Drilling in Underground Coal Gasification with Coiled Tubing Technologies

Acta Montanistica Slovaca

关键词: Underground Coal Gasification;    Coiled Tubing Drilling;    Injection Well;    Production well;   

DOI  :  

来源: DOAJ

【 摘 要 】

Underground coal gasification is the potential to provide a clean, efficient and convenient source of energy from coal seams where traditional mining methods are either impossible or uneconomical. The latest drilling technology – drilling directional injection well with down well assembly. The is used world- wide from 1990 injection well is transmitting the coal seam along its location. The coil – tubing equipment transport the gasification agents (oxygen and water) into the coal cavity, where give out gasification.

【 授权许可】

Unknown