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本队所在矿区为磁铁矿，钻孔深度多为200—400米。自一九七九年六月开始，采用北京地质仪器厂生产的JXT-247型陀螺测斜仪（外径47毫米）测孔斜，至七九年底，我们使用该测斜仪共测孔17个，计4806米。本矿区所施工钻孔均为斜孔。在钻孔施工过程中，每进尺50米测斜一次。个别钻孔在设计顶角较小且开孔地层松软的情况下，开孔后测斜更要频繁些。因此，测斜工作基本上做到边进尺、边测斜、不断提供孔斜数据，以便按照地质要求的弯曲度正常钻进。
The team where the mine is magnetite, drilling depth of mostly 200-400 meters. Since June 1979, JXT-247 gyro inclinometer (outer diameter 47 mm) produced by Beijing Geological Instrument Factory has been used to measure borehole inclination. By the end of 1979, we used this inclinometer to measure the total borehole diameter 17 A total of 4806 meters. The mine construction holes are inclined holes. In the drilling process, measuring 50 meters per meter incline. Individual drilling in the design of the smaller corner and open hole stratum soft case, after the opening of the diagonal to be more frequent. Therefore, the work of measuring inclinations basically achieves the edge footage, side inclinations, and continuously provides hole inclination data so as to normally drill according to the geological requirements of the degree of curvature.