| 囊袋式取心钻具的设计与应用 |
| |
| 引用本文： | 赵哲睿, 张绍和, 燕建龙. 囊袋式取心钻具的设计与应用[J]. 煤田地质与勘探, 2017, 45(3): 162-164,169. DOI: 10.3969/j.issn.1001-1986.2017.03.030 |
| |
| 作者姓名： | 赵哲睿 张绍和 燕建龙 |
| |
| 基金项目： | 湖南省自然科学基金项目（07JJ6089） |
| |
| 摘 要： | 如何提高岩（矿）心采取率是钻探工程施工中关注的重要问题之一。针对在钻探中经常遇到的岩（矿）心采取率低的问题，设计了一套钻探工程施工用囊袋式双管取心钻具。该钻具能利用双管中的塑料囊袋结构满足在极破碎、易冲蚀、极软弱、水敏性等地层中钻探施工实现高取心率的要求，在进行双管钻进工艺且不需增加其他钻探设备的前提下，实现岩心采取率达到90%以上。
|
| 关 键 词： | 破碎地层 岩心采取率 单动双管钻具 囊袋式 超前侧喷钻头 |
| 收稿时间： | 2016-03-12 |
Design and application of bag-type coring tool |
| |
| ZHAO Zherui, ZHANG Shaohe, YAN Jianlong. Design and application of bag-type coring tool[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(3): 162-164,169. DOI: 10.3969/j.issn.1001-1986.2017.03.030 |
| |
| Authors: | ZHAO Zherui ZHANG Shaohe YAN Jianlong |
| |
| Abstract: | How to improve the coring recovery rate is one of the important problems of concern in drilling engineering, this paper describes the design of a bag-type double-barreled coring tool for engineering survey and geological drilling. This coring tool can use the plastic bags in the double-barreled structure to keep coring recovery rate in very broken, easy washout, very soft, water sensitive stratum. Under precondition of using double-barreled coring tool without adding other drilling equipment, the core recovery rate reaches above 90%. |
| |
| Keywords: | fractured formation coring recovery rate double-barreled and single-acting coring tool bag-type advanced lateral jet bit |
| 本文献已被 CNKI 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》下载全文 |
