工程地球物理勘探随钻测量钻机的研制

Research on Engineering Geophysical Exploration MWD Drilling Rig

为提高我国工程地质勘察钻机的技术水平,研制了JDD-100型全液压动力头式工程地球物理勘探多功能钻机。钻机具有静力触探、动力触探、回转钻进、高频振动回转钻进等功能,配有钻进参数检测和自动钻进控制系统,可随钻检测9个钻进参数,并可随钻测量地层密度、地层电阻率等地球物理参数。根据回转动力头的结构和液压马达的工作特性,研制了适用于全液压钻机的输出扭矩检测方法。经实验,钻机对黏土层、卵砾石地层、破碎层的适应性较好,复杂地层的勘察速度提高1.5倍。

In order to improve the geological survey technological level of drilling rig,the type of JDD-100 fully-hydraulic multifunctional drilling rig was developed.The drilling rig has the functions of cone penetration test,dynamic penetration test,rotary drilling and rotary drilling with high-frequency vibration and so on.The drilling rig is settled system of drilling parameter measurement and automatic controlling,which can monitor nine parameters and obtain geophysical parameters such as density and resistivity of stratum.According to the structure of rotation power head and the working property of hydraulic motors,the output torque test method of all hydraulic rig was developed.The experiments in laboratory and in field certify that the drilling rig had better application in the clay,gravel and broken formation and the drilling speed in complex stratum can be improved 1.5 times than other rigs.