Research on off-line data synchronization method of measuring while drilling system
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摘要: 针对煤矿用普通中小型回转钻机的随钻测斜系统姿态数据无法在线上传的问题，提出了一种离线式数据同步方法。该方法是在打钻过程中,孔口同步仪和孔底探管分别对钻杆数据和钻孔测点姿态数据进行实时采集，打钻完成后，同步仪统一读取全部探管数据，同时采用同步方法进行有效测点筛选，最终实现钻孔轨迹绘制。试验结果表明，该离线式数据同步方法使钻杆数据和姿态数据实现了同步，能够在不改动钻机结构的前提下充分满足普通中小型回转钻机的随钻测斜需求。Abstract: An off-line data synchronization method was proposed to solve the problem that attitude data of measuring while drilling system of an ordinary medium or small rotary drilling rig cannot be uploaded on-line. In the method, hole synchronizer and exploring tube at bottom of the hole are used to collect real-time drill-pipe data and attitude data of the borehole respectively during drilling process; after drilling, the synchronizer reads all the attitude data from the exploring tube, and then selects the effective measuring points to drawing trajectory by linking these selected points. Test results show that the off-line data synchronization method realizes synchronization of borehole data and attitude data, can fully meet demands of measurement while drilling of the ordinary medium or small rotary drilling rig without any change of structure of the drilling rig.
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