Crowns Shape Core Drilling Bit

Crowns Shape PDC Core Bit: Precision Sampling, Superior Core Quality

Designed specifically for applications demanding high-quality, undisturbed core samples, the Crowns Shape PDC Core Bit excels in engineering-geological drilling and geotechnical investigations. Its unique head profile, combined with advanced PDC cutter technology, delivers precision performance and maximizes core recovery integrity.

The Advantage of the Crown Design

The distinctive crown shape is engineered for tangible benefits during coring operations:

• Enhanced Stability & Centering: The multiple protrusions of the crown provide a broader contact base, significantly enhancing drilling stability, reducing deviation, and ensuring accurate centering when initiating the hole.
• Improved Flushing & Core Protection: The open waterways between the crown segments allow for efficient flushing of cuttings, preventing core erosion and contamination. The shape can also help shield the core as it enters the barrel.
• Optimized Cutting Action: Strategic placement of PDC cutters on the crown faces ensures effective rock shearing while minimizing vibration that could compromise the core sample’s quality.

Engineered for High-Quality Core Recovery

Every element works together to preserve the integrity of your geological sample:

• Premium PDC Cutters: High-performance Polycrystalline Diamond Compact (PDC) cutters provide sharp, efficient cutting with excellent wear resistance, ensuring a clean cut around the core with minimal disturbance.
• Robust Supporting Structure: The durable bit body provides solid support for the crown and cutters, effectively transmitting energy and resisting the stresses of drilling in varied ground conditions.

Ideal Applications

This specialized design is particularly effective for:

• Geotechnical site investigations requiring high sample quality for analysis.
• Foundation exploration and testing for infrastructure projects.
• Mineral resource prospecting where structural integrity of the core is crucial.
• Environmental drilling needing precise, uncontaminated samples.

Specifications and Customization

While available in configurations corresponding to common geotechnical core barrel sizes, our core strength lies in tailoring these Crowns Shape PDC Core Bits precisely to your unique project requirements.

We manufacture bits across a range of standard geotechnical dimensions, but full customization is central to ensuring optimal performance for your specific application. We work closely with you to define the exact specifications needed, including:

• Inner Diameter (ID): To achieve your precise target core sample size.
• Outer Diameter (OD): Engineered to match your borehole requirements and ensure proper annular clearance for flushing.
• Overall Length: Customized to suit your specific core barrel length and drilling setup.
• Thread Connections: A wide variety of industry-standard (e.g., API, DCDMA) and custom thread types are available to guarantee seamless and secure integration with your existing drill string.
• Bit Profile & Cutter Layout: The crown profile and PDC cutter placement can be further optimized based on anticipated formation characteristics and core quality objectives.

Please contact our technical sales team to discuss your application and configure the ideal Crowns Shape PDC Core Bit for your high-precision sampling requirements.