| 若尔盖铀矿田漏失层空心微珠泥浆试验研究 |
| |
| 引用本文： | 吴金生,董洪栋,张统得,刘卫东.若尔盖铀矿田漏失层空心微珠泥浆试验研究[J].探矿工程,2016,43(3):9-12. |
| |
| 作者姓名： | 吴金生 董洪栋 张统得 刘卫东 |
| |
| 作者单位： | 中国地质科学院探矿工艺研究所,成都理工大学,中国地质科学院探矿工艺研究所,四川省核工业地质局 |
| |
| 基金项目： | 中国地质调查局地质调查项目“高原生态环境脆弱区综合钻探技术应用示范（四川省若尔盖碳硅泥岩型铀矿地质调查）”（编号：12120113017200） |
| |
| 摘 要： | 若尔盖铀矿是我国四大基本类型铀矿田之一，矿层为灰岩、硅灰岩，圈团状纵向裂隙发育，长孔段失返性全漏失，泥浆性能难以维护，孔壁失稳，堵漏花费大量的人力、物力。为提高钻进效率，针对地层漏失机理，通过降低漏失压力实现平衡钻进，分别开展了空气泡沫、微泡沫泥浆以及空心微珠等低密度泥浆体系的研究和试验。实践表明，空心微珠低密度泥浆体系是一种适合若尔盖铀矿田漏失层钻进的泥浆体系。
|
| 关 键 词： | 空气泡沫 微泡沫泥浆 空心微珠泥浆 漏失层 岩心钻探 |
| 收稿时间： | 2015/12/21 0:00:00 |
| 修稿时间： | 2016/1/13 0:00:00 |
Experimental Study on Cenosphere Mud for Leakage Zone of Ruoergai Uranium Ore Field |
| |
| WU Jin-sheng,DONG Hong-dong,ZHANG Tong-de and LIU Wei-dong.Experimental Study on Cenosphere Mud for Leakage Zone of Ruoergai Uranium Ore Field[J].Exploration Engineering(Drilling & Tunneling),2016,43(3):9-12. |
| |
| Authors: | WU Jin-sheng DONG Hong-dong ZHANG Tong-de and LIU Wei-dong |
| |
| Institution: | Institute of Exploration Technology, CAGS,Chengdu University of Technology,Institute of Exploration Technology, CAGS,The Nuclear Industry Geological Survey of Sichuan |
| |
| Abstract: | Ruoergai uranium deposit is one of the four basic types of uranium ore fields in China, the formations are limestone and silicon limestone with the development of groups longitudinal fissures. There was no mud return while drilling in such kind of formation because of the total lost circulation. It was very difficult to maintain mud properties and borehole stability and a lot of manpower and material resources were spent on this. Based on the analysis on the mechanism of lost circulation, a technical measure was put forward. The basic idea is to reduce leakage pressure for balanced drilling. The research and experiments were carried out on air bubbles mud, micro-bubble mud and cenospheres mud systems. The practice shows that the cenospheres low-density mud system is suitable for drilling operation in Ruoergai uranium ore field. |
| |
| Keywords: | air bubble micro foam mud cenosphere mud leakage zone core drilling |
|
| 点击此处可从《探矿工程》浏览原始摘要信息 |
| 点击此处可从《探矿工程》下载免费的PDF全文 |
