Impact of water lock on gas desorption of coal with gas
Abstract：Enlightenment by the study of water lock damage in oil and natural gas mining field, used independent re- search and development gas desorption experimental measuring device under external solution invasion, experiment ob- tained the 0. 025 % penetrant solution invasion influence to gas natural desorption. The results show that external solu- tion invasion can reduce gas desorption quantity, to gas pressure is 2.0,1.5,1.0 and 0. 5 MPa says, external solution can make gas desorption quantity reduce 7% -26% in 1 h,and reduce 26% -41% in 12 h,indicated it has feasible that use water lock to prevent gas exceeding limit on coal face.
Keywords：water lockgas exceeding limitnatural desorptionpenetrant solution
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：6( 253-258 )