| 适用于破碎地层的新型单动双管钻具 |
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| 引用本文： | 杨昌杰, 张绍和, 苏宏岸, 赵冲全, 吴昊. 适用于破碎地层的新型单动双管钻具[J]. 煤田地质与勘探, 2014, 42(1): 87-89. DOI: 10.3969/j.issn.1001-1986.2014.01.021 |
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| 作者姓名： | 杨昌杰 张绍和 苏宏岸 赵冲全 吴昊 |
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| 作者单位： | 中国有色金属工业昆明勘察设计研究院;中南大学有色金属成矿预测教育部重点实验室;中南大学地球科学与信息物理学院; |
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| 基金项目： | 湖南省自然科学基金项目(07JJ6089) |
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| 摘 要： | 针对极度破碎地层取心率不高问题，设计并制造了一种新型单动双管钻具。该套金刚石单动双管钻具由钻杆接头、单动装置、内管、外管、卡心装置和超前侧喷钻头等组成。通过在云南羊拉矿区试验，能有效地提高破碎地层岩心采取率。
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| 关 键 词： | 破碎地层 单动双管钻具 取心率 |
| 收稿时间： | 2012-10-16 |
The application test of the new double-barreled and single-acting coring tool in fractured formation |
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| Yang Changjie, Zhang Shaohe, SU Hong'an, Zhao Chongquan, WU Hao. The application test of the new double-barreled and single-acting coring tool in fractured formation[J]. COAL GEOLOGY & EXPLORATION, 2014, 42(1): 87-89. DOI: 10.3969/j.issn.1001-1986.2014.01.021 |
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| Authors: | Yang Changjie Zhang Shaohe SU Hong'an Zhao Chongquan WU Hao |
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| Abstract: | Aiming at the problem of low coring recovery rate in extremely fractured formations,the paper designs a new double-barreled and single-acting coring tool,which comprises tool joint,single acting motion,inner pipe,outer pipe,core device and advance bore and lateral jet bit etc.Through the application test in Yangla mine,it can greatly improve the coring recovery rate in extremely fractured formations. |
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| Keywords: | fractured formation double-barreled and single-acting coring tool coring recovery rate |
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