Experimental study on the effect of coal intensity on drillings temperature
Abstract：Using devices to test drillings temperature,drillings temperature in the course of drilling was got,and a new way to test coal intensity was formulated.Experiment results show that relations between coal intensity and the temperature,temperature gradient of drilling cuttings are nearly linear,when coal-mass of different intensity is drilled down to the same depth at the same rate;the temperature gradient is almost equal and independent with coal intensity when stop drilling.
Keywords：coal intensitydrillings temperatureelectric coal drillcoal and gas outburst
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 463-466 )