IODP Expedition 391 Core drilling summary

Report includes detailed drilling data for each core: pump(s) used, mud pumped, strokes, shear pins/pressure, bit size/rotation, weight on bit, top drive torque, rate of penetration, core jams, winch and wirelines, core catcher/shoe and barrel, and whether core orientation, drillover, formation temperature, tracers, liners were used.

本报告涵盖了每一块岩心的详细钻井数据，具体包括所用泵组、泵送钻井液、冲程数、剪切销钉/压力参数、钻头尺寸/转速、钻压、顶驱扭矩、机械钻速、岩心卡堵情况、绞车与钢缆系统、岩心爪、岩心鞋与岩心筒，以及是否开展岩心定向作业、是否采用扩孔钻进工艺、是否测量地层温度、是否使用示踪剂与衬管。