摘要
CO_2气相压裂技术利用CO_2的液气两相转化产生的压力使煤体增透,同时利用CO_2置换CH_4,此技术应用后彻底消除了掘进工作面的突出危险性,同时使掘进作业的千米预警次数由3.27次/km下降至0.63次/km,使掘进工作面的不均匀涌出系数由1.78下降至1.34。
CO2 gas fracturing technology with pressure liquid gas two-phase C02 conversion to coal permeability increasing, at the same time using C02 replacement CH4 after the application of this technique to eliminate the outburst danger, while the number of kilometers warning excavation operation decreased from 3.27 to 0.63, the tunneling working surface uneven emission the coefficient decreased from 1.78 to 1.34.
作者
王志坚
WANG Zhi-jian(Yuwu Coal Limited Liability Company, Lu＇an Group, Changzhi 046103, Chin)
出处
《煤炭技术》
CAS
2018年第4期157-158,共2页
Coal Technology
关键词
CO2气相压裂
千米预警次数
不均匀涌出系数
CO2 gas phase fracturing
kilometer early warning times
inhomogeneous emission coefficient
