Engineered for maximum rate of penetration (ROP) and longevity in abrasive volcanic sandstone, basalt, and high-impact deepwater formations.
Designed to withstand localized high impact and hard strata under deep-sea conditions.
Optimal diamond density provides excellent thermal stability for long runs.
Proprietary diamond-carbide interface reduces spalling and cutter breakage.
Engineered specifically for heavy oilfields, reducing downtime during bit changes.
The Republic of Seychelles, spanning over 1.3 million square kilometers of Exclusive Economic Zone (EEZ) in the Western Indian Ocean, presents a highly promising frontier for offshore hydrocarbon and geothermal resources. Strategic organizations like PetroSeychelles are actively supervising upstream oil exploration projects, identifying critical sedimentary structures such as the Mascarene Plateau.
Drilling in these areas presents unique challenges: thick volcanic basalt flows, abrasive carbonates, and deepwater temperatures that stress drilling infrastructure. Conventional tools fail due to rapid thermal wear and impact fractures. Henan Elliott’s premium PDC (Polycrystalline Diamond Compact) cutters are designed to meet this demand, offering customized non-planar geometries that maximize the Rate of Penetration (ROP) in deepwater wells.
PDC cutters are the standard choice for over 90% of global oilfield drilling operations. As deepwater and ultra-deepwater exploration expand, the demands on diamond cutting tips are evolving rapidly.
Our cutters are synthesized under extreme pressures of up to 8.0 GPa and temperatures exceeding 1400°C. This enhances the direct diamond-to-diamond bonding (D-D bonding), providing maximum abrasion resistance.
By selectively removing the cobalt catalyst from the diamond table (to depths of 100-350 microns), we mitigate thermal degradation during high-speed, high-temperature drilling in tough geological zones.
Tailored geometries alleviate interfacial residual stress between the Polycrystalline Diamond layer and the Tungsten Carbide substrate, eliminating the primary risk of delamination.
Henan, China, is the global hub for synthetic diamond manufacturing, accounting for over 70% of global output. Sourcing from Henan Elliott Cutters provides major advantages in supply chain speed, raw material quality, and technology validation.
Our facility integrates the entire value chain from micro-grain diamond powder preparation to finishing and ultrasonic inspection, ensuring quality control at every stage.
Henan Elliott Cutters Co., Ltd. stands out for its technological innovation and operational excellence. Our in-house research team, led by material science experts, specializes in cutting-edge studies of PDC microstructures, interfacial bonding strength, and thermal stability.
We monitor every step of the PDC production process, maintaining high standards from the initial raw diamond powder selection to the finished product.
1. Crushing
2. Shaping
3. Filtrating
4. Picking
5. Centrifugation
6. Dry
7. Checking
8. Finished Product
Select the optimal dimensions and cutter geometries based on rock hardness, impact risk, and specific downhole conditions.
| Model / Size | Outer Diameter (mm) | Overall Height (mm) | Diamond Thickness (mm) | Recommended Formations (Seychelles & Global) |
|---|---|---|---|---|
| 1308 | 13.44 ± 0.05 | 8.0 ± 0.1 | 1.5 - 2.2 | Medium to hard limestone, sandstone, interbedded strata. Great dynamic stability. |
| 1613 | 16.00 ± 0.05 | 13.2 ± 0.1 | 2.0 - 2.5 | Soft to medium-hard layers, maximizing drilling velocity (ROP). |
| 1919 | 19.00 ± 0.06 | 19.0 ± 0.1 | 2.2 - 3.0 | Abrasive volcanic formations, deepwater drilling. High wear resistance. |
| Bullet / Dome | Various (13 / 16 / 19) | Dome profile | Variable | Tough volcanic basalt layers, high impact applications. |
Get expert answers to common technical and sourcing questions regarding PDC application in demanding drilling environments.
Basalt is highly abrasive and causes rapid thermal degradation. We recommend using our specialized bullet or dome PDC cutters combined with acid-leaching technology. Leaching removes the cobalt catalyst from the diamond layer, which prevents heat cracking and dynamic spalling during drilling through basalt intrusions.
Standard manufacturers sinter at 5.5 to 6.0 GPa. Synthesizing at 8.0 GPa compresses the diamond grains further, promoting complete diamond-to-diamond bonding. This minimizes cobalt retention within the diamond matrix, increasing thermal resistance and extending the lifecycle of the drill bit.
Yes. As a direct manufacturer, we offer complete OEM/ODM options. We can customize the raw material chemistry, the diamond-carbide interface curve, the cutter's outer dimensions, the edge bevel chamfer, and apply specialized laser etching or packaging to match your brand requirements.
We use a strict testing system including raw material spectral analysis, C-scan ultrasonic testing to verify internal interface integrity, drop impact tests, and vertical turret lathe (VTL) tests to confirm continuous abrasion resistance. Every batch is traceable back to its production run.
Flat interfaces are prone to stress cracking under sudden impacts. Our non-planar interface designs distribute shear stress more evenly across the carbide substrate, significantly reducing the risk of delamination when drilling through interbedded shale and hard limestone.
For standard dimensions such as 1308, 1613, and 1916, we maintain a rolling inventory of over 100,000 pieces, enabling shipping within 3–5 working days. Custom designs requiring new mold layouts generally ship within 20 to 30 days.
Yes. Our engineering department provides wear diagnostics. Simply send us photographs or samples of the worn cutters. We will analyze the failure mode (thermal wear, impact spalling, or substrate cracking) and recommend a customized diamond-to-cobalt ratio for your next batch.
Yes, all Henan Elliott PDC cutters meet ISO 9001 and API standards. They are designed to fit seamlessly into premium PDC matrix body bits, steel body bits, and specialized hybrid drill bits used globally.
Explore our complete catalog of high-hardness, shock-resistant, and high-temperature cutting elements tailored for global oilfield and mining applications.
Arc angle configuration redirects mechanical stress, protecting the bit's nose area.
The optimized point profile fractures rock efficiently, improving speed in hard layers.
Modified carbide substrate properties absorb high vibrations in deep-sea wells.
The industry-standard 13mm size, optimized with specialized diamond formulas.
Engineered with tight tolerance control to ensure secure placement during brazing.
A full range of cutter diameters suitable for complex core drilling operations.
Complies with international API standards, offering high durability in deep wells.
High-grade cobalt-tungsten alloy offers a strong foundation for the diamond layer.
A pointed shape designed for high-stress drilling in tough rock formations.
Specially engineered for smaller core drill bits and anchoring systems.
Designed to absorb vertical impact forces in variable geological zones.
Specifically leached to handle high temperatures in deep geothermal wells.
Elliott Cutters
