水锁对含瓦斯煤体的瓦斯解吸的影响  

Impact of water lock on gas desorption of coal with gas

作　　者：张国华[1,2] 梁冰[2] 毕业武[1] 

机构地区：[1]黑龙江科技学院安全工程学院,黑龙江哈尔滨150027 [2]辽宁工程技术大学,辽宁阜新123000

出　　处：《煤炭学报》2012年第2期253-258,共6页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)资助项目(2011CB201206-2);黑龙江省教育厅基金资助项目(11513098)

摘　　要：受石油与天然气开采界水锁损害研究的启示,利用自主研发的外液侵入条件下瓦斯解吸实验装置,实验获得了0.025%渗透剂溶液侵入条件下对瓦斯自然解吸的影响。结果表明:外液的侵入能够降低瓦斯的解吸量,对于2.0,1.5,1.0和0.5 MPa四个含瓦斯压力水平而言,在1 h以内能够将瓦斯解吸量降低7%～26%,在12 h时能降低26%～41%,说明利用水锁防止工作面瓦斯超限具有可行性。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.

关 键 词：水锁 瓦斯超限 自然解吸 渗透剂溶液 

分 类 号：TD713.3[矿业工程—矿井通风与安全]