| Geological Publishing House, Institute of Exploration Technology, Chinese Academy of Geological Sciences | Host |
| Citation: |
WU Jin-sheng, DONG Hong-dong, ZHANG Tong-de, LIU Wei-dong. Experimental Study on Cenosphere Mud for Leakage Zone of Ruoergai Uranium Ore Field[J]. DRILLING ENGINEERING, 2016, (3): 9-12. doi: 10.3969/j.issn.1672-7428.2016.03.002
|
Experimental Study on Cenosphere Mud for Leakage Zone of Ruoergai Uranium Ore Field
-
Abstract
Ruoergai uranium deposit is one of the four basic types of uranium ore fields in China, the formations are lime-stone 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 sta-bility and a lot of manpower and material resources were spent on this.Based on the analysis on the mechanism of lost cir-culation, a technical measure was put forward.The basic idea is to reduce leakage pressure for balanced drilling.The re-search and experiments were carried out on air bubbles mud, micro-bubble mud and cenospheres mud systems.The prac-tice 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
-
-
Access History
Export File
Citation
WU Jin-sheng, DONG Hong-dong, ZHANG Tong-de, LIU Wei-dong. Experimental Study on Cenosphere Mud for Leakage Zone of Ruoergai Uranium Ore Field[J]. DRILLING ENGINEERING, 2016, (3): 9-12. doi: 10.3969/j.issn.1672-7428.2016.03.002
DownLoad: