肩部圆弧型ＰＤＣ钻头制造技术

一种肩部圆弧型ＰＤＣ钻头，包括上体和下体，上体上端设有螺纹，下体上设有切削齿，上体和下体中心设有水眼，该水眼上部为直孔，下部呈放射状倾斜，其特征在于所述上体和下体为一次加工完成的肩部为圆弧过度的整体式结构，形成钢体ＰＤＣ钻头。本实用新型专利技术采用一体式结构，可一次性加工成型，肩部呈圆弧过渡，具有改善钻井液在井底的流场、有利于冷却切削齿、减少岩屑在井底的重复破碎、有利于岩屑录井、有效防止钻头泥包、减小钻头与岩屑相互作用产生的扭矩、加工工序少、难度小、精度高、质量好、钻头钻井起出时速度快、效率高、成本低等特点，广泛在地质勘探、石油钻井和类似场所应用。（*该技术在2020年保护过期，可自由使用*）

Shoulder arc type PDC bit

A shoulder arc type PDC drill bit, comprising an upper and lower body, the upper body is arranged on the upper end is provided with a lower thread cutting teeth, the upper and lower center is provided with a nozzle, the nozzle is a straight hole, lower radial tilt, which is characterized in that the upper and lower for a processing to complete the whole structure of the shoulder arc, formed steel PDC drill. The utility model adopts an integrated structure, one-time molding, a shoulder arc transition, can improve the drilling fluid in the bottom of the flow field, for cooling cutting teeth, reduce debris in the bottom of repeated crushing, cutting logging, to effectively prevent bit balling, reduce torque, processing and debris produced by the interaction between the drill bit small, small difficulty, high precision, good quality, drilling out speed, high efficiency, low cost, widely used in geological exploration, oil drilling and similar places of application.

【技术实现步骤摘要】

【技术保护点】
１．一种肩部圆弧型ＰＤＣ钻头，包括上体和下体，上体上端设有螺纹，下体上设有切削齿，上体和下体中心设有水眼，该水眼上部为直孔，下部呈放射状倾斜，其特征在于所述上体和下体为一次加工完成的肩部为圆弧过度的整体式结构，形成钢体ＰＤＣ钻头。

【技术特征摘要】

【专利技术属性】
技术研发人员：薄玉冰，薄和秋，
申请(专利权)人：薄玉冰，
类型：实用新型
国别省市：37[中国|山东]