Title

Potential Advantages to Water Jet Drilling for Use in In-Situ Coal Gasification Processes

Abstract

Current methods of in-situ gasification require that inter-well connection be by means of either reverse combustion burning or by directional drilling. High-pressure water jet drills concentrate the energy of cutting in a small area and the total thrust required to advance this system is thus minimized. A test unit operating at a pressure of 70 MPa and a flow rate of 90 L/min has been used to demonstrate, in a surface trial, the practicality of this concept for interconnecting two in-situ gasification wells located 20 m apart.

Department(s)

Mining and Nuclear Engineering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1981 American Society of Mechanical Engineers (ASME), All rights reserved.


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