568 m stable drilling in f=9 limestone with minor quartz and slight fractures

Hard-rock drilling performance | Firm PDC cutter bonding | Controlled wear after field use

Image Comparison

Before Use	Before Use – Detail View	After Field Use
New bit structure and cutter layout	Clear PDC cutter and arc-angle wing profile	Our product after 568 m drilling in inclined-shaft limestone conditions, showing structural integrity, firmly bonded PDC cutters, and controlled wear.

1. Working Conditions

2. Formation & Drilling Parameters

3. Performance After Field Use

• High footage performance: The bit achieved 568 m of accumulated drilling with stable operation over 6 continuous days.
• Stable structural retention: The bit body, three-wing profile, and arc-angle cutting structure remained intact after field use.
• Firm PDC cutter bonding: The PDC cutters remained tightly bonded to the bit body, with no obvious loosening, detachment, or delamination.
• Reliable wear resistance: Under f=9 limestone with minor quartz content, the cutting area showed controlled wear and stable edge support.
• Strong impact resistance: The bit withstood continuous load, impact, and slight fractured-rock conditions without obvious structural failure.
• Smooth drilling and cuttings removal: The three-wing arc-angle design helps improve drilling stability and reduce the risk of abnormal wear or jamming.

4. Key Advantages

• Durable hard-rock performance: Suitable for limestone, quartz-bearing formations, and slightly fractured rock.
• Wear-resistant cutting structure: Optimized PDC cutter layout and wing support help extend service life in long-distance drilling.
• Impact-resistant design: The arc-angle profile helps absorb localized impact and improves adaptability in complex formations.
• Stable cutter bonding: A reliable bonding interface helps reduce the risk of cutter loosening and detachment.
• Efficient and consistent drilling: Supports higher drilling continuity and reduces downtime caused by frequent bit replacement.