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硬质合金钻头的结构和形式的选择,主要是根据岩性和地层构造条件:硬度、研磨性、致密程度、裂隙大小、岩石的物理机械性质及其所处的状态而定。选择合理的钻头结构形式,不仅可以提高钻井效率减少事故,同时还可以节省刃具的消耗,降低成本,并是保证钻井质量和速度的关键。我矿区位于云应盆地,地层主要为第三系的泥灰岩和少量硬石膏组成。原采用三翼刮刀形钻头进行全面钻进,从所钻的几口盐井来
The choice of the structure and form of the carbide drill is based primarily on lithology and formation conditions: hardness, abrasiveness, density, fracture size, physical and mechanical properties of the rock, and the state in which it is located. Choosing a reasonable form of bit structure can not only improve drilling efficiency and reduce accidents, but also save tool consumption and reduce costs, which is also the key to ensure drilling quality and speed. My mine is located in Yunying basin, the strata are mainly composed of marl and a small amount of anhydrite. The original three-blade scraper-shaped drill for full drilling, drilling from a few wells to come