Application of Directional Drilling and MWD Technology in the Filling Hole Construction
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摘要: 充填钻孔是一种高精度垂直孔,地层促斜、钻孔自然弯曲率较大时,常规钻进方法难以控制钻孔轨迹。在施工中应用定向钻进及随钻测量技术,则可以对钻孔实施全程轨迹监控,使其按照设计轨迹延伸。主要介绍了广西华锡集团股份有限公司铜坑矿将充填站充填孔施工中定向钻进设计、随钻测量、纠斜、侧钻等技术及工艺等。Abstract: Filling hole is a kind of vertical drilling hole with high precision, drilling hole trajectory can not be controlled by the conventional drilling method under the conditions of formation deflection-promoting and large natural bending.By using directional drilling and MWD technology, the drilling trajectory in the whole construction process can be monitored and ex-tended according to the trajectory design.The paper introduces the design of directional drilling, MWD, drilling hole straightening and sidetracking in the filling hole construction.
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Key words:
- filling hole /
- directional drilling /
- MWD /
- drilling hole straightening /
- sidetracking /
- PDM drill
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