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Products
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High-Performance PDC Cutters for Oilfield Drill Bits
Dennis Tool Company develops and manufactures a complete line of high-performance polycrystalline diamond compact (PDC) products for fixed cutter drill bits. These products are available in all standard diameters ranging from 8mm to 19mm. The patented, non-planar interface geometries were designed using sophisticated FEA modeling and stress analysis to maximize diamond content while improving the impact strength of the overall cutting structure. Proprietary microwave sintered carbide substrates are utilized to offer carbide substrate grades that are optimized specifically for PDC cutter applications. This has resulted in exceptional downhole performance not possible with conventional carbide materials. In-house manufacturing of the microwave sintered carbide has reduced the development time of new products by several weeks or months. Using advanced engineering and materials technology, Dennis Tool Company continues to push the performance limits of PDC cutters used to drill increasingly harder, more abrasive, and interbedded formations |
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PDC and MSC Inserts
Dennis Tool Company developed the raw material specifications and processing parameters for special carbide grades of PDC substrates and roller cone drilling bit inserts. These specialty products are primarily used for gauge protection and in cutting structures for bits designed to handle formations ranging from soft to hard, to highly abrasive. Durable microwave sintered carbide (MSC) inserts dramatically improve the impact strength, abrasion resistance, and erosion resistance of bits and extend the life of the cutting structure. The higher strength:wear ratio allows for more aggressive loading which leads to higher penetration rates. |
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Thrust and Radial Bearings for Downhole Tools
Dennis Tool Company makes specialty bearing products used in applications such as oilfield drilling tools. In many oilfield applications, PDC thrust bearings directly replace roller or ball bearings. Use of PDC thrust bearings results in lower reactive torque than roller or ball bearings, which reduces power loss in the tools. PDC bearings are able to carry much higher loads and can operate in harsh downhole environments without protection. Because PDC bearings can operate in mud, air, or air mist environments without seals, they can be used in high temperature applications up to 1600°F. Typical life improvement of PDC thrust bearings versus standard roller or ball bearings is usually 10 to 20 times or longer. Radial bearings utilizing MSC inserts have demonstrated up to 10 times life improvement over conventional carbide bearings. |
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