| 水平螺旋钻进钻杆排粉机理实验 |
| |
| 引用本文： | 叶根飞.水平螺旋钻进钻杆排粉机理实验[J].煤田地质与勘探,2010,38(5):71. |
| |
| 作者姓名： | 叶根飞 |
| |
| 作者单位： | 煤炭科学研究总院西安研究院, 陕西 西安 710054 |
| |
| 摘 要： | 为了研究松软煤层螺旋钻进钻杆排粉机理，用相似模型实验研究螺旋钻杆的排粉，宏观了解煤粉颗粒在螺旋钻杆作用下的运动形式，从理论上求解其运移的速度，并通过实验验证螺旋钻杆动力参数和结构参数对其排粉量的影响。实验显示:螺旋钻杆外径参数、转速和钻进速度等动力参数相同的情况下，螺距和心杆尺寸的大小对钻杆的排粉量影响很大；不同的螺旋钻杆其转速适合，螺旋钻杆才能很好的排粉。
|
| 关 键 词： | 螺旋钻杆 螺旋输送 排粉机理 实验 |
| 收稿时间： | 2010-03-04 |
Cuttings discharge mechanism of spiral rod in horizontal auger drilling |
| |
| YE Genfei.Cuttings discharge mechanism of spiral rod in horizontal auger drilling[J].Coal Geology & Exploration,2010,38(5):71. |
| |
| Authors: | YE Genfei |
| |
| Institution: | XI'an Branch, China Coal Research Institute, Xi'an 710054, China |
| |
| Abstract: | In order to study the cuttings discharge mechanism of rod in auger drilling in soft coal seams, the paper studied cutting discharge of auger rod through experiment on similar model to macroscopically understand the movement patterns of coal particles under action of auger rod, to theoretically find out their transport speed, and to verify the influence of dynamic and structural parameters of auger rod on amount of discharged cuttings through experiment. Experiment indicated that in the case that the outer diameter, rotation speed and drilling speed are the same, the pitch and the size of rod influence greatly the amount of discharged cuttings, and auger rod can discharge well cuttings when it rotates at suitable speed. |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《煤田地质与勘探》浏览原始摘要信息 |
| 点击此处可从《煤田地质与勘探》下载免费的PDF全文 |
