Core Technical Principle
Ordered diamond core bits adopt precision arrangement processes, achieving a deviation between diamond position and design coordinates within 10%. By optimizing the spacing between diamonds (typically 1.5–2.5 times the particle diameter) and the number of layers (2–4 layers), the diamonds on the same working face jointly bear drilling pressure and impact, thereby significantly increasing the rock-breaking efficiency per unit area.
Key Performance Data and Advantage Analysis
Significantly Improved Drilling Efficiency
Because the diamond particles are orderly distributed, each particle participates in cutting, avoiding overlap and voids common in random distribution. Comparative drilling data show:
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Under identical footage conditions, the average drilling efficiency of ordered diamond core bits is 30%–35% higher than that of conventional random-distribution bits.
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Diamond protrusion height is more uniform, with protrusion height values more than doubled, ensuring sustained sharp cutting.
Extended Service Life
The ordered structure creates an ideal “tadpole-shaped” wear profile of the matrix, facilitating simultaneous diamond protrusion and self-sharpening. Continuous operation data indicate:
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The total footage life of ordered diamond core bits is 80%–90% longer than that of conventional products.
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In medium-hard rock formations (Protodyakonov hardness coefficient f=8–12), the average footage per bit reaches 45–60 meters without the need for replacement during drilling.
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Matrix wear is reduced by approximately 40%, significantly decreasing downtime.
Effective Control of Material Cost
With precise spacing and layer design, the cutting paths of each diamond do not overlap, markedly improving utilization. Data calculations show:
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Under the same or even higher cutting performance, the total diamond consumption of ordered bits can be reduced by 15%–20%.
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Abrasion cost per unit footage decreases by about 25%, delivering direct economic benefits to users.
Improved Drilling Accuracy and Anti‑deviation Capability
The ordered bits, combined with an optimized matrix hardness gradient (HRC 35–45), enhance guiding stability. Test results indicate:
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Within a vertical drilling depth of 100 meters, the hole deviation rate can be controlled to within 0.3%, which is more than 60% lower than that of conventional products (deviation rate approximately 0.8%).
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Core recovery (RQD value) increases on average to 92%, meeting high‑standard coring requirements.
Wide Range of Applicable Conditions
The product can adapt to various rock types and reinforced concrete structures with Protodyakonov hardness coefficients f=4–14. Operational statistics under different conditions show:
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In hard rocks such as granite and basalt (f=12–14), drilling efficiency remains 0.8–1.2 meters per hour.
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In high‑strength concrete (C50–C80) coring operations, the average continuous footage per bit reaches 35–50 meters, with intact and smooth core surfaces.
Technology Development Trend
With continuous improvements in ordered arrangement preparation processes (e.g., multi‑station automatic dispensing technology, precision hot‑pressing sintering), the manufacturing consistency and batch stability of ordered diamond core bits are steadily enhanced. Data indicate that the specific energy (energy required to break a unit volume of rock) of current ordered bits can be 25%–30% lower than that of traditional products under the same drill power. In the future, the application share of this technology in deep mineral exploration, underground engineering, and special drilling is expected to exceed 40% of the drilling tool market, driving the industry toward higher efficiency and precision.
About Ordered Diamond Core Bits
Ordered diamond core bits are drilling tools that use diamond particles arranged in an orderly pattern within the matrix, consisting of a steel body and diamond-impregnated segments. Compared with conventional random‑distribution diamond bits, they offer verifiable quantitative advantages in drilling efficiency (30%–35% increase), service life (80%–90% extension), material utilization (15%–20% reduction in diamond consumption), and drilling accuracy (more than 60% reduction in deviation rate). They are suitable for geological exploration, construction engineering, hydropower construction, and mining.
