Drilling in Underground Coal Gasification with Coiled Tubing Technologies

Abstract

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.

Keywords

• Underground Coal Gasification
• Coiled Tubing Drilling
• Injection Well
• Production well