The roller cone bit has been widely used as a tool for drilling rock formations. Significant improvements in drill performance directly reduce drilling costs, especially in the last decade. Both service life and drilling speed are performance indicators for roller cone bit design, which ultimately determine the extent to which the drill bit affects drilling costs.Increasing the drilling speed and service life of the drill bit is an effective way to reduce the drilling cost.
It is gradually recognized that the gauge structure also has a great influence on the drilling speed and life of the drill bit. Especially in the case of high-angle wells and horizontal wells, the drill bit requires a reasonable diameter-preserving structure, and many new-type gauge structures have been researched and developed. Good results have been achieved when applied to roller cone bits.
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