Engineering solutions for casing drilling in pre-mine drainage

Challenges for Development in Mining Science and Mining Industry

Kondratenko, A.S.^1 ; Shakhtorin, I.O.^1

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

关键词: Batch removal;    Casing drilling;    Casing while drillings;    Drainage hole;    Economic efficiency;    Engineering solutions;    Large diameter;    Operating principles;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/262/1/012031/pdf
DOI  :  10.1088/1755-1315/262/1/012031

来源: IOP

【 摘 要 】

The authors discuss application of the casing while drilling technology in pre-mine drainage. The currentness of this technology and its advantages are proved. The scope of the discussion embraces operating principle of the equipment used in casing drilling. A new method for batch removal of drill fines from large-diameter boreholes is described. The economic efficiency of the technology is evaluated in terms of drainage holes drilled using rig SANDVIK DE-880 in Kirov mine at SUEK-Kuzass.