Bits: Equipped with a solid polycrystalline diamond table on the cutting face, these bits excel in soft to medium-hard formations such as shale, limestone, and sandstone.
Hybrid PDC Core Bits: Combine PDC cutters with other durable materials like tungsten carbide inserts or specialized matrix bodies to enhance versatility across mixed lithologies.
Grit PDC Core Bits: Feature diamond-impregnated segments where microscopic diamond grit is embedded throughout the matrix, providing continuous exposure of fresh cutting surfaces as the bit wears.
Drop-Ball PDC Bits: Designed with an internal mechanism that activates upon dropping a ball into the drill string, enabling pressure-actuated cleaning or core release—eliminating the need for a separate core catcher.
Indexed PDC Core Bits: Engineered with precisely arranged cutting segments that create indexed or patterned core breaks, allowing for accurate depth correlation and orie
Continuous Rim PDC Bits: Feature a solid, uninterrupted diamond rim that provides uniform contact with the rock face, resulting in smoother cutting and higher-quality core samples.
Applications of PDC Core Bit
Mineral Exploration Drilling
In mineral exploration, PDC core bits are widely employed for both vertical and directional drilling to extract continuous, high-quality rock cores from targeted geological zones. These cores are critical for assessing the presence, concentration, and spatial distribution of valuable minerals such as gold, copper, silver, iron ore, and diamonds.
Geotechnical Drilling
Geotechnical investigations rely on PDC core bits to obtain undisturbed rock and soil samples for evaluating subsurface conditions prior to major construction projects. This includes infrastructure such as tunnels, dams, bridges, high-rise buildings, and transportation networks.
Hydrocarbon Exploration and Production
In the oil and gas industry, PDC core bits are instrumental in obtaining core samples from deep sedimentary basins to evaluate reservoir potential. These cores provide critical insights into porosity, permeability, fluid content, and rock composition.
Environmental Drilling
PDC core bits are increasingly used in environmental site assessments to investigate soil and groundwater contamination. They allow for the retrieval of continuous core samples from landfills, industrial zones, and contaminated aquifers.
Scientific Research Drilling
Scientific drilling programs use PDC core bits to explore Earth's geological history and dynamic processes. These include international research initiatives such as the International Ocean Discovery Program (IODP) and continental drilling projects.
PDC core bits operate by combining rotational force with controlled axial weight to efficiently cut and remove rock material while maintaining the integrity of the core sample. As the bit rotates, the PDC cutters shear through the rock at the periphery of the borehole, creating a hollow cylinder that advances into the inner tube assembly where it is captured.
The cutting action is primarily abrasive rather than impact-based, which reduces vibration and enables smoother, faster drilling. The hydraulic design of the bit includes waterways or nozzles that channel drilling fluid (mud or air) to cool the cutters, flush away rock cuttings, and stabilize the borehole wall. This combination of mechanical cutting and fluid dynamics ensures continuous core recovery and minimizes core jamming or damage during extraction.
Modern PDC core bits are often used with wireline core retrieval systems, allowing operators to retrieve the core barrel without removing the entire drill string—significantly improving operational efficiency in deep drilling applications.
Geological Exploration Projects: Especially in mineral exploration (e.g., gold, copper, lithium) where high-quality core samples are needed for assay and structural analysis.
Hard and Abrasive Formations: Ideal for drilling through tough rock types like quartzite, gneiss, and basalt where conventional bits wear quickly.
Deep Drilling Applications: Their durability and consistent performance make them suitable for long boreholes requiring minimal bit changes.
Projects Requiring High Core Recovery: When undisturbed, continuous core is essential for stratigraphic logging or engineering assessments.
Automated or High-Speed Drilling Rigs: Compatible with modern drilling systems that utilize high RPM and steady feed pressure.
Maintenance
Cleaning After Use: Immediately after drilling, clean the bit thoroughly to remove mud, cuttings, and water. Use a soft brush and non-corrosive cleaning solution to avoid damaging cutters or clogging waterways. Residual debris can lead to corrosion and impaired cooling during subsequent runs.
Regular Inspection: Examine the bit before and after each use. Check for cutter wear, chipping, or delamination, blocked nozzle ports, and signs of body erosion or thread damage. Use magnification if necessary to detect micro-cracks or early-stage wear.
Lubrication of Threads: Apply a high-quality thread lubricant (e.g., copper-based or anti-seize compound) to the bit connection before assembly. This prevents galling, eases disassembly, and protects against moisture-induced corrosion.
Proper Storage: Store PDC core bits in a dry, temperature-controlled environment away from chemicals, moisture, and physical impact. Use protective caps on threads and place bits on padded racks to prevent cutter damage.
Monitor Service Life: Track usage hours, depth drilled, and formation types encountered. Replace bits when cutter wear exceeds manufacturer recommendations or when ROP drops significantly despite optimal parameters.
Maintain Associated Components: Drill pipes, core barrels, adapters, and stabilizers should be inspected and maintained alongside the bit. Worn accessories can cause misalignment, vibration, and premature bit failure.
FAQ
As one of the most professional PDC drill bit manufacturers in China, our products have good reputation in the market. Please feel free to buy high quality PDC drill bit for sale here from our factory. For price consultation, contact us.
bit pdc, pdc core bit, pdc bitPopular Products
