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The advantages of impregnated diamond wire-line coring bits produced in China are mainly as follows:

In terms of bit performance

- High-quality diamonds: With the continuous progress of diamond production technology in China, high-quality diamond particles can be provided, ensuring that the bits have excellent hardness and wear resistance. When drilling in hard formations, they can maintain good cutting performance, reduce bit wear, prolong the service life of bits, and lower drilling costs.

- Reasonable matrix design: Domestic researchers have continuously optimized the matrix formula and design of impregnated diamond bits. For example, Ma Yinlong from Jilin University designed the matrix of impregnated diamond bits with weak wear resistance and strong holding force, which has achieved the uniform distribution of diamonds in the matrix and improved the stability and cutting efficiency of the bits.

- Advanced manufacturing processes: Advanced manufacturing processes such as hot pressing sintering and electroplating are adopted, which can precisely control the distribution of diamond particles and the performance of the matrix, produce bits with high dimensional accuracy and stable quality, improve the adaptability between bits and drill pipes, and reduce vibration and energy loss during the drilling process.

In terms of drilling efficiency

- Adaptability to multiple formations: China has a vast territory and diverse geological conditions, which has led to the strong formation adaptability of domestic impregnated diamond wire-line coring bits. Whether it is hard granite, dense sandstone, fractured zones, or complex formations with alternating hard and soft layers, they can all exhibit good drilling performance and reduce the reduction in drilling efficiency caused by frequent bit changes.

- High cutting efficiency: High-quality diamond particles and reasonable matrix design enable the bits to break rocks quickly and effectively during the drilling process, improving the cutting efficiency and reducing the drilling time. Meanwhile, the bits have good stability and can maintain stable drilling at high rotational speeds, further improving the drilling efficiency.

In terms of core quality

- Good coring quality: The impregnated diamond bits cause less disturbance to the core during the drilling process, can better maintain the original structure and integrity of the core, improve the core recovery rate and quality, and provide more accurate and reliable samples for geological analysis.

- Standard core diameter: The impregnated diamond wire-line coring bits produced in China have strict control over dimensional accuracy and can drill cores with standard diameters, facilitating subsequent core analysis and testing work.

In terms of cost-effectiveness

- High cost-performance ratio: On the premise of ensuring performance, domestic impregnated diamond wire-line coring bits have relatively low prices and a high cost-performance ratio, which can reduce the procurement costs for drilling enterprises.

- Long service life: Due to the continuous improvement of the quality and performance of the bits, their service life has also been prolonged accordingly, reducing the frequency and quantity of bit replacements and further saving drilling costs.