Understanding the Evolution of HDD PDC Drill Bits Over the Years

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Even though they were originally designed for the oil and gas industry in early 1970s, the designs of PDC bits have evolved rather dramatically over the years to fit the needs of several other drilling industries including horizontal directional drilling.

HDD drill bits and hole openers are fast, durable, and steer easily in correct formations. A mismatch, thus, is well capable of affecting the overall performance of a bit or a reamer significantly. As far as the designs of PDC drill bits are concerned, depending upon the number of blades, size of the cutters, and the blade angles, they vary greatly. 

While a PDC bit with a greater number of blades can handle the harder formations well, it cuts slower in softer formations. PDC drill bits and hole openers work exceptionally well in formations such as shale, sandstone, limestone, sand, and clay. The best thing about PDC drilling tools is that while most tools are only designed for harder formations, these work well in both soft and hard formations.

Features of different PDC bits:

  • Three-blade PDC bits work well in very soft formations and the recommended PSI for these is 2,000 to 8,000

  • Four-blade PDC bits work well in very soft as well as medium soft formations and the recommended PSI for these is 6,000 to 11,000

  • Five-blade PDC bits work well in medium soft and medium hard formations and the recommended PSI is 8,000 to 20,000

  • Six-blade PDC bits work well in medium hard to hard formations and the recommended PSI for six-blade PDC bits is 15,000 to 30,000

Rockpecker is counted among the most trusted drill PDC bit manufacturers across the globe. We can also customize our products to suit your requirement. Feel free to browse through the website to request a quote today.